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  • 1
    Monograph available for loan
    Monograph available for loan
    Dordrecht [u.a.] : Kluwer
    Call number: M 99.0101 ; AWI G7-86-0694
    Description / Table of Contents: This book is designed as a comprehensive mathematical introduction to the science of the behaviour of glaciers and ice sheets in their geophysical environment. Its main objective is to provide a better fundamental understanding of the problems of ice mechanics and fluid mechanics of large ice masses, and to connect and unify some of the approaches that have been developed in different disciplines concerned with glaciers and ice sheets. The first two chapters provide the physical background by treating ice within the framework of continuum physics and material science. The central part of the book deals with the conceptualization and mathematical formulation of glacier and ice sheet flow. Considerations concerning fluid mechanics and thermodynamics are given equal attention. The aim is to deduce common glaciological formulae from first principles and to state clearly the assumptions which lie behind the approximations. This allows the extension of the results - known to glaciologists in plane flow only - to three dimensions, thus paving the way for further research.
    Type of Medium: Monograph available for loan
    Pages: xxxvii, 510 S.
    ISBN: 9027714738
    Series Statement: Mathematical approaches to geophysics
    Classification:
    Meteorology and Climatology
    Language: English
    Note: TABLE OF CONTENTS: ACKNOWLEDGEMENTS. - PREFACE. - INTRODUCTION. - SYMBOLS AND NOTATION. - PART I. FUNDAMENTAL PHYSICS AND MATERIALS TECHNOLOGY OF ICE. - 1.General Concepts. - 1. Introduction. - 2. Equations of Balance. - 3. Material Response. - (a) General constitutive relations, simple materials. - (b) The rule of material objectivity. - (c) Material symmetry. - (d) Constitutive response for isotropie bodies. - (e) Materials with bounded memory-some constitutive representations. - (f) Incompressibility. - (g) Some representations of isotropic functions. - 4. The Entropy Principle. - (a) The viscous heat-conducting compressible fluid. - (b) The viscous heat-conducting incompressible fluid. - (c) Pressure and extra stress as independent variables. - (d) Thermoelastic solid. - (e) Final remarks. - 5. Phase Changes. - (a) Phase changes for a viscous compressible heat-conducting fluid. - (b) Phase changes for a viscous incompressible heat-conducting fluid. - References. - 2. A Brief Summary of Constitutive Relations for Ice. - 1. Preliminary Remarks. - 2. The Mechanical Properties of Hexagonal Ice. - (a) The crystal structure of ordinary ice. - (b) The elastic behavior of hexagonal ice. - (c) The inelastic behavior of single-crystal ice. - 3. The Mechanical Properties of Polycrystalline Ice. - (a) The elastic behavior of polycrystalline ice. - (b) Linear viscoelastic properties of polycrystalline ice. - (α) General theory. - (β) Experimental results. - (c) Non-linear viscous deformation and creep. - (α) Results of creep tests. - (β) Generalization to a three-dimensional flow law. - (γ) Other flow laws. - 4. The Mechanical Properties of Sea Ice. - (a) The phase diagram of standard sea ice and its brine conten. - (b) Elastic properties. - (c) Other material properties. - References. - PART II. THE DEFORMATION OF AN ICE MASS UNDER ITS OWN WEIGHT. - 3. A Mathematical Ice-flow Model and its Application to Parallel-sided Ice Slabs. - 1. Motivation and Physical Description. - 2. The Basic Model - Its Field Equations and Boundary Conditions. - (a) The field equations. - (α) Cold ice region. - (β) Temperate ice region. - (b) Boundary conditions. - (α) At the free surface. - (β) Along the ice-water interface. - (γ) Along the bedrock surface. - (δ) Along the melting surface. - 3. The Response of a Parallel-sided Ice Slab to Steady Conditions. - (a) Dimensionless forms of the field equations. - (b) Parallel-sided ice slab, a first approximation to glacier and ice-shelf flow dynamics. - (α) Velocity and temperature fields x-independent. - (β) Extending and compressing flow. - (γ) Floating ice shelves 4. Concluding Remark. - References. - 4. Thermo-mechanical Response of Nearly Parallel-sided Ice Slabs Sliding over their Bed. - 1. Motivation. - 2. The Basic Boundary-value Problem and its Reduction to Linear Form. - 3. The Solution of the Boundary-value Problems. - (a) Zeroth-order problem. - (b) First-order problem. - (α) Harmonic perturbation from uniform flow for a zero accumulation rate. - (β) Analytic solution for a Newtonian fluid. - (γ) Numerical solution for non-linear rheology. - (δ) Effect of a steady accumulation rate. - (ε) A historical note on a previous approach. - (η) The first-order temperature problem. - (c) Numerical results for steady state. - (α) Transfer of bottom protuberances to the surface. - (β) Basal stresses. - (γ) Surface velocities. - (δ) Effect of a steady accumulation rate. - 4. Remarks on Response to a Time-dependent Accumulation Rate. - 5. Surface-wave Stability Analysis. - (a) The eigenvalue problem. - (b) Discussion of results. - 6. Final Remarks. - References. - 5. The Application of the Shallow-ice Approximation. - 1. Background and Previous Work. - 2. Derivation of the Basal Shear-stress Formula by Integrating the Momentum Equations over Ice Thickness. - (a) Derivation. - (b) The use of the basal shear-stress formula in applied glaciology. - 3. Solution of the Ice-flow Problem using the Shallow-ice Approximation. - (a) Governing equations. - (b) Shallow-ice approximation. - (c) Construction of the perturbation solution. - (d) Results. - (e) Temperature field. - 4. Theoretical Steady-state Profiles. - (a) Earlier theories and their limitations. - (b) Surface profiles determined by using the shallow-ice approximation. - 5. An Alternative Scaling - a Proper Analysis of Dynamics of Ice Sheets with Ice Divides. - (a) Finite-bed inclination. - (b) Small-bed inclination. - (c) Illustrations. - References. - 6. The Response of a Glacier or an Ice Sheet to Seasonal and Climatic Changes. - 1. Statement of the Problem. - 2. Development of the Kinematic Wave Theory. - (a) Full non-linear theory. - (b) Perturbation expansion-linear theory. - (c) An estimate for the coefficients C and D. - (d) Boundary and initial conditions. - 3. Theoretical Solutions for a Model Glacier. - (a) Solutions neglecting diffusion. - (b) Theoretical solutions for a diffusive model. - (α) Coefficient functions for the special model. - (β) Solution for a step function. - (γ) General solution for uniform accumulation rate. - (δ) The inverse problem - calculation of climate from variations of the snout. - 4. General Treatment for an Arbitrary Valley Glacier. - (a) Fourier analysis in time. - (α) Low-frequency response. - (β) High-frequency response. - (γ) Use of the results. - (b) Direct integration methods. - 5. Derivation of the Surface-wave Equation from First Principles Non-linear Theory. - (a) Surface waves in the shallow-ice approximation. - (α) Integration by the methods of characteristics. - (β) An illustrative example. - (γ) A remark on linearization. - (δ) Effects of diffusion. - (b) Remarks regarding time-dependent surface profiles in ice sheets. - (c) Long waves in an infinite ice slab - Is accounting for diffusion enough?. - (α) Basic equations. - (β) Construction of perturbation solutions. - (γ) Numerical results. - 6. Concluding Remarks. - References. - 7. Three-dimensional and Local Flow Effects in Glaciers and Ice Sheets. - 1. Introduction. - 2. Effect of Valley Sides on the Motion of a Glacier. - (a) Solutions in special cases. - (α) Exact solutions for the limiting cases. - (β) Solution for a slightly off-circular channel. - (γ) A note on very deep and wide channels. - (b) A useful result for symmetrical channels with no boundary slip. - (c) Numerical solution - discussion of results. - 3. Three-dimensional Flow Effects in Ice Sheets. - (a) Basic equations. - (b) Decoupling of the stress-velocity problem from the problem of surface profile. - (c) The equation describing the surface geometry. - (d) The margin conditions. - 4. Variational Principles. - (a) Fundamental variational theorem. - (b) Variational principle for velocities. - (c) Reciprocal variational theorem. - (d) Maximum and minimum principles. - (e) Adoption of the variational principles to ice problems. - 5. Discussion of Some Finite-element Solutions. - References. - Appendix: Detailed Calculations Pertaining to Higher-order Stresses in the Shallow-ice Approximation. - AUTHOR INDEX. - SUBJECT INDEX.
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  • 2
    Call number: AWI G2-98-0365 ; M 93.0402
    In: Contributions to sedimentology
    Type of Medium: Monograph available for loan
    Pages: IV, 210 S. : Ill., graph. Darst.
    ISBN: 3510570138
    ISSN: 0343-4125
    Series Statement: Contributions to sedimentology 13
    Classification:
    Petrology, Petrography
    Language: English
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  • 3
    Monograph available for loan
    Monograph available for loan
    Ottawa : Geological Survey of Canada
    Associated volumes
    Call number: SR 90.0007(317) ; AWI G6-06-0042
    In: Bulletin
    Type of Medium: Monograph available for loan
    Pages: 49 S. + 4 pl.
    ISBN: 066010637X
    Series Statement: Bulletin / Geological Survey of Canada 317
    Language: English
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  • 4
    Call number: 92.1182 ; AWI A3-88-0317
    Type of Medium: Monograph available for loan
    Pages: VII, 205 S. : graph. Darst.
    ISBN: 9027716765
    Classification:
    Historical Geology
    Language: English
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  • 5
    Call number: SR 99.0054(60) ; ZSP-320(B,60)
    In: German Antarctic North Victoria Land Expedition 1982/83
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 399 S.
    Series Statement: Geologisches Jahrbuch; Reihe B 60
    Language: English
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  • 6
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: M 92.0939 ; M 92.1193 ; AWI G1-92-0382
    Type of Medium: Monograph available for loan
    Pages: XIV, 472 S.
    ISBN: 3540513418
    Classification:
    Petrology, Petrography
    Language: English
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  • 7
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier
    Associated volumes
    Call number: M 92.1172 ; PIK N 531-93-0148
    In: Ecosystems of the world
    Type of Medium: Monograph available for loan
    Pages: XIII, 643 S. : Abb.
    ISBN: 0444420592
    Series Statement: Ecosystems of the world
    Language: English
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  • 8
    Call number: AWI G5-98-0371
    In: SEPM short course, No. 10
    Type of Medium: Monograph available for loan
    Pages: Getrennte Zählung , Illustrationen , 30 cm
    Series Statement: SEPM short course 10
    Language: English
    Note: CONTENTS: Introduction / Michael A. Arthur. - Chapter 1: Stable isotopes of oxygen and carbon and their application to sedimentologic and paleoenvironmental problems / Thomas F. Anderson and Michael A. Arthur. - Chapter 2: Stable isotopes of sulfur, nitrogen and deuterium in recent marine environments / Ian R. Kaplan. - Chapter 3: Chemical diagenesis of carbonates: theory and application of trace element technique / Ján Veizer. - Chapter 4: The application of stable isotopes to studies of the origin of dolomite and to problems of diagenesis of clastic sediments / Lynton S. Land. - Bibliography.
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  • 9
    Call number: MOP Per 581 ; MOP Per 581(1/8) ; ZSP-319/A-1(Sonderheft) ; ZSP-319/A-1(Sonderheft, 2. Ex.)
    In: Geodätische und geophysikalische Veröffentlichungen : Reihe 1, Heft 8, Sonderheft 1
    Type of Medium: Series available for loan
    Pages: 107 Seiten , Illustrationen
    Edition: Sonderheft des NKSCAR der DDR
    Series Statement: Geodätische und geophysikalische Veröffentlichungen : Reihe 1 8
    Language: German , English
    Note: Inhalt: I. Zoologische Untersuchungen im Gebiet der sowjetischen Antarktisstation "Bellinghausen" / R. BANNASCH und K. ODENING. - II. Deuterium- und 18O-Variationen in Seen der Schirmacher-Oase (Ostantarktika) / W. RICHTER und G. STRAUCH. - III. Stable isotope investigations in Antarctica / H. SCHÜTZE, G. STRAUCH, K. WETZEL. - IV. The influence of degradation processes on the isotopic composition of Antarctic precipitation / R. DER. - V. Sommerliche Eisvariationen in der Olaf-Prydz-Bucht / H. GERNANDT. - VI. Zur Geologie des nördlichen Teils des Neptune Range / Pensacola-Gebirges (Antarktika) / W. WEBER und L. V. FEDOROV. - VII. Beobachtungen am Krill (Euphausia superba DANA) im atlantischen Sektor der Antarktis in der Sommersaison 1978 und 1979 / S. HOLZLÖHNER. - VIII. Forschungsreise eines Zubringertrawlers in die Antarktis / G. GUBSCH und U. HOFFMANN.
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  • 10
    Call number: AWI P8-89-0293
    In: Heidelberger geographische Arbeiten, Heft 69
    Type of Medium: Monograph available for loan
    Pages: 573 Seiten , Illustrationen , 2 Kartenbeilagen , 24 cm
    ISBN: 3885700697
    Series Statement: Heidelberger geographische Arbeiten 69
    Language: German , English
    Note: Inhaltsverzeichnis: Vorwort. - 1. Zielsetzung und Ablauf der Heidelberg-Ellesmere Island-Expedition 1978 / D. Barsch und L. King. - 2. Das Borup-Fjord-Gebiet in N-Ellesmere Island, N. W. T., Kanada: Entdeckung und Begehung des Gebietes, vorhandene Karten und offizielle Namen / L. King. - 3. Geodätische und photogrammetrische Arbeiten an der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada, im Rahmen der "Heidelberg-Ellesmere-Island-Expedition 1978" / G. Hell. - 4. Geologie, Tektonik und strukturelle Verzeichnung der geomorphologischen Großformen im Expeditionsgebiet Oobloyah Bay - Neil Peninsula, N-Ellesmere Island, N.W.T., Kanada / H. R. Völk. - 5. Witterungsverlauf im Oobloyah-Tal, N-Ellesmere Island, N.W.T., Kanada, vom 24. Juni bis zum 4. August 1978, ein statistischer Wertevergleich / W. A. Flügel. - 6. Das Sommerklima von N-Ellesmere Island, N.W.T., Kanada - eine Beurteilung von Stationswerten unter besonderer Berücksichtigung des Sommers 1978 / L. King. - 7. Zur Geomorphologie des Expeditionsgebietes Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / D. Barsch. - 8. Studien zur gegenwärtigen Geomorphodynamik im Bereich der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / D. Barsch. - 9. Terassen, Flußarbeit und das Modell der exzessiven Talbildungszone im Expeditionsgebiet Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / D. Barsch. - 10. Die Gletscher im Einzugsgebiet des Borup-Fjord, N-Ellesmere Island, N.W.T., Kanada / L. King. - 11. Gletschergeschichtliche Arbeiten im Gebiet zwischen Oobloyah Bay und Esayoo Bay, N-Ellesmere Island, N.W.T., Kanada / L. King. - 12. Glaziologische Beobachtungen an der Stirn des Weber-Gletschers, Borup-Fjord-Gebiet, N-Ellesmere Island, N.W.T., Kanada / D. Barsch, L. King und R. Mäusbacher. - 13. Jungquartäre Delta- und Flußentwicklung im glazialisostatischen Hebungsraum der Oobloyah Bay auf N-Ellesmere Island, N.W.T., Kanada / H. R. Völk. - 14. Hydrologische Studien zum Wasserhaushalt hocharktischer Einzugsgebiete im Bereich des Oobloyah-Tals, N-Ellesmere Island, N.W.T., Kanada / W. A. Flügel. - 15. Hydrochemische Untersuchungen von Niederschlägen, Bodenwasser, Seen und Flüssen im Oobloyah-Tal, N-Ellesmere Island, N.W.T., Kanada / W. A. Flügel. - 16. Geomorphologische Kartierung im Oobloyah-Tal, N-Ellesmere Island, N.W.T., Kanada / R. Mäusbacher. - 17. Gesteinstemperaturen und Insolationsverwitterung im hocharktischen Bereich, Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / H. Eichler. - 18. Kleinformen der hocharktischen Verwitterung im Bereich der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada - Formengenese und Prozesse / H. Eichler. - 19. Oberflächennahe Bodentemperaturmessungen in Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / R. Mäusbacher. - 20. Recent iron ore deposition and heavy metal accumulation in Access Lake, Oobloyah Valley, northern Ellesmere Island, N.W.T., Canada / D. Barsch und G. Müller. - 21. Die Meereisentwicklung im Inneren des östlichen kanadischen Arktisarchipels und ihre Bedeutung für die Arbeiten der Heidelberg-Ellesmere Island-Expedition an der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / L. King. - 22. Gefäßpflanzen von Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada; eine kommentierte Pflanzenliste und phänologische Beobachtungen / R. Mäusbacher. - 23. The mosses of peat mounds, Oobloyah Bay, northern Ellesmere Island, N.W.T., Canada / L. King. - 24. Beobachtungen zu organischen Kleinformen im Oobloyah Tal, N-Ellesmere Island, N.W.T., Kanada / W. A. Flügel und R. Mäusbacher. - 25. Faunal notes of the Heidelberg Ellesmere Island Expedition 1978, Oobloyah Bay, northern Ellesmere Island, N.W.T., Canada / D. Barsch und L. King. - Anlage 1: Orthophotokarte 〈1 : 25 000〉 Oobloyah Bay. - Anlage 2: Geomorphologische Karte 〈1 : 25 000〉 Oobloyah Bay. - Anlage 3: Radiocarbondaten. - Anlage 4: Planung, Einkauf und Lagerung der Nahrungsmittel. , Beiträge teilweise in deutsch, teilweise in englisch
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  • 11
    Call number: AWI Bio-98-0228
    In: Komarov lectures
    Description / Table of Contents: Contents: Translator's foreword. - Preface. - Acknowledgements. - 1 Division of the Arctic into geobotanical areas. - 2 The geobotanical regions of the Arctic: the tundra region. - 3 The geobotanical regions of the Arctic: the region of the arctic polar deserts. - 4 Division of the Antarctic into geobotanical areas. - 5 Conclusions. - References. - List of Latin plant names. - Index
    Type of Medium: Monograph available for loan
    Pages: 247 S. : graph. Darst.
    ISBN: 0521231191
    Series Statement: Komarov lectures 29
    Uniform Title: Geobotaničeskoe rajonirovanie Arktiki i Antarktiki
    Language: English
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  • 12
    Call number: ZSP-168-640
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: Series available for loan
    Pages: ii, 192 S. : Ill., graph. Darst., Kt.
    Series Statement: Berichte zur Polar- und Meeresforschung 640
    Language: English
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  • 13
    Monograph available for loan
    Monograph available for loan
    Cambridge : Cambridge University Press
    Call number: AWI G3-11-0064
    Description / Table of Contents: This is the first textbook to address all the components of the Earth's cryosphere - all forms of snow and ice, both terrestrial and marine. It provides a concise but comprehensive summary of snow cover, glaciers, ice sheets, lake and river ice, permafrost, sea ice and icebergs - their past history and projected future state. It is designed for courses at upper undergraduate and graduate level in environmental science, geography, geology, glaciology, hydrology, water resource engineering and ocean sciences. It also provides a superb up-to-date summary for researchers of the cryosphere. The book includes an extensive bibliography, numerous figures and color plates, thematic boxes on selected topics and a glossary. The book builds on courses taught by the authors for many decades at the University of Colorado and the University of Alberta. Whilst there are many existing texts on individual components of the cryosphere, no other textbook covers the whole cryosphere.
    Type of Medium: Monograph available for loan
    Pages: XV, 472 Seiten , Illustrationen , 25x19x2 cm
    Edition: First published
    ISBN: 9780521156851
    Language: English
    Note: Contents Preface Ackowledgements 1 Introduction 1.1 Definition and extent 1.2 The role of the cryosphere in the climate system 1.3 The organization of cryospheric observations and research 1.4 Remote sensing of the cryosphere Part I The terrestrial cryosphere 2A Snowfall and snow cover 2.1 History 2.2 Snow formation 2.3 Snow cover 2.4 Snow cover modeling in land surface schemes of GCMs 2.5 Snow interception by the canopy 2.6 Sublimation 2.7 Snow metamorphism 2.8 In situ measurements of snow 2.9 Remote sensing of snowpack properties and snow-cover area 2.10 Snowmelt modeling 2.11 Recent observed snow cover changes 2B Avalanches 2.12 History 2.13 Avalanche characteristics 2.14 Avalanche models 2.15 Trends' in avalanchf:' conditions 3 Glaciers and ice caps 3.1 History 3.2 Definitions 3.3 Glacier characteristics 3.4 Mass balance 3.5 Remote sensing 3.6 Glacier flow and flowlines 3.7 Scaling 3.8 Glacier modeling 3.9 Ice caps 3.10 Glacier hydrology 3.11 Changes in glaciers and ice caps 4 Ice sheets 4.1 History of exploration 4.2 Mass balance 4.3 Remote sensing 4.4 Mechanisms of ice sheet changes 4.5 The Greenland Ice Sheet 4.6 Antarctica 4.7 Overall ice sheet changes 4.8 Ice sheet models 4.9 Ice sheet and ice shelf interaction 4.10 Ice sheet contributions to sea level change 5 Frozen ground and permafrost 5.1 History 5.2 Frozen ground definitions and extent 5.3 Thermal relationships 5.4 Vertical characteristics of permafrost 5.5 Remote sensing 5.6 Ground ice 5.7 Permafrost models 5.8 Geomorphological features associated with permafrost 5.9 Changes in permafrost and soil freezing 6 Freshwater ice 6.1 History 6.2 Lake ice 6.3 Changes in lake ice cover 6.4 River ice 6.5 Trends in river ice cover 6.6 Icings Part II The marine cryosphere 7 Sea ice 7.1 History 7.2 Sea ice characteristics 7.3 Ice drift and ocean circulation 7.4 Sea ice models 7.5 Leads, polynyas, and pressure ridges 7.6 Ice thickness 7.7 Trends in sea ice extent and thickness 8 Ice shelves and icebergs 8.1 History 8.2 Ice shelves 8.3 Ice streams 8.4 Conditions beneath ice shelves 8.5 Ice shelf buttressing 8.6 Icebergs 8.7 Ice islands Part Ill The cryosphere past and future 9 The cryosphere in the past 9.1 Introduction 9.2 Snowball Earth and ice-free Cretaceous 9.3 Phanerozoic glaciations 9.4 Late Cenozoic polar glaciations 9.5 The Quaternary 9.6 The Holocene 10 The future cryosphere: impacts of global warming 10.1 Introduction 10.2 General observations 10.3 Recent cryospheric changes 10.4 Climate projections 10.5 Projected changes to Northern Hemisphere snow cover 10.6 Projected changes in land ice 10.7 Projected permafrost changes 10.8 Projected changes in freshwater ice 10.9 Projected sea ice changes Part IV Applications 11 Applications of snow and ice research 11.1 Snowfall 11.2 Freezing precipitation 11.3 Avalanches 11.4 Ice avalanches 11.5 Winter sports industry 11.6 Water resources 11.7 Hydropower 11.8 Snow melt floods 11.9 Freshwater ice 11.10 Ice roads 11.11 Sea ice 11.12 Glaciers and ice sheets 11.13 Icebergs 11.14 Permafrost and ground ice I 1.15 Seasonal ground freezing Glossary References Index
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  • 14
    Series available for loan
    Series available for loan
    Hannover : Schweizerbart
    Associated volumes
    Call number: SR 99.0054(41) ; ZSP-320(B,41)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 276 S. + 1 Kt.-Beil.
    Series Statement: Geologisches Jahrbuch : Reihe B 41
    Language: English
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  • 15
    Series available for loan
    Series available for loan
    [Zürich] : IAHS (ICSI)
    Associated volumes
    Call number: AWI G7-12-0001
    In: Glacier mass balance bulletin
    Type of Medium: Series available for loan
    Pages: 102 S. : Ill., graph. Darst., Kt.
    Language: English
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  • 16
    Call number: AWI A3-12-0018
    In: Atmospheric and oceanographic sciences library, Vol. 43
    Description / Table of Contents: The Arctic is now experiencing some of the most rapid and severe climate change on earth. Over the next 100 years, climate change is expected to accelerate, contributing to major physical, ecological, social, and economic changes, many of which have already begun. Changes in arctic climate will also affect the rest of the world through increased global warming and rising sea levels. The volume addresses the following major topics: research results in observing aspects of the Arctic climate system and its processes across a range of time and space scales; representation of cryospheric, atmospheric, and oceanic processes in models, including simulation of their interaction with coupled models; our understanding of the role of the arctic in the global climate system, its response to large-scale climate variations, and the processes involved.
    Type of Medium: Monograph available for loan
    Pages: XIV, 464 Seiten , Illustrationen
    ISBN: 9789400720268
    Series Statement: Atmospheric and oceanographic sciences library 43
    Language: English
    Note: Contents: 1 The origins of ACSYS / Victor Savtchenko. - PART I OBSERVATIONS: 2 Advances in Arctic atmospheric research / James E. Overland and Mark C. Serreze. - 3 Sea-ice observation: advances and challenges / Humfrey Melling. - 4 Observations in the ocean / Bert Rudels, Leif Anderson, Patrick Eriksson, Eberhard Fahrbach, Martin Jakobsson, E. Peter Jones, Humfrey Melling, Simon Prinsenberg, Ursula Schauer, and Tom Yao. - 5 Observed hydrological cycle / Hermann Mächel, Bruno Rudolf, Thomas Maurer, Stefan Hagemann, Reinhard Hagenbrock, Lev Kitaev, Eirik J. Førland, Vjacheslav Rasuvaev, and Ole Einar Tveito. - 6 Interaction with the global climate system / T. A. McClimans, G. V. Alekseev, O. M. Johannessen, and M. W. Miles. - PART II MODELLING: 7 Mesoscale modelling of the Arctic atmospheric boundary layer and its interaction with sea ice / Christof Lüpkes, Timo Vihma, Gerit Birnbaum, Silke Dierer, Thomas Garbrecht, Vladimir M. Gryanik, Micha Gryschka, Jörg Hartmann, Günther Heinemann, Lars Kaleschke, Siegfried Raasch, Hannu Savijärvi, K. Heinke Schlünzen, and Ulrike Wacker. - 8 Arctic regional climate models / K. Dethloff, A. Rinke, A. Lynch, W. Dorn, S. Saha, and D. Handorf. - 9 Progress in hydrological modeling over high latitudes: under arctic climate system study (ACSYS) / Dennis P. Lettenmaier and Fengge Su. - 10 Sea-ice-ocean modelling / Rüdiger Gerdes and Peter Lemke. - 11 Global climate models and 20th and 21st century Arctic climate change / Cecilia M. Bitz, Jeff K. Ridley, Marika Holland, and Howard Cattle. - 12 ACSYS: Scientific foundation for the climate and cryosphere (CliC) project / Konrad Steffen, Daqing Yang, Vladimir Ryabinin, and Ghassem Asrar.
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  • 17
    Monograph available for loan
    Monograph available for loan
    San Diego [u.a.] : Academic Press
    Associated volumes
    Call number: AWI A6-92-0276 ; PIK N 455-00-0309
    In: International geophysics series, Vol. 30
    Type of Medium: Monograph available for loan
    Pages: XV, 662 S. , Ill., Kt.
    ISBN: 0122835204 , 0-12-283522-0
    Series Statement: International geophysics series 30
    Language: English
    Note: Contents: Preface. - Acknowledgments. - 1 How the Ocean-Atmosphere System Is Driven. - 1.1 Introduction. - 1.2 The Amount of Energy Received by the Earth. - 1.3 Radiative Equilibrium Models. - 1.4 The Greenhouse Effect. - 1.5 Effects of Convection. - 1.6 Effects of Horizontal Gradients. - 1.7 Variability in Radiative Driving of the Earth. - 2 Transfer of Properties between Atmosphere and Ocean. - 2.1 Introduction. - 2.2 Contrasts in Properties of Ocean and Atmosphere. - 2.3 Momentum Transfer between Air and Sea, and the Atmosphere's Angular Momentum Balance. - 2.4 Dependence of Exchange Rates on Air-Sea Velocity, Temperature, and Humidity Differences. - 2.5 The Hydrological Cycle. - 2.6 The Heat Balance of the Ocean. - 2.7 Surface Density Changes and the Thermohaline Circulation of the Ocean. - 3 Properties of a Fluid at Rest. - 3.1 The Equation of State. - 3.2 Thermodynamic Variables. - 3.3 Values of Thermodynamic Quantities for the Ocean and Atmosphere. - 3.4 Phase Changes. - 3.5 Balance of Forces in a Fluid at Rest. - 3.6 Static Stability. - 3.7 Quantities Associated with Stability. - 3.8 Stability of a Saturated Atmosphere. - 3.9 Graphical Representation of Vertical Soundings. - 4 Equations Satisfied by a Moving Fluid. - 4.1 Properties of a Material Element. - 4.2 Mass Conservation Equation. - 4.3 Balance for a Scalar Quantity like Salinity. - 4.4 The Internal Energy (or Heat) Equation. - 4.5 The Equation of Motion. - 4.6 Mechanical Energy Equation. - 4.7 Total Energy Equation. - 4.8 Bernoulli's Equation. - 4.9 Systematic Effects of Diffusion. - 4.10 Summary List of the Governing Equations. - 4.11 Boundary Conditions. - 4.12 A Coordinate System for Planetary Scale Motions. - 5 Adjustment under Gravity in a Nonrotating System. - 5.1 Introduction: Adjustment to Equilibrium. - 5.2 Perturbations from the Rest State for a Homogenous Inviscid Fluid. - 5.3 Surface Gravity Waves. - 5.4 Dispersion. - 5.5 Short-Wave and Long-Wave Approximations. - 5.6 Shallow-Water Equations Derived Using the Hydrostatic Approximation. - 5.7 Energetics of Shallow-Water Motion. - 5.8 Seiches and Tides in Channels and Gulfs. - 6 Adjustment under Gravity of a Density-Stratified Fluid. - 6.1 Introduction. - 6.2 The Case of Two Superposed Fluids of Different Density. - 6.3 The Baroclinic Mode and the Rigid Lid Approximation. - 6.4 Adjustments within a Continuously Stratified Incompressible Fluid. - 6.5 Internal Gravity Waves. - 6.6 Dispersion Effects. - 6.7 Energetics of internal waves. - 6.8 Internal Waves Generated at a Horizontal Boundary. - 6.9 Effects on Boundary-Generated Waves of Variations of Buoyancy Frequency with Height. - 6.10 Free Waves in the Presence of Boundaries. - 6.11 Waves of Large Horizontal Scale: Normal Modes. - 6.12 An Example of Adjustment to Equilibrium in a Stratified Fluid. - 6.13 Resolution into Normal Modes for the Ocean. - 6.14 Adjustment to Equilibrium in a Stratified Compressible Fluid. - 6.15 Examples of Adjustment in a Compressible Atmosphere. - 6.16 Weak Dispersion of a Pulse. - 6.17 Isobaric Coordinates. - 6.18 The Vertically Integrated Perturbation Energy Equation in Isobaric Coordinates. - 7 Effects of Rotation. - 7.1 Introduction. - 7.2 The Rossby Adjustment Problem. - 7.3 The Transients. - 7.4 Applicability, to the Rotating Earth. - 7.5 The Rossby Radius of Deformation. - 7.6 The Geostrophic Balance. - 7.7 Relative Geostrophic Currents: The Thermal Wind. - 7.8 Available Potential Energy. - 7.9 Circulation and Vorticity. - 7.10 Conservation of Potential Vorticity for a Shallow Homogeneous Layer. - 7.11 Circulation in a Stratified Fluid and Ertel's Potential Vorticity. - 7.12 Perturbation Forms of the Vorticity Equations in a Uniformly Rotating Fluid. - 7.13 Initialization of Fields for Numerical Prediction Schemes. - 8 Gravity Waves in a Rotating Fluid. - 8.1 Introduction. - 8.2 Effect of Rotation on Surface Gravity Waves: Poincare Waves. - 8.3 Dispersion Properties and Energetics of Poincare Waves. - 8.4 Vertically Propagating Internal Waves in a Rotating Fluid. - 8.5 Polarization Relations. - 8.6 Energetics. - 8.7 Waves Generated at a Horizontal Boundary. - 8.8 Mountain Waves. - 8.9 Effects of Variation of Properties with Height. - 8.10 Finite-Amplitude Topographic Effects. - 8.11 Dissipative Effects in the Upper Atmosphere. - 8.12 The Liouville-Green or WKBJ Approximation. - 8.13 Wave Interactions. - 8.14 The Internal Wave Spectrum in the Ocean. - 8.15 Wave Transport and Effects on the Mean Flow. - 8.16 Quasi-geostrophic Flow (f Plane): The Isallobaric Wind. - 9 Forced Motion. - 9.1 Introduction. - 9.2 Forcing Due to Surface Stress: Ekman Transport. - 9.3 Wind-Generated Inertial Oscillations in the Ocean Mixed Layer. - 9.4 Ekman Pumping. - 9.5 Bottom Friction: Velocity Structure of the Boundary Layer. - 9.6 The Laminar Ekman Layer. - 9.7 The Nocturnal Jet. - 9.8 Tide-Producing Forces. - 9.9 Effect of Atmospheric Pressure Variations and Wind on Barotropic Motion in the Sea: The Forced Shallow-Water Equation. - 9.10 Baroclinic Response of the Ocean to Wind Forcing: Use of Normal Modes. - 9.11 Response of the Ocean to a Moving Storm or Hurricane. - 9.12 Spin-Down by Bottom Friction. - 9.13 Buoyancy Forcing. - 9.14 Response to Stationary Forcing: A Barotropic Example. - 9.15 A Forced Baroclinic Vortex. - 9.16 Equilibration through Dissipative Effects. - 10 Effects of Side Boundaries. - 10.1 Introduction. - 10.2 Effects of Rotation on Seiches and Tides in Narrow Channels and Gulfs. - 10.3 Poincare Waves in a Uniform Channel of Arbitrary Width. - 10.4 Kelvin Waves. - 10.5 The Full Set of Modes for an Infinite Channel of Uniform Width. - 10.6 End Effects: Seiches and Tides in a Gulf That Is Not Narrow. - 10.7 Adjustment to Equilibrium in a Channel. - 10.8 Tides. - 10.9 Storm Surges on an Open Coastline: The Local Solution. - 10.10 Surges Moving along the Coast: Forced Kelvin Waves. - 10.11 Coastal Upwelling. - 10.12 Continental Shelf Waves. - 10.13 Coastally Trapped Waves. - 10.14 Eastern Boundary Currents. - 11. The Tropics. - 11.1 Introduction. - 11.2 Effects of Earth's Curvature: Shallow-Water Equations on the Sphere. - 11.3 Potential Vorticity for a Shallow Homogeneous Layer. - 11.4 The Equatorial Beta Plane. - 11.5 The Equatorial Kelvin Wave. - 11.6 Other Equatorially Trapped Waves. - 11.7 The Equatorial Waveguide: Gravity Waves. - 11.8 Planetary Waves and Quasi-geostrophic Motion. - 11.9 Baroclinic Motion near the Equator. - 11.10 Vertically Propagating Equatorial Waves. - 11.11 Adjustment under Gravity near the Equator. - 11.12 Transient Forced Motion. - 11.13 Potential Vorticity for Baroclinic Motion: The Steady Limit. - 11.14 Steady Forced Motion. - 11.15 The Tropical Circulation of the Atmosphere. - 11.16 Tropical Ocean Currents. - 12 Mid-latitudes. - 12.1 Introduction. - 12.2 The Mid-latitude Beta Plane. - 12.3 Planetary Waves. - 12.4 Spin-Up of the Ocean by an Applied Wind Stress. - 12.5 Steady Ocean Circulation. - 12.6 Western Boundary Currents. - 12.7 Vertical Propagation of Planetary Waves in a Medium at Rest. - 12.8 Nonlinear Quasi-geostrophic Flow in Three Dimensions. - 12.9 Small Disturbances on a Zonal Flow Varying with Latitude and Height. - 12.10 Deductions about Vertical Motion from the Quasi-geostrophic Equations. - 13 Instabilities, Fronts, and the General Circulation. - 13.1 Introduction. - 13.2 Free Waves in the Presence of a Horizontal Temperature Gradient. - 13.3 Baroclinic Instability: The Eady Problem. - 13.4 Baroclinic Instability: The Charney Problem. - 13.5 Necessary Conditions for Instability. - 13.6 Barotropic Instability. - 13.7 Eddies in the Ocean. - 13.8 Fronts. - 13.9 The Life Cycle of a Baroclinic Disturbance. - 13.10 General Circulation of the Atmosphere. - Appendix One Units and Their SI Equivalents. - Appendix Two Useful
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  • 18
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge Univ. Press
    Call number: PIK N 106-16-89934
    Type of Medium: Monograph available for loan
    Pages: XV, 488 S. , Ill., graph. Darst.
    ISBN: 9780521851039 (hbk.)
    Language: English
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  • 19
    Call number: PIK D 025-16-89988
    Type of Medium: Monograph available for loan
    Pages: XXVIII, 186 Seiten , 21 cm
    ISBN: 9780262019125 (hardcover)
    Series Statement: Belfer center studies in international security
    Uniform Title: Interviews. Selections
    Language: English
    Note: The future of China -- The future of the United States -- The future of U.S.-China relations -- The future of India -- The future of Islamic extremism -- The future of national economic growth -- The future of geopolitics and globalization -- The future of democracy -- How Lee Kuan Yew thinks -- Conclusion..
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  • 20
    Call number: PIK D 029-17-90802
    Description / Table of Contents: Examines how knowledge regimes are organized, operate, and have changed over the last thirty years in the United States, France, Germany, and Denmark. They show how there are persistent national differences in how policy ideas are produced. Some countries do so in contentious, politically partisan ways, while others are cooperative and consensus oriented. They find that while knowledge regimes have adopted some common practices since the 1970s, tendencies toward convergence have been limited and outcomes have been heavily shaped by national contexts.
    Type of Medium: Monograph available for loan
    Pages: XVIII, 401 Seiten , graph. Darst.
    ISBN: 9780691161167 (pbk) , 9780691150314 (cloth)
    Language: English
    Note: Contents: Preface ; Chapter 1: Knowledge Regimes and the National Origins of Policy Ideas ; Part I: The Political Economy of Knowledge Regimes ; Chapter 2: The Paradox of Partisanship in the United States ; Chapter 3: The Decline of Dirigisme in France ; Chapter 4: Coordination and Compromise in Germany ; Chapter 5: The Nature of Negotiation in Denmark ; Reprise: Initial Reflections on the National Cases ; Part II: Issues of Similarity and Impact ; Chapter 6: Limits of Convergence ; Chapter 7: Questions of Influence ; Part III: Conclusions ; Chapter 8: Summing Up and Normative Implications ; Postscript: An Agenda for Future Research ; Appendix: Research Design and Methods
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  • 21
    Monograph available for loan
    Monograph available for loan
    New York, NY [u.a.] : Russell Sage Foundation [u.a.]
    Call number: PIK D 020-15-0140
    Type of Medium: Monograph available for loan
    Pages: XV, 329 S. , graph. Darst.
    ISBN: 0691153973 (hardcover) , 9780691153971 (hardcover) , 9780691162423 (pbk)
    Language: English
    Note: Introduction -- Citizen competence and democratic decision-making -- Data and methods -- The preference/policy link -- Policy domains and democratic responsiveness -- Interest groups and democratic responsiveness -- Parties, elections, and democratic responsiveness -- Democratic responsiveness across time -- Money and American politics..
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  • 22
    Monograph available for loan
    Monograph available for loan
    Princeton, NJ [u.a.] : Princeton Univ. Press
    Call number: PIK D 020-15-0141
    Description / Table of Contents: "Rethinking Private Authority examines the role of non-state actors in global environmental politics, arguing that a fuller understanding of their role requires a new way of conceptualizing private authority. Jessica Green identifies two distinct forms of private authority--one in which states delegate authority to private actors, and another in which entrepreneurial actors generate their own rules, persuading others to adopt them.Drawing on a wealth of empirical evidence spanning a century of environmental rule making, Green shows how the delegation of authority to private actors has played a small but consistent role in multilateral environmental agreements over the past fifty years, largely in the area of treaty implementation. This contrasts with entrepreneurial authority, where most private environmental rules have been created in the past two decades. Green traces how this dynamic and fast-growing form of private authority is becoming increasingly common in areas ranging from organic food to green building practices to sustainable tourism. She persuasively argues that the configuration of state preferences and the existing institutional landscape are paramount to explaining why private authority emerges and assumes the form that it does. In-depth cases on climate change provide evidence for her arguments.Groundbreaking in scope, Rethinking Private Authority demonstrates that authority in world politics is diffused across multiple levels and diverse actors, and it offers a more complete picture of how private actors are helping to shape our response to today's most pressing environmental problems"--
    Description / Table of Contents: Rethinking Private Authority examines the role of non-state actors in global environmental politics, arguing that a fuller understanding of their role requires a new way of conceptualizing private authority. Jessica Green identifies two distinct forms of private authority--one in which states delegate authority to private actors, and another in which entrepreneurial actors generate their own rules, persuading others to adopt them.Drawing on a wealth of empirical evidence spanning a century of environmental rule making, Green shows how the delegation of authority to private actors has played a small but consistent role in multilateral environmental agreements over the past fifty years, largely in the area of treaty implementation. This contrasts with entrepreneurial authority, where most private environmental rules have been created in the past two decades. Green traces how this dynamic and fast-growing form of private authority is becoming increasingly common in areas ranging from organic food to green building practices to sustainable tourism. She persuasively argues that the configuration of state preferences and the existing institutional landscape are paramount to explaining why private authority emerges and assumes the form that it does. In-depth cases on climate change provide evidence for her arguments.Groundbreaking in scope, Rethinking Private Authority demonstrates that authority in world politics is diffused across multiple levels and diverse actors, and it offers a more complete picture of how private actors are helping to shape our response to today's most pressing environmental problems.
    Type of Medium: Monograph available for loan
    Pages: XII, 215 S. , graph. Darst.
    ISBN: 9780691157580 (hardback) , 9780691157597 (paperback)
    Language: English
    Note: A theory of private authorityAgents of the state : a century of delegation in international environmental lawGovernors of the market : the evolution of entrepreneurial authorityAtmospheric police : delegated authority in the clean development mechanismAtmospheric accountants : entrepreneurial authority and the greenhouse gas protocol..
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  • 23
    Call number: PIK B 160-18-91755
    Type of Medium: Monograph available for loan
    Pages: X, 268 Seiten , Diagramme
    ISBN: 9780415437530 , 9781138799561 , 9780203830673
    Series Statement: Routledge studies in contemporary political economy
    Language: English
    Note: Contents: 1. Environmental Challenges of the 21st Century and the Need for Interdisciplinary Political Economy ; Part 1: Foundations ; 2. Climate Change: Lessons for Our Future from the Distant Past ; 3. Managerial, Institutional and Evolutionary Approaches to Environmental Economics: Theoretical and Policy Implications ; 4. Behavioural Economics: Seven Key Principles for Environmental Policy ; 5. The Whole Systems Approach in Ecological Economics ; Part 2: Innovation ; 6. Systems of Innovation: National, Regional and Technological Innovation Systems ; 7. Policy Support for Environmental Innovation ; 8.A Paradigm Shift in Economics: Endogenous Technological Change in Economic Models of Climate Change Policy ; 9.Modeling Biased Technical Change: Implications for Climate Policy ; Part 3: Sustainability ; 10. Confronting Consumption: Challenges for Economics and for Policy ; 11.Social and Psychological Drivers of Energy Consumption Behaviour and Energy Transitions ; 12.Management of North Sea Fisheries
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  • 24
    Call number: AWI A10-18-91567
    In: AIP conference proceedings, Vol. 1531
    Type of Medium: Monograph available for loan
    Pages: XXV, 970 S. , Ill., graph. Darst., Kt.
    ISBN: 9780735411555 , 9781629936963 (Print on Demand)
    Series Statement: AIP conference proceedings 1531
    Language: English
    Note: Table of Contents: Preface: Radiation Processes in the Atmosphere and Ocean / Robert F. Cahalan. - Acknowledgments. - PLENARY SESSION. - UNION-HISTORICAL PERSPECTIVES AND CURRENT TOPICS IN RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN / Conveners: R. F. Cahalan, W. Schmutz, B. J. Sohn, and J. Fischer. - 125 years of radiative transfer: Enduring triumphs and persisting misconceptions / Michael I. Mishchenko. - Active remote sensing of cloud microphysics / Hajime Okamoto. - MIPAS: 10 years of spectroscopic measurements for investigating atmospheric composition / Herbert Fischer. - Status of high spectral resolution IR for advancing atmospheric state characterization and climate trend benchmarking: A period of both opportunity realized and squandered / Henry Revercomb, Fred Best, Robert Knuteson, David Tobin, Joe Taylor, and Jon Gero. - Growing up MODIS: Towards a mature aerosol climate data record / Robert C. Levy. - Radiative transfer and regional climate change / Kuo-Nan Liou. - Ocean optics: The next frontier / George W. Kattawar. - PARALLEL SESSIONS. - RADIATIVE TRANSFER THEORY AND MODELING / Conveners: B. Mayer, A. Marshak, and J.-L. Widlowski. - Oral Presentations. - New approach for radiative transfer in sea ice and its application for sea ice satellite remote sensing / E. P. Zege, A. V. Malinka, I. L. Katsev, A. S. Prikhach, and G. Heygster. - The line-by-line and polarized Monte Carlo atmospheric radiative transfer model / B. A. Fomin and V. A. Falaleeva. - Hyperspectral retrieval of surface reflectances: A new scheme / Jean-Claude Thelen and Stephan Havemann. - Accelerations of the discrete ordinate method for nadir viewing geometries / Dmitry Efremenko, Adrian Doicu, Diego Loyola, and Thomas Trautmann. - The simulation of radar and coherent backscattering with the Monte Carlo model MYSTIC / Christian Pause, Robert Buras, Claudia Emde, and Bernhard Mayer. - The visibility of airborne volcanic ash from the flight deck of an aircraft - The effect of clouds in the field of view / Daniel Sauer, Josef Gasteiger, Claudia Emde, Robert Buras, Bernhard Mayer, and Bernadett Weinzierl. - Results of processing airborne NASA and Russian cloud data / Irina Melnikova, Jefwa M. Genya, and Charles K. Gatebe. - 3D radiative processes in satellite measurements of aerosol properties / Tamás Várnai, Alexander Marshak, Weidong Yang, and Guoyong Wen. - Assessment of cloud heterogeneities effects on brightness temperatures simulated with a 3D Monte Carlo code in the thermal infrared / Thomas Fauchez, Céline Cornet, Frédéric Szczap, and Philippe Dubuisson. - Parametric 3D atmospheric reconstruction in highly variable terrain with recycled Monte Carlo paths and an adapted Bayesian inference engine / Ian Langmore, Anthony B. Davis, Guillaume Bal, and Youssef M. Marzouk. - Remote sensing of particle size profiles from cloud sides: Observables and retrievals in a 3D environment / Florian Ewald, Tobias Zinner, and Bernhard Mayer. - Poster Presentations. - Characterization of cloud microphysical parameters using airborne measurements by the research scanning polarimeter / Mikhail D. Alexandrov, Brian Cairns, Michael I. Mishchenko, Andrew S. Ackerman, and Claudia Emde. - Solution of the radiative transfer equation by eliminating the anisotropic part within the method of synthetic iteration / Vladimir P. Budak and Oleg V. Shagalov. - The phase matrix truncation impact on polarized radiance / M. Compiègne, L. C-Labonnote, and P. Dubuisson. - Evaluation of cloud heterogeneity effects on total and polarized visible radiances as measured by POLDER/PARASOL and consequences for retrieved cloud properties / C. Cornet, F. Szczap, L. C.-Labonnote, T. Fauchez, F. Parol, F. Thieuleux, J. Riedi, P. Dubuisson, and N. Ferlay. - Retrieval of volcanic ash and ice cloud physical properties together with gas concentration from IASI measurements using the AVL model / S. Kochenova, M. De Mazière, N. Kumps, S. Vandenbussche, and T. Kerzenmacher. - Use of shadowband correction models for predicting direct solar irradiance / M. C. Kotti, A. A. Argiriou, and A. Kazantzidis. - Simulation of airborne radar observations of precipitating systems at various frequency bands / Valentin Louf, Olivier Pujol, and Jérôme Riedi. - Fast radiative transfer model to simulate spectroscopic measurements of outgoing IR radiances in cloudy conditions / Alexey Rublev and Anatoly Trotsenko. - Intercomparison of three microwave/infrared high resolution line-by-line radiative transfer codes / F. Schreier, S. Gimeno Garcia, M. Milz, A. Kottayil, M. Höpfner, T. von Clarmann, and G. Stiller. - Py4CAtS – Python tools for line-by-line modelling of infrared atmospheric radiative transfer / Franz Schreier and Sebastián Gimeno García. - Theory of weak spectral line formation within a plane-parallel atmosphere bounded from below by a reflecting underlying surface / Oleg I. Smokty. - Analytical spatial-angular structure of polarized radiation fields in a uniform atmospheric slab / Oleg I. Smokty. - The mirror symmetry principle for radiation fields in a vertically non-uniform atmospheric slab / Oleg I. Smokty. - A 3D polarized Monte Carlo LIDAR system simulator for studying effects of cirrus inhomogeneities on CALIOP/CALIPSO measurements / F. Szczap, C. Cornet, A. Alqassem, Y. Gour, L. C.-Labonnote, and O. Jourdan. - The significance analysis of FY-2E split window data for "clear region" AMVs derivation / Zhenhui Wang, Yizhe Zhan, Zhiguo Zhang, and Lu Yang. - PARTICLE RADIATIVE PROPERTIES / Conveners: T. Aoki, P. Di Girolamo, and H. Ishimoto. - Oral Presentations. - Retrieval of aerosol microstructure and radiative properties for moderate turbidity under conditions of Western Siberia / Tatiana B. Zhuravleva, Tatiana V. Bedareva, and Mikhail A. Sviridenkov. - Vertical resolved aerosol characterization during the GAMARF campaign: Aerosol size distribution and radiative properties / José Luis Gómez-Amo, Daniela Meloni, Alcide di Sarra, Tatiana DiIorio, Wolfgang Junkermann, Víctor Estellés, Giandomenico Pace, and Jeroni Lorente. - A novel, broadband spectroscopic method to measure the extinction coefficient of aerosols in the near-ultraviolet / Eoin M. Wilson, Jun Chen, Ravi M. Varma, John C. Wenger, and Dean S. Venables. - Aerosol characteristics at the Alpine site of Innsbruck, Austria / Sigrid Wuttke, Axel Kreuter, and Mario Blumthaler. - Comparison of modeled optical properties of Saharan mineral dust aerosols with SAMUM lidar and photometer observations / Josef Gasteiger and Matthias Wiegner. - A self-consistent high- and low-frequency scattering model for cirrus / Anthony J. Baran, Richard Cotton, Stephan Havemann, Laurent C.-Labonnote, and Franco Marenco. - Does scattered radiation undergo bluing within clouds? / I. Melnikova, T. Simakina, A. Vasilyev, C. Gatebe, and C. Varotsos. - Poster Presentations. - Numerical simulation of spectral albedos of glacier surfaces covered with glacial microbes in Northwestern Greenland / Teruo Aoki, Katsuyuki Kuchiki, Masashi Niwano, Sumito Matoba, Jun Uetake, Kazuhiko Masuda, and Hiroshi Ishimoto. - Development of a quality control algorithm for analysis of SKYNET data and an estimation of the single scattering albedo / Makiko Hashimoto and Teruyuki Nakajima. - Optical modeling of irregularly shaped ice particles in convective cirrus / Hiroshi Ishimoto, Kazuhiko Masuda, Yuzo Mano, Narihiro Orikasa, and Akihiro Uchiyama. - Optimizing the ice crystal scattering database for the GCOM-C/SGLI satellite mission / Husi Letu, Takashi Y. Nakajima, Takashi N. Matsui, and Yoshiaki Matsumae. - Synergetic retrieval of atmospheric aerosol from a combination of lidar and radiometer ground-based observations / Anton Lopatin, Oleg Dubovik, Anatoli Chaikovsky, Philippe Goloub, Didier Tanre, Pavel Litvinov, and Tatiana Lapyonok. - Satellite study over Europe to estimate the single scattering albedo and the aerosol opt
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  • 25
    Monograph available for loan
    Monograph available for loan
    Cheltenham [u.a.] : Elgar
    Call number: PIK N 071-16-90003
    Type of Medium: Monograph available for loan
    Pages: XIV, 189 S. , graph. Darst., Kt.
    ISBN: 1781955549 ((cased)) , 9781781955543 ((cased)) , 9781783478910 , 9781781955550 (electronic)
    Language: English
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  • 26
    Monograph available for loan
    Monograph available for loan
    Oxford : Oxford University Press
    Call number: PIK B 130-19-92108
    Type of Medium: Monograph available for loan
    Pages: xii, 704 Seiten , Illustrationen, Diagramme
    ISBN: 9780199959327
    Series Statement: Survey and synthesis series / Financial Management Association
    Language: English
    Note: Contents: Preface: Asset Management ; Part I: The Asset Owner ; Chapter 1: Asset Owners ; Chapter 2: Preferences ; Chapter 3: Mean-Variance Investing ; Chapter 4: Investing for the Long Run ; Chapter 5: Investing Over the Life Cycle ; Part II: Factor Risk Premiums ; Chapter 6: Factor Theory ; Chapter 7: Factors ; Chapter 8: Equities ; Chapter 9: Bonds ; Chapter 10: Alpha (and the Low Risk Anomaly) ; Chapter 11: "Real " Assets ; Chapter 12: Tax-Efficient Investing ; Chapter 13: Illiquid Assets ; Chapter 14: Factor Investing ; Part III: Delegated Portfolio Management ; Chapter 15: Delegated Investing ; Chapter 16: Mutual Funds and Other 40-Act Funds ; Chapter 17: Hedge Funds ; Chapter 18: Private Equity ; Afterword: Factor Management ; Appendix: Returns ; Acknowledgements ; Bibliography ; Index
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  • 27
    Call number: PIK B 060-19-92146
    Type of Medium: Monograph available for loan
    Pages: XVII, 401 Seiten , Diagramme, Karten , 24cm
    Edition: Fifth edition
    ISBN: 9780230355774 , 9780230355767
    Language: English
    Note: Contents: 1 Introduction ; 2 Theories of Migration ; 3 How Migration Transforms Societies ; 4 International Migration before 1945 ; 5 Migration in Europe since 1945 ; 6 Migration in the Americas ; 7 Migration in the Asia-Pacific Region ; 8 Migration in Africa and the Middle East ;9 Migration, Security and the Debate on Climate Change ; 10 The State and International Migration: The Quest for Control ; 11 Migrants and Minorities in the Labour Force ; 12 New Ethnic Minorities and Society ; 13 Immigrants and Politics ; 14 Conclusion: Migration in the Twenty-First Century
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  • 28
    Call number: ZSP-SCAR-570-2
    In: Report to SCAR on Antarctic research activities of Germany (FRG), 2
    Type of Medium: Series available for loan
    Pages: 16 Seiten
    ISSN: 0179-0072
    Series Statement: Report to SCAR on Antarctic research activities of Germany (FRG) 2
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research of the Federal Republic of Germany. - Introduction. - Station. - Antarctic Research Activities 1979-1980. - Planned Research Activities 1980-1981. - References.
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  • 29
    Monograph available for loan
    Monograph available for loan
    [Charleston, SC] : [Createspace]
    Call number: PIK M 031-19-92210
    Description / Table of Contents: This book explains the fundamentals of computational physics and describes the techniques that every physicist should know, such as finite difference methods, numerical quadrature, and the fast Fourier transform. The book offers a complete introduction to the topic at the undergraduate level, and is also suitable for the advanced student or researcher. The book begins with an introduction to Python, then moves on to a step-by-step description of the techniques of computational physics, with examples ranging from simple mechanics problems to complex calculations in quantum mechanics, electromagnetism, statistical mechanics, and more
    Type of Medium: Monograph available for loan
    Pages: xi, 549 Seiten , Illustrationen, Diagramme
    Edition: Revised and expanded
    ISBN: 1480145513 , 9781480145511
    Language: English
    Note: Contents: Introduction -- Python programming for physicists -- Graphics and visualization -- Accuracy and speed -- Integrals and derivatives -- Solution of linear and nonlinear equations -- Fourier transforms -- Ordinary differential equations -- Partial differential equations -- Random processes and Monte Carlo methods -- Using what you have learned -- Appendices -- Index..
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  • 30
    Monograph available for loan
    Monograph available for loan
    Basingstoke, England : Palgrave Macmillan
    Call number: PIK B 160-16-90200
    Description / Table of Contents: This updated and revised edition outlines strategies and models for how to use technology and knowledge to improve performance, create jobs and increase income. It shows what skills will be required to produce, sell and manage performance over time, and how manual jobs can contribute to reduce the consumption of non-renewable resources
    Type of Medium: Monograph available for loan
    Pages: XXIII, 349 Seiten , graph. Darst.
    Edition: 2nd edition
    ISBN: 0230584667 (hbk.) , 9781349369195 (pbk.) , 9780230584662 (hbk.)
    Language: English
    Note: Cover; Contents; List of Tables; List of Figures; Acknowledgements; List of Abbreviations/Glossary; Preface; Introduction; Chapter 1 Producing Performance; Chapter 2 Selling Performance; Chapter 3 Managing Performance Over Time; Chapter 4 Sustainability and the Performance Economy; Notes; References; Index.
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  • 31
    Call number: AWI G3-18-91873
    In: Eiszeitalter und Gegenwart, Volume 60, Number 2-3
    Type of Medium: Monograph available for loan
    Pages: Seiten 211 - 390 , Illustrationen
    Series Statement: Eiszeitalter und Gegenwart 60.2011,2/3
    Language: English
    Note: Table of Contents: Foreword / Margot Böse. - Depositional architecture and palaeogeographic significance of Middle Pleistocene glaciolacustrine ice marginal deposits in northwestern Germany: a synoptic overview / Jutta Winsemann, Christian Brandes, Ulrich Polom, Christian Weber. - Chronology of Weichselian main ice marginal positions in north-eastern Germany / Christopher Lüthgens, Margot Böse. - Deglaciation of a large piedmont lobe glacier in comparison with a small mountain glacier - new insight from surface exposure dating. Two studies from SE Germany / Anne U. Reuther, Markus Fiebig, Suan Ivy-Ochs, Peter W. Kubik, Jürgen M. Reitner, Hermann Herz, Klaus Heine. - Casting new light on the chronology of the loess/paleosol sequences in Lower Austria / Birgit Terharst, Christine Thiel, Robert Peticzka, Tobias Sprafke, Manfred Frechen, Florian A. Fladerer, Reinhard Roetzel, Christine Neugebauer-Maresch. - Editorial / Markus Fiebig. - Quaternary glaciation history of northern Switzerland / Frank Preusser, Hans Rudolf Graf, Oskar Keller, Edgar Krayss, Christian Schlüchter. - The Quaternary of the southwest German Alpine Foreland (Bodensee-Oberschwaben, Baden-Württemberg, Southwest Germany) / Dietrich Ellwanger, Ulrike Wielandt-Schuster, Matthias Franz, Theo Simon. - Quaternary Stratigraphy of Southern Bavaria / Gerhard Doppler, Ernst Kroemer, Konrad Rögner, Johannes Wallner, Hermann Jerz, Walter Grottenthaler. - An outline of the quaternary stratigraphy of Austria / Dirk van Husen, Jürgen M. Reitner. , Zusammenfassung in deutscher Sprache
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  • 32
    Monograph available for loan
    Monograph available for loan
    New Haven : Yale University Press
    Call number: PIK N 311-19-92860
    Description / Table of Contents: "Today we know what no previous generation knew: the history of the universe and of the unfolding of life on Earth. Through the astonishing combined achievements of natural scientists worldwide, we now have a detailed account of how galaxies and stars, planets and living organisms, human beings and human consciousness came to be. And yet . . . we thirst for answers to questions that have haunted humanity from the very beginning. What is our place in the 14-billion-year history of the universe? What roles do we play in Earth's history? How do we connect with the intricate web of life on Earth? In Journey of the Universe Brian Thomas Swimme and Mary Evelyn Tucker tell the epic story of the universe from an inspired new perspective, weaving the findings of modern science together with enduring wisdom found in the humanistic traditions of the West, China, India, and indigenous peoples. The authors explore cosmic evolution as a profoundly wondrous process based on creativity, connection, and interdependence, and they envision an unprecedented opportunity for the world's people to address the daunting ecological and social challenges of our times. Journey of the Universe transforms how we understand our origins and envision our future. Though a little book, it tells a big story one that inspires hope for a way in which Earth and its human civilizations could flourish together. This book is part of a larger project that includes a documentary film, an educational DVD series, and a website. The film and the DVD series will be released in 2011. For more information, please consult the website, journeyoftheuniverse.org"--
    Type of Medium: Monograph available for loan
    Pages: XI, 175 Seiten , 21 cm
    ISBN: 9780300171907 (hardback) , 9780300209433 (paperback)
    Language: English
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  • 33
    Call number: PIK W 511-19-92914
    Type of Medium: Monograph available for loan
    Pages: 174 Seiten , Illustrationen, Diagramme
    ISBN: 9789525453799
    Series Statement: What science can tell us 1
    Language: English
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  • 34
    Monograph available for loan
    Monograph available for loan
    Joensuu : European Forest Institute
    Call number: PIK W 511-19-92916
    Description / Table of Contents: Literaturangaben
    Type of Medium: Monograph available for loan
    Pages: 100 Seiten , Diagramme, Karten
    ISBN: 9789525980028
    Series Statement: What science can tell us 2
    Language: English
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  • 35
    Monograph available for loan
    Monograph available for loan
    [Joensuu] : European Forest Institute
    Call number: PIK W 511-19-92917
    Type of Medium: Monograph available for loan
    Pages: 129 Seiten , Illustrationen, Diagramme, Karten
    ISBN: 9789525980080
    Series Statement: What science can tell us 3
    Language: English
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  • 36
    Monograph available for loan
    Monograph available for loan
    [Erscheinungsort nicht ermittelbar] : Department of Science and Technology, Antarctic Division Australia
    Associated volumes
    Call number: AWI P2-86-0256
    In: Antarctic Telecommunications Guidance Manual, Volume 1
    Type of Medium: Monograph available for loan
    Pages: Diverse Seitenangaben (ca. 50 Seiten)
    Language: English
    Note: TABLE OF CONTENTS: Distribution List. - List of acronyms and abbreviations used. - Record of Amendments. - Foreword to 1st Edition. - Foreword to 2nd Edition. - HISTORY AND DEVELOPMENTS OF ANTARCTIC COMMUNICATIONS. - CONSIDERATION OF TELECOMMUNICATIONS BY SCAR AND ANTARCTIC TREATY CONSULTATIVE PARTIES. - OPERATION OF INDIVIDUAL NATIONS' NETWORKS. - Australia's Antarctic Communications. - Japan's Antarctic communications. - UK Antarctic communications. - US Antarctic communications. - ANTARCTIC TREATY RESOLUTIONS ON ANTARCTIC COMMUNICATIONS. - WMO RESOLUTIONS AND PRINCIPLES ON ANTARCTIC COMMUNICATIONS. - Introduction. - Engineering principles of the GTS. - Functions and responsibilities of Meteorological Telecommunications Centres. - Characteristics of the networks of the GTS. - Operational principles of the GTS. - The transmission of meteorological data an the GTS. - Collection and transmission of meteorological data. - Data processing. - Telecommunications system. - Weather reporting by traverse parties. - Automatic weather station in the Antarctic. - AIREP reports. - Mobile ship stations. - OTHER RELEVANT RECOMMENDATIONS AND RESOLUTIONS. - APPENDIXES. - APPENDIX I. - Manual an the Global Data Processing System, Regional Aspects, the Antarctic. - APPENDIX II. - Network of CLIMAT and CLIMAT TEMP reporting stations in the Antarctic. - APPENDIX III. - Results of the monitoring of Antarctic data reception carried out during the period 12-15 March 1982. - APPENDIX IV. - Existing links for the daily international exchange of meteorological data within the Antarctic. - APPENDIX V. - Principal routes by which Antarctic meteorological data enters the GTS. - APPENDIX VI. - List of Antarctic stations and the routing of their meteorological data to the GTS.
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  • 37
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/19
    In: CRREL Report, 84-19
    Description / Table of Contents: In this study a method for making long-range forecasts of freeze-up dates in rivers is developed. The method requires the initial water temperature at an upstream station, the long-range air temperature forecast, the predicted mean flow velocity in the river reach, and water temperature response parameters. The water temperature response parameters can be either estimated from the surface heat exchange coefficient and the average flow depth or determined empirically from recorded air and water temperature data. The method is applied to the St. Lawrence River between Kingston, Ontario, and Massena, New York, and is shown to be capable of accurately forecasting freeze-up. Originator-supplied keywords include: Ice formation, and River ice.
    Type of Medium: Series available for loan
    Pages: iii, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 84-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Problem formulation Analytical treatment Application to the upper St. Lawrence River Summary Literature cited Appendix A: Basic program for St. Lawrence River freeze-up forecast
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  • 38
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/24
    In: CRREL Report, 84-24
    Description / Table of Contents: This report describes the growth characteristics and crystalline textures of urea ice sheets which are now used extensively in the Cold Regions Research and Engineering Lab. (CRREL) test basin for modeling sea ice. The aims of the report are to describe the different kinds of crystalline texture encountered in urea ice sheets and to show that even small variations in texture can drastically influence the mechanical behavior of urea ice sheets. Standard petrographic techniques for studying microstructure in thin sections were used on 24 urea ice sheets. These investigations entailed observations of the crystalline texture of the ice (including details of the subgrain structure), grain size measurements, and studies of the nature and extent of urea entrapment and drainage patterns in the ice. Increased knowledge of the factors controlling the crystalline characteristics of urea ice sheets has progressed to the point where test basin researchers at CRREL are now able to fabricate ice sheets with prescribed structures leading to predictable mechanical properties. Originators supplied keywords include: Sea ice, and Mechanical properties.
    Type of Medium: Series available for loan
    Pages: iv, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 84-24
    Language: English
    Note: Contents: Abstract Preface Introduction Objectives Analytical techniques Procedures for growing urea ice sheets Analysis of the crystalline structure of urea ice Characteristics of urea ice Results and discussion Ice sheet no. 1 Ice sheet no. 2 Ice sheet no. 3 Ice sheet no. 4 Ice sheet no. 5 Ice sheet no. 6 Ice sheet no. 7 Ice sheet no. 8 Ice sheet no. 9 Ice sheet no. 10 Ice sheet no. 11 Ice sheet no. 12 Ice sheet no. 13 Ice sheet no. 14 Ice sheet no. 15 Ice sheet no. 16 Ice sheet no. 17 Ice sheet no. 18 Ice sheet no. 19 Ice sheet no. 20 Ice sheet no. 21 Ice sheet no. 22 Ice sheet no. 23 Ice sheet no. 24 Urea concentrations in test tank solution and ice Discussion and conclusions E/σf ratio Thickness of incubation layer Crystal properties Literature cited Appendix A: Thin sections of urea ice sheets
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  • 39
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/11
    In: CRREL Report, 84-11
    Description / Table of Contents: Data obtained from two sets of data buoys either air-dropped or deployed by ship onto the Weddell Sea pack ice during the period from Dec 1978 to Nov 1980 are presented. The buoy data include position, pressure and temperature information and to date represent the most complete combined weather and pack ice drift records for the ice-covered Southern Ocean regions. The buoys tended to drift north initially and then to turn east generally between latitudes 62°S and 64°S. Buoy 1433 turned east farther south at approximately 67°S but at about the same time as buoy 0527, implying that the westerly wind belt was farther south than usual in 1979. The range of air pressures-from about 950 mb to about 1020 mb is typical of the circumpolar low pressure trough in the Southern Hemisphere. All buoys were equipped with an internal or compartment temperature sensor. The 1980 buoys also contained an external air temperature sensor in a ventilated, shielded can at 1-m height. Although differences of 10°C or more between recorded air and compartment temperatures are common, the correlation between the two measured temperatures is generally very good. The compartment temperatures are higher probably because the buoy is radiationally heated. We found that subtracting 3°C from the average daily compartment temperature yielded a good estimate of the average air temperature for any given day. This technique can be used to construct average daily air temperature records for the 1979 buoys which only contained the internal or compartment temperature sensor.
    Type of Medium: Series available for loan
    Pages: v, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 84-11
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods and instrumentation Results Drift tracks Pressure data Temperature data Discussion Conclusions Literature cited
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  • 40
    Call number: ZSP-201-84/9
    In: CRREL Report, 84-9
    Description / Table of Contents: This report presents the results of the first phase of a test program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. In Phase I, 222 constant-strain-rate uni-axial compression tests were performed on ice samples from ten multi-year pressure ridges to examine the magnitude and variation of ice strength within and between pressure ridges. A limited number of constant-strain-rate compression and tension tests, constant-load compression tests, and conventional triaxial tests were also performed on ice samples from a multi-year floe to provide preliminary data for developing ice yield criteria and constitutive laws for multi-year sea ice. Data are presented on the strength, failure strain, and modulus of multi-year sea ice under different loading conditions. The statistical variation of ice strength within and between pressure ridges is examined, as well as the effects of ice temperature, porosity, structure, strain rate and confining pressure on the mechanical properties of multi-year sea ice.
    Type of Medium: Series available for loan
    Pages: v, 107 Seiten , Illustrationen
    Series Statement: CRREL Report 84-9
    Language: English
    Note: CONTENTS Abstract Preface Introduction Field Sampling Site selection and description Ice sampling procedures Shipping and storage of ice samples Testing Techniques Multi-year Pressure Ridge Tests Ice description Sampling scheme and test variables Uniaxial compressive strength Residual compressive strength Failure strains Initial tangent modulus Statistical Variations in Ice Strength Differences in strength above and below level ice Sources of the variation in strength Shape of the strength histograms Multi-year Floe Ice Tests Ice description Uniaxial compressive strength Constant-load compression tests Constant-strain-rate tension tests Triaxial tests Conclusions Literature Cited Appendix A: Structural profile of a multi-year pressure ridge core Appendix B: Ridge uniaxial compression test data Appendix C: Structural profile of the continuous multi-year floe core Appendix D: Multi-year floe test data
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  • 41
    Call number: ZSP-980-70
    In: 2nd Working Meeting "Radioisotope Application and Radiation Processing in Industry", Part 2, 50 to 97
    In: ZfI-Mitteilungen, Nr. 70
    Type of Medium: Series available for loan
    Pages: 355 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 70
    Language: English
    Note: Contents of Part 2 Hecht, K. Gerber, R. Otto: Studies on the drying of paints by means of 14C-labelled compounds K. Wagner, F. Brutschin, I. Ritter, T. Gritsch, H. Zimmermann, H. Borchert: Investigations by the aid of radioisotope methods on the technology of the production of carbon and silicon carbide materials K. Gloe, P. Mühl: Determination of metal extraction process parameters using tracer technique W. Migdał, W. Łada, K. Malec-Czechowska: Studies on liquid-liquid extraction of noble metals using radiotracers L. Petryka, K. Przewłocki: Radiotracer investigations of benefication copper ore in the industrial flotation process Z. Bazaniak, J. Palige: Determination of Cu recovery degree from slags in shaft process by means of radiotracers R. Burek, J .K. Zurawicz: On the optimization of concentration measurements in heterogeneous materials based on β-backscatter measurements B. Heinrich: Analysis of carbon content in crude brown coal by inelastic scattering of neutrons and the method of time correlated associated particles P. Urbańaki, D. Wagner, M. Jankowska, E. Kowalska: Determination of calcium and iron and measurements of ash content in the brown coal H.-W. Thümmel: Some considerations relating to the prediction of the efficiency of radiometric methods for the continuous ash content determination of coal L. Wawrzonek: Monitor of ash content of coal with X-ray source I. Pavlicsek, V. Stenger, A. Veres: Apparatus for gamma activation analysis I. Végvári, I. Juhász: Determination of PbO content of lead-glass samples on the ground of gamma-absorption E. Schöntube, H.-J. Große: Aerosol ionization gas analysis as a monitoring for waste halothane in the atmosphere of operating theatre S. Mothes, P. Popp, G. Oppermann, W.-D. Herberg: Measurement of fluorocarbons with the ECD P. Popp, E. Schöntube, G. Oppermann: The usability of radiation ionization detectors for the determination of N2O concentrations in the air of operating theatres P. Popp, G. Arnold, G. Oppermann: A hydrocarbon-sensitized argon ionization detector for the detection of inorganic compounds R. Szepke, W. Lisieski, J. Harasimczuk: Automatic dust monitor AMIZ G. Vormum: Sealed sources - problems of design, measurement and quality control L. Gąsiorowski: New trends in developments of ratioisotope gauges in Poland G. Brunner: Direct chemical information from special radio tracers as well as from outer X-ray excitation J. Hirling: Experience and future trend in industrial application of nuclear methods in Hungary I. N. Ivanov, O. K. Nikolaenko, Yu. V. Phecktistov, V. L. Chulkin: Use of short-lived nuclides in activation analysis Kl.-P. Rudolph, J. Flachowsky, A. Lange: Trace element determination in semiconducter selenium by neutron activation analysis (NAA) W. Lisieski, J. Mirowicz: Some industrial applications of instruments with neutron sources R. Dybczyński, H. Maleszewaka, S. Sterliński, Z. Szopa, M. Wasek: Some problems in neutron activation determination of gold and silver in ores and concentrates of copper industry L. Jankowski: Cost-benefit aspects of radioisotope application in industry B. Manouchev, T. Boschkova, L. Tsankov, V. Gurev, I. Kojucharov, G. Grozev: On the possibilities of the direct gamma-spectremetry in natural waters P. Morgenstern, D. Müller, W. Riedel: A parallel grid proportional scintillation counter for the X-ray region from 3 to 20 keV with regard to high count rates N. A. Anders, V. S. Isaev, V. I. Filatov, B. E. Kolesnikov, D. Müller, P. Morgenstern, W. Riedel, V. P. Varvaritsa: X-ray fluroescence analyzer of light elements with proportional scintillation counter D. Müller, P. Morgenstern, W. Riedel, W. Warwariza, B. E. Kolesnikow, N. A. Anders, W. J. Filatov: General considerations concerning the use of the X-ray analyzer "RALE" in industry
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  • 42
    Monograph available for loan
    Monograph available for loan
    Princeton [u.a.] : Princeton Univ. Press
    Call number: PIK N 910-17-91019
    Type of Medium: Monograph available for loan
    Pages: XXVIII, 578 Seiten , Illustrationen
    ISBN: 9780691138176 (hardcover)
    Language: English
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  • 43
    Call number: AWI G3-17-91084-2
    In: Kvarter vo vsem ego mnogoobrazii, Tom 2
    Type of Medium: Monograph available for loan
    Pages: 350 S. , Ill., graph. Darst., Kt.
    ISBN: 978-5-91918-124-8
    Language: Russian , English
    Note: TABLE OF CONTENTS: Contemporary hydrographic network of the North-East of the Russian Plain: chronology of development / A. S. Lavrov, L. M. Potapenko. - Some distinctions of big and smoll interglacials (by way of example of Western Siberia during Late Pleistocene) / S. A. Laukhin, A. M. Firsov. - Pollen spectra in the lithological facies of lake bottom sediment on the White Sea Coast / N. B. Lavrova, V. V. Kolka, O. P. Korsakova. - Barsova Gora is the unical object of glacial geology and Taiga vegetation in the middle Priobie / N. B. Levina, V. A. Tkachenko, V. N. Turin, N. N. Lavrovich, E. V. Shepetova. - Geological role of ice in formation of the Arctic Ocean recent and quaternary sediments composition / M. A. Levitan, K. V. Syromyatnikov. - Granite protrusions as a relief-forming factor of the activated sections of platforms and mobile belts / M. G. Leonov, E. S. Przhiyalgovsky. - Glacial tectonics and the granulated substance mechanics / M. G. Leonov, O. G. Epshtein. - Late Pliocene-Early Pleistocene lake sediments in hollow D'Issyk-kul / O. N. Leflat, T. N. Voskresenskaya. - Complexity and diversity of genetic indication of loose formations and new things in the methods of their identification (according to the results of research of small rivers' valleys of the North of Amur-Zeya Plain, Lower Amur Region and Western Priokhotye / E. Yu. Likutov. - Landscape-geological characteristic of travertine cascade of the ancient thermal source of tract pymvashor / A. A. Ljubas, J. N. Bolotov, M. Y. Gofarov, S. A. lglovskiy. - Lake's lithogenesis: new formations are on the bottom of the drying up Udinsky Streach / L. A. Magaeva, M. T. Ustinov. - Genetic classification of peat deposits based on trophicity degree / G. L. Makarenko. - On the issue of classification of mires based on trophicity degree / G. L. Makarenko. - Some burning issues of a structural interpretation of the plain areas relief / V. I. Makarov, N. V. Makarova, T. V. Sukhanova. - The first experience of the 230Th/U dating of buried wood remains / R. E. Maksimov, V. Yu. Kuznetsov, S. A. Laukhin, I. E. Zherebtsov, S. B. Levchenko, N. G. Baranova. - Variations of the relative intensity of geomagnetic field in bottom sediments of the Bering Sea and North-Western Pacific during the last 380 kyr / M. I. Malakhov, S. A. Gorbarenko, D. Nurnberg, R. Tiedemann, G. Yu. Malakhova, J. Riethdorf. - Using high-resolution records petromagnetic and lithophysic characteristics of the sediments Bering Sea and high-latitude Western Pacific for reconstruction of climate and environment in the Late Pleistocene-Holocene / M. I. Malakhov, S. A. Gorbarenko, D. Nurnberg, R. Tiedemann, G. Yu. Malakhova, J. Riethdorf. - Some information about genetic classification of lakes of the Vepsovsky Hill East of the Leningrad Region / O. V. Malozemova, L. A. Nesterova, D. A. Subetto. - Middle Pleistocene small mammal faunas of Eastern and Central Europe: Chronology, correlation / A. K. Markova, T. van Kolfschoten. - Astronomical and meteorological criteria of defining human activity traces in ancient megalith rock complexes in the North-West Russia / L. S. Marsadolov, G. N. Paranina. - Palynological characteristics of the middle Pleistocene deposits in the Vychegda River Basin, the Komi Republic (preliminary data) / T. I. Marchenko-Vagapova. - Isotope specialization (δ18O, δ13C) of quaternary carbonates from Belarus and potential of palaeoenvironments indication / N. A. Makhnach. - The complex survey of quaternary deposits / A. V. Mashukov, A. E. Mashukova. - Quaternary deposits and construction materials' deposits in the Kaluga Region / S. G. Medvedeva. - Vegetation and climate of Sakhalin in the early Holocene / Yu. A. Mikishin, L. G. Gvozdeva. - Inorganic geochemistry record of stages 6-11 from Elgygytgyn lake sediments (deep drilling data) / P. S. Minyuk, V. Ya. Borkhodoev and Elgygytgyn Scientific Party. - Palaeoshorelines on the Murmansk coast / M. V. Mityaev. - Vertical matter flow in Gulfs on Murmansk and Karelian coasts / M. V. Mityaev, M. V. Gerasimova. - Channel and basin components of sediment yield in the formation of quaternary alluvial suites of rivers of the middle Volga Region / V. V. Mozzherin. - Late Pleistocene interglacial-glacial climatic transition (MIS 5/MIS 4) as derived from palynological analysis and IR-OSL dating of deposits from the Voka Reference Section, Southeastern coast of the Gulf of Finland / A. N. Molodkov, N. S. Bolikhovskaya. - Quaternary sediments in the Central Part of Northern West Siberia / D. V. Nazarov. - Palynological evidences of the postglacial warm event of the Laptev Sea Region / O. D. Naidina. - Some problems of using luminescent methods for absolute dating of glacial deposits (by the example of Chagan Section, SE Altai) / R. K. Nepop, A. R. Agatova, H. Rodnight. - Freshwater travertine-like carbonates of the Izhora Plateau as the natural markers of the structural dislocations / M. U. Nikitin, A. A. Medvedeva. - Fold deformations in late Pleistocene deposits of the Central Part Kola Region and their genesis / S. B. Nikolaeva. - Mammoths and man of stone age in Northern Europe - insight of a question on migrations to European Subarctic by Western paths / A. A. Nikonov. - Formation of present-day deposits in the conditions of technogenic litogenesis / E. N. Ogorodnikova, S. K. Nikolaeva. - Traces cryogenesis of Neopleistocene sediments the lower Irtysh / O. L. Opokina, E. A. Slagoda. - Stratigraphical subdivision of the Eopleistocene deposits of the Simbugino Site and new mollusc finds (Southern Foreurals) / E. M. Osipova, G. A. Danukalova. - Late Pleistocene to Holocene environment and climate in the Upper Ponoy Depression (Kola Peninsula) reconstracted from pollen record of Churozero lake bottom deposits / E. Yu. Pavlova, M. V. Dorozhkina, E. I. Devyatova. - Absolute chronology and climatic conditions of Valdai (Vistulian) terraces formation in the middle Seim River Valley / A. Panin, J.-P. Buylaert, E. Matlakhova, A. Murray, O. Pakholova. - Possibility of reconstruction of climate change in the Mongolian Altai based on analysis of annual records in glaciers and lacustrine sediment / T. S. Papma, E. Yu. Mitrofanova, N. S. Malygina. - Northern labyrinth - thee Gnomon: compass, clock, calendar / G. N. Paranina. - Late Pleistocene and Holocene paleogeography of the coastal lowlands of Is. Paramushir (Kuril Islands) / A. Ju. Pakhomov. - Upper-Kama (Verhnekama) Upland - the newest lifting of the middle Last Pleistocene / M. M. Pakhomov, I. L. Borodatyi. - Dating mass accumulations of Mammoth across Arctic Eurasia / V. V. Pitulko, P. A. Nikolskiy, A. E. Basilyan, E. Y. Pavlova. - Features of vertical distribution of the materials within the marginal zones of permafrost polygonal structures and its importance for dating of quaternary deposits in cryolitozone / V. V. Pitulko, E. Y. Pavlova, A. E. Basilyan, S. G. Kritsuk. - Morfogenesis of the tectonics active area of the Mongolian Altay / S. G. Platonova. - Reference section of the Lichvin interglacial in the North-Western Part of European Russia's Region / E. S. Pleshivtseva, V. L. Garkusha, M. A. Travina. - New radiocarbon dates of Late Quaternary Mammals in the Arkhangelsk Region in connection with reconstructions of the last glaciation in the Eastern Europe / D. V. Ponomarev, T. van Kolfschoten, A. K. Markova, J. van der Plicht. - Geological illustrations of Aral-Caspian Region's latest seismodynamic high activity / V. I. Popkov. - About Karagiinsk closed depression (Mangishlak)'s genesis / V. I. Popkov. - On the issue of formation of the Caucasian mineral waters' modern structural geomorphologic aspect / V. I. Popkov, I. G. Sazonov, D. A. Kolleganova. - Natural climate changes on the border of Late Pleistocene and Holocene / A. N. Popova, D. A. Subetto. - Some problems paleogeomorfologi Volga Region / I. V. Proletkin. - New perspectives on modern geomorphological studies / I. V. Proletkin. - Dynamics of small mammals local assem , In kyrill. Schr. , In engl. und rus. Sprache
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  • 44
    Monograph available for loan
    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-93042-2
    In: Interregional Training Course on Radiochemistry, [Supplement]
    Type of Medium: Monograph available for loan
    Pages: 88 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 2.2 The relative measurement of aktivity Lectures 1.3 Statistics / H. Baumbach 2.2 Sealed sources / K. Vormum 2.4 Energy dispersive x-ray fluorescence analysis / H.-K. Bothe 3.1 The use of carriers / H. Koch 4.3 Autoradiography / K. Freyer 6.1 Radiometric methods in environmental control / H.-J. Große
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  • 45
    Monograph available for loan
    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-93042-1
    In: Interregional Training Course on Radiochemistry, [Hauptband]
    Type of Medium: Monograph available for loan
    Pages: 248 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 1.1 Beta measurements 1.2 Measurement of the energy spectrum and range of α-radiation with semiconductor detectors 1.3 Error and statistical tests 1.4 Basic experiments of gamma spectroscopy 2.1 Determination of certain elements in sedimental atmospheric dust by x-ray fluorescence analysis 2.2 Calibration and efficiencies (see Supplement) 2.3 Thin-layer chromatographic separation and test of the purity of labelled compounds 2.4 Separation of Thorium-234 from Uranium-238 2.5 Separation of 137Ca/137mBa by precipitation and sorption 3.1 Determination of phosphate by simple isotope dilution analysis and determination of Zn in MgSO4 by substoichiometric isotope dilution analysis 3.2 The Szilard-Chalmers effect 3.3 Determination of the Ag content in slags by instrumental neutron activation analysis 4.1 Isotope exchange of Ethyl Iodide and Sodium Iodide 4.2 Liquid scintillation counting of Carbon-14 and Tritium 4.3 Autoradiography - Demonstration of Autoradiographic techniques Lectures 1.1 Fundamentals of radioactivity / G. K. Vormum 1.2 Interaction of nuclear radiation with matter / G. K. Vormum 1.4 Equations of radioactive decay / G. K. Vormum 1.5 Radiation detectors / M. Geisler 2.1 Radiation spectroscopy / M. Geisler 2.5 Handling of radioisotopes / G. K. Vormum 2.7 Behaviour of radionuclides in very low concentrations / H. Koch 3.6 Particle sources / J. W. Leonhardt 4.2 Tracers in chemical kinetics / J. Dermietzel 4.4 Liquid Scintillation Counting (LSC) / R. Trettin 5.1 Isotopic tracers in biology / H. Hübner 5.2 Low-level counting / R. Trettin 5.4 Basic concepts of radioimmunoassay (RIA) / G. K. Vormum 6.2 Radionuclide generators / R. Otto
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  • 46
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/2
    In: CRREL Report, 80-2
    Description / Table of Contents: Winter thermal structure and ice conditions in the land-fast ice cover of Lake Champlain were studied in detail for the winters of 1975-76 and 1976-77. The lake was instrumented to a depth of 8.5 m with a string of highly calibrated thermistors attached to an ice mooring system and connected to a data logger at Shelburne Point, Vermont, during the winter of 1975-76 and at Gordon Landing on Grand Isle, Vermont, during 1976-77. This data logger automatically recorded water temperatures from the surface of the lake though snow, ice and water vertical profiles to the bottom of the lake every four hours. Pertinent meteorological parameters are presented for the appropriate measurement sites during the two winter periods, November '75-April '76, and November '76-April '77. Computations were made of freezing degree days (C) for both winters and correlated with ice formation dates. Predictions of ice growth, using the Stefan equation with an empirical coefficient, were correlated with actual ice growth. Documentation was made of the Lake Champlain Transportation Company's first attempt at wintertime navigation by ferry from Gordon Landing, Vermont, to Cumberland Head, New York, in a land fast ice cover during one of the coldest winters of this century.
    Type of Medium: Series available for loan
    Pages: iv, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 80-2
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Climate Site preparation and data collection Instrumentation, measurements and calibration Relocation of measurement site, Fall 1976 Visual observations, ice conditions, and pertinent photography Analysis Air temperature comparisons Degree days of freezing Prediction of ice growth Water and ice temperature Wind Solar radiation Grand Isle ferry operations 1976-77 Conclusions Recommendations Literature cited Appendix A. General observations of ice conditions on Lake Champlain
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  • 47
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/26
    In: CRREL Report, 80-26
    Description / Table of Contents: A vital concern to the survivability of hardened underground structures in rock is the relative displacement induced along geologic discontinuities by nearby explosions. Such displacement, commonly termed block motion, can occur along faults, joints, bedding planes and other structural weaknesses in rock. This report documents all occurrences of block motion observed during the development of DIHEST, a series of shallow-buried high explosive experiments designed to simulate the direct induced ground motions from a nuclear surface burst. Instances of block motion are described, along with pertinent details of the explosive arrays, geology and ground motion fields. The influence of these and other factors on the direction and magnitude of block motion is discussed.
    Type of Medium: Series available for loan
    Pages: vi, 62 Seiten , Illustrationen
    Series Statement: CRREL Report 80-26
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors Introduction STARMET Test description Test results PLANEWAVE II Test description Test results DATEX II Test description Test results HANDEC II Test description Test results ROCKTEST II Test description Test results Summary and discussion Literature cited
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  • 48
    Call number: ZSP-201-80/20
    In: CRREL Report, 80-20
    Description / Table of Contents: Results of impulse radar studies of sea ice give support to the concept of a sea ice model in which the ice bottom is composed of an array of lossy parallel plate waveguides. The fundametal relation between the average bulk brine volume of sea ice and its electrical and strength properties is discussed as is the remote detection of under-ice current alignment. It was found that 1) the average effective bulk dielectric constant is dependent upon the average bulk brine volume of the sea ice; 2) sea ice anisotropy, arising from a bottom structure of crystal platelets with a preferred c-axis horizontal alignment, can be detected by radio echo sounding measurements made not only on the ice surface but also from an airborne platform; 3) the effective coefficient of reflection from the seaiIce bottom decreases with increasing average effective bulk dielectric constant of the ice, decreases with increasing bulk brine volume, and is typically one to two orders of magnitude lower dhan the coefficient of reflection from the ice surface; and 4) the losses In sea ice increase with increasing average bulk brine volume.
    Type of Medium: Series available for loan
    Pages: v, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 80-24
    Language: English
    Note: CONTENTS Abstract Preface Introduction Field program Results and discussion Conclusions Literature cited Appendix: Data analysis procedures
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  • 49
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/23
    In: CRREL Report, 80-23
    Description / Table of Contents: The contribution of brine layers to observed reflective anisotropy of sea ice at 100 MHz is quantitatively assessed. The sea ice is considered to be a stratified, inhomogeneous, anisotropic dielectric consisting of pure ice containing ordered arrays of conducting inclusions (brine layers). Below the transition zone, the ice is assumed to have constant azimuthal c-axis orientation within the horizontal plane, so that the orientation of brine layers is uniform. The brine layers are also assumed to become increasingly well-defined with depth, since adjacent brine inclusions tend to fuse together with increasing temperature. A theoretical explanation for observed reflective anisotropy is proposed in terms of an isotropic electric flux penetration into the brine layers. Penetration anisotropy and brine layer geometry are linked to anisotropy in the complex dielectric constant of sea ice. In order to illustrate the above effects we present a numerical method of approximating the reflected power of a plane wave pulse incident on a slab of sea ice. Mixture dielectric constants are calculated for two polarizations of the incident wave: 1) the electric field parallel to the c-axis direction, and 2) the electric field perpendicular to the c-axis direction. These dielectric constants are then used to calculate power reflection coefficients for the two polarizations. Significant bottom reflection (R ~ 0.08) occurs when the polariza-tion is parallel to the c-axis. However, when the polarization is perpendicular to the c-axis, the return may be almost completely extinguished (R 〈 0.001). This extinction is due primarily to absorptive loss associated with the conduct-ing inclusions and secondarily to an impedance match at the ice/water interface that results in transmission of the wave to the water without reflection.
    Type of Medium: Series available for loan
    Pages: vi, 15 Seiten , Illustrationen
    Series Statement: CRREL Report 80-23
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Anisotropy and sea ice macrostructure Anisotropy and sea ice microstructure A theory of anisotropic radar return from sea ice Anisotropic electric flux penetration into brine layers Implications of normal exclusion, tangential penetration, and brine layer geometry for dielectric behavior of sea ice Modeling of electromagnetic reflection from a stratified, anisotropic, inhomogeneous lossy medium Calculation of mixture complex dielectric constants Calculation of interfacial power reflection coefficients Calculation of bulk power reflection coefficients Calculation of attenuated power reflection coefficients Beam spread Results Anisotropic bottom reflections Anisotropic complex dielectric constants Sensitivity of parameters Internal reflection: the bumps Discussion Conclusions Literature cited
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  • 50
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/18
    In: CRREL Report, 80-18
    Description / Table of Contents: The use of ice as a structural material is common practice for certain applications in cold regions. Techniques such as surface flooding or water spraying are used to accelerate ice growth rates, thereby lengthening the winter construction season. This report examines the heat and mass transfer rates from freely falling water drops in cold air. Design equations which predict the amount of supercooling of the drops as a function of outdoor ambient temperature, drop size and distance of fall are given
    Type of Medium: Series available for loan
    Pages: v, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 80-18
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Velocity problem Heat and mass transfer problem - A single drop Heat and mass transfer - A system of drops Literature cited Appendix A: FORTRAN IV program to calculate final drop temperature, air temperatureand humidity
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  • 51
    Call number: ZSP-201-80/19
    In: CRREL Report, 80-19
    Description / Table of Contents: During the period 1975-1978 the Federal Highway Administration sponsored a series of environmental engineering in­vestigations along the Yukon River to Prudhoe Bay Haul Road. In 1976 the Department of Energy joined these in­vestigations with a series of ecological projects which continue to the present. Both agencies research efforts were con­ducted on a cooperative basis with CRREL’s in-house research program. The objectives of the research focused on 1) an evaluation of the performance of the road, 2) an assessment of changes in the environment associated with the road, 3) documentation of flora and vegetation along the 577-km-long transect, 4) methodologies for revegetation and restoration, and 5) an assessment of biological parameters as indicators of environmental integrity. In support of these objectives, specific studies were undertaken that investigated the climate along the road, thaw and subsidence beneath and adjacent to the road, drainage and side slope performance, distribution and properties of road dust, vegetation distribution, vegetation disturbance and recovery, occurrence of weeds and weedy species, erosion and its control, revegetation and restoration, and construction of the fuel gas line. This report presents background, information on the region, detailed results of the road thaw subsidence and dust investigations, and summaries of revegetation, fuel gas line, vegetation distribution, soil, and weed studies.
    Type of Medium: Series available for loan
    Pages: xv, 187 Seiten , Illustrationen
    Series Statement: CRREL Report 80-19
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Chapter 1. The road and its environment Introduction General physiography Regional climate Surficial and bedrock geology Permafrost and ground ice General biota Vegetation Floristic survey Vegetation mapping Soils and mapping Chapter 2. Roadbed performance and associated investigations Roadbed investigations Roadbed performance Performance of drainage features Performance of sideslopes Conclusions from road, drainage and sideslope performance studies Fuel gas line construction Chapter 3. Distribution and properties of road dust along the northern portion of the Haul Road Introduction Methods Results of wind direction and velocity measurements Dust load and distribution Particle size analyses of dust Chemical composition properties of dust and related samples Soil cation composition Dust impacts on vegetation Discussion and conclusions Chapter 4. Revegetation and restoration investigations Introduction Revegetation approaches Alyeska erosion control and revegetation program Weeds and weedy plants Performance of revegetation Alyeska willow cutting program CRREL restoration experiments Conclusions Revegetation recommendations General report recommendations Literature cited Appendix A: General environmental guidelines applicable to subarctic and arctic road construction Appendix B: University-based studies along the Yukon River-Prudhoe Bay Haul Road Appendix C: CRREL maps of Haul Road showing locations of all study Sites Appendix D: Additional Haul Road cross-sectional profiles Appendix E: Clay mineralogy of road-related materials Appendix F: List of reports in the Joint State/Federal Fish and Wildlife Ad­visory Team series
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  • 52
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/17
    In: CRREL Report, 80-17
    Description / Table of Contents: Construction pads made of snow were used to build two sections of the Trans Alaska Pipeline and a small gas pipeline during the winter of 1975-76. Construction during the winter has become increasingly common in the Arctic. Surface travel and the use of heavy construction equipment on the unprotected tundra have been severely restricted, even during the winter, so the use of temporary winter roads and construction pads built of snow and ice has been advocated and is being adopted. The three snow construction pads mentioned above were the first snow roads and construction pads used on a large scale in Alaska. Snow roads and construction pads have two objectives: to protect the underlying vegetation and upper layers of the ground, and to provide a hard, smooth surface for travel and the operation of equipment. Several types have been built, and a brief discussion is given of their history and classification systems. The three snow construction pads used in construction of the Trans-Alaska Pipeline and the small gas pipeline in 1975-76 were visited and observed while in use. The Globe Creek snow pad, about 50 miles north of Fairbanks, was built primarily of manufactured snow hauled to the site and watered. With very high densities this pad withstood heavy traffic and use by heavy construction equipment except on one steep slope. There, the use of tracked vehicles and vehicles without front wheel drive disaggregated the snow on and near the surface so that vehicles without front wheel drive were unable to climb the hill. The Toolik snow pad, just north of the Brooks Range, was built of compacted snow and proved capable of supporting the heaviest traffic and construction equipment. The fuel gasline snow pad ran from the northern Brooks Range to the Arctic Coast and also proved capable of supporting the necessary traffic. Both the Toolik snow pad and the fuel gasline snow pad failed in very early May because of unseasonably warm and clear weather before the associated construction projects were completed. However, the three snow pads must be considered successful. Common problems were the lack of snow, slopes, unseasonably warm spring weather, and inexperience on the part of contractors and construction personnel.
    Type of Medium: Series available for loan
    Pages: v, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 80-17
    Language: English
    Note: CONTENTS Abstract Preface Introduction History of snow and ice roads Classification of snow and ice roads Snow pads used by Alyeska during the winter of 1975-1976 The Globe Creek snow pad The Toolik snow pad The gasline snow pad Summary and conclusions Literature cited
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  • 53
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/16
    In: CRREL Report, 80-16
    Description / Table of Contents: Eight species of loricate choanoflagellates (Acanthoccidae), Acanthoecopsis spiculifera, Bicosta spinifera, Bicosta antennigera, Callicantha simplex, Calliacantha multispina aff., Crinolina aperta, Diaphanoeca multionnulata, and Parvicorbicula socialis, were observed in samples obtained from the Weddell Sea during the austral summer, 1977. D. multiannulata was described for the first time from these samples; the other organisms have either been described previously or are being described at this time. The distribution of most species within the Weddell Sea was widespread. The distributional, environmental, and morphological range of A. spiculifera, B. spinifera, C. aperta, and P. socialis was expanded. Habitats in which choanoflagellates were found included the water column, the edges of ice floes, ponds on ice floes, and the interiors of ice floes. The presence of choanoflagellates within the ice indicates that there may be a closely coupled trophic relationship with the other two biological components of the ice community, the ice algae and the bacteria. The presence in the ice of seven species with both a caudal appendage and anterior projections suggests a positive relationship between this lorica configuration and the ice habitat. Mechanisms of variance of transverse costal diameters between genera may be useful to the taxonomy and phylogeny of this family.
    Type of Medium: Series available for loan
    Pages: vi, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 80-16
    Language: English
    Note: CONTENTS Introduction Literature review Objectives Materials and methods Results Observations Distribution and environmental tolerances Discussion Morphology Distribution Habitat Summary Conclusions Recommendations for future work Literature cited Appendix A Type descriptions of Acanthoecidae collected from the Weddell Sea
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  • 54
    Call number: PIK N 453-26-90149
    Description / Table of Contents: Ohne Kurzreferat
    Type of Medium: Monograph available for loan
    Pages: XVIII, 253 Seiten , graph. Darst., Kt , 1 eingeheftete Beil., 19 Tafeln im Schuber
    Edition: 1st ed
    ISBN: 0080209254 (hbk) , 008020919X (pbk)
    Series Statement: Pergamon marine series 3
    Language: English
    Location: A 18 - must be ordered
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  • 55
    Call number: ZSP-980-89 ; ZSP-980-89(2. Ex.)
    In: ZfI-Mitteilungen ; 89, Nr. 89
    Type of Medium: Series available for loan
    Pages: 132 S. , Ill., graph. Darst., Kt.
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 89
    Language: English
    Note: Contents: Preface. - Tritium in Antarctic precipitation - information on global distribution / D. Hebert. - On the physical geography of the Schirmacher Oasis (East Antarctica, Dronning Maud Land) / W. Richter. - Investigation of Deuterium concentration relations between atmospheric water vapour and precipitations in the Schirmacher Oasis, East Antarctica / P. Kowski. - Isotope-hydrological and hydrochemical characterization of lakes in the Schirmacher Oasis (East Antarctica) / W. Richter, U. Wand, G. Strauch, P. Kowski, W. Kurze. - Isotope-hydrological and hydrochemical studies of the interior Antarctic lake "Untersee" in the Wohlthat Massif, Dronning Maud Land, East Antarctica / W.-D. Hermichen, M. Crelle, P. Kowski, W. Kurze, U. Wand. - The isotope-glaciological situation in the surroundings of the Schirmacher Oasis/Dronning Maud Land - a first overview / W.-D. Hermichen, P. Kowski, G. Strauch. - Radiocarbon dating of breeding places of petrels in the Antarctic / A. Hiller, U. Wand. - K - Ar dating of basalt dykes in the Schirmacher Oasis, Dronning Maud Land, East Antarctica / G. Kaiser, U. Wand.
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  • 56
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/24
    In: CRREL Report, 82-24
    Description / Table of Contents: Velocity data derived from petroleum industry seismic records from Harrison Bay show that high-velocity material ( or = 2 km/s) interpreted to be ice-bonded permafrost is common. In the eastern part of the bay, the depth to high velocity material increases and velocity decreases in an orderly manner with increasing distance from shore until the layer is no longer apparent. The western part of the bay is less orderly, possibly reflecting a different geological and thermal history. This western part may be an inundated section of the low coastal plain characterized by the region north of Teshekpuk Lake, and could have contained deep thaw lakes, creating low velocity zones. Along some seismic lines, the high-velocity material extends approximately 25 km offshore. Two anomalies have been found which could be associated with rapidly degrading permafrost. One is strong attenuation, which was interpreted as an indication of gas in the shallow deposits. The other is the presence of considerable seismic noise, including identifiable small seismic events. The origin of this noise has not been positively established, and it is proposed that it may indicate that some movement is occurring in the sediments due to thaw.
    Type of Medium: Series available for loan
    Pages: 65 Seiten , Illustrationen
    Series Statement: CRREL Report 82-24
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods Reading records Refractions Reflections Rayleigh waves Spatial resolution Anomalies Results and discussion Seismic velocity distribution Attenuation Low-level natural seismicity Summary Literature cited Appendix A: Error estimates Appendix B: Velocity profiles Appendix C: Seismic cross sections
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  • 57
    Call number: ZSP-201-82/26
    In: CRREL Report, 82-26
    Description / Table of Contents: The Caribou-Poker Creeks Research Watershed is a small (101.5-sq km) drainage basin located 48 km northwest of Fairbanks, Alaska. Elevations within the watershed range from 210 to 826 m, and approximately 28% of its area is underlain by permafrost. Climatic differences between the watershed and Fairbanks are primarily due to the higher elevation of the watershed. Generally the watershed climatic sites are warmer in winter and cooler in summer than Fairbanks. Within the watershed the greatest temperature contrasts exist in winter, when the valley-bottom sites are beneath the regional air temperature inversion, and the higher sites are above it. From May through September the total precipitation averages 270 mm, 1.47 times that received at Fairbanks. The annual precipitation is about 1.7 times that of Fairbanks. The historical precipitation record at Fairbanks indicates that summer precipitation was below the long-term normal in eight of the eleven years of watershed measurements (1969-1980); no climatic extremes occurred during this period. An analysis of annual streamflow data showed an inconsistency of baseflow recessions from year to year. The runoff-rainfall ratio for individual summer storms averaged 0.35 for Caribou Creek. Comparisons of spot discharge measurements of predominantly permafrost and non-permafrost subwatersheds showed that permafrost-dominated watersheds have a much flashier response to precipitation than non-permafrost watersheds. A comparison of the annual flow distribution of the watershed indicated that Caribou Creek has lower summer and higher winter discharges per unit area than the Chena or Salcha Rivers.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 82-26
    Language: English
    Note: CONTENTS Abstract Preface Introduction Setting Geology and soils Vegetation Climate Air temperature Precipitation Hydrology Annual and monthly runoff Individual storms Baseflow recessions Spatial flow variability Temporal flow variability Summary and conclusions Literature cited Appendix A: Station histories
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  • 58
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/27
    In: CRREL Report, 82-27
    Description / Table of Contents: Recommendations for economical thicknesses for building insulation result from a study of fuel and construction costs of 12 military installations in Alaska. A comparison between the insulation thickness that a building owner might choose today and what he might choose in 20 years indicates a trend for much thicker insulation in the future. An analysis of how much more expensive a building built today with the thickness that would be appropriate 20 years hence indicates only a small penalty in life-cycle costs for the additional insulation. Therefore, a minimum of R-32 walls and R-62 attics is recommended for most of Alaska.
    Type of Medium: Series available for loan
    Pages: 54 Seiten , Illustrationen
    Series Statement: CRREL Report 82-27
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors Summary Introduction Determining economic thicknesses for insulation Background Analysis method for new construction Analysis method for reinsulating existing construction Sensitivity and longevity of the results Sensitivity Longevity Recommendations Saving money vs. saving energy Energy economics conservation Building energy performance standards Conclusion Literature cited Appendix A: Heating system costs Appendix B: Present worth factors Appendix C: Base case and incremental thermal properties Appendix D: LCC comparison graphs for wall and roof systems Appendix E: Cost penalties for energy conservatism Appendix F: Graphic aid for figuring energy savings thermal improvements
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  • 59
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/29
    In: CRREL Report, 82-29
    Description / Table of Contents: Ice grains in a snow cover with a low temperature gradient assume a well-rounded equilibrium form. However, at temperature gradients of 0.1 to 0.2 C/cm (depending somewhat on temperature and snow density), the rounded grains recrystallize into a faceted kinetic growth form. The large temperature gradient must play a decisive role in moving the vapor fast enough to sustain the rapid growth rate associated with the kinetic growth form. Once the large temperature gradient is removed, the grains recrystallize back to the equilibrium form. the recrystallization occurs in either direction without a change in bulk density. The growth of faceted crystals begins at the warmer base of the snow cover where the excess vapor pressure is largest. A transition between the overlying rounded grains moves upward in time. Faceted crystals also grow just below crusts of reduced permeability, where the increased vapor accumulation can sustain the excess vapor pressure neded for kinetic growth. The heat and vapor flows are described using a model based on thermodynamic equilibrium. The temperature distribution is shown to be quasi-linear at steady state in homogeneous snow. The recrystallization of the snow is modeled using the rounded grains as sources and the faceted grains as sinks. In the future this model should be extended to account for different temperatures among the sources and sinks.
    Type of Medium: Series available for loan
    Pages: 27 Seiten , Illustrationen
    Series Statement: CRREL Report 82-29
    Language: English
    Note: Contents: Abstract Preface Introduction Vapor flow Temperature profile Crystal growth rates Equilibirum versus kinetic growth forms of snow crystals Discussion Summary Literature cited
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  • 60
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/30
    In: CRREL Report, 82-30
    Description / Table of Contents: Equations are developed that can be used to determine the amount of gas present in sea ice from measurements of the bulk ice density, salinity and temperature in the temperature range o f-2 to -30°C. Conversely these relationships can be used to give the density of sea ice as a function of its temperature and salinity, considering both the presence of gas and of solid salts in the ice. Equations are also given that allow the calculation of the gas and brine volumes in the ice at temperatures other than that at which the bulk density was determined.
    Type of Medium: Series available for loan
    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 82-30
    Language: English
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  • 61
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/31
    In: CRREL Report, 82-31
    Description / Table of Contents: Information on sea ice conditions in the Bering Strait and the icefoot formation around Fairway Rock, located in the strait, is presented. Cross-sectional profiles of Fairway Rock and the relief of the icefoot are given along with theoretical analyses of the possible forces active during icefoot formation. It is shown that the ice cover most likely fails in flexure as opposed to crushing or buckling, as the former requires less force. Field observations reveal that the Fairway Rock icefoot is massive, with ridges up to 15 m high, a seaward face only 20 degrees from vertical, and interior ridge slopes averaging 33 degrees. The icefoot is believed to be grounded and its width ranges from less than 10 to over 100 m.
    Type of Medium: Series available for loan
    Pages: 44 Seiten , Illustrationen
    Series Statement: CRREL Report 82-31
    Language: English
    Note: CONTENTS Abstract Preface Introduction Bering Strait Field reconnaissance Estimation of ice forces on Fairway Rock 1. Creep deformation 2. Crushing failure 3. Flexural failure 4. Forces required to form floating or grounded pressure ridges along therock or to pile ice on the beaches 5. Buckling failure Driving forces Angle of internal friction of sea ice Summary Literature cited Appendix A: April 1982 field observations at Fairway Rock
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  • 62
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/32
    In: CRREL Report, 82-32
    Description / Table of Contents: Low-frequency (10 Hz) volcanic earthquakes originate at a wide range of depths and occur before, during, and after magmatic eruptions. The characteristics of these earthquakes suggest that they are not typical tectonic events. Physically analogous processes occur in hydraulic fracturing of rock formations, low-frequency icequakes in temperate glaciers, and autoresonance in hydroelectric power stations. We propose that unsteady fluid flow in volcanic conduits is the common source mechanism of low-frequency volcanic earthquakes (tremor). The fluid dynamic source mechanism explains low-frequency earthquakes of arbitrary duration, magnitude, and depth of origin, as unsteady flow is independent of physical properties of the fluid and conduit. Fluid transients occur in both low-viscosity gases and high-viscosity liquids. A fluid transient analysis can be formulated as generally as is warranted by knowledge of the composition and physical properties of the fluid, material properties, geometry and roughness of the conduit, and boundary conditions. To demonstrate the analytical potential of the fluid dynamic theory, we consider a single-phase fluid, a melt of Mount Hood andeside at 1250 deg C, in which significant pressure and velocity variations occur only in the longitudinal direction.
    Type of Medium: Series available for loan
    Pages: 15 Seiten , Illustrationen
    Series Statement: CRREL Report 82-32
    Language: English
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  • 63
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/10
    In: CRREL Report, 81-10
    Description / Table of Contents: Abstract: This treatise thoroughly reviews the subjects of density, thermal expansion and compressibility of ice; snow density change attributed to destructive, constructive and melt metamorphism; and the physics of regelation and the effects on penetration rate of both the thermal properties of the wire and stress level. Heat capacity, latent heat of fusion and thermal conductivity of ice and snow over a wide range of temperatures were analyzed with regression techniques. In the case of snow, the effect of density was also evaluated. The contribution of vapor diffusion to heat transfer through snow under both natural and forced convective conditions was assessed. Expressions representing specific and latent heat of sea ice in terms of sea ice salinity and temperature were given. Theoretical models were given that can predict the thermal conductivities of fresh bubbly ice and sea ice in terms of salinity, temperature and fractional air content.
    Type of Medium: Series available for loan
    Pages: 27 Seiten , Illustrationen
    Series Statement: CRREL Report 81-10
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Density, thermal expansion and compressibility of ice Density Thermal expansion Compressibility Density changes in snow Compaction Destructive metamorphism Constructive metamorphism Melt metamorphism Regelation Thermal properties of snow and fresh-water ice Heat capacity of snow and ice Latent heat Thermal conductivity of ice Thermal conductivity of snow Effective thermal diffusivity Heat transfer by water vapor diffusion in snow Heat and vapor transfer with forced convection Thermal properties of sea ice Specific heat of sea ice Heat of fusion of sea ice when 0° 〉 θ 〉 -8.2°C Density and thermal conductivity of sea ice Composition and air bubble content of sea ice above -8.2°C Thermal conductivity model for sea ice Thermal diffusivity of sea ice Method of determining thermal diffusivity Summary Literature cited
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  • 64
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/29
    In: CRREL Report, 83-29
    Description / Table of Contents: A literature review indicated that the effects or permafrost on streambank erodibility and stability are not yet understood because systematic and quantitative measurements are seriously lacking. Consequently, general controversy exists as to whether perennially frozen ground inhibits lateral erosion and bankline recession, or whether it increases bank recession rates. Perennially frozen streambanks erode because of modification of the bank's thermal regime by exposure to air and water, and because of various erosional processes. Factors that determine rates and locations of erosion include physical, thermal and structural properties of bank sediments, stream hydraulics and climate. Thermal and physical modification of streambanks may also induce accelerated erosion within permafrost terrain removed from the immediate river environment. Bankline or bluffline recession rates are highly variable, ranging from less than 1 m/year to over 30 m/year and, exceptionally, to over 60 m/year. Long-term observations of the physical and thermal erosion processes and systematic ground surveys and measurements of bankline-bluffline recession rates are needed.
    Type of Medium: Series available for loan
    Pages: iv, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 83-29
    Language: English
    Note: CONTENTS Abstract Preface Introduction Stream bank erosional processes Permafrost and related factors Permafrost and erosion General Erosional processes Bank zone processes Bluff zone processes Factors affecting perm afrost erodibility Exposure to currents and wind waves Texture and stratigraphy Ice content, distribution and type Slope aspect Coriolis force Timing and depth of thaw Water level and temperature Vegetation Ice and snow cover Groundwater Rates and timing of erosion and recession Overall effects of permafrost Recommendations for research Literature cited Appendix A : Processes of stream bank modifications
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  • 65
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/2
    In: CRREL Report, 84-2
    Description / Table of Contents: Investigations of the in situ complex dielectric constant of sea ice were made using time-domain spectroscopy. It was found that (1) for sea ice with a preferred horizontal crystal c-axis alignment, the anisotropy of polarizing properties of the ice increased with depth, (2) brine inclusion conductivity increased with decreasing temperature down to about -8 C, at which point the conductivity decreased with decreasing temperature, (3) the DC conductivity of sea ice increased with increasing brine volume, (4) the real part of the complex dielectric constant is strongly dependent upon brine volume but less dependent upon the brine inclusion orientation, (5) the imaginary part of the complex dielectric constant was strongly dependent upon brine inclusion orientation but much less dependent upon brine volume. Because the electromagnetic (EM) properties of sea ice are dependent upon the physical state of the ice, which is continually changing, it appears that only trends in the relationships between the EM properties of natural sea ice and its brine volume and brine inclusion microstructure can be established.
    Type of Medium: Series available for loan
    Pages: vi, 38 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 84-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Dielectric properties of sea ice Time-domain spectroscopy measurement Laboratory measurements Field measurements Analysis of ladder data Conductivity of brine and sea ice Complex dielectric constant of brine and sea ice Discussion and conclusions Literature cited
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  • 66
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/3
    In: CRREL Report, 84-3
    Description / Table of Contents: The results of resistance tests in level ice and broken ice channels are presented for two models of the WTGB 140-fticebreaker at scales of 1:10 and 1:24, respectively. No scale effect on the resistance in level ice could be detected between the two models. From the test results an empirical predictor equation for the full scale ice resistance is derived. Predicted resistance is compared against, and found to be 25 to 40% larger than, available full-scale values estimated from thrust measurements during full-scale trials of the Great Lakes icebreaker Katmai Bay.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 84-3
    Language: English
    Note: COTENTS Abstract Preface Nomenclature Introduction Model characteristics and test conditions Ice-hull coefficient of friction Measurements of ice properties Experimental procedures Data acquisition system Test program and procedures for 1:10 model Test program and procedures for 1:24 model Analysis of test results Comparison of test results between 1:10 and 1:24 models Analysis of tests in broken or brash-filled ice channels Analysis of tests in level ice Full-scale prediction of level ice resistance Conclusions Literature cited
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  • 67
    Call number: ZSP-980-71
    In: 2nd Working Meeting "Radioisotope Application and Radiation Processing in Industry", Part 3, 98 to 155
    In: ZfI-Mitteilungen, Nr. 71
    Type of Medium: Series available for loan
    Pages: 368 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 71
    Language: English
    Note: Contents of Part 3 P. Popp, J. Leonhardt: Characterization of coulometric and hypercoulometric ECD mode of operation D. Hinneburg, H.-J. Grosse, J. Leonhardt, P. Popp: Calculation of current-voltage characteristics of electron-capture detectors A.G. Rozno, V.V. Gromov: Study of volume electric charge in radioactive dielectrics by the method of "acoustic sounding" Iv. N. Pandev, M.G. Christova, St.D. Stefanov, N.V. Gentchev, St.T. Bakardjiev, D.T. Genov, Ch.D. Christov: Portable gamma-irradiator - modified model P. Hargittai, V. Stenger: Planning of dose-rate distribution of radiation fields by computer M. Remer: DOSKMF2 - A contribution to the computer-aided design of dose rate distributions A. Heger, H. Dorschner, W. Schumann, D. Pleul: Characterization of the radiation field and control of the optimal electron beam accelerator operation for industrial processes V. Prenerov, K. Shivarov, P. Ivanov: Programme for radiation protection by using portable defectoscopes in industrial building T. Geßner, K. Irmer: Nuclear radiation detectors using high resistivity neutron transmutation doped silicon H.-G. Könnecke, D. Luther: The influence of airing systems on the residence time in biological clarification plants J. Dermietzel, C. Wienhold, H. Grundmann, A. Staschok, J. Koch, E. Bordes: Tracer studies on carbon monoxide and carbon dioxide formation in liquid phase oxidation of p-xylene W. Smułek: Use of technical mixtures of carboxylic acids to the extraction of silver H. Förster: Determination of oxide film thickness on aluminium using 14-MeV neutron activation and BET method H. Jaskólska, L. Waliś, C. Janusz: Investigations of the monocrystallization process of neodymium doped YAG using radiotracers H. Wagler: Substoichiometric determination of Pd-II-traces with dithizone and problems of determination P. Tábor, L. Molnár, D. Nagymihá!yi: Radioisotope gauge for automatic control of cottonwool package H.-W. Thummel, G. Körner, D. Fritzsche: Compensation for thickness variations in determining the bulk material composition on conveyor belts using combined scatter-transmission and thickness measuring methods D. Fritzsche, W. Dolak: Radiometric determination of ash content of raw lignites M. Braune: A simplified mathematical model for scattered transmission of X-rays in raw brown coal P. S. Kamenov, E. I. Vapirev, S. I. Ormandjiev: A new type of nuclear weighing device for transporter belts W. Smulek, M. Borkowski: Separation of reduced molybdenum from fission products. The Mo - HN03 - HDEHP system J. Komosiński, M. Radwan: Selected problems of radioisotope technique for wear investigation of precise elements Dr. A. Várkonyi: The thin layer activation for industry G. Hartmann, P. Kulicke: Wear testing in power stations J. Kraś, Z. Banasik: The radioisotopes in wear investigation of combustion engines H.-D. Grohmann: Short-time measurements of wear on surface activated rails G.M. Ter-Akopian, E.A. Sokol, Fam Ngok Chyong, M.P. Ivanov, L.P. Chelnokov, V.I. Smirnov, V.A. Gorshkov: Neutron multiplicity detector for the study of rare nuclear decay events L. Gąsiorowski, P. Mroziński, K. Sobkowicz, F. Zrudelny: Implementation of Intel 8080 - based microcomputer system in the radioisotope measurements control instrumentation W. Birkholz, M. Steinert: Evaluation of autoradiograms using a microcomputer F. Myšák, M. Krejči, J. Hakl, E. Smrkovský: Study of boron diffusion in high temperature Ni-base alloys by means of solid state track detectors W. Birkholz, H.-Ch. Treutler, K. Freyer, M. Geisler, J. Dubnack: Autoradiography of gallium in silicon H.C. Treutler, K. Freyer: On quantitative autoradiography of semiconductor basic material A.S. Shtan': Radiation evaluation techniques and facilities used for quality assurance of fuel elements and fuel assemblies for nuclear power plants D. Babić, A. Šafranj, V. Marković: Radiation degradation of poly-propylene-molecular weight and melt viscosity change A. Ciszek: Modern irradiation processes equipment-accelerators and their applications G. Kummer: Identification of signals by means of the decision theory N.S. Batchvarov, I.D. Vankov, L.P. Dimitrov, Ch.D. Shukov, P.A. Pavlov: Betareflektometer SR-77
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  • 68
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/13
    In: CRREL Report, 81-13
    Description / Table of Contents: Electrical properties of frozen ground were measured using radio frequency interferometry (RFI) in the very high frequency (VHF) radiowave band. Ice-rich organic silts and sands and gravels of variable ice content were investigated during early April of both 1979 and 1980. Frequencies between 10 and 150 MHz were used with best results obtained between 40 and 100 MHz. Surface impedance and magnetic induction techniques were also used to obtain an independent measure of low frequency resistivity and to obtain a separate control on vertical inhomogeneity. Soil samples were tested for organic and water content. The dielectric constants determined for the ice-rich organic silts ranged from 4.0 to 5.5 while those for the sands and gravels were about 5.1. Dielectric loss was due to d.c. conduction and was very low for the silts but significant for the sands and gravels. The higher values for the sands and gravels were most likely due to the higher concentrations of salt that are reported to exist in the old beach ridges in this region. All the RFI measurements are believed to be indicative of only the first few meters of the ground although the radiowaves could penetrate to tens of meters.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 81-13
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Objectives and procedures Theory and instrumentation Radio frequency interferometry Case 1: Homogeneous ground model Case 2: Two-layer ground model RFI instrumentation Low frequency methods Point Barrow sites Results and discussion Site 1: Tundra Site 2: Beach ridge Site 3: Marsh Conclusions Literature cited Appendix A: Discussion of low-frequency geophysical methods
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  • 69
    Monograph available for loan
    Monograph available for loan
    New York, NY [u.a.] : Norton
    Call number: PIK B 160-21-94413
    Type of Medium: Monograph available for loan
    Pages: XIV, 306 S. , graph. Darst.
    Edition: 3. ed.
    ISBN: 9780393919172 (hardcover)
    Language: English
    Note: Preface -- Introduction : the facts of economic growth -- The Solow model -- Empirical applications of neoclassical growth models -- The economics of ideas -- The engine of growth -- A simple model of growth and development -- Social infrastructure and long-run economic performance -- Population and the origin of sustained economic growth -- Alternative theories of endogenous growth -- Natural resources and economic growth -- Understanding economic growth -- Appendix A: Mathematical review -- Appendix B: Readings of interest -- Appendix C: Data on economic growth -- Bibliography -- Index..
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  • 70
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/3
    In: CRREL Report, 81- 3
    Description / Table of Contents: Abstract: A 1:24 scale hydraulic model study of water intake under frazil ice conditions is presented. The intake, located 9 m below the surface of the St. Lawrence River in Massena, New York,has a through flow of 0.14 m^3/s. The model study, conducted in the refrigerated flume facility of the U.S. Army Cold Regions Research and Engineering Laboratory, investigated methods of minimizing the frazil ice blockage on the intake. Two protective structures were modeled and the relative benefits of each are presented. The additional cross-sectional area provided by the protective structures lowered the vertical velocity component of the intake water to 0.0027 m/s. At this velocity the buoyant force acting on the frazil ice particle is larger than the downward drag force, causing the particle to rise. The results demonstrate that under certain low flow conditions a protective structure can minimize frazil ice blockage problems.
    Type of Medium: Series available for loan
    Pages: 11 Seiten , Illustrationen
    Series Statement: CRREL Report 81-03
    Language: English
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  • 71
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/2
    In: CRREL Report, 81-2
    Description / Table of Contents: Abstract: Many hyperbolic reflections have been observed on marine seismic records obtained during oil exploration in the Beaufort Sea, and on USGS seismic sub-bottom profiles from the Prudhoe Bay vicinity. A hyperbolic projection system was designed to rapidly measure seismic velocities from the curves on the records. The velocities observed were approximately the velocity of sound in water. The hyperbolic signals also showed dispersion properties similar to acoustic normal modes in shallow water. These observations indicate that the signals responsible for the hyperbolic reflections propagate as normal modes within the water layer, with very limited penetration of the seabed. Determinations of the dominant frequency of these signals indicate that the penetration into the seabed has a characteristic attenuation depth (skin depth) of about 1.5 m for the sub-bottom profiles and 12 m for the marine records. It therefore appears that some hyperbolic reflections may be generated by variations in materials that occur near the seabed. There is some evidence of linearity of the anomalies, possibly related to sediment-filled or open ice gouges, or other changes in material properties at shallow depths.
    Type of Medium: Series available for loan
    Pages: iv, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 81-2
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods of analysis Marine seismic records Seismic sub-bottom profiles Results and discussion Distribution of hyperbolic reflections Hyperbolas on oil exploration records Hyperbolas on sub-bottom profiles Conclusions Literature cited Appendix A: Hyperbola projector
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  • 72
    Call number: 9781629487991 (e-book)
    Description / Table of Contents: This book described the current status and possible future changes of the thermokarst (thaw) lakes of western Siberia as dominant forms of landscape and regulators of greenhouse gas exchange within the atmosphere. Thawing permafrost and resulting microbial decomposition of previously frozen organic carbon is one of the most significant terrestrial ecosystem positive feedbacks to a warming climate. Ongoing processes of the permafrost thawing in Western Siberia are likely to increase the surface of water bodies via forming so-called thermokarst lakes, mobilizing the organic carbon (OC) from the soil pool to the rivers and, finally, to the ocean, and thus modifying the fluxes of methane (CH4) and CO2 to the atmosphere. Despite their tremendous importance for green house gazes regulation and hydrological regime control, very little is known about hydrochemistry of western Siberia thaw lakes. This book assesses the variation of major and trace elements (TE) and organic carbon (OC) concentration along the chronosequence of lake development and the latitude profile of variable permafrost abundance; characterizes the colloidal status of TE and distinguishes between the relative proportion of organic and organo-mineral colloids; describes the particularity of microbiological composition of thermokarst lake waters and production/mineralization processes in the water column; and presents the perspective of water chemical composition evolution under the climate change scenario. Each of these aforementioned objectives present a scientific challenge given mainly the paucity of existing information on these important but still very poorly studied ecosystems. Taken together, understanding of these issues and identification and quantification of controlling environmental parameters should produce conceptually new knowledge of biogeochemical processes operating within the Western Siberia Plain with the possibility of extrapolation of generated knowledge to much larger territories of arctic and subarctic permafrost-affected areas. (Imprint: Nova)
    Type of Medium: 12
    Pages: 1 Online-Ressource (179 Seiten) , Illustrationen
    ISBN: 9781629487991 (e-book)
    Series Statement: Biochemistry research trends
    Language: English
    Note: Table of Contents Introduction: Thermokarst Lakes of Western Siberia as Dominant Forms of Landscape and Regulators of Greenhouse Gas Exchange with the Atmosphere Chapter 1. Thermokarst Lakes: Distribution, Cycle of Development, Surface Coverage and Evolution Chapter 2. Sources of Dissolved Components in Thermokarst Lakes Chapter 3. Temperature and Gas Regime Chapter 4. Dissolved Organic Carbon Chapter 5. Microbiology of Thermokarst Lake Systems Chapter 6. Trace Elements in Thermokarst Lakes Chapter 7. Colloids in Thermokarst Lakes Chapter 8. Latitude Profile Gradients of Lakes: Substituting Space for Time Chapter 9. Possible Impact of Climate Warming on Stocks and Fluxes of Carbon and Related Elements in Western Siberian Lakes Conclusions: Thaw Lakes as Indicators of Climate Change References Index
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  • 73
    Journal available for loan
    Journal available for loan
    Tübingen : Mohr Siebeck ; 1.1884 - 48.1931; N.F. 1.1932/33 - 10.1943/44(1945),3; 11.1948/49(1949) -
    Call number: ZS 22.95039
    Type of Medium: Journal available for loan
    Pages: Online-Ressource
    ISSN: 1614-0974 , 0015-2218 , 0015-2218
    Language: German , English
    Note: N.F. entfällt ab 57.2000. - Volltext auch als Teil einer Datenbank verfügbar , Ersch. ab 2000 in engl. Sprache mit dt. Hauptsacht.
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  • 74
    Monograph available for loan
    Monograph available for loan
    Cambridge : Cambridge University Press
    Call number: AWI Bio-22-94882
    Type of Medium: Monograph available for loan
    Pages: XXI, 506 Seiten , Illustrationen
    ISBN: 978-0-521-75777-5 (pbk) , 978-0-521-76763-7 (hbk)
    Language: English
    Note: Contents List of contributors Preface I Introductory Chapters 1 The Ecological Value of Biyophytes as Indicators of Climate Change / NANCY G. SLACK 2 Bryophyte Physiological Processes in a Changing Climate: an Overview / ZOLTÁN TUBA II Ecophysiology 3 Climatic Responses and Limits of Biyophytes: Comparisons and Contrasts with Vascular Plants / MICHAEL C. F. PROCTOR 4 Effects of Elevated Air C02 Concentration on Bryophytes: a Review / ZOLTÁN TUBA, EDIT ÖTVÖS, AND ILDIKÓ JÓCSÁK 5 Seasonal and Interannual Variability of Light and UV Acclimation in Mosses / NIINA M. LAPPALAINEN, ANNA HYYRYLÄINEN, AND SATU HUTTUNEN III Aquatic Bryophytes 6 Ecological and Physiological Effects of Changing Climate on Aquatic Bryophytes / JANICE M. GLIME 7 Aquatic Bryophytes under Ultraviolet Radiation / JAVIER MARTÍNEZ-ABAIGAR AND ENCARNACIÓN NÚÑEZ-OLIVERA IV Desert and Tropical Ecosystems 8 Responses of a Biological Crust Moss to Increased Monsoon Precipitation and Nitrogen Deposition in the Mojave Desert / LLOYD R. STARK, D. NICHOLAS MCLETCHIE, STANLEY D. SMITH, AND MELVIN J. OLIVER 9 Ecology of Bryophytes in Mojave Desert Biological Soil Crusts: Effects of Elevated CO2 on Sex Expression, Stress Tolerance, and Productivity in the Moss Syntrichia caninervis Mitt. / JOHN C. BRINDA, CATHERINE FERNANDO, AND LLOYD R. STARK 10 Responses of Epiphytic Bryophyte Communities to Simulated Climate Change in the Tropics / JORGE JÁCOME, S. ROBBERT GRADSTEIN, AND MICHAEL KESSLER V Alpine, Arctic, and Antarctic Ecosystems 11 Effects of Climate Change on Tundra Bryophytes / ANNIKA K. JÄGERBRAND, ROBERT G. BJÖRK, TERRY CALLAGHAN, AND RODNEY D. SEPPELT 12 Alpine Bryophytes as Indicators for Climate Change: a Case Study from the Austrian Alps / DANIELA HOHENWALLNER, HAROLD GUSTAV ZECHMEISTER, DIETMAR MOSER, HARALD PAULI, MICHAEL GOTTFRIED, KARL REITER, AND GEORG GRABHERR 13 Bryophytes and Lichens in a Changing Climate: An Antarctic Perspective / RODNEY D. SEPPELT VI Sphagnum and Peatlands 14 Living on the Edge: The Effects of Drought on Canada's Western Boreal Peatlands / MELANIE A. VILE, KIMBERLI D. SCOTT, ERIN BRAULT, R. KELMAN WlEDER, AND DALE H . VlTT 15 The Structure and Functional Features of Sphagnum Cover of the Northern West Siberian Mires in Connection with Forecasting Global Environmental and Climatic Changes / ALEKSEI V. NAUMOV AND NATALIA P. KOSYKH 16 The Southernmost Sphagnum-dominated Mires on the Plains of Europe: Formation, Secondary Succession, Degradation, and Protection / JÁNOS NAGY VII Changes in Bryophyte Distribution with Climate Change: Data and Models 17 The Role of Bryophyte Paleoecology in Quaternary Climate Reconstructions / GUSZTÁV JAKAB AND PÁL SÜMEGI 18 Signs of Climate Change in the Bryoflora of Hungary / TAMÁS PÓCS 19 Can the Effects of Climate Change on British Bryophytes be Distinguished from those Resulting from Other Environmental Changes? / JEFFREY W. BATES AND CHRISTOPHER D. PRESTON 20 Climate Change and Protected Areas: How well do British Rare Bryophytes Fare? / BARBARA J. ANDERSON AND RALF OHLEMÜLLER 21 Modeling the Distribution of Sematophyllum substrumulosum (Hampe) E. Britton as a Signal of Climatic Changes in Europe / CECÍLIA SÉRGIO, RUI FIGUEIRA, AND RUI MENEZES 22 Modeling Bryophyte Productivity Across Gradients of Water Availability Using Canopy Form-Function Relationships / STEVEN K. RICE, NATHALI NEAL, JESSE MANGO, AND KELLY BLACK VIII Conclusions 23 Bryophytes as Predictors of Climate Change / L. DENNIS GIGNAC 24 Conclusions and Future Research / NANCY G. SLACK AND LLOYD R. STARK Index
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  • 75
    facet.materialart.12
    Chichester, [England] : Wiley
    Call number: 9781444328479 (e-book)
    Type of Medium: 12
    Pages: 1 Online-Ressource (XIII, 768 Seiten) , Illustrationen
    Edition: Second edition
    ISBN: 9781444328479 (e-book) , 978-1-4443-2847-9
    Language: English
    Note: Contents Contents Preface Acknowledgements Part 1: Making Sediment Introduction Clastic sediment as a chemical and physical breakdown product 1.1 Introduction: clastic sediments—'accidents' of weathering 1.2 Silicate minerals and chemical weathering 1.3 Solute flux: rates and mechanisms of silicate chemical weathering 1.4 Physical weathering 1.5 Soils as valves and filters for the natural landscape 1.6 Links between soil age, chemical weathering and weathered-rock removal 1.7 Provenance: siliciclastic sediment-sourcing Further reading 2 Carbonate, siliceous, iron-rich and evaporite sediments 2.1 Marine vs. freshwater chemical composition and fluxes 2.2 The calcium carbonate system in the oceans 2.3 Ooid carbonate grains 2.4 Carbonate grains from marine plants and animals 2.5 Carbonate muds, oozes and chalks 2.6 Other carbonate grains of biological origins 2.7 Organic productivity, sea-level and atmospheric controls of biogenic CaCO3 deposition rates 2.8 CaCO3 dissolution in the deep ocean and the oceanic CaCO3 compensation mechanism 2.9 The carbonate system on land 2.10 Evaporite salts and their inorganic precipitation as sediment 2.11 Silica and pelagic plankton 2.12 Iron minerals and biomineralizers 2.13 Desert varnish 2.14 Phosphates 2.15 Primary microbial-induced sediments: algal mats and stromatolites Further reading 3 Sediment grain properties 3.1 General 3.2 Grain size 3.3 Grain-size distributions 3.4 Grain shape and form 3.5 Bulk properties of grain aggregates Further reading Part 2: Moving Fluid Introduction 4 Fluid basics 4.1 Material properties of fluids 4.2 Fluid kinematics 4.3 Fluid continuity with constant density 4.4 Fluid dynamics 4.5 Energy, mechanical work and power Further reading 5 Types of fluid motion 5.1 Osborne Reynolds and flow types 5.2 The distribution of velocity in viscous flows: the boundary layer 5.3 Turbulent flows 5.4 The structure of turbulent shear flows 5.5 Shear flow instabilities, flow separation and secondary currents 5.6 Subcritical and supercritical flows: the Froude number and hydraulic jumps 5.7 Stratified flow generally 5.8 Water waves 5.9 Tidal flow—long-period waves Further reading Part 3: Transporting Sediment Introduction 6 Sediment in fluid and fluid flow—general 6.1 Fall of grains through stationary fluids 6.2 Natural flows carrying particulate material are complex 6.3 Fluids as transporting machines 6.4 Initiation of grain motion 6.5 Paths of grain motion 6.6 Categories of transported sediment 6.7 Some contrasts between wind and water flows 6.8 Cohesive sediment transport and erosion 6.9 A warning: nonequilibrium effects dominate natural sediment transport systems 6.10 Steady state, deposition or erosion: the sediment continuity equation and competence vs. capacity Further reading 7 Bedforms and sedimentary structures in flows and under waves 7.1 Trinity of interaction: turbulent flow, sediment transport and bedform development 7.2 Water-flow bedforms 7.3 Bedform phase diagrams for water flows 7.4 Water flow erosional bedforms on cohesive beds 7.5 Water wave bedforms 7.6 Combined flows: wave-current ripples and hummocky cross-stratification 7.7 Bedforms and structures formed by atmospheric flows Further reading 8 Sediment gravity flows and their deposits 8.1 Introduction 8.2 Granular flows 8.3 Debris flows 8.4 Turbidity flows 8.5 Turbidite evidence for downslope transformation from turbidity to debris flows Further reading 9 Liquefaction, fluidization and sliding sediment deformation 9.1 Liquefaction 9.2 Sedimentary structures formed by and during liquefaction 9.3 Submarine landslides, growth faults and slumps 9.4 Desiccation and synaeresis shrinkage structures Further reading Part 4: Major External Controls on Sedimentation and Sedimentary Environments Introduction 10 Major external controls on sedimentation 10.1 Climate 10.2 Global climates: a summary 10.3 Sea-level changes 10.4 Tectonics 10.5 Sediment yield, denudation rate and the sedimentary record Further reading Part 5: Continental Sedimentary Environments Introduction 11 Rivers 11.1 Introduction 11.2 River networks, hydrographs,patterns and long profiles 11.3 Channel form 11.4 Channel sediment transport processes, bedforms and internal structures 11.5 The floodplain 11.6 Channel belts, alluvial ridges and avulsion 11.7 River channel changes, adjustable variables and equilibrium 11.8 Alluvial architecture: product of complex responses 11.9 Alluvial architecture: scale, controls and time Further reading 12 Subaerial Fans: Alluvial and Colluvial 12.1 Introduction 12.2 Controls on the size (area) and gradient of fans 12.3 Physical processes on alluvial fans 12.4 Debris-flow-dominated alluvial fans 12.5 Stream-flow-dominated alluvial fans 12.6 Recognition of ancient alluvial fans and talus cones Further reading 13 Aeolian Sediments in Low-Latitude Deserts 13.1 Introduction 13.2 Aeolian system state 13.3 Physical processes and erg formation 13.4 Erg margins and interbedform areas 13.5 Erg and draa evolution and sedimentary architecture 13.6 Erg construction, stasis and destruction: climate and sea-level controls 13.7 Ancient desert facies Further reading 14 Lakes 14.1 Introduction 14.2 Lake stratification 14.3 Clastic input by rivers and the effect of turbidity currents 14.4 Wind-forced physical processes 14.5 Temperate lake chemical processes and cycles 14.6 Saline lake chemical processes and cycles 14.7 Biological processes and cycles 14.8 Modern temperate lakes and their sedimentary facies 14.9 Lakes in the East African rifts 14.10 Lake Baikal 14.11 The succession of facies as lakes evolve 14.12 Ancient lake facies Further reading 15 Ice 15.1 Introduction 15.2 Physical processes of ice flow 15.3 Glacier flow, basal lubrication and surges 15.4 Sediment transport, erosion and deposition by flowing ice 15.5 Glacigenic sediment: nomenclature and classification 15.6 Quaternary and modern glacial environments and facies 15.7 Ice-produced glacigenic erosion and depositional facies on land and in the periglacial realm 15.8 Glaciofluvial processes on land at and within the ice-front 15.9 Glacimarine environments 15.10 Glacilacustrine environments 15.11 Glacial facies in the pre-Quaternary geological record: case of Cenozoic Antarctica Further reading Part 6: Marine Sedimentary Environments Introduction 16. Estuaries 16.1 Introduction 16.2 Estuarine dynamics 16.3 Modern estuarine morphology and sedimentary environments 16.4 Estuaries and sequence stratigraphy Further reading 17. River and Fan Deltas 17.1 Introduction to river deltas 17.2 Basic physical processes and sedimentation at the river delta front 17.3 Mass movements and slope failure on the subaqueous delta 17.4 Organic deposition in river deltas 17.5 River delta case histories 17.6 River deltas and sea-level change 17.7 Ancient river delta deposits 17.8 Fan deltas Further reading 18. Linear Siliciclastic Shorelines 18.1 Introduction 18.2 Beach processes and sedimentation 18.3 Barrier-inlet-spit systems and their deposits 18.4 Tidal flats, salt marsh and chenier ridges 18.5 Ancient clastic shoreline facies Further reading 19 Siliciclastic Shelves 19.1 Introduction: shelf sinks and lowstand bypass 19.2 Shelf water dynamics 19.3 Holocene highstand shelf sediments: general 19.4 Tide-dominated, low river input, highstand shelves 19.5 Tide-dominated, high river input, highstand shelves 19.6 Weather-dominated highstand shelves Further reading 20 Calcium-carbonate-evaporite Shorelines, Shelves and Basins 20.1 Introduction: calcium carbonate 'nurseries' and their consequences 20.2 Arid carbonate tidal flats, lagoons and evaporite sabkhas 20.3 Humid carbonate tidal flats and marshes 20.4 Lagoons and bays 20.5 Tidal delta and margin-spillover carbonate tidal sands 20.6 Open-shelf carbonate ramps 20.7 Platform margin reefs and carbonate build-ups 20.8 Platform margin slopes and basins 20.9 Carbonate sediments, cycles and sea-level change 20.10 Displacement and destruction of carbonate environments: silicicl
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  • 76
    Call number: AWI Bio-19-92456
    In: Nova Hedwigia / Beiheft, 144
    Type of Medium: Monograph available for loan
    Pages: IV, 545 Seiten , Illustrationen
    ISBN: 9783443510633
    Series Statement: Nova Hedwigia / Beiheft 141
    Language: English
    Note: Contents Preface Curriculum Vitae List of Publications by Horst Lange-Bertalot Bahls, L.: Seven new species in Navicula sensu stricto from the Northern Great Plains and Northern Rocky Mountains. Blanco, S., B. Van de Vijver, A. Vinocur, G. Mataloni, J. Goma, M. H. Novais & L. Ector: Hippodonta lange-bertalotii Van de Vijver, Mataloni & Vinocur sp. nov. and related small-celled Hippodonta taxa. Burliga, A. L. & J. P. Kociolek : Four new Eunotia Ehrenberg species (Bacillariophyceae) from pristine regions of Carajas National Forest, Amazonia, Brazil. Cantonati, M., M. Leira, N. Angeli & C. Lopez Rodriguez: Naviculadicta langebertcdotii sp. nov. (Bacillariophyta) from streams in Galicia (N-W Spain). Karthick, B., P. B. Hamilton & J. P. Kociolek: Taxonomy and biogeography of some Surirella Turpin (Bacillariophyceae) taxa from Peninsular India. Karthick, B. & Kociolek, J. P.: A new species of Pleurosigma from Western Ghats, South India. Metzeltin, D.: Eunotia langebertalotii, a new species from Lambir Hills National Park in Sarawak, tropical East Malaysia Monnier, O., L. Ector, F. Rimet, M. Ferreol & L. Hoffmann: Adlafia langebertalotii sp. nov. (Bacillariophyceae), a new diatom from the Grand-Duchy of Luxembourg morpho­logically similar to A. suchlandtii comb. nov. Morales, E. A., K. M. Manoylov & L. L. Bahls: Fragilariforma horstii sp. nov. (Ba­cillariophyceae) a new araphid species from the northern United States of America Reichardt, E.: Der Artenkomplex um Gomphonema occultum E. Reichardt & Lange-Bertalot (Bacillariophyceae): Variability und drei neue Arten Stachura-Suchoples, K.: On taxonomy of Pliocaenicus costatus species complex, varieties, demes or/and morphological variability? Trobajo, R., D. G. Mann & E. J. Cox: Studies on the type material of Nitzschia abbreviata (Bacillariophyta) Van de Vijver, B., B. Chattova, D. Metzeltin & M. Lebouvier: The genus Pinnularia (Bacillariophyta) on lie Amsterdam (TAAF, Southern Indian Ocean) Van de Vijver, B., A. Jarlman, M. de Haan & L. Ector: New and interesting diatom species (Bacillariophyceae) from Swedish rivers Williams, D. M.: Diatoma moniliforme: Commentary, relationships and an appropriate name Ake-Castillo, J. A., Y. B. Okolodkov, S. Espinosa-Matias, F. del C. Merino-Virgilio, J. A. Herrera-Silveira & L. Ector: Cyclotella marina (Tanimura, Nagumo et Kato) Ake-Castillo, Okolodkov et Ector comb, et stat. nov. (Thalassiosiraceae): a bloom-forming diatom in the southeastern Gulf of Mexico Belando, M. D., A. Marin & M. Aboal: Licmophora species from a Mediterranean hyper-saline coastal lagoon (Mar Menor, Murcia, SE Spain) Reid, G.: Toxonidea langebertalotii sp. nov. A new marine diatom from the Salvages Islands Riaux-Gobin, C., R Compere, A. Y. Al-Handal & F. Straub: SEM survey of some small-sized Planothidium (Bacillariophyta) from coral sands off Mascarenes. (Western Indian Ocean) Khursevich, G. & Kociolek, J. P.: A preliminary, worldwide inventory of the extinct, freshwater fossil diatoms from the orders Thalassiosirales, Stephanodiscales, Paraliales, Aulacoseirales, Melosirales, Coscindiscales, and Biddulphiales 315 Kulikovskiy, M. S., G. K. Khursevich & A. Witkowski: Encyonema horstii sp. nov., a species of unusual valve outline from the Pleistocene deposits of Lake Baikal Witkowski, J., D. M. Harwood & M. Kulikovskiy: Observations on Late Cretaceous ma­rine diatom resting spore genera Pseudoaulacodiscus and Archaegoniothecium gen. nov. Jasprica, N., M. Caric, F Krsinic, T. Kapetanovic, M. Batistic & J. Njire: Planktonic dia­toms and their environment in the lower Neretva River estuary (Eastern Adriatic Sea, NE Mediterranean) Solak, C. N., L. Ector, A. Z. Wojtal, E. Acs & E. A. Morales: A review of investigations on diatoms (Bacillariophyta) in Turkish inland waters Bak, M. & A. Szlauer-Lukaszewska: Bioindicative potential of diatoms and ostracods in the Odra mouth environment quality assessment Starrat, S. W.: Holocene diatom flora and climate history of Medicine Lake, Northern California, USA. Medlin, L., I. Yang & S. Sato: Evolution of the Diatoms. VII. Four gene Phylogeny as­sesses the validity of celected araphid genera Lang, I. & I. Kaczmarska: Morphological and molecular identity of diatom cells retrieved from ship ballast tanks destined for Vancouver, Canada Buczko, K.: The Pantocsek diatom and photomicrograph collectio n from 19th to 21th cen­tury
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  • 77
    Call number: AWI G3-19-92469
    Type of Medium: Monograph available for loan
    Pages: 68 Seiten , Illustrationen
    Language: English , French
    Note: Content Foreword Preface 1 – The PERMAFrance network 1.1 – Objectives 1.2 – Structure and partners 1.3 – Monitoring sites 2 – Permafrost in the French mountains 2.1 – Distribution of permafrost in France 2.2 – Monitoring sites 3 – Weather and climate 3.1 – Climatic trends of the last 4 decades 3.2 – Annual weather summary 2002-2009 3.3 – Summary of nivo-meteorological conditions 4 – Surface temperature on surficial deposits 4.1 – BTS datasets 4.2 – GST datasets 5 – Geodetic measurements and surface dynamics of rock glaciers 5.1 – GPS & total station 5.2 – LIDAR 6 – Rockfalls and evolution of rockfaces 6.1 – LiDAR datasets for rockwalls in the Mont Blanc massif 6.2 – Rockfall inventories in the Mont Blanc massif 7 – References / Bibliographie , In englischer und französischer Sprache
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  • 78
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/23
    In: CRREL Report, 82-23
    Description / Table of Contents: A direct filtration, water treatment pilot plant was operated on the Kenai River at Soldotna, Alaska, during the summer of 1980. The purpose of the pilot plant operations was to determine the feasibility of the direct filtration process for removal of glacial silt. The major criterion used to determine feasibility was production of water containing less than 1.0 NTU of turbidity. For the range of raw water turbidities encountered (22-34 NTU), the pilot plant testing indicated that direct filtration was feasible and could be considered as an alternative to conventional waiter treatment plants containing sedimentation tanks.
    Type of Medium: Series available for loan
    Pages: 26 Seiten , Illustrationen
    Series Statement: CRREL Report 82-23
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric Introduction Glacial characteristics Water treatment Materials and methods Experimental design Pilot plant intake Hydrocyclone Chemical addition system Flocculation system Filtration system Pilot plant operations Coagulant chemical preparations Flow measurement Sampling Results and discussion Kenai River w ater quality Evaluation of pilot plant testing Performance of pilot plant elements Physical and chem ical variables Conclusions Recommendations Literature cited
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  • 79
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/34
    In: CRREL Report, 82-34
    Description / Table of Contents: The ice discharge through an opening in an ice control structure was documented to be a function of the floe size, ice type, ice floe conditions and vessel direction. The model data for the average ice discharge per vessel transit scaled to prototype values compared favorably with data taken at the St. Marys River ice control structure (ICS). The model results of the force measurements were also consistent with data taken at the St. Marys ICS. The dynamic loading conditions were independent of vessel direction. The dynamic loading to the structure using 3 types of ice (plastic, natural and urea-doped) showed a considerable difference in their means and standard deviations. The urea-doped ice was evaluated for dynamic loading conditions, and reasonable peak values of 3 to 5 times the mean load at each measuring position were recorded, independent of vessel direction. It appears that synthetic random ice floes may be used in model studies where ice discharge through an opening in a structure needs to be documented. This study shows the synthetic random ice floe discharge to fall reasonably within the values obtained for natural ice discharge for both rafted and non-rafted ice fields above the ICS. However, the question of whether synthetic ice can be used for analyzing force distributions and dynamic force loading criteria cannot be fully answered at this time because the load distributions of the synthetic and natural floes appear to differ.
    Type of Medium: Series available for loan
    Pages: 68 Seiten , Illustrationen
    Series Statement: CRREL Report 82-34
    Language: English
    Note: CONTENTS Abstract Preface Introduction Scope of work Ice discharge from Lake Huron into St. Clair River Water velocity profiles at Port Huron Ice conditions Physical model Basis for selection Description Instrumentation Model ice control structure Open water calibration Open water tests Experimental procedures and techniques Ice cover calibration Ice control structure orientation Analysis of ice discharge due to ship transits Natural ice Synthetic ice Forces on the ice control structure Static measurements Dynamic force measurements Potential additional shear stresses Anticipated ice conditions with ICS Conclusions Literature cited Appendix A. Application of model results Appendix B. Suggested additional studies Appendix C. Derivation of ice discharge
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  • 80
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/9
    In: CRREL Report, 83-9
    Description / Table of Contents: Recent observations of shore ice pile-up and ride-up along the coast of the Alaska Beaufort Sea are presented. Information is given to show that sea ice movement on shore has overridden steep coastal bluffs and has thrust inland over 150 m, gouging into and pushing up mounds of beach sand, gravel, boulders and peat and, inland, the tundra material. The resulting ice scar morphology was found to remain for tens of years. Onshore ice movements up to 20 m are relatively common, but those over 100 m are very infrequent. Spring is a dangerous time, when sea ice melts away from the shore, allowing ice to move freely. Under this condition, driving stresses of less than 100 kPa can push thick sea ice onto the land.
    Type of Medium: Series available for loan
    Pages: v, 59 Seiten , Illustrationen
    Series Statement: CRREL Report 83-9
    Language: English
    Note: Contents Abstract Preface Introduction Winter 1979-80 observations Winter 1980-81 and summer 1981 observations Winter 1981-82 and summer 1982 observations Old ice ride-up features Discussion Literature cited Appendix A. The boulder rampart and rock littered shore west of Konganevik Pt. Appendix B. Site location maps
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  • 81
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/42
    In: CRREL Report, 82-42
    Description / Table of Contents: A high-resolution impulse radar profiling system was evaluated for 1) detecting the existence of sea ice which coring has revealed to exist on the bottom of the Ross Ice Shelf at Site J-9, 2) detecting the preferred horizontal c-axis azi-muthal direction of the sea ice crystals, using the voltage amplitude of the radar reflection from the sea ice bottom, and 3) determining the direction of the currents under an Antarctic ice shelf. A field program was conducted consisting of a surface radar survey on the Ross Ice Shelf at Site J-9 and surface and airborne radar profiling on the McMurdo Ice Shelf. The CRREL impulse radar system, operating at a center frequency of either 80 MHz or 20 MHz, was unable to detect the shelf bottom at Site J-9, which drilling revealed to be 416 m below the snow surface. The radar system was used to profile the McMurdo Ice Shelf both from the snow surface and from the air; a shelf thickness of about 275 m was easily detected. Theoretical considerations indicate that the bulk conductivity of the ice shelf at Site J1-9 was higher than originally anticipated, and this limited the radar sounding depth to about 405 m when operating at a frequency of 20 MHz.
    Type of Medium: Series available for loan
    Pages: iv, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 82-42
    Language: English
    Note: CONTENTS Abstract Introduction Profiling system Theoretical considerations Field program Discussion Literature cited
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  • 82
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/41
    In: CRREL Report, 82-41
    Description / Table of Contents: Many of the important factors influencing the choice of appropriate aquifer test procedures are presented. The concepts of bias, accuracy and spatial variabil­ity are explained. The definitions of a number of aquifer parameters are devel­oped from basic principles demonstrating the underlying assumptions and limita­tions. The parameters considered are: piezometric head, hydraulic conductiv­ity/intrinsic permeability, flow direction, specific discharge magnitude, transmissivity, volumetric flow rate, total porosity, effective porosity, aver­age linear velocity, storage coefficient, specific yield, dispersion coefficient-aquifer dispersivity. For each parameter several techniques are described, evaluated and ranked in terms of perceived potential accuracy, simplicity and value to contaminant transport studies. It must be stressed, however, that the evaluations are based principally upon theoretical grounds, and not upon actual conduct of the described procedures.
    Type of Medium: Series available for loan
    Pages: iv, 111 Seiten , Illustrationen
    Series Statement: CRREL Report 82-41
    Language: English
    Note: CONTENTS Abstrac Preface Introduction Purpose Scope Concept of accuracy Test selection Definition of parameters Piezometric head Use of piezometers Hydraulic conductivity Flow direction Specific discharge magnitude Transmissivity Volumetric flow rate Porosity Average linear velocity Storage coefficient-specific yield Aquifer dispersivity Parameter estimation techniques Piezometric head Hydraulic conductivity Direction and magnitude of specific discharge vector Transmissivity Volumetric flow rate Total porosity Average linear velocity Storage coefficient Specific yield Effective porosity Aquifer dispersivity-dispersion coefficients Conclusions Literature cited
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  • 83
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/36
    In: CRREL Report, 82-36
    Description / Table of Contents: Camp construction and drilling activities in 1950 at the East Oumalik drill site in northern Alaska caused extensive degradation of ice-rich, perennially frozen silt and irreversible modification of the upland terrain. In a study of the long-term degradational effects at this site, the near-surface geology was defined by drilling and coring 76 holes (maximum depth of 34 m) in disturbed and undisturbed areas and by laboratory analyses of these cores. Terrain disturbances, including bulldozed roads and excavations, camp structures and off-road vehicle trails, were found to have severely disrupted the site's thermal regime. This led to a thickening of the active layer, melting of the ground ice, thaw subsidence and thaw consolidation of the sediments. Slumps, sediment gravity flows and collapse of materials on slopes bounding thaw depressions expanded the degradation laterally, with thermal and hydraulic erosion removing materials as the depressions widened and deepened with time. Degradational processes became less active after thawed sediments thickened sufficiently to slow the increase in the depth of thaw and permit slope stabilization. The site's terrain is now irregular and hummocky with numerous depressions. Seasonal thaw depths are deeper in disturbed areas than in undisturbed areas and reflect the new moisture conditions and morphology. The severity of disturbance is much greater at East Oumalik than at another old drill site, Fish Creek. The difference results primarily from differences in the physical properties of the sediments, including the quantity and distribution of ground ice.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 82-36
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Methodology Geologic setting Camp construction and occupation Types of disturbance Degradational processes and the effective area of impact Areal effects of disturbance Topography Groundwater, surface water and drainage Sediment properties and near-surface stratigraphy Surficial processes Depth of thaw Comparison to Fish Creek Discussion and conclusions Literature cited
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  • 84
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/32
    In: CRREL Report, 84-32
    Description / Table of Contents: Orwell Lake, in west-central Minnesota, is a flood-control, water-management reservoir first impounded in 1953. Subsequent erosion of the shoreline and a lack of knowledge of slope erosion processes in this region prompted this study to identify and quantify the processes there. The processes were measured at selected sites between June 1980 and June 1983. Erosion of the banks is primarily caused by three processes: rain, frost thaw, and waves. The first two processes tend to move sediment to the base of the steep slopes, forming 4 relatively gentle surface of accumulation. Wave action then tends to move this sediment into the lake. Analysis of the data collected over three years has confirmed that wave action is the dominant erosion process, providing almost 77% of the erosion during the 1981-82 study year. During the 1981 high pool level, 2,089 Mg of sediment, mostly colluvium, was removed from the lower slopes by wave action striking the 1.62 km of eroding shoreline. More than 4,300 Mg was eroded by waves accompanying the higher pool levels of 1982., During years in which the pool level does not exceed 325.5 m in elevation, the colluvium slope builds up at the expense of the steeper slope. But during successive years with higher pool levels, the resulting thin colluvium is quickly eroded. Erosion of the primary sediment, a compact till, then occurs, forming the S typical nearly vertical banks. In winter the upland surface adjacent to the lake freezes to a depth of between 1 and 2 m, depending on the surface temperature, the mow cover, and the distance from exposed banks. In late winter soil aggregates, released by the sublimation of interstitial ice within the banks, begin to accumulate at the base of the slopes, often veneering snowbanks there. Once thaw begins, slab failure of bank sediment is followed by mudflows and earthflows. Thaw failure at Orwell Lake in the winter of 1981-82 accounted for over 20% of the erosion; in the spring of 1982, 824 Mg was eroded by this process and 746 Mg the following spring. Such slope failure is most intense along north-facing banks and considerably less intense on south-facing banks, where more effective desiccation and sublimation reduce the soil moisture content. Summer rainfall is responsible for the remaining 3% of the total erosion, amounting to 102 Mg in 1981 and 208 Mg in 1982. Because the banks are steep and relatively short, rainwash is infrequent; rainsplash is the most consistent process during the summer, but the infrequent storms during which rainwash occurscause greater total erosion. Erosion by rain has increased in each of the past three summers, largely because of increased precipitation. Infrequent massive slope failures (slumps) have occurred at the east end of the lake where a buried clay rich unit is stratigraphically and topographically positioned to favor such failures. Drought years followed by heavy spring rains probably will result in additional slope failures of this type at the east end. Unless changes are made, the banks at Orwell Lake will continue to recede. Restriction of the pool level to less than 325.5-m elevation is the least expensive solution to the problem.
    Type of Medium: Series available for loan
    Pages: ix, 110 Seiten , Illustrationen
    Series Statement: CRREL Report 84-32
    Language: English
    Note: CONTENTS Abstract Preface Summary Chapter 1. Introduction Location Purpose of study Previous work Chapter 2. Methodology Geology Overland erosion Wave erosion Frost penetration and heave Thaw failure Bank recession Ground water Soil moisture Chapter 3. Results Geology Geotechnical properties Overland erosion Wave erosion Freeze-thaw phenomena Ground water fluctuations Other slope failures Chapter 4. Discussion Overland erosion Wave erosion Thaw failure Universal soil loss equation Chapter 5. Summary and conclusions Techniques Erosion processes at Orwell lake Bank recession Literature cited Appendix A1: Average cumulative change of surface at erosion stations #2-12, 1980-81 Appendix A2: Cumulative net changes at overland erosion stations #1-12, 1980-81 Appendix A3: Cumulative net changes at overland erosion stations #1 -12, 198 1-82 Appendix A4: Cumulative average erosion at overland erosion stations #1-12, 1980-81 Appendix AS: Cumulative average erosion at overland erosion stations #1-12, 1981-82 Appendix A6: Cumulative average erosion at overland erosion stations #1 -1 2A, 1982 Appendix B: Dimensions of erosion sections, Orwell Lake, Minnesota Appendix C: Piezometer installation data, Orwell Lake, Minneso
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  • 85
    Monograph available for loan
    Monograph available for loan
    New York : Springer
    Call number: PIK N 531-19-92656
    Description / Table of Contents: In this book, plant biology is considered from the perspective of plants and their surrounding environment, including both biotic and abiotic interactions. The intended audience is undergraduate students in the middle or final phases of their programs of study. Topics are developed to provide a rudimentary understanding of how plant-environment interactions span multiple spatiotemporal scales, and how this rudimentary knowledge can be applied to understand the causes of ecosystem vulnerabilities in the face of global climate change and expansion of natural resource use by human societies. In all chapters connections are made from smaller to larger scales of ecological organization, providing a foundation for understanding plant ecology. Where relevant, environmental threats to ecological systems are identified and future research needs are discussed. As future generations take on the responsibility for managing ecosystem goods and services, one of the most effective resources that can be passed on is accumulated knowledge of how organisms, populations, species, communities and ecosystems function and interact across scales of organization. This book is intended to provide some of that knowledge, and hopefully provide those generations with the ability to avoid some of the catastrophic environmental mistakes that prior generations have made.--
    Type of Medium: Monograph available for loan
    Pages: XXIII, 659 Seiten , Illustrationen, Diagramme, Tabellen , 24 cm
    ISBN: 9781461475002
    Series Statement: The plant sciences 8
    Language: English
    Note: Contents: Plant-environment interactions across multiple scales -- Plant biodiversity and population dynamics -- Assembly of plant communities -- Plant pollination and dispersal -- Plant phenotypic expression in variable environments -- Evolutionary ecology of chemically mediated plant-insect interactions -- Plant-microbe interactions -- Patterns and controls of terrestrial primary production in a changing world -- Ecology of tropical rain forests -- Ecology of temperate forests -- Plants in deserts -- Plants in alpine environmnets -- Plants in arctic environments -- Grassland ecology -- Coastal wetland ecology and challenges for environmental management -- Near-coastal seagrass ecosystem -- Ecology of marine phytoplankton -- Plants in changing environmental conditions of the anthropocene -- Plant influences on atmospheric chemistry -- Biofuel development from cellulosic sources -- Plant ecology and sustainability science
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  • 86
    Monograph available for loan
    Monograph available for loan
    San Francisco, Calif. : Berrett-Koehler
    Call number: PIK B 160-19-93083
    Description / Table of Contents: On the surface: symptoms of death and rebirth -- Structure: systemic disconnects -- Transforming thought: the matrix of economic evolution -- Source: connecting to intention and awareness -- Leading the personal inversion: from me to we -- Leading the relational inversion: from ego to eco -- Leading the institutional inversion: toward eco-system economies -- Leading from the emerging future: now
    Type of Medium: Monograph available for loan
    Pages: 287 Seiten , Illustrationen, Diagramme , 23 cm
    Edition: 1. ed.
    ISBN: 9781605099262 (pbk.)
    Series Statement: A BK currents book
    Language: English
    Note: On the surface: symptoms of death and rebirthStructure: systemic disconnects -- Transforming thought: the matrix of economic evolution -- Source: connecting to intention and awareness -- Leading the personal inversion: from me to we -- Leading the relational inversion: from ego to eco -- Leading the institutional inversion: toward eco-system economies -- Leading from the emerging future: now..
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  • 87
    Monograph available for loan
    Monograph available for loan
    Lund : Studentliteratur
    Call number: PIK P 120-20-93480
    Type of Medium: Monograph available for loan
    Pages: 586 Seiten , Illustrationen, Diagramme
    ISBN: 9789144085302
    Language: English
    Note: Preface ; Chapter 1 Introduction ; Chapter 2 The fundamental idea of district heating ; Chapter 3 Energy, heat, and cold markets ; Chapter 4 Heat and cold demands ; Chapter 5 Heat and cold loads ; Chapter 6 Heat and cold supply ; Chapter 7 Environmental impact and opportunities ; Chapter 8 Heat and cold distribution technology ; Chapter 9 Substations ; Chapter 10 System functioning ; Chapter 11 Economics and planning ; Chapter 12 District heating and cooling development ; Chapter 13 Organisation ; Chapter 14 Information sources
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  • 88
    Call number: AWI Bio-20-93529
    Description / Table of Contents: The Arctic is considered as a focal region in the ongoing climate change debate. The currently observed and predicted climate warming is particularly pronounced in the high northern latitudes. Rising temperatures in the Arctic cause progressive deepening and duration of permafrost thawing during the arctic summer, creating an ‘active layer’ with high bioavailability of nutrients and labile carbon for microbial consumption. The microbial mineralization of permafrost carbon creates large amounts of greenhouse gases, including carbon dioxide and methane, which can be released to the atmosphere, creating a positive feedback to global warming. However, to date, the microbial communities that drive the overall carbon cycle and specifically methane production in the Arctic are poorly constrained. To assess how these microbial communities will respond to the predicted climate changes, such as an increase in atmospheric and soil temperatures causing increased bioavailability of organic carbon, it is necessary to investigate the current status …
    Type of Medium: Dissertations
    Pages: 146 Blätter , Illustrationen
    Language: English
    Note: Table of content Abstract Zusammenfassung 1. Introduction 1.1. Motivation 1.2. Scientific Background 1.2.1. Permafrost in arctic environments 1.2.2. Carbon storage and emission in arctic environments 1.2.3. Methane cycling in arctic environments 1.3. Study Sites 1.3.1. Lena-Delta, Siberia 1.3.2. El’gygytgyn Crater Lake, Chukotka 1.4. Objectives and approach 1.5. Thesis organization 1.6. Summary of the included manuscripts and contribution of the co-authors 1.6.1. Response of methanogenic archaea to Late Pleistocene and Holocene climate changes in the Siberian Arctic 1.6.2. Response of microbial communities to landscape and climatic changes in a terrestrial permafrost sequence of the El’gygytgyn crater, Far East Russian Arctic 1.6.3. Glacial-interglacial microbial community dynamics in Middle Pleistocene sediments in the Lake El’gygytgyn, Far East Russian Arctic 2. Response of methanogenic archaea to Late Pleistocene and Holocene climate changes in the Siberian Arctic 2.1. Abstract 2.2. Introduction 2.3. Materials and Methods 2.3.1. Study site 2.3.2. Permafrost drilling and sample preparation 2.3.3. Sediment properties 2.3.4. Potential methane production rates 2.3.5. Lipid biomarker analysis 2.3.6. Detection of archaeol and isoprenoid GDGTs 2.3.7. Detection of PLFAs and PLELs 2.3.8. DNA extraction and polymerase chain reaction (PCR) amplification 2.3.9. Phylogenetic analysis 2.4. Results and Discussion 2.4.1. Methane profile of the Kurungnakh permafrost sequence 2.4.2. Signals of living microbial communities in the Kurungnakh permafrost sequence 2.4.3. Reconstruction of past microbial communities in the Kurungnakh permafrost sequence 2.4.4. Climate impact on the distribution of microbial communities in the Kurungnakh permafrost sequence 2.4.5. Climatic impact on the composition of methanogenic communities in the Kurungnakh permafrost sequence 2.5. Conclusion 2.6. Acknowledgement 3. Response of microbial communities to landscape and climatic changes in a terrestrial permafrost sequence of the El’gygytgyn crater, Far East Russian Arctic 3.1. Abstract 3.2. Introduction 3.3. Materials and Methods 3.3.1.Study site 3.3.2. Drilling and sample material 3.3.3. Sediment properties 3.3.4. Lipid biomarker analysis 3.3.5. Detection of glycerol dialkyl glycerol tetraethers (GDGTs) and archaeol 3.3.6. Detection of phospholipid fatty acids (PLFA) 3.3.7. Deoxyribonucleic acid (DNA) extraction and amplification 3.3.8. Quantitative PCR analysis of archaeal and bacterial small sub unit (SSU) rRNA genes 3.3.9. Phylogenetic analysis 3.4. Results 3.4.1. TOC-contents 3.4.2. Distribution of glycerol dialkyl glycerol tetraethers (GDGTs) and archaeol 3.4.3. Distribution of phospholipid fatty acids (PLFA) 3.4.4. Composition of archaeol and isoprenoid GDGTs 3.4.5. Quantification of bacterial and archaeal genes 3.4.6. Analysis of methanogenic community fingerprints 3.5. Discussion 3.5.1. Microbial communities in subaquatic deposits 3.5.2. Microbial communities in subaerial deposits 3.5.3. Microbial succession in the Holocene sequence of Lake El’gygytgyn permafrost 3.6.Conclusion 3.7. Acknowledgements 4. Glacial-interglacial microbial community dynamics in Middle Pleistocene sediments in the Lake El’gygytgyn, Far East Russian Arctic 4.1. Abstract 4.2. Introduction 4.3. Materials and Methods 4.3.1. Study site 4.3.2. Drilling and sample preparation 4.3.3. Sediment properties 4.3.4. Lipid biomarker analyses 4.3.5. Deoxyribonucleic acid (DNA) extraction and quantitative polymerase chain reaction (qPCR) 4.3.6. PCR amplification of methanogenic SSU rRNA genes 4.4. Results 4.4.1. Sedimentary TOC and biogenic silica concentration 4.4.2. Quantification of bacterial and archaeal genes 4.4.3. Quantification and composition of lipid biomarkers 4.4.4. Potential methane production 4.4.5. Methanogenic community composition 4.5. Discussion 4.6. Acknowledgements 5. Synthesis 5.1. The reaction of microbial communities to past climatic change in the Arctic 5.2.The response of microbial communities to carbon composition and availability 5.3. Implications from this study for future research 6. Data collection 6.1. Manuscript I: Response of methanogenic archaea to Late Pleistocene and Holocene climate changes in the Siberian Arctic 6.1.1. Sediment properties 6.1.2. Isoprenoid glycerol dialkyl glycerol tetraethers and archaeol 6.1.3. Branched glycerol dialkyl glycerol tetraethers 6.1.4. Phospholipid ester and ether lipids (summary) 6.2. Manuscript II: Response of microbial communities to landscape and climatic changes in a terrestrial permafrost sequence of the El’gygytgyn crater, Far East Russian Arctic 6.2.1. Sediment properties and gene quantifications 6.2.2. Phospholipid fatty acids composition 6.2.3. Isoprenoid glycerol dialkyl glycerol tetraethers and archaeol 6.2.4. Branched glycerol dialkyl glycerol tetraethers 6.3. Manuscript III: Glacial-interglacial microbial community dynamics in Middle Pleistocene sediments in the Lake El’gygytgyn, Far East Russian Arctic 6.3.1. Sediment properties and gene quantifications 6.3.2. Isoprenoid glycerol dialkyl glycerol tetraethers and archaeol 6.3.3. Branched glycerol dialkylglycerol tetraethers 7. References 8. Final thoughts and acknowledgements 9. Curriculum vitae 10.Erklärung
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  • 89
    Call number: AWI Bio-20-93530
    Description / Table of Contents: The Arctic tundra, covering approx. 5.5 % of the Earth’s land surface, is one of the last ecosystems remaining closest to its untouched condition. Remote sensing is able to provide information at regular time intervals and large spatial scales on the structure and function of Arctic ecosystems. But almost all natural surfaces reveal individual anisotropic reflectance behaviors, which can be described by the bidirectional reflectance distribution function (BRDF). This effect can cause significant changes in the measured surface reflectance depending on solar illumination and sensor viewing geometries. The aim of this thesis is the hyperspectral and spectro-directional reflectance characterization of important Arctic tundra vegetation communities at representative Siberian and Alaskan tundra sites as basis for the extraction of vegetation parameters, and the normalization of BRDF effects in off-nadir and multi-temporal remote sensing data. Moreover, in preparation for the upcoming German EnMAP (Environmental Mapping and Analysis Program…
    Type of Medium: Dissertations
    Pages: circa 330 Seiten , Illustrationen, Diagramme
    Language: English
    Note: TABLE OF CONTENTS Abstract Kurzfassung Table of Contents List of Figures List of Tables List of Abbreviations List of Symbols 1 INTRODUCTION 1.1 Background and Scientific Setting 1.2 Motivation and Research Questions 1.3 Structure of Thesis 2 FUNDAMENTALS OF HYPERSPECTRAL AND SPECTRO-DIRECTIONAL REMOTE SENSING 2.1 Hyperspectral Remote Sensing of Vegetation 2.2 Spectro-Directional Remote Sensing of Vegetation 2.3 The EnMAP Satellite System 2.4 Spectro-Goniometer Systems for the Ground-Based Measurement of BRDF Effects 3 THE TUNDRA PERMAFROST STUDY LOCATIONS AND THEIR ENVIRONMENT 3.1 The Eurasia Arctic Transect (EAT) 3.1.1 Geological and Climatic Setting 3.1.2 Vegetation 3.2 The North American Arctic Transect (NAAT) 3.2.1 Geological and Climatic Setting 3.2.2 Vegetation 4 OBSERVATIONS AND METHODOLOGY 4.1 Observations Used for this Study 4.1.1 The ECI-GOA-Yamal 2011 Expedition 4.1.2 The EyeSight- NAAT-Alaska 2012 Expedition 4.1.3 Data Used for Hyperspectral Characterization of Arctic Tundra 4.1.4 Data Used for Spectro-Directional Characterization of Arctic Tundra 4.2 Methodology Used for Field Work and Data Analysis 4.2.1 Field Spectroscopy and Hyperspectral Data Analysis 4.2.2 Considerations for the Field Spectro-Goniometer Measurements and the Spectro-Directional Data Analysis 5 DEVELOPMENT AND PRECOMMISSIONING INSPECTION OF THE MANTIS FIELD SPECTRO-GONIOMETER 5.1 Introduction 5.2 Theoretical Background 5.3 Description of the Field Spectro-Goniometer System 5.3.1 Construction Schedule 5.3.2 Description of the Field Spectro-Goniometer Platform (ManTIS) 5.3.3 Sensor Configuration of the AWI ManTIS Field Spectro-Goniometer 5.3.4 Measurement Strategy 5.3.5 Software for Semi-Automatic Control 5.4 Error Assessment 5.4.1 Radiometrical Accuracy 5.4.2 Pointing Accuracy 5.4.3 Ground Instantaneous Field of View and Sensor Self-Shadowing 5.4.4 Temporal Illumination Changes and Environmental Influences 5.5 Data Analysis 5.5.1 Data Processing 5.5.2 Data Visualization 5.6 Performance of ManTIS Field Spectro-Goniometer in the Field 5.6.1 Test Site and Experiment Setup 5.6.2 Results and Discussion 5.7 Conclusions and Outlook 6 HYPERSPECTRAL REFLECTANCE CHARACTERIZATION OF LOW ARCTIC TUNDRA VEGETATION 6.1 Introduction 6.2 Material & Methods 6.2.1 Study Area 6.2.2 Environmental Gradients/Zones and Vegetation Description 6.2.3 Data Acquisition and Pre-Processing 6.2.4 Data Analysis 6.3 Results 6.3.1 The Zonal Climate Gradient 6.3.2 Acidic Versus Non-Acidic Tundra (Soil pH Zones) 6.3.3 The Toposequence at Happy Valley (Subzone E) 6.3.4 The Soil Moisture Gradient at Franklin Bluffs (Subzone D) 6.4 Discussion 6.4.1 Overview of Field Characterization and Spectral Properties along the Gradients 6.4.2 Performance of Spectral Metrics and Vegetation Indices 6.5 Conclusions 7 RESULTS OF THE SPECTRO-DIRECTIONAL REFLECTANCE INVESTIGATIONS 7.1 Overview of the Spectro-Directional Reflectance Characteristics of Low Arctic Tundra Vegetation 7.1.1 Representativeness of the Study Plots Representing Tundra Vegetation 7.1.2 Vaskiny Dachi – Bioclimate Subzone D 7.1.3 Happy Valley – Bioclimate Subzone E 7.1.4 Franklin Bluffs – Bioclimate Subzone D 7.2 Influence of High Sun Zenith Angles on the Reflectance Anisotropy 7.2.1 MAT (Happy Valley) 7.2.2 MNT (Franklin Bluffs) 7.3 Variability in Multi-Angular Remote Sensing Products of Low Arctic Tundra Environments 7.3.1 Spectro-Directional Variability of Different Low Arctic Plant Communities 7.3.2 Spectro-Directional Variability under Varying Sun Zenith Angles 8 DISCUSSION 8.1 The Hyperspectral Reflectance Characteristics of Tundra Vegetation in Context of the Spectro-Goniometer Measurements 8.2 Applicability of the ManTIS Field Spectro-Goniometer System 8.3 The Spectro-Directional Reflectance Characteristics of Tundra Vegetation 8.4 Variability in Reflectance Anisotropy at High Sun Zenith Angles 8.5 Applicability of Multi- Angular Remote Sensing Products for Arctic Tundra Environments 9 CONCLUSIONS & OUTLOOK Acknowledgments References Appendix Table of Contents of the Appendix References of the Appendix Statutory Declaration / Eidesstattliche Erklärung
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  • 90
    Call number: PIK B 110-20-93585
    Type of Medium: Monograph available for loan
    Pages: xxxii, 304 Seiten , 21 cm
    Edition: Paperback first published in 2014
    ISBN: 9780465085958 , 9780465029471
    Language: English
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  • 91
    Call number: ZSP-201-82/19
    In: CRREL Report, 82-19
    Description / Table of Contents: Under proper design and management, a forest ecosystem in the central United States should renovate municipal wastewater as long or longer than conventional agricultural systems, especially when design limitations are hydraulic loading rate, heavy metals, P and N. Forest systems require smaller buffer zones than agricultural systems and lower sprinkler pressures. Immature forests are better wastewater renovators than mature forests.
    Type of Medium: Series available for loan
    Pages: iv, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 82-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Forest systems design Pretreatment Distribution systems Public health considerations Buffer zone requirements Toxic effects Public access Hydraulic loading Nutrient uptake and loading Introduction Nitrogen Phosphorus Trace metals Design considerations Hydraulic loading rates Nitrogen loading rates Forest management options Reforestation Existing forest ecosystems Short term rotation plantations Potential long term effects on forest ecosystems Longevity of forest systems Consequences of overloading Soil chemical, physical and hydrologic properties Productivity Summary Literature cited
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  • 92
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/18
    In: CRREL Report, 82-18
    Description / Table of Contents: Snow and ice control on highways has come to rely heavily on the use of sodium chloride to maintain a trafficable surface for unimpeded movement. Empirical approaches have led to a wide range of application rates, some clearly excessive, but justified on the ground of safety and expediency. The combination of environmental degradation from the huge quantities of salt entering the environment, along with the increased cost of salt itself and the cost of its application have spurred the search for more precise knowledge of the proper amount of salt to apply to a pavement, considering a range of environmental, traffic and chemical parameters. Since controlled tests in the field are extremely difficult to make, a circular test track of three test pavements, dense-graded asphaltic concrete (DGA), open-graded asphaltic concrete (DGA) and portland cement concrete (PCC), was constructed in a coldroom. Natural snow and ice were applied to the pavements and an instrumented slipping wheel was driven over the surfaces to generate frictional forces. These forces were measured and then used to evaluate the response to salt application with time for three test temperatures. OGA had the lowest friction values at a temperature near the freezing point, but higher initial values or more rapidly increasing values than DGA and PCC following salt application at the two lower temperatures. Optimum application rate of salt on PCC and DGA lies between 100 and 300 lb/lane mile (LM), and a higher rate resulted in slight or no improvement in friction. DGA showed anomalous results: lower friction for 300 Ib/LM and higher friction for both 100 and 500 Ib/LM.
    Type of Medium: Series available for loan
    Pages: vi, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 82-18
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Background Approach Influencing factors Field factors Laboratory Laboratory trafficking tests Force measurement and coefficient of friction Test tire slip Surface friction gauge Test procedure British portable tester Experimental results Conclusions Recommendations Literature cited Appendix A. Test pavements Appendix B. Pennsylvania State University field study Appendix C. Rochester Institute of Technology field study
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  • 93
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/16
    In: CRREL Report, 82-16
    Description / Table of Contents: Abstract: A dynamic-thermodynamic sea ice model which employs a viscous-plastic constitutive law has been applied to the East Greenland area. The model is run on a 40-km spatial scale at 1/4-day time steps for a 60-day period with forcing data beginning on 1 October 1979. Results tend to verify that the model predicts reasonable thicknesses and velocities within the ice margin. Thermodynamic ice growth produces excessive ice extent, however, probably due to inadequate parameterization of oceanic heat flux. Ice velocities near the free ice edge are also not well simulated, and preliminary investigations attribute this to an improper wind field in this area. A simulation which neglects ice strength, effectively damping ice interaction with itself and allowing no resistance to deformation, produces excessive ice drift toward the coast and results in unrealistic nearshore thicknesses. A dynamics-only simulation produced reasonable results, including a more realistic ice extent, but the need for proper thermodynamics is also apparent. Other simulations verify that ice import from the Arctic Basin, and ice transport due to winds and currents, were also important components in the model studies.
    Type of Medium: Series available for loan
    Pages: v, 40 Seiten , Illustrationen , 29 cm
    Series Statement: CRREL Report 82-16
    Language: English
    Note: CONTENTS Abstract Preface Introduction Model description and application Results and discussion Wind and current fields Standard simulation Thermodynamic simulation Zero ice strength Zero ice import Zero currents Modified currents Zero winds Dynamics simulation Summary and concluding remarks Literature cite
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  • 94
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/14
    In: CRREL Report, 82-14
    Description / Table of Contents: A comparative study was made of design criteria and analytical methods for footings and pile foundations on perma­frost employed in U.S.S.R. Design Code SNiP II-18-76 (1977) and U.S. Army Cold Regions Research and Engineering Laboratory Special Report 80-34 developed in the early 1970's by the U.S. Army Corps of Engineers and published in 1980. The absence of adequate constitutive equations for frozen soils and of rigorous solutions of the boundary prob­lems has made it necessary to incorporate (explicitly or implicitly) various safety factors in the foundation analyses. From the review it is concluded that the principal difference between these practices is in the assessment and application of appropriate values of safety factors, which leads to a substantial discrepancy in the dimensions and cost of footings and pile foundations in permafrost.
    Type of Medium: Series available for loan
    Pages: iv, 20 Seiten , Illustrationen
    Series Statement: CRREL Report 82-14
    Language: English
    Note: CONTENTS Abstract Preface Introduction U.S.S.R. system of standards U.S.S.R. Design Code SNiP 11-18-76 (1977) subsoils and foundations on permafrost General regulations Classification of soils Basic regulations for foundation design Analysis of subsoils and foundations Design of foundations for special soil conditions, and appendices SR 80-34 (1980) design and construction of foundations in areas of deep seasonal frost and permafrost General information Foundation design Conclusions Literature cited
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  • 95
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/13
    In: CRREL Report, 82-13
    Description / Table of Contents: Frost heave is analyzed for the common case in which some ice penetrates the soil. In this situation, heave is due to the accumulation of soil-free ice just within the frozen zone, behind a frozen fringe of finite thickness. Heat and mass transport within and across that fringe are crucial processes in the dynamics of heave. This analysis concentrates on activity within the fringe, also connecting that activity to heat and mass flows in the more frozen and unfrozen zones. Each component in a set of governing differential equations is developed from rational physics and thermodynamics, using previous experimental work. It is assumed that the soil ice grows through interconnected interstices; hence it constitutes and can move as a rigid body. When the assumption is translated into mathematical terms, it completes the governing equations. The model resulting from these considerations is a one-dimensional finite element computer program that solves the equations for arbitrary initial and boundary conditions. The model is used to simulate the heave history of a hypothetical soil column frozen unidirectionally and subjected to a surcharge. The results are gratifying in that they predict qualitatively the characteristics of numerous laboratory observations. Some questions about the completeness of the theory remain, and strict verification of the model awaits further experimentation and better parameter identification.
    Type of Medium: Series available for loan
    Pages: iii, 11 Seiten , Illustrationen
    Series Statement: CRREL Report 82-13
    Language: English
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  • 96
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/12
    In: CRREL Report, 82-12
    Description / Table of Contents: From a high-quality set of velocity, temperature, and humidity profiles collected upwind and downwind of a step change in surface roughness, temperature, and moisture, we have calculated upwind and downwind values of the heat fluxes and friction velocity. The surface change is from smooth to rough; upwind, the sensible heat flux is upward and the latent heat flux is zero; downwind, the surface is well-watered so that the latent heat flux is upward while the sensible heat flux is downward. The downwind latent heat flux in this fetch-limited flow obeys NL=0.08 Rx 0.76 where NL is the latent heat Nusselt number and Rx is the fetch Reynolds number, a parameter for characterizing fetch-limited flows. Because this relation is virtually the same as one found to describe the sensible heat and condensate fluxes over arctic leads, we conclude that the Nusselt numbers nondimensionalizing scalar fluxes are the same for a given fetch Reynolds number when boundary conditions are similar.
    Type of Medium: Series available for loan
    Pages: vii, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 82-12
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Upwind: flux gradient method Downwind: integral method ResulIts Energy budget Latent heat flux Surface stress Downwind humidity profiles Discussion Conclusions Literature cited
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  • 97
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/11
    In: CRREL Report, 82-11
    Description / Table of Contents: The purpose of this investigation was to provide data to be used in evaluating the effects of winter navigation on pro­cesses that cause bank erosion. The specific objectives were to document bank conditions and erosion sites along the rivers, to monitor and compare the amounts of winter and summer bank recession and change, and to estimate the amount of recession that occurred prior to winter navigation. Shoreline conditions and bank recession were documented during field surveys each spring and fall. Bank changes were evaluated by comparison to observations from a previous survey. Aerial photointerpretation was done to estimate the amount of bank recession that occurred prior to winter navigation. Three hundred forty-five miles of river shoreline were surveyed. Banks were eroding along 21.5 miles (6.2%). The common types of bank failures were soil falls (sloughing) and block sliding and slumping. The erosion along approxi­mately 15 miles (70%) of the 21.5 miles was occurring along reaches not bordering winter navigation channels.
    Type of Medium: Series available for loan
    Pages: v, 75 Seiten , Illustrationen
    Series Statement: CRREL Report 82-11
    Language: English
    Note: CONTENTS Abstract Preface Introduction Previous investigations Approach Shoreline conditions Bank changes Bank recession before winter navigation St. Marys River Bank changes Bank recession before winter navigation St. Clair River Bank changes Bank recession before winter navigation Detroit River Bank changes Bank recession before winter navigation St. Lawrence River Bank changes Historical bank recession Summary and conclusions Literature cited Appendix A: St. Marys River Appendix B: St. Clair River Appendix C: Detroit River Appendix D: St. Lawrence River
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  • 98
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/10
    In: CRREL Report, 82-10
    Description / Table of Contents: Dielectric measurements have been performed on silt and sand samples from permafrost areas using Time Domain Reflectometry. The sample temperatures were varied from +25 °C to -25 °C, and volumetric water content was varied between oven-dry and 0.55 gH2O/cm3. The data were processed for frequencies between 0.1 and 5.0 GHz. The results show a constant K' and a low K' for frequencies up to 1 GHz. A frequency dependence seen on the data above 2 GHz is probably the result of unfrozen, adsorbed water. At moisture levels near saturation at all temperatures, these soils have excellent propagation characteristics for ground-probing radar operating below 0.3 GHz. Massive ice should be easily detectable in permafrost within a few degrees of 0 °C.
    Type of Medium: Series available for loan
    Pages: 7 Seiten , Illustrationen
    Series Statement: CRREL Report 82-10
    Language: English
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  • 99
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/8
    In: CRREL Report, 80-8
    Description / Table of Contents: This report presents the results of the tests on the new U.S. Coast Guard 140-ft icebreaker Katmai Bay (WTGB-101) in the level plate ice and brash ice in Whitefish Bay and the St. Marys River. The results indicate that the vessel can penetrate 22 in. of level freshwater ice with 2-3 in. of snow cover. It can also penetrate up to 48 in. of brash ice in a continuous mode and at least 30 in. of plate ice by backing and ramming. The installed bubbler system decreased the required power of the vessel from 10 to 30% in brash ice and 25 to 35% in level ice. The low friction coating appears to be effective in decreasing the friction factor when it remains intact; when it peels off it appears to make conditions worse than plain paint. An average dynamic friction factor of 0.15 could be used over the entire hull for these tests.
    Type of Medium: Series available for loan
    Pages: iv, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 80-8
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion table Introduction Roughness and friction measurements Level plate ice performance Brash ice performance Ramming icebreaking performance Analysis of the data Propulsion efficiency in ice Regression analysis Conclusions and recommendations Literature cited
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  • 100
    Call number: ZSP-201-80/10
    In: CRREL Report, 80-10
    Description / Table of Contents: A mathematical model of coupled heat and moisture flow in soils has been developed. The model includes algorithms for phase change of soil moisture and frost heave and permits several types of boundary and initial conditions. The finite element method of weighted residual (Galerkin procedure) was chosen to simulate the spatial regime and the Crank-Nicholson method was used for the time domain portion of the model. To facilitate evaluation of the model, the heat and moisture fluxes were essentially decoupled; moisture flux was then simulated accurately, as were heat flux and frost heave in a laboratory test. Comparison of the simulated and experimental data illustrates the importance of unsaturated hydraulic conductivity. It is one parameter which is difficult to measure and for which only a few laboratory test results are available. Therefore, unsaturated hydraulic conductivities calculated in the computer model may be a significant source of error in calculations of frost heave. The algorithm incorporating effects of surcharge and overburden was inconclusively evaluated. Time-dependent frost penetration and frost heave in laboratory specimens were closely simulated with the model. After 10 days of simulation, the computed frost heave was about 2.3 cm vs 2.0 cm and 2.8 cm in two tests. Frost penetration was computed as 15 cm and was measured at 12.0 cm and 12.2 cm in the two laboratory samples after 10 days.
    Type of Medium: Series available for loan
    Pages: v, 49 Seiten , Illustrationen
    Series Statement: CRREL Report 80-10
    Language: English
    Note: CONTENTS Abstract Preface Introduction One-dimensional equations of simultaneous heat and moisture flux Moisture transport Heat transport Phase change Coupling effects Frost heave algorithm Development of computer model Finite difference vs finite element method Finite element formulation Time domain solution Evaluation of the mathematical model Heat flux Moisture flux Numerical dispersion Frost heave of homogeneous laboratory samples Conclusions Recommended studies to refine the model Literature cited Appendix A. Work plan, staffing and instrumentation requirements for correlating results oflaboratory frost susceptibility tests with field performance Appendix B. Proposed investigation of thaw weakening of subgrade soil and granular unboundbase course Appendix C. Derivation of finite element system matrices
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