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  • 1
    Call number: ZSP-553-11
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 24 S.
    ISBN: 8717051193
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 11
    Language: English
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  • 2
    Call number: ZSP-553-10
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 28 S., 11 Beil.
    ISBN: 8717051118
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 10
    Language: English
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  • 3
    Monograph available for loan
    Monograph available for loan
    Moskva : Izdat. Nauka
    Call number: MOP B 17672 ; AWI A13-17-9707
    Type of Medium: Monograph available for loan
    Pages: 234 S. , graph. Darst.
    Series Statement: Bibliotečka Programmista
    Uniform Title: Applications des modèles numériques en physique 〈russ.〉
    Language: Russian
    Note: In kyrill. Schr.
    Location: MOP - must be ordered
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  • 4
    Call number: ZSP-553-5
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 19 S.
    ISBN: 8717028736
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 5
    Language: English
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  • 5
    Call number: ZSP-558-1
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: V, 104 S. : graph. Darst.
    Language: English
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  • 6
    Call number: ZSP-558-2
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: IX, 505 S. : Ill., graph. Darst.
    Language: English
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  • 7
    Call number: ZSP-697/C-26 ; MOP Per 434(26)
    In: Rezul'taty issledovanij po mezdunarodnym geofiziceskim proektam
    Type of Medium: Series available for loan
    Pages: 107 S. : graph. Darst., Kt.
    Series Statement: Rezul'taty issledovanij po mezdunarodnym geofiziceskim proektam : Meteorologiceskie issledovanija 26
    Note: Contents: The role of atmospheric circulation in the formation of air temperature anomalies on climatic scale in the Arctic / A. I. Voskresensky, A. A. Girs. - Some features of contemporary climatic variations in the Arctic / A. N. Lyubarsky, L. S. Petrov. - Structure of long-term variations of the snowless period in the Soviet Arctic / E. I. Aleksandrov, N. N. Briazgin, A. N. Lyubarsky. - Seasonal display of turbulent heat transfer in the Arctic Ocean / K. I. Chukanin. - Nature of causal relationship between the polar ice and the thermal conditions in the atmosphere / V. F. Zakharov. - Climate modelling and polar regions / A. I. Voskresensky, A. P. Nagurny. - Climatic change forecasting and polar regions / A. P. Nagurny. - Some features of the present evolution of the Arctic ice sheet / V. F. Zakharov, A. A. Kirillov. - Determination of the synchronous climate variation regions by the method of expansion in natural orthogonal functions (by example of the northern area of Ob' river basin) / E. I. Aleksandrov, N. N. Briazgin, A. N. Lyubarsky. - Climatic variations in the northern areas of Ob' and Yenisey river basins and in Karskoye more (Kara Sea) during the last decades / L. S. Petrov, V. V. Subbotin. , In kyrill. Schr.
    Location: AWI Reading room
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  • 8
    Series available for loan
    Series available for loan
    Oslo : Dybwad [in Komm.]
    Associated volumes
    Call number: ZSP-597-1,1
    In: Resultater av de Norske statsunderstøttede Spitsbergenekspeditioner
    Type of Medium: Series available for loan
    Pages: 104 S.
    Series Statement: Resultater av de Norske statsunderstøttede Spitsbergenekspeditioner 1,1
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  • 9
    Call number: ZSP-329-11
    In: Glaciological data
    Type of Medium: Series available for loan
    Pages: IX, 148 S. : Ill., graph. Darst., Kt.
    Series Statement: Glaciological data : GD 11
    Branch Library: AWI Library
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  • 10
    Call number: AWI P9-83-0971b
    Type of Medium: Monograph available for loan
    Pages: 50 S. : graph. Darst., Ktn.
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  • 11
    Call number: ZSP-597-176
    In: Skrifter
    Type of Medium: Series available for loan
    Pages: 44 S. : Ill., graph. Darst., Kt
    ISBN: 8290307179
    Series Statement: Skrifter / Norsk Polarinstitutt 176
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  • 12
    Series available for loan
    Series available for loan
    Kingston : Antarctic Division, Department of Science and Technology
    Associated volumes
    Call number: ZSP-124-17
    In: ANARE research notes
    Type of Medium: Series available for loan
    Pages: iv, 18 S. : Ill., Kt.
    ISBN: 0642875472
    Series Statement: ANARE research notes 17
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  • 13
    Series available for loan
    Series available for loan
    Kingston : Antarctic Division, Department of Science
    Associated volumes
    Call number: ZSP-124-19
    In: ANARE research notes
    Description / Table of Contents: Invariant geomagnetic co-ordinates were calculated for points on a 5° x 5° grid over the earth, at altitudes of 105 km and 250 km. The calculation was based on the International Geomagnetic Reference Field (IGRF) for 1975, updated to 1977.25 to correspond approximately to the middle of the International Magnetosphere Survey period. Global charts of the invariant co-ordinates at 105 km altitude are presented. The invariant co-ordinates were expanded into a set of spherical harmonic co-efficients and FORTRAN subroutines are described which allow the rapid re-calculation of the invariant co-ordinates form the co-efficients.
    Type of Medium: Series available for loan
    Pages: iv, 44 S. : Kt. + 3 Kt.-Beil.
    ISBN: 0642874824
    Series Statement: ANARE research notes 19
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  • 14
    Series available for loan
    Series available for loan
    Kingston : Antarctic Division, Dept. of Science and Technology
    Associated volumes
    Call number: ZSP-124-13
    In: ANARE research notes
    Description / Table of Contents: A computer technique is described for digitising data from the sea ice maps distributed weekly by the U.S. Navy-NOAA Joint Ice Centre. Monthly maps of the Antarctic region outlining extent of sea ice cover have been available from this source since January 1973. Computer programs for the analysis of this data are described. Maps are presented which illustrate the mean, over ten years, of the extent each month and at maximum. These data have been used as climate monitor using the relation between sea ice extent and the distribution of anticyclones, Antarctic and ocean temperatures, and atmospheric CO2 levels which have been the topics of many recent studies. The data are also of revelance to polar transport studies. Ships may need to penetrate, and aircraft may need to overfly, many kilometre of sea ice in order to carry out scientific programs or to gain access to Antarctic stations.
    Type of Medium: Series available for loan
    Pages: iv, 54 S. : Ill., Kt.
    ISBN: 0642877742
    Series Statement: ANARE research notes 13
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  • 15
    Monograph available for loan
    Monograph available for loan
    Moskva : Izdat. Moskovsk. Univ.
    Call number: AWI G3-94-0079
    Type of Medium: Monograph available for loan
    Pages: 202 S.
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  • 16
    Call number: AWI P6-09-0022 ; ZSP-597-175 ; ZSP-597-175(2. Ex.) ; ZSP-597-175(3. Ex.)
    In: Skrifter
    Type of Medium: Monograph available for loan
    Pages: 130 S. : Ill., graph. Darst., Kt. + 2 Kt.-Beil.
    ISBN: 8290307160
    Series Statement: Skrifter / Norsk Polarinstitutt 175
    Language: English
    Branch Library: AWI Library
    Branch Library: AWI Library
    Branch Library: AWI Library
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  • 17
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: ZSP-558-8
    In: Middle atmosphere program
    Type of Medium: Monograph available for loan
    Pages: 76 S.
    Language: English
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  • 18
    Call number: ZSP-558-9 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 579 S. : Ill., graph. Darst.
    Language: English
    Location: AWI Reading room
    Location: MOP - must be ordered
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  • 19
    Series available for loan
    Series available for loan
    Associated volumes
    Call number: ZSP-691-1983
    In: Research in Svalbard
    Type of Medium: Series available for loan
    Pages: 104 S.
    Language: English
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  • 20
    Series available for loan
    Series available for loan
    Oslo : Univ. Press [in Komm.]
    Associated volumes
    Call number: ZSP-597-154/B
    In: Geological map of Svalbard 1:500 000
    Type of Medium: Series available for loan
    Pages: 1 Kt.
    Series Statement: Geological map of Svalbard 1:500 000 2G
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  • 21
    Call number: ZSP-329-10
    In: Glaciological data
    Type of Medium: Series available for loan
    Pages: VII, 68 S. : Ill.
    Series Statement: Glaciological data : GD 10
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  • 22
    Series available for loan
    Series available for loan
    Kingston : Antarctic Division, Dept. of Science and Technology
    Associated volumes
    Call number: ZSP-124-14
    In: ANARE research notes
    Description / Table of Contents: The variation of a Southern Hemisphere absolute vorticity area index about solar sector boundary crossings is examined by the superposed epoch method. It is concluded that the Southern Hemisphere results do not confirm the winter decrease in vorticity near sector crossings found by researchers using Northern Hemisphere data. There is, however, limited indication that the following southern hemisphere effects may exist: (a) A vorticity decrease in the summer months showing a shape similarity to the Northern Hemisphere winter response. (b) A winter peak in vorticity on the boundary crossing date for the Australian quadrant of the Southern Hemisphere.
    Type of Medium: Series available for loan
    Pages: iv, 49 S. : Ill.
    ISBN: 0642877335
    Series Statement: ANARE research notes 14
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  • 23
    Series available for loan
    Series available for loan
    Kingston : Antarctic Division, Dept. of Science and Technology
    Associated volumes
    Call number: ZSP-124-15
    In: ANARE research notes
    Description / Table of Contents: The history of the Antarctic Names and Polar Medals Committee is given. Place names principles and criteria are outlined and the procedure for proposing new names is described. The names list contains the decisions of the Committee approved by the Minister for Science and Technology until July 1983. Name and position only are listed.
    Type of Medium: Series available for loan
    Pages: iv, 50 S.
    ISBN: 0642877270
    Series Statement: ANARE research notes 15
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  • 24
    facet.materialart.
    Unknown
    Leningrad : Vsesoj. im. Lenina Naučno-Issl. Geol. Institut im A. P. Karpinskogo
    Call number: AWI K-96-0595(1-16) ; AWI K-96-0522(1-16)
    Pages: 1 Kt. auf 16 Bl. : mehrfarb. ; Gesamtgr. 337 x 206 cm
    Language: Russian , English
    Note: In kyrill. Schr. - Legende russ. u. engl.
    Location: 16
    Location: 16
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  • 25
    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
    Location: Lower compact magazine
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  • 26
    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
    Location: Upper compact magazine
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  • 27
    Call number: SR 90.0068(22) ; ZSP-320(E,22)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 28 S.
    Series Statement: Geologisches Jahrbuch : Reihe E 22
    Language: German
    Location: Lower compact magazine
    Location: Lower compact magazine
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  • 28
    Monograph available for loan
    Monograph available for loan
    Berkeley [u.a.] : Univ. California Pr.
    Call number: AWI Bio-93-0186
    Description / Table of Contents: Contents: Preface. - Acknowledgements. - 1 Introduction. - 2 Methods and definitions. - 3 Occupation of the rookery. - 4 The activities of prebreeders. - 5 Breeding behaviour. - 6 Initial pairing and breeding. - 7 Activities of breeding with respect to age and experience. - 8 Factors other than age and experience that affect productivity. - 9 Demography of the Croizer population. - 10 Age at first breeding and the balance among demographic variables. - Appendixes. - Literature cited. - Index.
    Description / Table of Contents: The Adélie penguin is probably the best-known large seabird. Because seabirds are slow to mature, are long-lived compared with most terrestrial birds, and are sensitive to changes in their marine environment, an accurate study of their ecology must be long-term. Based on fifteen years of fieldwork with a particular group of Adélie penguins at Cape Croizer, Ross Island, Antarctica, this first long-term study of a known-age population greatly increases our understanding of the population ecology of vertebrates, and the effects of age, experience, and environment on their behaviour. The authors cover virtually every aspect of penguin life, from occupation of the rookery to the breeding activities of the aged and experienced birds. They investigate the Adélie's ability to find food and to travel through its icepack habitat, its choice of mates, the number of eggs it will lay, and even the position of its nest in the colony. They find that age and experience are the factors that determine a penguin's chances for survival and its ability to produce offspring. This landmark work will be the basis for all future work on the Adélie penguin, and contributes significantly to our knowledge of the natural history patterns of most other seabird species. Its importance is heightened by increasing attempts to harvest the living marine resources of the Antarctic seas, since the data provided here are a critical measure of the effects of these harvests on Antarctic marine ecosystems. Breeding biology of the Adélie penguin is an invaluable tool for marine ecologists.
    Type of Medium: Monograph available for loan
    Pages: XI, 240 S. : III., graph. Darst.
    ISBN: 0520048385
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  • 29
    Monograph available for loan
    Monograph available for loan
    Lunar and Planetary Institute
    Call number: AWI G9-85-0832
    Type of Medium: Monograph available for loan
    Pages: 9 S. : 23 cm
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  • 30
    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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  • 31
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: G 8336 ; M 92.0824 ; AWI G1-97-0071
    Type of Medium: Monograph available for loan
    Pages: IX, 242 S. : Ill., graph. Darst.
    ISBN: 3540118640
    Uniform Title: Environnements sédimentaires anciens et milieux de vie
    Language: German
    Location: Upper compact magazine
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  • 32
    Call number: AWI A4-01-0211
    Type of Medium: Monograph available for loan
    Pages: 32 S.
    Series Statement: CRREL Special Report 83-14
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  • 33
    Series available for loan
    Series available for loan
    Hannover : Schweizerbart
    Associated volumes
    Call number: SR 90.0068(26) ; ZSP-320(E,26)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 90 S.
    Series Statement: Geologisches Jahrbuch : Reihe E 26
    Language: Undetermined
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  • 34
    Series available for loan
    Series available for loan
    Hannover : Schweizerbart
    Associated volumes
    Call number: SR 90.0068(21) ; ZSP-320(E,21)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 55 S.
    Series Statement: Geologisches Jahrbuch : Reihe E 21
    Language: Undetermined
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  • 35
    Call number: SR 90.0068(25) ; ZSP-320(E,25)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 73 S. + 6 Kt.-Beil., 5 Beil.
    Series Statement: Geologisches Jahrbuch : Reihe E 25
    Language: German
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  • 36
    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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  • 37
    Call number: ZSP-697/B-26
    In: Rezul'taty issledovanij po meždunarodnym geofizičeskim proektam
    Description / Table of Contents: Contents: The theory of icings in the system of geosciences / N. I. Tolstikhin. - Problems of methodology in the study of icings / B. L. Sokolov. - Conditions for the appearance of ice on the "solid body-water" boundary / V. N. Golubev. - Heat exchange during water freezing on ice basis / V. R. Alekseiev, G. I. Smorygin. - Study of water freezing on the ice surface / A. P. Kazakov. - Problems of theory of droplet water freezing / G. I. Smorygin. - Experimental research of spray icing in laboratory / V. V. Baranov. - On calculation of pressure generated in the process of ice formation in iced mounds / A. I. Pekhovich, Ye. L. Razgovorova. - Regularities in the formation of the structure of icings on the solid bodies / V. N. Golubev. - Formation of artificial ice coating with loose structure over ice / G. I. Smorygin. - On the mechanism of formation of icings on rivers / A. N. Chizhov. - Effect of permafrost on heat release and distribution of filtration current level / Yu. G. Yefimov, A. B. Sotnikov. - Peculiarities of heat balance of the Pamirs icings and possibilities of their application to enlarge summer river discharge / I. M. Lebedeva
    Type of Medium: Series available for loan
    Pages: 107 S.
    Series Statement: Rezul'taty issledovanij po meždunarodnym geofizičeskim proektam : Gljaciologičeskie issledovanija 26
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  • 38
    Call number: ZSP-201-83/32
    In: CRREL Report, 83-32
    Description / Table of Contents: Ice forces on a bridge pier in the Ottauquechee River, in Quechee, Vermont, were measured by installing fourpanels-each capable of measuring forces in the normal and tangential direction - on both sides of a vertical V-shaped pier nose. The measured forces are presented for a short period during an ice run. After the ice run, the thickness and sizes of the ice floes were measured and the compressive strength of the ice was determined in the laboratory from the ice samples collected along the river banks. The water level measurements made at several locations along theriver are also presented for the period of the ice run.
    Type of Medium: Series available for loan
    Pages: ii, 8 Seiten , Illustrationen
    Series Statement: CRREL Report 83-32
    Language: English
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  • 39
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/33
    In: CRREL Report, 83-33
    Description / Table of Contents: A thermodynamic model has been developed that for the first time describes the entire creep process, including primary, secondary, and tertiary creep, and failure for both constant stress (CSR) tests (σ= const.) and constant strain rate (CSR) tests (ϵ = const.), in the form of a unified constitutive equation and unified failure criteria. Deformation and failure areconsidered as a single thermoactivated process in which the dominant role belongs to the change of entropy. Failure occurs when the entropy change is zero. At that moment the strain rates in CS tests reach the minima and stress in CSR tests reaches the maximum (peak) values. Families of creep (ϵ vs τ) and stress-strain (σ vs ϵ) curves, obtained from uni-axial compression CS and CSR tests of frozen soil, respectively (both presented in dimensionless coordinates), are plotted as straight lines and are superposed, confirming the unity of the deformation and failure process and the validity of the model. A method is developed for determining the parameters of the model, so that creep deformation and the stress-strain relationship of ductile materials such as soils can be predicted based upon information obtained from either type of test.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 83-33
    Language: English
    Note: CONTENTS Abstract Nomenclature Introduction Principal relationships Constitutive equation Failure criteria Secondary creep: Flow equations Creep at constant stress (σ = Const.) Creep model Creep strain (σ = Const.) Creep at constant strain rate (ϵ = Const.) Stress-strain relationship Stress/strain/strain rate at failure Test data Preliminary analysis Constant stress tests (σ = Const.) Constant strain rate tests (ϵ = Const.) The principle of superposition Thermodynamic equation of creep Conclusions Literature cited
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  • 40
    Monograph available for loan
    Monograph available for loan
    Berlin : Zentralinstitut für Physik der Erde
    Call number: AWI G2-19-92036
    Type of Medium: Monograph available for loan
    Pages: 78 Seiten , Illustrationen
    Language: German
    Note: Inhaltsverzeichnis: 1. Vorwort. - 2. Struktur und Entwicklung der Antarktischen Platte. - 2.1. Generelle Kennzeichnung der Antarktischen Platte. - 2.2. Tripelpunkte. - 2.2.1. Bouvet-Tripelpunkt. - 2.2.2. Indik-Tripelpunkt. - 2.2.3. Macquarie-Tripelpunkt. - 2.2.4. Osterinsel-Tripelpunkt. - 2.3. Plattengrenzen und Plattenfelder. - 2.3.1. Bouvet-Indik-Feld. - 2.3.1.1. Ausbildung der Plattengrenze. - 2.3.1.2. Anomale Entwicklung südlich der Agulhas-Bruchzone. - 2.3.1.3. Inseln und submarine Plateaus im südlichen Indik. - 2.3.2. Indik-Macquarie-Feld. - 2.3.3. Macquarie-Osterinsel-Feld. - 2.3.3.1. Ausbildung der Plattengrenze. - 2.3.3.2. Sandwich- und Scotia-Platte. - 2.3.4.3. Beziehungen zwischen Südamerika und Antarktika und das Problem der Antarktischen Halbinsel. - 2.3.4.4. Weddellbecken. - 2.3.4.5. "Drake-Platte". - 2.3.4.6. Plattentektonische Entwicklung des Südostpazifiks. - 2.4. Überblick über den Werdegang der südhemisphärischen Ozeangebiete und den Ablauf des Gondwanazerfalls. - 3. Zur Bedeutung der Krustenentwicklung für Paläoozeanlogie und Paläoklimatologie. - 3.1. Einige Kennzeichen der ozeanologischen Situation in den antarktischen Meeresgebieten. - 3.2. Kriterien für Veränderungen der paläoozeanologischen und paläoklimatologischen Verhältnisse im Hinblick auf die paläotektonische Interpretation. - 3.3. Abriß der paläoozeanologisch-paläoklimatologischen Entwicklung im Känozoikum und mögliche Zusammenhänge mit dem tektonischen Geschehen. - 4. Zusammenfassung. - 5. Literaturverzeichnis. - 6. Abbildungsverzeichnis. -
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  • 41
    Series available for loan
    Series available for loan
    Leipzig : Akademie der Wissenschaften der DDR, Zentralinstitut für Isotopen- und Strahlenforschung
    Associated volumes
    Call number: ZSP-980-46
    In: ZfI-Mitteilungen, Nr. 46
    Type of Medium: Series available for loan
    Pages: 134 Seiten , Illustrationen
    Series Statement: ZfI-Mitteilungen 46
    Language: German
    Note: Inhaltsverzeichnis: Nichtkonstante relative Atommassen als Folge variierender Isotopenhäufigkeiten polynuklider Elemente und ihre Auswirkungen auf die Richtigkeit analytischer Meßwerte bei der Elementanalytik / H. Gerstenberger. - Massenspektrographische Analyse an Standardgesteinsproben / H.-J. Dietze. - Methodische Untersuchungen zur massenspektrographischen Analyse an geologischen Proben mit relativ hohen Seltenerdengehalten / S. Becker, H.-J. Dietze. - Massenspektrographische Analyse von Calciumfluorid-Einkristallen / H.-J. Dietze, H. Zahn. - Gammaaktivierungsanalyse am Mikrotron MT 22 : analytische Möglichkeiten für geologische Proben und Rohsilizium, Bestimmung von Blei / M. Geisler, H. Gerstenberger. - Zur Korrektur von Inhomogenitäten des Reaktorneutronenflusses bei der Aktivierungsanalyse / M. Geisler, H. Schelhorn. - Instrumentelle Aktivierungsanalyse von Molybdäniten / M. Geisler, H. Schelhorn. - Bestimmung von Osmium in Molybdäniten / H. Schelhorn, M. Geisler. - Instrumentelle Aktivierungsanalyse von Flugstaub / M. Geisler. - Aktivierungsanalytische Kontrolle von Spurenelementen bei der Gallium-Diffusion in Silizium / M. Geisler. - Übersicht über bisher erschienene Hefte der ZfI-Mitteilungen.
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  • 42
    Call number: ZSP-SCAR-570-5
    In: National Antarctic Research Report to SCAR, No. 5
    Type of Medium: Series available for loan
    Pages: 35 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 5
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 82-October 83. - II. Planned Activities, October 83-October 84. - References.
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  • 43
    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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  • 44
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/1
    In: CRREL Report, 83-1
    Description / Table of Contents: Roof snow load case studies gathered throughout the United States over a three-year period are analyzed. The objective of the analysis is to determine a relationship between the snow load on the ground and the corresponding uniform snow load on flat and sloped roofs. The main parameters considered are the thermal characteristics of the roof, the roof slope and the exposure of the structure. Exposure has the strongest effect on the ratio of ground to roof snow loads. Comparisons are made with existing and proposed building codes and standards.
    Type of Medium: Series available for loan
    Pages: iv, 47 Seiten , Illustrationen
    Series Statement: CRREL Report 83-1
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion table Introduction Data base Conversion factor Ground load effects Exposure effects Thermal effects Slope effects Expected value relationship Comparison with existing codes and standards Comparison with relationships proposed in new ANSI standard Summary and conclusions Literature cited Appendix A. Roof snow load case history reports Appendix B. Roofs in the snow load case study data base Appendix C. Ground and roof snow load data Appendix D. Conversion factors from the 1982 ANSI standard
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  • 45
    Call number: AWI A3-20-93434
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 1
    Type of Medium: Series available for loan
    Pages: 121 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,1
    Language: German
    Note: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
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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-201-81/19
    In: CRREL Report, 81-19
    Description / Table of Contents: Field observations support the interpretation that differences in the strength of radar returns from the ice covers of lakes on the North Slope of Alaska can be used to determine where the lake is frozen completely to the bottom. An ice/frozen soil interface is indicated by a weak return and an ice/ water interface by a strong return. The immediate value of this result is that SLAR (side-looking airborne radar) imagery can now be used to prepare maps of large areas of the North Slope showing where the lakes are shallower or deeper than 1.7m (the approximate draft of the lake ice at the time of the SLAR flights). The bathymetry of these shallow lakes is largely unknown and is not obvious from their sizes or outlines. Such information could be very useful, for example in finding suitable year-round water supplies.
    Type of Medium: Series available for loan
    Pages: iii, 17 Seiten , Illustrationen
    Series Statement: CRREL Report 81-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction The experiment Results Maps of completely frozen North Slope lakes Literature cited
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  • 47
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/20
    In: CRREL Report, 81-20
    Description / Table of Contents: A historical review of research is presented to establish the state- of-the-art for analyzing the behavior of vehicles in shallow snow. From this review, the most comprehensive and promising model is put together to establish a first-cut performance prediction model for vehicles operating in shallow snow, slush, ice and thawing soils.
    Type of Medium: Series available for loan
    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 81-20
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Historical review Model selection Traction Resistance Slush and thawing soils Ice, hard-packed snow, packed snow River and lake ice Model use Conclusions Literature cited
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  • 48
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/18
    In: CRREL Report, 81-18
    Description / Table of Contents: During the growing seasons of 1977, 1978, and 1979, revegetation techniques were studied on the Chena River Lakes Project, a flood control dam and levee near Fairbanks, Alaska, to find an optimal treatment for establishing permanent vegetation cover on the gravel structures. The treatments tested on plots at the dam andor levee involved three main variables 1 vegetation grass and clover seed andor willow cuttings, 2 mulch, mulch blanket, andor sludge, and 3 substrate gravel or fine-grained soil over the gravel base. The mulches were hay, wood-cellulose-fiber, peat moss, and Conwed Hydro Mulch 2000, which is a wood-cellulose-fiber mulch with a polysaccharide tackifier. A constant rate of fertilizer was applied to all plots except the control. A section of each plot was refertilized again in their third growing season to compare annual and biannual fertilization. The high fertilization rate produced above-average growth. Fescue, brome, and foxtail were the most productive species on the dam, while alsike cover was the most productive on the wetter levee site. When grass seed and willow cuttings were planted at the same time, willow survival and growth were reduced. Fertilization is required for at least two years to produce an acceptable permanent vegetation cover, although fine- grained soil or sludge reduces the amount of fertilizer needed in the second year. Third-year fertilization may not be necessary since the benefits of the second fertilization continue for at least two years. A sludge treatment refertilized during its second growing season produces the highest biomass recorded in this study.
    Type of Medium: Series available for loan
    Pages: ix, 59 Seiten , Illustrationen
    Series Statement: CRREL Report 81-18
    Language: English
    Note: CONTENTS Abstract Preface Abbreviations Conversion factors Summary Introduction Background Site characterization Climate Purpose Materials and methods General Moose Creek Dam site Tanana Levee site Sampling and measurement Abiotic controls on vegetation Meteorological data Soil moisture as a limiting factor Soil chemical analysis Vegetation growth and survival Moose Creek Dam site Tanana Levee site Biomass by species Roof penetration Seedling density of invading woody species Weeds Supplemental observations Sediment loss Sludge and runoff-water composition Cost analysis Conclusions Literature cited Appendix A: 1977 grass growth on 1977 dam treatments Appendix B: 1978 grass growth on 1977 dam treatments Appendix C: 1979 grass growth on 1977 dam treatments Appendix D: Grass growth on 1978 dam treatments Appendix E: 1977, 1978, and 1979 survival of willow treatments Appendix F: Grass growth on Tanana levee treatments Appendix C: Chemical analysis of sludge and runoff water
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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-201-81/21
    In: CRREL Report, 81-21
    Description / Table of Contents: The reflection of solar radiation by a snow cover in situ and the apparent influence of selected substrates were examined in wavelength bands centered at 0.81, 1.04, 1.10, 1.30, 1.50 and 1.80 micrometers. Substrates included winter wheat, timothy, corn, alfalfa, grass, concrete and subsurface layers of 'crusty' snow and ice. Reasonable qualitative agreement between measurements and theoretical predictions was demonstrated, with indications of quantitative agreement in the definition of a 'semi-infinite depth' of snow cover. It was concluded that ultimate quantitative agreement between theory and measurement will require that an 'optically effective grain size' be defined in terms of physically measuarable dimensions or meteorologically predictable characteristics of the ice crystals composing the snowpack.
    Type of Medium: Series available for loan
    Pages: iii, 17 Seiten , Illustrationen
    Series Statement: CRREL Report 81-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Experimental method Substrate preparation Experimental configuration Radiometric measurements Snow characterization Reflectance standards Data analysis Reflectance measurements Snow replica analysis Discussion of results Comparative reflectance of various substrates under snow Ablation of a snow cover Reflectance from a very light, fresh snow cover Measurements at angles other than vertical Reflectance from substrates Concluding observations Literature cited
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  • 50
    Series available for loan
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/26
    In: CRREL Report, 81-26
    In: Mechanics of cutting and boring, Part 7
    Description / Table of Contents: Abstract: This report deals with force, torque, energy and power in machines such as drills and boring devices, where the cutting head rotates about a central axis while penetrating parallel to that axis. Starting from a cosideration of the forces developed on individual cutting tools, or segments of cutters, the thrust and torque on a complete cutting head is assessed, and simple relationships between thrust and torque are derived. Similarly, the energy and power needed to drive the cutting head arc estimated and related to tool characteristics. Design characteristics of existing machines are compiled and analyzed to give indications of thrust, torque, power, effective tool forces, nominal thrust pressure, power density, and specific energy.
    Type of Medium: Series available for loan
    Pages: iv, 38 Seiten , Illustrationen
    Series Statement: CRREL Report 81-26
    Language: English
    Note: CONTENTS Abstract Preface Foreword Introduction Terminology Tool forces Parallel motion tools Indentation tools Head thrust, thrust per unit width, and nominal head pressure Power and power density Torque Specific energy Efficiency and performance index Power requirements for clearance of cuttings Minimum power requirements for lifting cuttings in a vertical hole Power consumption and efficiency in continuous-flight augers Air circulation Mud circulation Literature cited Appendix A: Vertical conveyance by continuous-fiight augers Appendix B: Surface areas on a helical flight and its stem
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  • 51
    Series available for loan
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    Call number: ZSP-201-81/5
    In: CRREL Report, 81-5
    Type of Medium: Series available for loan
    Pages: 27 Seiten , Illustrationen
    Series Statement: CRREL Report 81-5
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test setup Test results The USCGC Mackinaw The Roger Slough The Cason J. Callaway The imperial St. Clair Vibration levels Discussion Frequency content Magnitude Mode of transmission Opening the channel Flexural waves Duration and occurrence of maximum vibrations Effect of weather Conclusions and recommendations Literature cited
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  • 52
    Series available for loan
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-81/4
    In: CRREL Report, 81-04
    Description / Table of Contents: Abstract: Eight sites along the trans-Alaska pipeline from the Denali Fault to Fairbanks were selected for pipeline and pipeline support movement studies. Four measurement surveys were conducted, starting before oil pumping operations began up to September 1978, to determine the lateral and longitudinal pipe movement due to the thermal expansion of elevated sections of the pipeline, the tilt of the vertical support members (VSM's), and the changes in relative elevation of the support crossbeams. A maximum lateral and longitudinal motion of the pipe of 13 3/8 in. and 2 13/16 in. respectively were measured up to September 1978. Tilt data for 180 VSM's showed little change over a one-year period, with only S VSM's tilting more than 0.5 °. Relative elevation measurements showed insignificant changes for two sites compared over a one-year period. Comparisons of our data with as-built elevations at 8 sites show a few large differences that cannot be readily explained. In general the pipeline and its supports, at least at the sites studied, show minimal movement and activity.
    Type of Medium: Series available for loan
    Pages: v, 32 Seiten , Illustrationen
    Series Statement: CRREL Report 81- 4
    Language: English
    Note: CONTENTS Abstract Preface Introduction Measurement technique Pipeline movement Vertical support member tilt Relative elevations of pipe support crossbeams Results and discussion Pipeline movement Vertical support member tilt Relative elevations Summary Literature cited Appendix A. Lateral, longitudinal and horizontal pipe movement Appendix Β. Tabulation of movement measurements
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  • 53
    Call number: ZSP-980-85
    In: ZfI-Mitteilungen, Nr. 85
    Type of Medium: Series available for loan
    Pages: 448 Seiten
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 85
    Language: German
    Note: Inhalt Bd. 85 - Vorträge 2: δD-Variationen der Granite und Glimmerschiefer im Kontaktbereich eines Intrusivkörpers im mittleren Erzgebirge / T. Böttger ; G. Stiehl ; K. Mühle. - Über die Anwendung von Zustandsdiagrammen zur anschaulichen Darstellung von Prozessen der Isotopenfraktionierung (System Wasser-Eis-Salz) / S. B. Brandt ; S. S. Brandt. - Die Anwendung von Neodym- und Strontiumisotopen auf TR-Mineralisationen / S. B. Brandt ; W. S. Lepin ; V. N. Solodjankina ; T. I. Kolosnizyna. - Zur Berechnung und Interpretation natürlicher Isotopenvariationen in Alumosilikaten / G. Christoph. - Theoretische Aspekte zur radiogeochronologischen Datierung von Gesteinen und Mineralen / G. Christoph. - Strontium-, Sauerstoff- und Kohlenstoffisotope in Karbonaten aus Kimberliten Jakutiens / L. W. Dneprowskaja ; M. N. Maslowskaja ; S. B. Brandt. - Zur Veränderung der isotopischen Zusammensetzung des Sauerstoffs von Cherts und Carbonaten im Prozeß der Diagenese/Metamorphose / O. Gebhardt ; H. Schütze. - Zur Genese der variszisch-postkinematischen Granite des Erzgebirges / H. Gerstenberger ; G. Haase ; G. Tischendorf ; K. Wetzel. - Zur Theorie von Isotopenaustauschgleichgewichten in komplizierten natürlichen Systemen / R. Haberlandt ; G. Christoph. - C-Isotopenuntersuchungen zur Entwicklung des Altpaläozoikums im Thüringischen Schiefergebirge / K. Hahne ; I. Maaß ; H. Lützner ; J. Ellenberg ; F. Falk ; E. Grumbt. - Der Einfluß des Druckes auf die Geschwindigkeit von Isotopenaustauschreaktionen / P. Harting ; N. I. Medvedovskaja ; U. Schröter ; Ju. A. Borstchevskij. - Thermodynamische Beschreibung von Hochdruck-Adsorptionsisothermen / P. Harting ; K. Weingart. - Experimentelle Untersuchungen zu speziellen Adsorptionsisotopieeffekten unter geologischen Bedingungen / P. Harting ; K. Weingart ; J. Heybey. - Isotopenhydrologische und hydrochemische Charakterisierung des innerantarktischen "Untersees" im Wohlthatmassiv, Dronning-Maud-Land (Ostantarktika) / W.-D. Hermichen ; M. Grelle ; P. Kowski ; W. Kurze ; U. Wand. - Die isotopenglaziologische Situation im Umfeld der Schirmacheroase / Dronning-Maud-Land - ein erster Überblick / W.-D. Hermichen ; P. Kowski ; G. Strauch. - Theoretische Untersuchungen zu Adsorptionsisotopieeffekten von Erdgaskomponenten unter erhöhten Drücken / J. Heybey ; P. Harting. - Statistisch-mechanische Behandlung der Unterschiede im Adsorptionsverhalten isotopischer Spezies / J. Heybey ; H. Schmid ; H.-L. Vörtler. - Versuch zur 14C-Datierung von Sturmvogelbrutplätzen in der Antarktis / A. Hiller ; U. Wand. - Untersuchungen zur CO2-Resorption aus thermoindifferenten Kohlendioxidmineralwasserbädern durch die Haut des Menschen / G. Hübner ; I. Maaß ; C. Epperlein ; G. Plötner ; H. Jordan. - Stoff- und Isotopenwerte des Nitrat-Stickstoffs in der Bodenzone und ihre zeitlichen Veränderungen / H. Hübner. - Biogennye faktory formirovanija izotopnogo sostava ugleroda organičeskogo veščestva porod raznogo facial'no-genetičeskogo tipa = Biogene Faktoren der Herausbildung der isotopischen Zusammensetzung der organischen Substanz von Gesteinen unterschiedlichen faziell-genetischen Typs / A. A. Ivlev ; R. G. Pankina ; M. V. Dachnova. - Matematičeskij analiz frakcionirovanija izotopov ugleroda v živoj kletke = Mathematische Analyse der Kohlenstoffisotopenfraktionierung im lebenden Gewebe / A. A. Ivlev. - Statistische Untersuchungen von Altersdaten variszischer Granitoide im Erzgebirge und Vogtland / T. Kaemmel. - Zur Genese des Strontiums in Granitoiden des Vogtlandes / T. Kaemmel. - Untersuchung der Beziehung der Deuteriumkonzentration zwischen atmosphärischem Wasserdampf und Niederschlägen im Gebiet der Schirmacheroase / Ostantarktika / P. Kowski. - Untersuchungen der 18O-Variationen von Graniten und Glimmerschiefern im Kontaktbereich eines Intrusivkörpers im mittleren Erzgebirge / K. Mühle ; G. Stiehl ; H. Schütze ; Ju. A. Borschtschewski ; N. I. Medwedowskaja. - Neue Möglichkeiten zur Freisetzung von Meßgasen für die massenspektrometrische Isotopenanalyse aus Feststoffen / G. Müller ; K. Mühle ; D. Hessel ; H. Zahn. - Isotopenhydrologische und hydrochemische Charakterisierung von Seen im Gebiet der Schirmacher-Oase (Ost-Antarktika) / W. Richter ; U. Wand ; G. Strauch ; P. Kowski ; W. Kurze. - Temporal and spatial variations of deuterium and oxygen-18 in European precipitation and groundwaters / K. Rozanski. - The dissection of carbon and hydrogen isotope effects in the alkanes / S. Skaron ; S. K. Sarpal ; M. Wolfsberg. - Modell zur Verteilung der Stickstoffisotope zwischen Gasphase und Feststoff bei thermischer Beanspruchung organischer Substanz / H. Schütze ; M. Lehmann. - Komplexe isotopengeochemische, geochemische und geochronologische Untersuchungen von Graniten und Glimmerschiefern im Kontaktbereich eines Intrusivkörpers im mittleren Erzgebirge / G. Stiehl ; P. Beuge ; T. Böttger ; I. Beyer ; M. Geisler ; H. Gerstenberger ; G. Haase ; R. Haberlandt ; D. Haendel ; K. Mühle ; H.-M. Nitzsche ; H. Schütze ; G. Strauch ; G. Tischendorf ; U. Wand ; K. Wetzel. - Die Isotopenvariationen des Stickstoffs der Granite und Glimmerschiefer im Kontaktbereich eines Intrusivkörpers im Mittleren Erzgebirge / G. Stiehl ; D. Haendel ; U. Günther. - Isotopengeochemische, thermobarogeochemische und element-geochemische Untersuchungen an einer hydrothermalen Fluoritmineralisation im Südteil der DDR / G. Strauch ; H. Kämpf ; G. Stiehl ; R. Thomas ; M. Geisler ; G. Haase ; P. Vogler. - Anwendung der modifizierten Zelltheorie zur Berechnung von Zustandseigenschaften dichter isotopensubstituierter Fluide / H.-L. Vörtler ; J. Heybey. - Ein quantitatives Modell des Schwefelkreislaufes mit Berücksichtigung der Isotopenverhältnisse / G. Weise ; K. Wetzel. - Teilnehmerverzeichnis.
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  • 54
    Call number: AWI G6-18-91504
    Type of Medium: Dissertations
    Pages: 118, (38) S. , graph. Darst.
    Language: German
    Note: Göttingen, Univ., Diss., 1981 , INHALTSVERZEICHNIS: 1. EINLEITUNG. - 2. PROBENHERKUNFT UND STRATIGRAPHIE. - 3. PROBENBESCHREIBUNG. - 4. ANALYSENVERFAHREN. - 4.1. Messung des Gesamt- und organischen Kohlenstoffs der Proben. - 4.1.1. Messung des Gesamtkohlenstoffs. - 4.1.2. Messung des organischen Kohlenstoffs. - 4.1.3. Berechnung des Karbonatkohlenstoffs. - 4.2. Präparation und Messung der Isotope. - 4.2.1. Präparation für die Karbonatisotopenmessung. - 4.2.2. Präparation für die Corg-Isotopenmessung. - 4.2.3. Präparation für die CBit-Isotopenmessung. - 4.2.4. Durchführung der Isotopenmessung. - 4.3. Röntgenographische Methoden. - 4.3.1. Übersichtsaufnahmen. - 4.3.2. Röntgenographische Bestimmung des Calcit/Dolomit-Verhältnisses an Proben mit einem Karbonatanteil 〉 90 %. - 4.4. Chromatographische Methoden. - 4.4.1. Dünnschichtchromatographie. - 4.4.2. Gaschromatographie. - 4.5. Extraktionsverfahren. - 4.5.1. Soxhletextraktion. - 4.5.2. Ultraschallextraktion. - 4.5.3. Gegenüberstellung der beiden Extraktionsverfahren hinsichtlich ihrer Verwendbarkeit für organogeochemische Analysen. - 5. VERTEILUNG DES ORGANISCHEN KOHLENSTOFFS IM PHANEROZOIKUM. - 6. BESCHREIBUNG DER ERGEBNISSE DER ISOTOPENANALYSEN. - 6.1. Kohlenstoff- und Sauerstoffisotope der Karbonatfraktion. - 6.1.1. Kohlenstoffisotope des Karbonatkohlenstoffs. - 6.1.2. Sauerstoffisotope der Karbonatfraktion. - 6.1.2. Proben mit auffallend abweichenden Isotopenwerten. - 6.2. Isotopenmessungen am organischen Kohlenstoff. - 6.2.1. Definitionen. - 6.2.2. Kohlenstoffisotopenmessung am gesamten organischen Material. - 6.2.3. Die Kohlenstoffisotope der Bitumenfraktion. - 7. DISKUSSION DER ISOTOPENWERTE. - 7.1. Diskussion der Isotopenwerte des Karbonatkohlenstoffs. - 7.2. Diskussion der Isotopenwerte des Karbonatsauerstoffs. - 7.3. Diskussion einiger Karbonate mit von marinen Isotopenwerten abweichenden Ergebnissen. - 7.3.1. Proben mit ungewöhnlich niedrigen Kohlenstoff-Isotopenwerten. - 7.3.2. Proben mit sehr schweren δ18O-Werten. - 7.4. Diskussion der δ13C org- und der δ13CBit- Werte. - 7.4.1. Veränderungen der Isotopenzusammensetzung auf dem Wege vom lebenden Organismus zum sedimentären Kerogen und Bitumen und die Bedeutung der Photosynthese. - 7.4.2. Diskussion der Isotopenwerte. - 7.4.2.1. Ergebnisse der Isotopenmessungen am gesamten organischen Kohlenstoff (Corg). - 7.4.2.2. Ergebnisse der Isotopenmessungen der Bitumenfraktion. - 8. ERGEBNISSE UND DISKUSSION DER ORGANOGEOCHEMISCHEN ANALYSEN. - 8.1. Veränderungen in der chemischen Zusammensetzung der Biomasse auf dem Weg zum sedimentären organischen Material. - 8.2. Entstehung, Verteilung und Signifikanz der n-Alkane. - 8.2.1. Die Rolle der Fettsäure als n-Alkan Vorläufer. - 8.2.2. Umwandlung von Fettsäuren in n-Alkane. - 8.2.3. Charakteristische n-Alkan Verteilungsmuster. - 8.2.4. Der CPI-Wert. - 8.2.5.- Die Isoprenoide Pristan und Phytan. - 8.3. Diskussion der gaschromategraphischen Analysen. - 9. ZUSAMMENHÄNGE ZWISCHEN DEN ISOTOPENANALYSEN UND DEN ERGEBNISSEN DER ORGANOGEOCHEMISCHEN ANALYSE. - 10. ZUSAMMENFASSUNG. - 11. LITERATURVERZEICHNIS. - ANHANG.
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  • 55
    Call number: AWI G6-18-91505
    Type of Medium: Dissertations
    Pages: 146 S. , Ill., graph. Darst.
    Language: English
    Note: Groningen, Univ., Diss., 1983 , CONTENTS: INTRODUCTION. - CHAPTER 1. ANALYTICAL AND PREPARATIVE TECHNIQUES. - 1.1. Introduction. - 1.2. Isotope mass spectrometry of H, O and C. - 1.2.1. 2H analysis of H2. - 1.2.2. 18O and 13C analysis of CO2. - 1.3. Preparation of H2 from H2O and organic compounds. - 1.3.1. Combustion and reduction system. - 1.3.1.1. Automated vacuum taps. - 1.3.1.2. Automated cold trap. - 1.3.1.3. Automated combustion. - 1.3.1,4, Membrane pump. - 1.3.2. Performance and results. - 1.3.2.1. H2O samples. - 1.3.2.1. Organic samples. - 1.4. Preparation of CO2 from H2O and organic compounds. - 1.4.1. Introduction. - 1.4.2. Review of the available methods for extracting oxygen. - 1.4.3. Sealed nickel tube pyrolysis. - 1.4.3.1. Principle. - 1.4.3.2. Realization. - 1.4.3.3. Technical details. - 1.4.3.4. Results and calibration. - 1.4.3.5. 18O analysis of some organic pounds 1.4.3.5. δ2H of hydrogen produced by the SNTP method. - 1.5. Preparation of carbon dioxide for 13C analysis. - 1.6. Separation of cellulose from wood and peat. - 1.6.1. Introduction. - 1.6.2. Separation of cellulose from wood. - 1.6.3. Separation of cellulose from peat. - 1.6.4 Nitration and drying of cellulose. - CHAPTER 2. 18O FRACTIONATION BETWEEN CO2 AND H2O. - 2.1. Introduction. - 2.2. 18O analysis of H2O. - 2.3. Equilibration with CO2. - 2.4. Mass spectrometric analyses. - 2.5. Results anddiscussion. - CHAPTER 3. FACTORS AFFECTING THE 2H/1H AND 18O/16O RATIO OF PLANT CELLULOSE. - 3.1. Survey of factors affecting the 2H/1H and 18O/16O ratio. - 3.2. Isotopic composition of precipitation. - 3.3. Leaf-water isotopic enrichment. - 3.3.1. Theoretical. - 3.3.2. Measurement of leaf-water enrichment. - 3.3.2.1. Trees. - 3.3.2.2. Bog plants. - 3.4. Biochemical fractionation. - CHAPTER 4. 2H, 18O AND 13C VARIATIONS IN TREE RINGS. - 4.1. Introduction. - 4.2. Methods and material. - 4.3. Results and discussion. - 4.3.1. Intra-ring variations. - 4.3.1.1. Late wood. - 4.3.1.2. Differences between early wood and late wood. - 4.3.2. Inter-ring variations. - CHAPTER 5. 2H, 18O AND 13C VARIATIONS IN PEAT. - 5.1. Introduction. - 5.2. δ2H, δ18O and δ13C values of bog plants. - 5.2.1. Material and method. - 5.2.2. δ18O and δ2H. - 5.2.3. δ13C 5.3. Engbertsdijksveen I. - 5.3. Introduction. - 5.3.2. Description of the local vegetational succession. - 5.3.3. Cellulose preparation. - 5.3.4. The δ2H and δ18O record. - 5.4. Engbertsdijksveen VII. - 5.4.1. Introduction. - 5.4.2. Description of the local vegetational succession. - 5.4.3. The δ2H and δ18O record. - 5.4.4. The δ13C record. - 5.5. Comparison between Engbertsdijksveen I and VII. - 5.6. Conclusions. - Appendix. - REFERENCES. - SUMMARY. - SAMENVATTING. - ACKNOWLEDGEMENTS.
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  • 56
    Call number: ZSP-119-1
    In: Altenburger naturwissenschaftliche Forschungen, Heft 1
    Type of Medium: Series available for loan
    Pages: 171 Seiten , Illustrationen
    Series Statement: Altenburger naturwissenschaftliche Forschungen 1
    Language: German
    Note: INHALT 1. Einleitung und Überblick Historisches Glaziäre und periglaziäre Umwelt Tier, Pflanze, Mensch Frostmarken Bisherige Periglaziärstudien im Arbeitsgebiet Dank 2. Allgemeiner Teil 2.1. Die gegenwärtigen Frostgebiete der Erde und ihr wichtigster Formenschatz Entstehungsbedingungen des Dauerfrostbodens Geschlossene und unterbrochene Dauerfrostzone Bodeneisgehalt Bodeneistypen Frostbodenzerfall, Auftauboden (Mollisol) Thermoerosion, Thermoplanation, Thermokarst 2.2. Kryogenetische Prozesse und Erscheinungen Gelifraktion Kryoturbation (als wesentliche Erscheinung des Frostbodenzerfalls) 2.3. Auffrieroberflächenformen Erdhügel Gefrorene Torfhügel Palsen Pingos (Bulgunnjachi) 2.4. Frostrisse, insbesondere Eiskeile und ihre Pseudomorphosen 2.4.1. Allgemeine Bildungsbedingungen rezenter Frostrisse 2.4.2. Fossile Frostrisse (Spalten und Keile) 2.4.2.1. Vorkommen der fossilen Frostrisse 2.4.2.2. Frostrisse in den Schotterterrassen und anderen nichtbindigen Sedimenten (Typen, Formen, Genese, Verfüllungsprozeß, Datierung) 2.4.2.3. "Riesen-Frosttaschen" (Lehmstränge und -taschen) 3. Spezieller Teil 3.1. Grundzüge der Quartärentwicklung im Saale-Eibe-Gebiet 3.1.1. Frühpleistozän und Elstereiszeit 3.1.2. Holsteinwarmzeit 3.1.3. Saaleeiszeit 3.1.4.Eemwarmzeit 3.1.5. Weichseleiszeit 3.2. Kaltklimazeugen im Saale-Eibe-Gebiet (ohne solikinetische Strukturen) 3.2.1. Frühpleistozän bis Pliozän A-Schotter der Elbe Obere frühpleistozäne Terrasse Mittlere frühpleistozäne Terrasse Untere frühpleistozäne Terrasse 3.2.2. Elstereiszeit Zwickauer Phase Frühelsterterrasse Lauseuer Kliff Hohendorfer Becken Schmelzwassersande Miltitzer Zwischensediment Markraustädter Phase Gemischte Rückzugssedimente 3.2.3. Saaleeiszeit (Zeitzer und Leipziger Phase) Ältere und Jüngere Hauptterrasse Aufschlüsse Lochau, Leipzig-West, Delitzsch Schmelzwassersedimente Fließerdenkomplex 3.2.4. Weichseleiszeit Niederterrasse Sedimentfolge Ascherslebeuer See Löße 3.3. Fluviatile, solifluidale-deluviale und äolische Prozesse und Sedimente 3.3.1. Der Kanon der Flußarbeit im Periglazial 3.3.2. Solifluktions- und Abschwemmungsperioden, Periglazialseen Frühpleistozän Elstereiszeit Saaleeiszeit Weichseleiszeit 3.4. Talasymmetrie 3.5. Trockentäler 3.6. Solikinese (Bodenverdrängung, Bodenauftrieb) 3.6.1. Allgemeines 3.6.2. Dichtesaigerung 3.6.3. Ausgleichsbewegungen durch Belastungsunterschiede 3.6.4. Freie und erzwungene Solikinese 3.6.5. Solikinese minerogener Sedimente 3.6.6. Solikinese der Braunkohle 3.6.6.1. Solikinetische Erscheinungen außerhalb der Vereisungsgebiete 3.6.6.2. Solikinetische Erscheinungen im Saale-Elbe-Gebiet 3.6.6.2.1. Alter des Kohleaufstiegs 3.6.6.2.2. Ursachen des Kohleaufstiegs 3.6.6.2.3. Braunkohle, das Pendant des Salzes 3.6.6.2.4. Kohleaufstieg und Frosttiefe Zusammenfassung Summary Literaturauswahl Ortsverzeichnis Sachverzeichnis Bilderteil , Mit englischer Zusammenfassung
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  • 57
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    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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  • 58
    Series available for loan
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/8
    In: CRREL Report, 83-8
    Description / Table of Contents: In the course of model tests with urea-doped ice in the CRREL Ice Engineering Facility test basin, the growth process and the physical and mechanical properties of the model ice were investigated. The parameters which were varied were: urea concentration in the tank water, air temperature during growth, growth duration, and tempering time. Uniformity of ice thickness and ice mechanical properties over the whole tank area were found to be satisfactory. The structure of the urea-doped ice was found to be similar to that of the ice except for a relatively thick incubation layer over a dendritic bottom layer. Empirical relationships were established between: ice thickness and negative degree-hours; mechanical properties and growth temperature, urea concentration, and ice thickness; and reduction in mechanical properties and tempting time. The results of the study are presented in charts which permit reliable scheduling of model tests with required ice thickness and ice flexural strength.
    Type of Medium: Series available for loan
    Pages: vii, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 83-8
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Experimental facility and procedures Ice test basin Ice growth procedure Measurements Ice growth and structure Ice thickness distribution Ice growth during freeze-up Ice growth during warm-up Structure of urea-doped ice Mechanical properties of urea-doped ice Introductory remarks Model of a two-layer elastic material Properties of urea-doped ice during freeze-up Properties of urea-doped ice during warm-up Applications to test program scheduling Summary and conclusions Literature cited Appendix A: Results of ice thickness measurements for various growth conditions Appendix B: Properties of untempered ice Appendix C: Properties of tempered ice
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  • 59
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    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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  • 60
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/6
    In: CRREL Report, 83-6
    Description / Table of Contents: During the austral summers of 1976-77 and 1978-79, several ice cores were taken from the McMurdo Ice Shelf brine zone to investigate its thermal, physical and chemical properties. This brine zone consists of a series of super-imposed brine layers (waves) that originate at the seaward edge of the ice shelf and migrate at various rates, depending upon their age and position in the ice shelf. The brine in these layers becomes increasingly concentrated as the waves migrate inland through the permeable ice shelf firn. Chemical analyses of brine samples from the youngest (uppermost) brine wave show that it contains sea salts in normal seawater proportions. Further inland, deeper and older brine layers, though highly saline (S 〉 200 ‰), are severely depleted in SO2-4 with the SO2-4/Na+ ratio being an order of magnitude less than that of normal seawater. Analyses of Na+, K+, Ca2+, Mg2+, SO2-4 and CI-, together with solubility and temperature considerations, show that the sulfate depletion is due to selective precipitation of mirabilite, Na2SO4*10H2O. The location of the inland boundary of brine penetration is closely related to the depth at which the brine en-counters the firn/ice transition. However, a small but measurable migration of brine is still occurring in otherwise impermeable ice; this is attributed to eutectic dissolution of the ice by concentrated brine as it moves into deeper and warmer parts of the McMurdo Ice Shelf.
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    Pages: iii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-6
    Language: English
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  • 61
    Call number: ZSP-201-83/7
    In: CRREL Report, 83-7
    Description / Table of Contents: Peak power generation with hydropower creates tailwater flow conditions characterized by high and low flows with abrupt transitions between these states. Flows occurring in tailwaters typically form sharp-fronted, large-amplitude waves of relatively short period. An understanding of the mechanics of downstream propagation of these waves is important both for direct application in studies of the tailwater and because of the similarity of these waves to those following a dam break. An analysis of the dynamic equations of open channel flow is used to quantify the relative importance of flow wave convection, diffusion and dispersion in rivers. The relative importance of each process is re­lated to the relative magnitude of terms in the dynamic equations, providing a physical basis for model formulation. A one-dimensional diffusion wave flow routing model, modified for tailwaters, simulates the important physical pro­cesses affecting the flow and is straightforward to apply. The model is based upon a numerical solution of the kine­matic wave equation. The “modified equation,” Hirt, and von Neumann analyses are used to gain insight into the stability and dissipative and dispersive behavior of the numerical solution, and results of these analyses are compared. A set of linear routings is used to demonstrate the dissipative and dispersive behavior predicted by the analyses and to verify the accuracy of an expression that quantifies the numerical diffusion of the model. The analyses provide a basis for selection of numerical parameters for model applications. The capability and accuracy of the model are enhanced when physical wave diffusion is balanced by numerical diffusion in the model. Maintaining the diffusion balance re­quires that the time derivative weighting parameter 0 be variable and in some instances negative. Though some amount of phase error is introduced, negative 0 values have no adverse effect upon model stability. Field studies were con­ducted to demonstrate the benefits of careful model development and analysis, and to verify the diffusion wave model for rapidly varying tailwater flow. The bed slope and roughness characteristics of the field study reaches (below Apalachia and Norris Dams) differ greatly, spanning those of a large number of rivers of practical interest. The accurate simulation of flow in both of these tailwaters attests to the soundness of both the physical basis of the model and the numerical solution technique. The field studies confirm, for the extreme case of rapidly varying flow in a mildly sloped river, that inertia has a negligible effect upon unsteady flow waves at low Froude numbers. Additionally, these studies verify that diffusion of short-period waves in rivers is generally significant.
    Type of Medium: Series available for loan
    Pages: vi, 41 Seiten , Illustrationen
    Series Statement: CRREL Report 83-7
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Physical diffusion and dispersion in open channel flow Modeling approach Description of the diffusion wave flow routing model Analysis of the numerical model Modified equation and Hirt analyses of diffusion wave model von Neumann analysis of the diffusion wave model Linear case studies Accuracy considerations of the numerical solution Field studies Apalachia Dam tailwater Norris Dam tailwater Conclusions Literature cited
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  • 62
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/4
    In: CRREL Report, 83-4
    Description / Table of Contents: Measurements and analysis of seasonal ice growth and decay on Post Pond, New Hampshire, for the period 1973-1982 are presented. Observations included ice thickness measurements, examination of the various ice types contributing to the ice cover, and measurements of meteorological parameters for correlation with and modeling of the ice growth process. The overall nature of ice growth and decay (ice loss) on the Post Pond has been ascertained, the seasonal variability in the timing of freeze-up and ice-out and the duration of the ice cover have been determined, and the relationship of ice growth to freezing-degree-day (deg C) records evaluated on the basis of a Stefan conduction equation modified to deal with ice sheets covered with or free of snow. Ice growth occurs predominantly by the direct freezing of lake water, but snow ice may compose as much as 50% of the ice cover in winters with higher than average snowfall. Freeze-up leading to the establishment of a stable ice cover occurs during the 4-week period from the end of November to the end of December. Maximum seasonal ice thicknesses were from 45 to 67 cm and are generally attained during the first two weeks of March; ice-out, marking the final disappearance of ice from Post Pond, usually occurs by the third week of April. The overall rate of the ice loss is three to four times that of ice growth, and is dominated initially by melting from the top. As much as 50% of the ice may be lost in this way before the onset of any bottom melting. Final dissipation of the ice cover is usually expedited by candling resulting from preferential melting and disintegration of the ice at crystal boundaries.
    Type of Medium: Series available for loan
    Pages: iv, 30 Seiten , Illustrationen
    Series Statement: CRREL Report 83-4
    Language: English
    Note: CONTENTS Abstract Preface Introduction Location of study Study methods Ice thickness Ice-cover composition Surface air temperatures Freeze-up and ice-out characteristics Results and discussion Ice-growth record Freezing-degree-day records Ice-growth predictions Summary and conclusions Literature cited Appendix A: Ice-growth records Appendix B: Measured and computed ice-growth curves
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  • 63
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/2
    In: CRREL Report, 83-2
    Description / Table of Contents: A numerical model of rime ice accretion on an arbitrary two-dimensional airfoil is presented. The physics of the model are described and results are presented that demonstrate, by comparison with other theoretical data and experimental data, that the model predictions are believable. Results are also presented that illustrate the capability of the model to handle time-dependent rime ice accretion, taking into account the feedback between the ice accretion and the airflow and droplet trajectory fields.
    Type of Medium: Series available for loan
    Pages: vi, 81 Seiten , Illustrationen
    Series Statement: CRREL Report 83-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Methodology Potential flow around an arbitrary airfoil Incompressible velocity field Droplet trajectory equation Computational procedure for trajectories Determining the point of impact Calculation of collision efficiencies Accreting an ice layer Determining the accuracy of the flow field Determining the accuracy of the trajectories Results and discussion Comparing results with and without the history term Collision efficiency of NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 0° attack angle Conclusions and recommendations Literature cited Appendix A : Sample input Appendix B: Sample output Appendix C : Program listing
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  • 64
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/19
    In: CRREL Report, 83-19
    Description / Table of Contents: Small-scale laboratory experiments were conducted on model bridge piers in the CRREL test basin. The experiments were performed by pushing model ice sheets against structures and monitoring the ice forces during the ice/structure interaction. The parameters, varied during the test program, were the geometry of the bridge piers and the velocity, thickness, and flexural strength of the ice. The results are presented in the form of ice forces on sloping and vertical structures with different geometries. During ice action on sloping structures, a phenomenon of transition of failure mode from bending to crushing was observed as the ice velocity was steadily increased.
    Type of Medium: Series available for loan
    Pages: 17 Seiten , Illustrationen
    Series Statement: CRREL Report 83-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Tests Results Ice forces on inclined structures Transition of ice action due to velocity increase Aspect ratio Bridge pier nose geometry Conclusions Literature cited
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  • 65
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/16
    In: CRREL Report, 83-16
    Description / Table of Contents: The presence of snow on the ground can impose limitations on the mobility of wheeled and tracked vehicles. Snow depth and density are the two most easily measured snow properties that can be related to mobility over snow. Existing models of snowpack accumulation and ablation processes and models of internal snowpack structure were examined to determine if a model of the snowpack can be developed for use in predicting the snow parameters that affect mobility. Simple models, such as temperature index models, do not provide sufficient snowpack details, and the more detailed models require too many measured inputs. Components of the various models were selected from a basis of a snowpack model for predicting snow properties related to mobility over snow. Methods of obtaining the input data from some components are suggested, and areas where more development is needed are described.
    Type of Medium: Series available for loan
    Pages: 34 Seiten , Illustrationen
    Series Statement: CRREL Report 83-16
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Conversion of metric units Introduction Review of existing models Accumulation models Ablation models Using existing models for studying mobility Proposed snowpack model for mobility studies Model components Implementation of the model Developing input data Conclusions Literature cited
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  • 66
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/23
    In: CRREL Report, 83-23
    Description / Table of Contents: The problems associated with measuring stresses in ice are reviewed. Theory and laboratory test results are then presented for a stiff cylindrical sensor made of steel that is designed to measure ice stresses in a biaxial stress field. Loading tests on freshwater and saline ice blocks containing the biaxial ice stress sensor indicate that the sensor has a resolution of 20 kPa and an accuracy of better than 15% under a variety of uniaxial and biaxial loading conditions. Principal stress directions can also be determined within 5 degrees. The biaxial ice stress sensor is not significantly affected by variations in the ice elastic modulus, ice creep or differential thermal expansion between the ice and gauge. The sensor also has a low temperature sensitivity (5 kPa/deg C).
    Type of Medium: Series available for loan
    Pages: 38 Seiten , Illustrationen
    Series Statement: CRREL Report 83-23
    Language: English
    Note: CONTENTS Abstract Preface Introduction Previous work Stress measurements Design considerations Stress sensors Biaxial ice stress sensor Biaxial stress sensor theory Gauge deformation Stresses associated with cylindrical sensors Determination of ice stresses Gauge calibration Evaluation of the biaxial ice stress sensor Temperature sensitivity Biaxial loading test equipment Biaxial loading test results Differential thermal expansion Long-term drift Discussion of test results Conclusions Literature cited
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  • 67
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/26
    In: CRREL Report, 83-26
    Description / Table of Contents: Ice accreted on high-speed rotors operating in supercooled fog can be thrown off by centrifugal force, creating severe unbalance and dangerous projectiles. A simple force balance analysis indicates that the strength of accreted ice and its adhesive strength can be obtained by measuring the thickness of the accretion, the location of the separation, the rotor speed, and the density. Such an analysis was applied to field and laboratory observations of self-shedding events. The results agree reasonably well with other observations.
    Type of Medium: Series available for loan
    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-26
    Language: English
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  • 68
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/30
    In: CRREL Report, 83-30
    Description / Table of Contents: Ice sheets are formed and retained in several ways in nature, and an understanding of these factors is needed before most structures can be successfully applied. Many ice sheet retention structures float and are somewhat flexible; others are fixed and rigid or semirigid. An example of the former is the Lake Erie ice boom and of the latter, the Montreal ice control structure. Ice sheet retention technology is changing. The use of timber cribs is gradually but not totally giving way to sheet steel pilings and concrete cells. New structures and applications are being tried but with caution. Ice-hydraulic analyses are helpful in predicting the effects of structures and channel modifications on ice cover formation and retention. Often, varying the flow rate in a particular system at the proper time will make the difference between whether a structure will or will not retain ice. The structure, however, invariably adds reliability to the sheet ice retention process.
    Type of Medium: Series available for loan
    Pages: iv, 39 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 83-30
    Language: English
    Note: Contents Abstract Preface Introduction Natural ice sheets Choosing an ice control structure Flexible structures Ice booms Frazil collector lines Fence booms Rigid or semirigid structures Pier-mounted booms Stone groins Artificial islands Removable gravity structures Timber cribs Weirs Pilings and dolphins Structures built for other purposes Hydroelectric dams Wicket dams Light piers and towers Bridge piers Breakwaters Ice control not using Structures Channel improvements Ice sheet tying Ice sheet bridges Conclusions Literature cited Appendix A: Ice control structure
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  • 69
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/31
    In: CRREL Report, 83-31
    Description / Table of Contents: A mathematical model is described that is used to determine the maximum ice conveyance capacity of a river channel. Based upon this model, computer programs were developed that enable the ice discharge to be calculated for steady-state flow conditions. For rivers that have uniform flow, the maximum ice-conveying capacity can be described with a simple function expressed in terms of the size of the ice fragments, channel geometry, and the flow of water in the river. For nonuniform flows, the computer program determines the elevation profile of the surface layer in addition to other flow characteristics, such as the velocity and surface concentration of the ice fragments. The location along this surface profile where the ice conveyance capacity becomes less than the upstream supply is determined and is considered to be the position where a surface ice jam or ice bridge will be formed.
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    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 83-31
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Constitutive relationships Equations of motion Uniform flow Nonuniform flow Ice transport: Uniform flow Symmetric channel Asymmetric channel Ice transport: Nonuniform flow Further considerations Basis for model improvement Conclusions Literature cited
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  • 70
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/12
    In: CRREL Report, 81-12
    Description / Table of Contents: Revegetation techniques along the trans-Alaska pipeline as employed by Alyeska Pipeline Service Company during the 1975-1978 summers were observed. Objectives included determining the success of treatments, identifying problem areas, and noticing long-term implications. Observations and photographs at 60 sites located along the trans-Alaska pipeline indicated frequent occurrence of successful revegetation as well as frequent problems, such as erosion, slope instability, poor scheduling of seed application, occurrence of weed species, failure to optimally reuse topsoil and fine-grained soil, and low rates of native species reinvation. Alyeska's visual impact engineering was observed to be very successful, as shown by high first-season survival. However, a related program for establishing willow cuttings was unsuccessful in 1977 but appeared very promising in 1978 largely due to improved management and more favorable growing conditions. Terrain disturbances due to the construction of the fuel gas line, snowpads, and oil spills were examined to identify and describe related environmental impacts on natural vegetation. Proper construction and use of snowpads minimized the extent and severity of disturbance. Crude oil spills, although damaging to vegetation did not cause total kill of vegetation, and certain types of spills may have only short-term effects. Results of restoration research by CRREL along the trans-Alaska pipeline are discussed.
    Type of Medium: Series available for loan
    Pages: 115 Seiten , Illustrationen
    Series Statement: CRREL Report 81-12
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Revegetation procedures 1975-1978 construction seasons Willow cutting program Visual impact engineering program Selected terrain disturbances Fuel gas line and snowpads Island Lake and oil line snowpads Oil spills and revegetation CRREL restoration sites Conclusions Recommendations Literature cited Appendix A: List of sites observed during 1975 Appendix B: Annotated photographs of permanent revegetation observation sites-1975-1978 Appendix C: Photographic record of fuel gas line observation sites
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  • 71
    Call number: ZSP-201-81/15
    In: CRREL Report, 81-15
    Description / Table of Contents: This report analyzes the results of a field study previously reported by Scrivner et al. (1969) for the National Cooperative Highway Research Program. These authors studied the seasonal pavement deflection characteristics of 24 test sites on roads in service in regions with freezing indexes ranging from 100 F-days to 2100 F-days. They used the Dynaflect cyclic pavement loading device to determine the pavement system response. Of specific interest to my analysis was the increased pavement deflection after freezing and thawing and the time to recovery of normal deflection characteristics. These characteristics were related to soil and climatic factors using statistical techniques. The most significant observations of this statistical analysis are: (1) that the freezing index is not a significant parameter in determining the percent increase in pavement deflection during thawing, and (2) that the recovery time is inversely proportional to the depth of freezing. As was expected, the most significant variable affecting the increase in pavement deflection was the frost susceptibility classification. This observation reinforces the necessity for careful selection of soil materials used in pavement systems.
    Type of Medium: Series available for loan
    Pages: v, 10 Seiten , Ilustrationen
    Series Statement: CRREL Report 81-15
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Description of test site Test results Method of analysis Results of analysis Change in resilient deflection due to thawing, A Recovery time after onset of thawing, t20 Discussion of results Change in resilient deflection due to thawing, A. Recovery time after thawing, t20 Conclusions Literature cited ILLUSTRATIONS Figure Pavement deflection and frost penetration vs time Data points and regression line for A and t2 0 versus F Data points and regression line for A and t2 0 versus W Data points and regression line for A and t2 0 versus I Data points and regression line for A and t20 versus N Data points and regression line for A and t20 versus D Data points and regression line for t20 versus A Permeability vs void ratio for the Toledo Penn 7 material TABLES Properties of test sections Test results from Scrivner et al Results of regression analysis
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  • 72
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-81/16
    In: CRREL Report, 81-16
    Description / Table of Contents: An air-transportable shelter designed and built at CRREL for use in cold regions underwent testing in Hanover, New Hampshire, and Ft. Greely, Alaska. The shelter demonstrated some of its capabilities for mobility by being towed for more than 60 miles behind various vehicles and by being transported on a C-130 cargo airplane, a CH-47 helicopter, and a trailer truck. The shelter proved to be very easy for a crew of two to four to set up in all weather conditions including -40 F cold. However, the gasoline-powered generator, which was a source for space heat as well as electricity, functioned very poorly. Overall, the prototype successfully demonstrated qualities of self-reliance, ease of operation and thermal efficiency.
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    Pages: v, 20 Seiten , Illustrationen
    Series Statement: CRREL Report 81-16
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion factors Summary Introduction Description of shelter Test procedures and results Mobility Ease of erecting and striking Therinal efficiency and performance Heat output Electrical system Habitation Safety features Water system Shelter reliability Structure Performance of other shelters Conclusions Future studies Literature cited
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  • 73
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-81/17
    In: CRREL Report, 81-17
    Description / Table of Contents: Environmental conditions are described for the continental shelf of the western Arctic, and for the shelf of Labrador and Newfoundland. Special emphasis is given to the gouging of bottom sediments by ice pressure ridges and icebergs, and an approach to systematic risk analysis is outlined. Protection os subsea pipelines and cables by trenching and direct embedment is discussed, touching on burial depth, degree of protection, and environmental impact. Conventional land techniques can be adapted for trenching across the beach and through the shallows, but in deeper water special equipment is required. The devices discussed include hydraulic dredges, submarine dredges, plows, rippers, water jets, disc saws and wheel ditchers, ladder trenchers and chain saws, routers and slot millers, ladder dredges, vibratory and percussive machines, and blasting systems. Consideration is given to the relative merits of working with seabed vehicles, or alternatively with direct surface support from vessels or from the sea ice
    Type of Medium: Series available for loan
    Pages: 38 Seiten , Illustrationen
    Series Statement: CRREL Report 81-17
    Language: English
    Note: CONTENTS Abstract Preface Introduction The western Arctic of North America The continental shelf of Newfoundland and Labrador Burial depth for pipes and cables Degree of protection offered by burial Environmental impact Trenching the beach and the shallows in the western Arctic Trenching beyond the shallows Suction, or hydraulic, dredging Bottom-t raveling cutterhead dredges Plows Rippers Water jets Subsea disc saws and wheel ditchers Subsea ladder trenchers and chain saws Subsea routers and slot millers Bucket ladder trenchers Vibratory and percussive devices Hard rock excavation under water Control and monitoring of subsea machines Vessels and vehicles Trenching from the sea ice Costs of subsea trenching Reference Appendix: Description of waters off Alaska and Newfoundland
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  • 74
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    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.
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    Pages: 11 Seiten , Illustrationen
    Series Statement: CRREL Report 81-03
    Language: English
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  • 75
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    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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  • 76
    Call number: ZSP-201-81/1
    In: CRREL Report, 81-01
    Description / Table of Contents: Abstract: The formation of ice jams and their meteorological indicators were studied in detail for the winters of 1975-76, 1976-77 and 1977-78 on the Ottauquechee River at and east of Woodstock, Vermont. Meteorological data are presented for nearby National Weather Service Co-Operative Stations as well as for CRREL sites on the Ottauquechee River. The severity of each winter is discussed, as are the effects of a heavy rainfall on a high water equivalent snow cover. The resultant runoff and subsequent ice jamming that occurs is discussed. Continuous monitoring of water temperature before, during and immediately after an ice cover formed on the river during the winter of 1977-78 is included. The report includes a section on warm sewer outfall effects on the ice at and below a municipal treatment plant. Retrieved data will assist in future modeling studies to help predict ice formation, growth, decay and jamming of river ice covers.
    Type of Medium: Series available for loan
    Pages: iv, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 81-01
    Language: English
    Note: CONTENTS Abstract Preface Introduction Meteorological data retrieval and measurements Meteorological effects on river ice cover Winter 1975-76 Winter 1976-77 Winter 1977-78 Analysis of ice formation and decay Mechanism of ice formation Ice growth and decay on the Ottauquechee River, 1975-76, 1976-77, 1977-78 Influence of warm sewage effluent on river water temperatures and ice conditions Conclusions Literature cited Appendix A: Climatological observations Appendix B: Ice conditions, field remarks and pertinent photography
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  • 77
    Call number: ZSP-201-81/6
    In: CRREL Report, 81-6
    Description / Table of Contents: Abstract: A procedure is described for monitoring the microfracturing activity in ice plates subjected to constant loads. Sample time records of freshwater ice plate deflections as well as corresponding total acoustic emission activities are presented. The linear elastic, as well as viscoelastic, response for a simply supported rectangular ice plate is given. Suggested future work using the above procedure is discussed.
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    Pages: iv, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 81-6
    Language: English
    Note: CONTENTS Abstract Preface Notation Introduction Experimental procedure and considerations Growth of the ice plate Support of the ice plate Acoustic emission monitoring system Displacement transducers and data recording Mechanical loading System Analysis Experimental results Thin section analysis Summary and discussion Literature cited Appendix A : Ice plate linear elastic response Appendix B: Acoustic emission system sensitivity Appendix C: Ice plate linear viscoelastic response Appendix D: Equipment list
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  • 78
    Monograph non-lending collection
    Monograph non-lending collection
    [Berlin : Springer]
    Associated volumes
    Call number: AWI PY-90-0189
    In: Naturwissenschaftliche Monographien und Lehrbücher ; 8, Bd. 8
    In: Einführung in die Geophysik ; 2, Bd. 2
    Type of Medium: Monograph non-lending collection
    Pages: 168 S , Ill., graph. Darst
    Edition: Sonderabdr.
    Series Statement: Naturwissenschaftliche Monographien und Lehrbücher 8
    Language: German
    Note: Inhaltsverzeichnis: Einleitung. - Instrumentelles. - Grundbegriffe. - Natürliche Magnete, künstliche Magnete und künstliche Magnetfelder. - Die gegenseitige Einwirkung zweier Magnete. - Grundlagen der Messung der erdmagnetischen Elemente. - Die Bestimmung der Deklination. - Die Bestimmung der Inklination. - Die Bestimmung der Horizontalintensität. - Absolute und relative Messungen. - Beobachtung der zeitlichen Variationen. - Das beharrliche Magnetfeld der Erde. - Allgemeines. - Kartographische Darstellung. - Darstellung der Reihenentwicklungen. - Das quasi-homogene Magnetfeld der Erde. - Das Feld der höheren Glieder. - Das überbleibende Feld. - Die säkulare Variation des beharrlichen Feldes. - Innere und äußere Kräfte. - Der potentiallose Anteil des Gesamtfeldes. - Erklärungsversuche des erdmagnetischen Feldes. - Das beharrliche Feld in einzelnen Ländern. Allgemeines über Landesaufnahmen. - Verteilung des Erdmagnetismus in Europa. - Zusammenhang der Anomalien mit dem Bau des Untergrundes. - Ursachen der Anomalien. - Die Fernwirkung störender magnetischer Massen. - Praktische Lösungen der Aufgabe. - Magnetische Störungen und Schwerestörungen. - Der Magnetismus der Sonne. - Die zeitlichen Variationen. - Der tägliche Gang. - Die Mondvariationen. - Die Störungen. - Theorie der Elektronenbahnen nach der Erde. - Aktivität, Ringstrom, äußerer Anteil der Sälularvariation. - Zusammenhang mit der Sonnentätigkeit. - Der innere Anteil der Variationen: Erdstrom. - Über die Verbindung erdmagnetischer Variationen mit erdelektrischen. - Das Polarlicht. - Allgemeines. - Verteilung über die Erde. - Verteilung am Himmelsgewölbe. - Verteilung in der Höhe. - Birkeland-Störmersche Theorie des Polarlichts. - Spektrum des Polarlichts. - Birkelands Versuche.
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  • 79
    Call number: AWI G6-18-91535
    Type of Medium: Dissertations
    Pages: Getr. Zählung: Ill., graph. Darst.
    Language: German
    Note: Karlsruhe, Univ., Diss., 1981 , INHALT: Zusammenfassung. - 1. Einleitung. - 1.1 Stand der Carbonatitforschung: experimentelle Untersuchungen und Bildungshypothesen. - 1.2 Mikrothermische Untersuchungen an fluiden Einschlüssen in Carbonatitmineralen. - 1.3 Der Carbonatit des Kaiserstuhls. - 1.4 Problemstellung, Methodisches. - 2. Das Probenmaterial. - 2.1 Proherrnahme und Aufbereitung. - 2.2 Probenpräparation für die Einschlußuntersuchungen. - 2.3 Optische Untersuchung, Phänomenologie. - 2.31 Anordnung, Verwachsungen und Habitus der Apatite. - 2.32 Die Einschlüsse der Apatite. - 2.321 Cavitätenformen, Füllungen, Dimensionen. - 2.322 Kriterien für primäre Einschlußbildung und sekundäre Veränderungen. - 2.323 Unterschiedliche Einschlußführung in Apatiten und anderen Mineralen. - 3. Apparaturen. - 3.1 Die mikrothermische Apparatur. - 3.11 Konzeption und Ausführung des Beiz-Kühltisches. - 3.12 Eichung des Beiz-Kühltisches. - 3.13 Präzision und Probleme im Meßbetrieb. - 3.2 Kühlplatte. - 3.3 Quetschtisch. - 4. Zur Theorie der Einschlußuntersuchungen. - 4.1 Geometrische Berechnungen. - 4.11 Berechnung des Cavitätenvolumens. - 4.12 Fehlerdiskussion. - 4.13 Grenzen der optischen Auflösung. - 4.2 Zur Theorie der Phasenverhältnisse. - 4.21 Einschlußbildung und Phasentrennung. - 4.22 Phasenverhältnisse in Einkomponentensystemen, Homogenisierungskurven. - 4.23 Phasenverhältnisse in Wasser-Salz-Systemen: H2O-NaCl; H2O-NaCl-KCl. - 4.24 Phasenverhältnisse in Wasser-Gas-Systemen: CO2-H2O. - 5. Konstruktion der Phasendiagramme. - 5.1 H2O. - 5.2 CO2. - 5.3 H2O-NaCl. - 5.4 CO2-H2O. - 5.5 Wasser-Salzsysteme mit kritischen Endpunkten (PQ-Systeme). - 5.6 Wasser-Salzsysteme bei stark positivem Temperaturkoeffizient der Löslichkeit der Salzkomponente: H2O-KCl, H2O-NaCl-KCl. - 5.7 System CO2-H2O-NaCl. - 6. Untersuchungsergebnisse. - 6.1 Experimentelle Untersuchungen an einzelnen Einschlüssen: Mikrothermometrie und destruktive Methoden. - 6.11 Einphasige Einschlüsse mit Gasfüllung. - 6.12 Calcit als Einphaseneinschluß im Apatit. - 6.13 Zweiphaseneinschlüsse L+V. - 6.14 Dreiphaseneinschlüsse LH2O + LCO2 +V. - 6.15 Einschlüsse mit übersättigten Lösungen (Multiphaseneinschlüsse). - 6.16 Fluide Einschlüsse im Calcit des Carbonatits. - 6.2 Analytische Untersuchungen. - 6.21 Kationen und Anionen in wäßrigen Extrakten des Apatitmahlgutes. - 6.22 Bitumenphasen in organischen Solventextrakten. - 6.23 Gasanalytische Messungen. - 7. Genetische Interpretation der Einschlußresultate. - 7.1 Das Subsystem H2O-Salzphasen. - 7.11 H2O-NaCl. - 7.12 H2O-NaCl-Na2SO4/Na2CO3. - 7.13 H2O-NaCl-KCl. - 7.2 Druckmodelle im seichten, subvulkanischen Niveau. - 7.21 Hydrostatische Bedingungen. - 7.22 Lithostatische Bedingungen. - 7.3 Das Subsystem CO2-H2O 7.4 Kombination der Teilsysteme, das System CO2-H2O-NaCl bei volumenkontrollierten Bedingungen. - 7.5 Zusammenfassung und Vergleich mit den Resultaten aus anderen Carbonatitlokalitäten. - 8. Petrogenetische Schlußfolgerungen. - 8.1 Magmatische Carbonatitintrusion und autometasomatische Folgeprozesse. - 8.2 Hydrothermaltransport des Calcits. - 8.3 Überlegungen zur Herkunft der Salzphasen. - 8.4 Künftige, weiterführende Untersuchungen. - 8.5 Zusammenfassung. - 9.0 Anhang I Abbildungen. - 10.0 Anhang II Originalmeßwerte.
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  • 80
    Call number: ZSP-201-83/21
    In: CRREL Report, 83-21
    Description / Table of Contents: The probability density function of the gouge depths into the sediment is represented by a simple negative exponential over four decades of gouge frequency. The exceedance probability function is, therefore, e to the -lambda d, where d is the gouge depth in meters and lambda is a constant. The value of lambda shows a general decrease with increasing water depth, from 9/m in shallow water to less than 3/m in water 30 to 35 m deep. The deepest gouge observed was 3.6 m, from a sample of 20,354 gouges that have depths greater than or equal to 0.2 m. The dominant gouge orientations are usually unimodal and reasonably clustered, with the most frequent alignments roughly parallel to the general trend to the coastline. The value of N(bar) sub 1, the mean number of gouges (deeper than 0.2 m) per kilometer measured normal to the trend of the gouges, varies from 0.2 for protected lagoons to 80 in water between 20 and 38 m deep in unprotected offshore regions. The distribution of the spacings between gouges as measured along a sampling track is a negative exponential. The form of the frequency distribution of N sub 1 varies with water depth and is exponential for lagoons and shallow offshore areas, previously skewed for 10 to 20 m depths off the barrier islands, and near-normal for deeper water. As a Poisson distribution gives a reasonable fit to the N sub 1 distributions for all water depths, it is suggested that gouging can be taken as approximating a Poisson process in both space and time. The distributions of the largest values per kilometer of gouge depths, gouge widths, and the heights of the lateral embankment of sediments plowed from the gouges are also investigated.
    Type of Medium: Series available for loan
    Pages: 40 Seiten , Illustrationen, 1 Karte
    Series Statement: CRREL Report 83-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background and environmental setting Data collection and terminology Data analysis Gouge depths Gouge orientation Gouge frequency Extreme value analysis Applications to offshore design Gouge depth Extreme value statistics Burial depths Conclusion Literature cited Appendix A: Detailed bathymetric map of the Alaskan portion of the Beaufort Sea
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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-201-83/12
    In: CRREL Report, 83-12
    Description / Table of Contents: This paper documents the development and verification of two finite difference models that solve the general two-dimensional form of the heat conduction equation, using the alternative-direction implicit method. Both can handle convective, constant flux, specified temperature and semi-infinite boundaries. The conducting medium may be composed of many materials. The first program, ADI, solves for the case where no change of state occurs. ADIPC solves for case where a freeze/thaw change of phase may occur, using the apparent heat capacity method. Both models are verified by comparison to analytical results.
    Type of Medium: Series available for loan
    Pages: 74 Seiten , Illustrationen
    Series Statement: CRREL Report 83-12
    Language: English
    Note: CONTENTS Abstract Preface Introduction Finite differences applied to heat transfer Heat conduction equation Boundary conditions Phase change Computer program ADDATA, the data subroutine TRIDIG, the matrix solver ISOTHM, the isotherm finider ADI, main program ADEPC, main program Verification of ADI Comparison of ADI with analytical results Comparison of ADI with experimental results Verification of ADIPC Comparison of ADIPC with analytical results-the Neumann solution Comparison of ADIPC with analytical results-two-dimensional phase change verification User instruction for ADI User instruction for ADIPC Conclusions Literature cited Appendix A. Program INFSUM and sample input and output for program ADI Appendix B. Program ADIPC and sample input and output
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  • 82
    Call number: ZSP-201-83/14
    In: CRREL Report, 83-14
    Description / Table of Contents: An analysis of ice fracture that incorporates dislocation mechanics and linear elastic fracture mechanics is discussed. The derived relationships predict a brittle to ductile transition in polycrystalline ice under tension with a Hall-Petch type dependence of brittle fracture strength on grain size. A uniaxial tensile testing technique, including specimen preparation and loading system design was developed and employed to verify the model. The tensile strength of ice in purely brittle fracture was found to vary with the square root of the reciprocal of grain size, supporting the relationship that the theory suggests. The inherent strength of the ice lattice and the Hall-Petch slope are evaluated and findings discussed in relation to previous results. Monitoring of acoustic emissions was incorporated in the tests, providing insights into the process of microfracture during ice deformation.
    Type of Medium: Series available for loan
    Pages: 43 Seiten , Illustrationen
    Series Statement: CRREL Report 83-14
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Development of testing technique Test specimens Tensile testing Compression testing Experimental results Tensile tests Compression tests Discussion Conclusions Suggestions for further work Literature cited Appendix A: Additional information on seed grains Appendix B: Thin-sectioning procedure Appendix C: Displacement transducer calibration
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  • 83
    Call number: ZSP-201-83/22
    In: CRREL Report, 83-22
    Description / Table of Contents: A new experimental method for measuring the soil-water diffusivity of frozen soil under isothermal conditions is introduced. The theoretical justification of the method is presented and the feasibility of the method is demonstrated by experiments conducted using marine-deposited clay. The measured values of the soil-water diffusivity are found comparable to reported experimental data.
    Type of Medium: Series available for loan
    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-22
    Language: English
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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-201-83/25
    In: CRREL Report, 83-25
    Description / Table of Contents: Ice action on two cylindrical and conical structures, located side by side, was investigated in a small-scale experimental study to determine the interference on the ice forces generated during ice-structure interaction. The proximity of the two structures changes the mode of ice failure, the magnitude and direction of ice forces on the individual structure, and the dominant frequency of ice force variations. Interference effects were determined by comparing the experimental results of tests at different structure spacings.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 83-25
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Experimental setup and procedure Results and discussion Cylindrical structures Conical structures Conclusions Literature cited Appendix A: Relationship between flexural strength and in-situ unconfined compressive strength Appendix B: Test data
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  • 85
    Call number: ZSP-980-80
    In: ZfI-Mitteilungen, Nr. 80
    Type of Medium: Series available for loan
    Pages: 158 Seiten , Illustrationen
    Edition: als Manuskript gedruckt
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 80
    Language: German , Russian , English
    Note: Inhaltsverzeichnis: ZUSAMMENFASSUNGEN DER VORTRÄGE. - Beiträge der Isotopengeologie zur Aufklärung des kontinentalen Wachstums / K. Wetzel. - Ein quantitatives Modell des Schwefelkreislaufes mit Berücksichtigung der Isotopenverhältnisse / G. Weise, K. Wetzel. - Die Prozesse der Stoffumwandlungen in den Anfangsstadien der Erbildung und die Isotopenzusammensetzung des endogenen Stickstoffs / W. F. Wolynez. - Problema juvenil'nosti v izotopnoj geologii / Ju. A. Borščevskij. - Zur Theorie von Isotopenaustauschgleichgewichten in komplizierten natürlichen Systemen / R. Haberlandt, G. Christoph. - Zur Berechnung und Interpretation natürlicher Isotopenvariationen in Alumosilikaten / G. Christoph. - The use of statistical mechanical perturbation theory for the calculation and interpretation of isotopic fractionation factors / M. Wolfsberg. - Relationship between anomalies in the relative abundance of 18O, 17O, 16O and anomalies in the temperature dependence of isotopic fractionation factors / M. Wolfsberg. - Metod rasčeta izotopnych effektov v prirodnych mineralach po približennoj modeli "Razdel'nych Kolebanin" / S. I. Gol'šev, N. L. Padalko. - Intramolekulare Sauerstoffisotopengeothermometrie an Hydrosilicaten / H. Schütze. - Der 18O-Index. Ein isotopengeochemisches Konzept / H. Schütze. - Matematičeskii analiz frakcionirovanija izotopov ugleroda v živoi kletke / A. A. Ivlev. - Anwendung der modifizierten Zelltheorie zur Berechnung von Zustandseigenschaften dichter isotopensubstituierter Fluide / H.-L. Vörtler, J. Heybey. - Statistisch-mechanische Behandlung der Unterschiede im Adsorptionsverhalten isotopischer Spezies / H. Heybey, H.-L. Vörtler. - Theoretische Untersuchungen zu Adsorptionsisotopieeffekten von Erdgaskomponenten unter erhöhten Drücken / J. Heybey, P. Harting. - Experimentelle Untersuchungen zu speziellen Adsorptionsisotopieeffekten unter geologischen Bedingungen / P. Harting, K. Weingart, H. Heybey. - Die Isotopenzusammensetzung (O, H, C, S, N) des Erdmantels / H. Hoefs. - Neodym- und Strontiumisotope und ihre Anwendung auf TR-Mineralisation / S. B. Brandt, W. S. Lepin, W. N. Solodjankina, T. I. Kolosnizyna. - Zur Veränderung der isotopischen Zusammensetzung des Sauerstoffs von Cherts und Carbonaten im Prozess der Diagenese/Metamorphose / O. Gebhardt, H. Schütze. - The isotopic study of Boron in the process of formation of ore deposits / V. I. Ustinov, V. A. Grinenko, S. M. Aleksandrov, T. R. Ivanova. - Temperaturnyj profil' redkometal'nogo mestoroždenija po izotopno-kislorodnym dannym / Ju. A. Borščevskij, S. N. Gavrikova, N. I. Medvedovskaja, V. Ja. Fedčuk. - Biogennye faktory forminrovanija izotopnogo sostava ugleroda organičeskogo veščestva porod facial'no-genetičeskogo tipa / A. A. Ivlev, R. G. Pankina, M. V. Dachnova. - Izotopnyj sostav ugleroda frakcij nefti i organičeskogo veščestva porod / M. G. Frik, Ė. M. Galimov. - Stable isotope ratios in natural gas components separated by gas chromatography / G. Hut. - C-Isotopenuntersuchungen zur Entwicklung des Altpaläozoikums im Thüringischen Schiefergebirge / K. Hahne, I. Maaß, H. Lützner, J. Ellenberg, F. Falk, E. Grumbt. - Isotopengeochemische, thermobarogeochemische und elementgeochemische Untersuchungen an einer hydrothermalen Fluorit-Mineralisaton aus dem Südteil der DDR / G. Strauch, H. Kämpf, R. Thomas, M. Geisler, G. Haase, G. Stiehl. - Untersuchungen zur Isotopenfraktionierung des Stickstoffs in den Systemen NH4+/NH3 und N3- /N2 / H.-M. Nitzsche, G. Stiehl. - δ15N-Profile in der Bodenzone und ihre zeitlichen Veränderungen / H. Hübner. - Izotopnyj sostav ugleroda karbonatov v mestoroždenijach samorodnoj sery / V. I. Kityk, B. I. Srebrodol'skij. - Untersuchungen zur Fraktionierung der Schwefelisotope bei der chemischen und biochemischen Oxydation von Sulfid zu Sulfat / I. Maaß, J. Heyer, K. Wetzel, G. Weise. - Selective determination of quantitative and isotopic composition of sulphur-minerals associations / V. I. Ustinov, V. A. Grinenko. - Untersuchungen zur CO2-Resorption aus thermoindifferenten Kohledioxidmineralwasserbädern durch die Haut des Menschen / G. Hübner, I. Maaß, C. Epperlein, G. Plötner, H. Jordan. - Frakcionirovanie izotopov ugleroda metanobrazujušimi bakterijami pri ich roste na različnych substratach / M. V. Ivanov, S. S. Beljaev, A. M. Ėjakun, V. A. Boidar', K. S. Laurinavičus, O. V. Šipin. - Izotopnyj sostav ugleroda metana, obrazuemogo mikroorganizmami v prirode / M. V. Ivanov, K. S. Laurinavičus, V. A. Bondar', S. S. Beljaev. - Isotopenhydrologische Untersuchungen - Arbeiten aus dem GSF-Institut für Radiohydrometrie / H. Moser. - Tritium im Niederschlag Antarktikas - Aussagen zur globalen Verteilung / D. Herbert. - Untersuchung der Beziehung der Deuteriumkonzentration zwischen atmosphärischem Wasserdampf und Niederschlägen im Gebiet der Schirmacheroase / Ostantarktis / P. Kowski. - Isotopenhydrologische und hydeochemische Charakterisierung von Seen im Gebiet der Schirmacher-Oase, Ostantarktika / W. Richter, U. Wand, G. Strauch, P. Kowski, W. Kurze. - Isotopenglaziologische Untersuchungen zur Klärung der Herkunft des Inlandeiskörpers südlich der Schirmacheroase / Ostantarktis / W.-D. Hermichen, P. Kowski. - Carbon-13 in atmospheric CO2: 1977-1981 / W. G. Mook, C. D. Keeling. - Anwendung von H2 18O auf ökologische und pflanzenphysiologische Fragestellungen / H. Förstel. - Komplexe Isotopenuntersuchungen an armenischen Mineralwässern / R. Trettin, A. Hiller, E. S. Chalatjan. - Die isotope Zusammensetzung des Kristallwassers von Carnalliten und ihrer Ausgangslösungen / H.-D. Schmiedl, K. Koch, T. Böttger, G. Stiehl, J. Pilot. - Zur hydrologischen Interpretation von Isotopendaten im Zusammenhang mit Stofftransportvorgängen / H. Jordan, D. Hebert, K. Fröhlich, R. Gellermann, R.-P. Schols. - Zwei neue Standards zur massenspektrometrischen Isotopenhäufigkeitsbestimmung von Wasserstoff, Kohlenstoff und Sauerstoff im Bereich natürlicher Häufigkeiten / M. Herrmann, H. Gerstenberger. - Methoden der chemischen Konzentrierung und Identifizierung bei der Suche nach seltenen Radionukliden in der Natur / H. Bruchertseifer. - Die Anwendung der ultraempfindlichen Massenspektrometrie zur Isotopenanalytik / H.-J. Dietze, S. Becker. - Möglichkeiten des Nachweises superschwerer Elemente mit massenspektrometrischen Methoden / S. Becker, H.-J. Dietze. - Isotope analysis on nano-mole gas samples / S. Hałas. - Neue Möglichkeiten zur Freisetzung von Messgasen für die massenspektrometrische Isotopenanalysis aus Feststoffen / G. Müller, D. Hessel, H. Zahn, K. Mühle. - Die Kontrolle der Standardmeßbedingungen bei C-14-Datierungen / J. Görsdorf. - Raspredelenie izotopa 14C v različnych uglerodsoderžaščich materialach i frakcijach paleopočv v svjazi s geologičeskimi uslovijami zachoronečnija / L. A. Orlova, V. A. Panyčev, I. V. Nikolaeva. - Some variations in the isotopic composition of uranogenic and thorogenic lead and their significance for investigations of geochronology and genesis of ore and rocks / B. G. Amov. - Neue Daten für die Beiisotopenverhältnisse in Feldspäten aus dem Kristallinkomplex, den Graniten und Erzen Südbulgariens / B. Amow, V. Arnaudow, Z. Baldjiewa, M. Pawlowa. - 40Ar/39Ar-Altersspektren eines Biotits / G. Kaiser, J. Pilot. - Kalium-Calcium-Isochronen für Sylvinite des sibirischen Tafellandes / W. S. Lepin, T. W. Jegorowa, S. B. Brandt. - Beitrag zur Klärung der Genese west- und mittelerzgebirigischer Granite anhand von SR-87/SR-86-Verhältnissen / H. Gerstenberger, G. Haase. - Zur geochronologisch-genetischen Modellierung von Granitoiden im Westerzgebirge und Vogtland / Th. Kaemmel. - Zur Abschätzung von Altersunterschieden innerhalb des Erzgebirgsplutons auf grund von Isotopenaltern / Th. Kaemmel. - Theoretische Aspekte zur radiogeochronologischen Datierung von Gesteinen und Mineralen / G. Christoph. - Die Verteilung der Strontium-90 und Cäsium-137 im Wasserkörper der Ostsee 1975-1982 / D. Weiß, E. Ettenhub
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  • 86
    Monograph available for loan
    Monograph available for loan
    Sosnowiec : Uniwersytet Śląski, Instytut Geografii
    Call number: AWI P9-83-1079
    Type of Medium: Monograph available for loan
    Pages: 248 Seiten , Illustrationen, Karten
    Language: Polish
    Note: Contents: A snow cover in the region of Fiord Hornsund on Spitsbergen / J. Pereyma. - Temperature rations in summer on the Waldemar Glacier and on the Waldemar sea lowland / G. Wójcik, K. Marciniak, R. Przybylak. - Precipitation and evaporation in Werenskiold Glacier district / A. Szczepankiewicz-Szmyrka. - Biometeorological conditions on the Werenskiold Glacier forefield in summer of 1980 / A. Szczepankiewicz-Szmyrka. - Some notes on wind directions in the West Spitsbergen in 1980 / K. Gerstmann. - Radar measurements of the thickness of the Werenskiold Glacier / R. Czajkowski - The analysis of movements of the Werenskiold Glacier based on dating of fossil moss / H. Chmal - Increase in the mass of the firn snow in the glacial amphiteatre of the Penck Glacier in the period 1934 to 1958 / C. Lipert - Some automatic systems to collect and transmission stored data using various radio-links / J. Molski. - Würm and Holocene glaciations of North-Western Sörkappland exemplified by the Slakli Valley, Spitsbergen / P. Kłysz, L. Lindner. - The marine origin of Lisbetdalen mezorelief SW Spitsbergen / W. Stankowski - Raised marine terraces of Kulmstranda North-Western Sörkappland / P. Kłysz, L. Lindner - The geomorphological sketch map of the Gåsdalen region, South Spitsbergen / J. Jania, Z. Lentowicz, T. Szczypek, J. Wach. - Last deglaciation of Treskelen Peninsula, Hornsund, Svalbard / L. Marks. - The recession of Vitkovski Glacier as recorded in its marginal zone / L. Andrzejewski, w. Stankowski. - Degradation processes on the end moraine of the Werenskiold Glacier / J. Cegła, J. Kida. - Studies of the dessication crack on the forefield of the Werenskiold Glacier / J. Cegła. - The beginning and evolution of the marginal outwash on the forefield of the Eliza Glacier / A. Olazewski. K. Sendobry. - Summer thawing of the ground in the Kaffiöyra, SW Spitsbergen / K. Marciniak, W. Szczepanik, R. Przybylak - Morphology and sedimentary environments of the Baszkara ·and Dzankuat Glaciers in the High Kaukas / A. Karczewski, A. Kostrzewski,P. W. Kowalew. - Stratigraphic position and remarks on sedimentation of the Brentskardhaugen Bed, Spitsbergen / A. Wierzbowski, G. Biernat, C. Kulicki. - Some remarks concerning the structure of groups of the bottom fauna of the Admiralty Bay - King George Island, South Shetland / P. Presler, K. Jażdżewski·, W. Jurasz, W. Kittel, J. Siciński. - Biological indexes of the hydrological conditions - observations from Hornsund region, Spitsbergen / J. M. Węsławski. - The habitability of the littoraly rocks in region Steinvika and Hyttevika Bays, Vestspitsbergen / O. Różycki, M. Gruszczynski. - Some aspects of the acoustical estimation of the krill abundance / M. Brzozowska. - Liberation of carbon dioxide from tundra soils / H. Dziadowiec. - Exploration in the Hornsundfiord region / J. Szupryczyński. - , In polnischer Sprache
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  • 87
    Call number: ZSP-SCAR-570-3
    In: National Antarctic Research Report to SCAR, No. 3
    Type of Medium: Series available for loan
    Pages: 16 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 3
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 80-October 81. - II. Planned Activities, October 81-October 82. - References.
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  • 88
    Monograph available for loan
    Monograph available for loan
    [Erscheinungsort nicht ermittelbar] : [Verlag nicht ermittelbar]
    Call number: AWI P2-19-92186
    Type of Medium: Monograph available for loan
    Pages: 23 Seiten
    Language: English
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  • 89
    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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  • 90
    Call number: ZSP-980-69
    In: 2nd Working Meeting "Radioisotope Application and Radiation Processing in Industry", Part 1, 1 to 48
    In: ZfI-Mitteilungen, Nr. 69
    Type of Medium: Series available for loan
    Pages: 480 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 69
    Language: English
    Note: Contents of Part 1 S. Niese: Reactor neutron activation analysis of industrial materials R.P. Gardner, K. Verghese: Use of Monte Carlo methods in the calibration and design optimization of radiation gauges and analyzers R. Otto, P. Hecht: On labelling with generator nuclides M. Richter: Measurement of residence time distribution with radiotracers using periodic pseudo-random binary signal sequences J. Schoen: A computer code for tracer experiment data analysis H.-H. Deicke, J. Flachowsky, K.-P. Rudolph, N. Beiermann: Transit time measurements in technical plants by using a multichannel analyzer H. Bohne: Measurements of air currents L. Baranyai: Tracer study of simultaneous homogenization and segregation in industrial equipments N. Balabanov, N. Kapitanova: Application of radiotracer method for study of glass furnaces J. Thẏn: Evaluation of mixing particulate solids by radiotracer method H.-G. Koennecke, P. Kulicke, E. Antal, J. Jentzsch, H. Michael: Investigation of the mixing efficiency of kneading machines using radionuclides A.G. Belov, V.E. Zhuchko, Yu.S. Zamyatnin, Yu.G. Teterev, D. Rubio: Development of the nuclear-physical methods of analysis at the laboratory of nuclear reactions of the JINR R. Burek, K. Wojcik: A new concept for measuring of free moisture in solid materials N. Bachvarov, I. Georgiev, E. Manolov, P. Pavlov, H. Shukov, K. Tropolov: Process control system for fresh concrete preparation H. Baumbach: Investigation of moisture migration in the concrete of a special test construction under simulated load conditions A. Petrov, A. Sreno, H. Hristov, P. Penev, G. Georgiev: Beta-ray backscatter instruments for coating thickness measurements in electronic and electrotechnical industry W. Stuchlik, H. Kupsch: Radioactive level indicator for bulk materials in containers with calculation of the residual volume H. Baumbach, K. Fichtler, R. Melzer, D. Tietze, H. Ullrich: The determination of density variation in radiation protective walls of concrete by means of Bremsstrahlung of 1o MeV from linear accelerator D. Avramov: Modernized versions of mobile NDT laboratories V. Friedrich: Examples for radioisotope application in environment protection St. Szpilowski: Prediction of mixing length for transport of effluent in rivers A. Owczarczyk: The localization of the leakages through the dams and bottoms of large water reservoires W. Listwan: Progress in leak detection methods for underground pipelines and tanks J. Starẏ, A. Zeman, B. Havlik: Radionuclides in the investigation of the cumulation of toxic elements on alga and fish W. Richter, D. Kahl, H.-J. Grosse, F. Gleisberg: The use of an AIG-analyzer for the investigation of SO2-dispersion problems R. Goeldner, H.-J. Grosse, F. Gleisberg: Possibilities of the development of improved smoke detectors J. Adler, H.-R. Doering, H.-J. Grosse, F. Gleisberg: The use of the AIG in microelectronics P. Popp, R. Fahnert, S. Mothes, G. Oppermann: Methods for the determination of toxic compounds at work places H.-R. Doering. H.-J. Grosse: The detection of halocarbons by means of the aerosol ionization gas analyzer (AIG) E, Jaworska, I. Kaluska, G. Strzelczak: Crosslinking and free radical decay reactions in irradiated polyethylene in presence of additives J. Zahalka: Radiation modified materials in machine engineering W. Bobeth, R. Hanke, A. Heger, J. Morgenstern, H. Paessler: Technological aspects of planar structurizing on woven and knitted fabrics by localized radiation induced grafting B. Ihme, E. Maeder, A. Mally: Problems in the development of high-energy radiation processing of woven and knitted fabrics S. Nikolov. P, Panayotov, V. Diakova, M. Nikolova: Radiation modification of timber in people's republic of Bulgaria H. Dahlhelm. G. Matejko. G. Huebner: Experiments on sprouting inhibition in onions J. Thẏn: Process analysis with nuclear technique A. Merz: Axial dispersion and homogenization in chemical engineering systems A. Zeuner, F. Hartmann: Investigation of material transport in rotating dryers by aid of Lanthanum-140 D. Manr: Tracer research for modelling of Ion-exchange equipment
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  • 91
    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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  • 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-201-81/24
    In: CRREL Report, 81-24
    Description / Table of Contents: This report develops a method of analysis for heat transmission systems operating under district heating load conditions. The method accounts for the effects of heat source and load characteristics. The use of thermal energy storage systems is outlined and advantages are given. The transmission model itself considers the following technical aspects: (1) frictional pressure losses in piping system, (2) pump characteristics, (3) pump driver characteristics, and (4) heat losses from the buried piping. The capital costs considered are the piping system and necessary pumps. Operation and maintenance costs include cost of heat loss and cost of pumping energy input. Allowances are also made for system maintenance and repair over the assumed lifetime.
    Type of Medium: Series available for loan
    Pages: vii, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 81-24
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Modes of heat transmission History and state of the art Technical aspects of heat transmission systems Heat sources Space heating loads Thermal energy storage Fluid dynamics considerations Pump drivers Buried piping systems Economic aspects of heat transmission systems Capital costs Operation and maintenance costs Problem formulation Criteria for the optimum solution The objective function Problem solution The response surface Methods of solution Sample results, conclusions and suggestions for future work Results from model calculations Conclusions and suggestions for future work Literature cited Appendix A: Computer program listing
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  • 93
    Monograph available for loan
    Monograph available for loan
    Novosibirsk : Izdatel'stvo "Nauka", Sibirskoe otdelenie
    Call number: AWI G3-22-94892
    Description / Table of Contents: Приводятся новые материалы о составе, льдистости и криогенном строении аллювиальных и склоновых отложений, о диагенетическом минералообразовании в условиях вечной мерзлоты. Делается опыт прогнова изменений минимальных температур сезоннопротаивающего слоя на основе ыявленных 14- и 70-летних циклов колебаний температур вовдуха; рассматриваются особенности прибрежно-шельфовой криолитозоны. В двух статьях содержатся результаты теплобалансовых наблюдений в Центральной Лкутии, особое внимание уделяется рассмотрению теплового потока через дневную поверхность водоема, теплообмена водных масс с донными отложениями. Интересны данные о мощности и температуре многолетнемерзлых толщ, геотермическом градиенте, теплопроводности и тепловом потоке в породах равличных районов Сибири, об особенностях поведения температурного и электрического поля ПС вблизи нижней границы мерзлоты. Сборник представляет интерес для широкого круга специалистов: мерзлотоведов, теплофизиков, географов, строителей.
    Description / Table of Contents: Translation of the abstract: New materials are presented on the composition, ice content and cryogenic structure of alluvial and slope deposits, on diagenetic mineral formation in permafrost conditions. An experiment is made to test the changes in the minimum temperatures of the seasonally thawing layer on the basis of the identified 14- and 70-year cycles of air temperature fluctuations; the features of the coastal-shelf cryolithozone are considered. Two articles contain the results of heat-balance observations in Central Lukutia, special attention is paid to the consideration of the heat flow through the daytime surface of the reservoir, the heat exchange of water masses with bottom sediments. Of interest are the data on the thickness and temperature of permafrost, the geothermal gradient, thermal conductivity, and heat flow in the rocks of various regions of Siberia, and on the behavior of the temperature and electric field of the SL near the lower permafrost boundary. The collection is of interest to a wide range of specialists: permafrost scientists, thermal physicists, geographers, builders.
    Type of Medium: Monograph available for loan
    Pages: 89 Seiten , Illustrationen
    Language: Russian
    Note: СОДЕРЖАНИЕ Криолитологические особенности отложений малых рек в Центральной Якутии / Е.Г. Катасонова, Х.Г. Зигерт Минералообразование в области вечной мерзлоты / Х.Г. Зигерт Криогенное строение склоновых отложений на севере Среднесибирского плоскогорья / В.В. Куницкий Перелетки и основные типы сезонвомерзлых пород / Е.А. Втюрина Особенности прибрежно-шельфовой криолитозоны / А.И. Фартышев Многолетние экстремумы отрицательной температуры грунтов сезоннопротаивающего слоя в Центральной Якутии / П.А. Соловъев, Л.П. Голубых Интенсивность сезонного промерзания почвогрунтов в Заилийском Алатау / Э.В. Северский, М. В. Попов Теплопроводность крупнообломочных грунтов в горах Северного Тянь-Шаня / А. А. Мандаров Тепловой баланс крупного озера и прилегающей территории в Центральной Якутии / А.В. Павлов, М.И. Тишин Геотермические параметры Уренгойского месторождения / А.И. Левченко Теплофизические свойства многолетнемерзлых пород Мастахского месторождения газа / Н.Р. Колушев, В.Т. Балобаев, Р.И. Гаврилъев О некоторых особенностях поведения температурного и электрического поля ПС вблиаи нижней границы мерзлоты в терригенных толщах / В.О. Володько Геотермия вмещающих пород карьера "Мир" (Западная Якутия) / В.Н. Девяткин, Р.И. Гаврилъев Геотермические условия бассейна рек Курунг-Юрях и Хатат (Западная Якутия) / В.Н. Девяткин Тепловой баланс орошаемых посевов кормовых культур в Центральной Якутии / П.Н. Скрябин, О.И. Алексеева Расчет промерзания намывно й насыпи и ее основания / Н.И. Вотякова , In kyrillischer Schrift
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  • 94
    Monograph available for loan
    Monograph available for loan
    Leningrad : Gidrometeoizdat
    Call number: AWI A10-17-90636
    Description / Table of Contents: The book "Radiation in cloudy atmosphere" is devoted to description of the radiative peculiarities of the cloudy atmosphere which depends on the large-scale and microphysical properties of clouds. The data of micro- and macrophysical and optical characteristics of clouds are widely presented. The various methods for calculations of shortwave and longwave radiative fluxes in cloudy and clear atmosphere are described. There are shown some regularities of variations of albedo, absorbability and heat fluxes of clouds and cloudy atmosphere in dependence on their properties. The empirical radiation models of atmosphere in dependence on their properties. The empirical radiation models of atmosphere are presented. The results of measurements and calculations are compared. The book may be of interest for specialists in atmospheric physics, oceanology and some adjacent sciences. It has a reference character and so may be useful to scientists who take interest in radiation and cloudiness structure of the atmosphere. It may be used also by students, post-graduate students and lectureres of corresponding specialities.
    Type of Medium: Monograph available for loan
    Pages: 279 S.
    Language: Russian
    Note: In kyrill. Schr. , Zsfassung in engl. Sprache
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  • 95
    Monograph available for loan
    Monograph available for loan
    Bonn : Federal Republic of Germany, Press and Public Relations Department
    Call number: AWI P6-18-91970
    Type of Medium: Monograph available for loan
    Pages: iv, 169 Seiten
    Language: English
    Note: CONTENTS: Introduction. - International co-operation. - Intergovernmental co-operation. - Non-governmental co-operation. - I. Scientific Programme. - 1. Astronomy. - 2. Biological Sciences. - 2.1 The marine ecosystem and its living resources. - 2.1.1 Food resources, phytoplankton production and zooplankton. - 2.1.2 The role of the benthos. - 2.1.3 The role of micro-organisms. - 2.1.4 Distribution and incidence of seals in the pack-ice of the Weddell Sea. - 2.1.5 Distribution and life history of fishes. - 2.1.6 Large-scaie distribution and drift of krill. - 2.1.7 Composition and behaviour of krill shoals. - 2.1.8 Preservation and processing of krill. - 2.2 The adaptation of antarctic marine organisms to their environment. - 2.2.1 Experiments and marine studies on .the ecophysiology of krill. - 2.2.2 Temperature regulation and food requirements of warm-blooded antarctic animals. - 2.2.3 Growth, digestive system and food economy of antarctic fishes. - 2.2.4 Freezing resistance of sea animals. - 2.2.5 Taxonomy of antarctic marine organisms. - 2.3 Terrestrial biology in Antarctica. - 2.3.1 Temperature adjustments in the reproductive biology of antarctic birds. - 2.3.2 Biochemical bases of growth processes in poikilothermic organisms at very low temperatures. - 2.3.3 Nutritional biology of poikilothermic herbivora. - 2.3.4 Study of lichens, fungi and bacteria in Antarctica and on offshore islands. - 2.3.5 Photosynthesis and heterotrophic life cycle of plants at very low temperatures. - 2.4 Environmental protection in Antarctica. - 2.5 Human biology and medicine in polar regions. - 3. Geodesy, Cartography and Remote Sensing. - 3.1 Satellite geodesy. - 3.2 Doppler satellite positioning. - 3.3 Geodetic mapping of ice-free areas. - 3.4 Remote-sensing by satellite. - 4. Geology and Geophysics. - 4.1 Study of drift processes as a contribution to the geological history of Antarctica. - 4.1.1 Study of magnetic structures by means of aeromagnetic photography. - 4.1.2 Paleomagnetic studies of drift evolution. - 4.1.3 Micro-earthquakes as indicators of tectonic activity. - 4.1.4 Earth tides and natural oscillations of the earth. - 4.2 Studies of the structure of crust and mantle. - 4.2.1 Structure of the basement complex of the transantarctic mountain chain in the area east of the Filchner Ice Shelf. - 4.2.2 Structure of the basement of the Weddell Sea, the Filchner/Ronne Ice Shelf, and the peripheral area. - 4.2.3 Oldest and highly metamorphous rocks of the East Antarctic. - 4.3 Stratigraphy, tectonics and magmatism in the mobile areas. - 4.3.1 Mobile fringe areas of the East Antarctic. - 4.3.2 Paleozoic and mesozoic mountains(Beacon upper group) in the transantarctic mountains. - 4.3.3 Early paleozoic to cainozoic orogenes in the area around the Filchner/Ronne Ice Shelf. - 4.4 Study of exogenous processes under extremely cold conditions. - 4.4.1 Glacial geology and geomorphology. - 4.4.2 Weathering and detrital formation. - 4.5 Geoscientific marine research. - 5. Glaciology. - 5.1 Volume and dynamics of the Filchner/Ronne Ice Shelf. - 5.2 Determining the extent and thickness of the ice and its temporal variation in the Filchner/Ronne Ice Shelf sector and peripheral areas. - 5.3 Determining the composition and inner structure of the Filchner/Ronne Ice Shelf on the basis of geophysical surface measurements. - 5.4 Studies of the dynamics of the pack-ice in the Weddell Gyre. - 5.5 Physical characteristics of ocean ice. - 5.6 Glaciological drillings. - 5.7 Chemical composition and accumulation genesis of antarctic background aerosol; global transport of trace gases and aerosols. - 5.8 Study of the elastic and rheological characteristics of ice, its heat conductability and texture affected by deformation. - 6. Upper Atmosphere and Extraterrestrial Physics. - 6.1 Investigation of whistlers and VLF radio emissions (chorus, hiss, etc) at conjugated points. - 6.2 Study of terresterial magnetic pulsations at conjugated points. - 6.3 Study of atmospherics to obtain more precise data on worldwide thunderstorms. - 6.4 Measurements of the aero-electric field. - 6.5 Balloon-based study of the ionosphere in the light of Mg t resonance lines. - 6.6 Measurement of the vertical distribution of ozone, steam and aerosol up to an altitude of 30 km. - 6.7 Measurements of emission in the infrared 9.6 µ ozone band from the ground. - 6.8 Other projects which may be carried out simultaneously with the above or later. - 6.9 Proposed basic terrestrial magnetic equipment for the Antarctic Station. - 6.10 Meteorite search expedition. - 6.11 Study of micrometeorites and cosmic dust. - 7. Meteorology and Oceanography. - 7.1 Meteorology. - 7.1.1 Atmospheric boundary stratum. - 7.1.2 Study of stratospheric circulation. - 7.1.3 Measurement of trace gases over long periods. - 7.1.4 Other research projects. - 7.1.5 Weather service observations and consultations. - 7.1.6 Basic meteorological equipment for the Antarctic Station. - 7.2 Physical oceanography. - 7.2.1 Formation and extent of bottom water in the Atlantic sector of the circumantarctic ocean. - 7.2.2 Numeric simulation of the vertical flows of material, energy and impulses. - 7 2.3 Time scales of transportation in deep water with the aid of radioactive trace elements. - 7.2.4 Detection of heavy metals in the Antarctic Ocean. - 7.2.5 Fishery oceanography in circumantarctic waters. - 7.2.6 Other research projects. - 8. Engineering Sciences. - 8.1 Shipbuilding technology. - 8.1.1 Measuring and testing programme regarding the performance of vessels in ice and technical developments in the construction of ice-going vessels. - 8.2 Iceberg location and navigation. - 8.2.1 Iceberg location. - 8.2.2 Development of precision positioning systems (also for dynamic positioning) to ensure noninterference with signals transmitted through ice and water masses of different thicknesses. - 8.3 Construction techniques. - 8.4 Exploration techniques. - 8.5 Other topics. - The Antarctic Research Station. - The Polar Research and Supply Ship. - The Polar Research Institute. - Institutions contributing to the Programme.
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  • 96
    Call number: AWI G6-18-91903
    Type of Medium: Series available for loan
    Pages: 93 Seiten , Illustrationen
    Series Statement: Schriftenreihe Anwendung von Isotopen und Kernstrahlungen in Wissenschaft und Technik 5
    Language: German
    Note: Inhaltsverzeichnis: 1. Einleitung. - 2. Grundlagen der 15N-Tracertechnik. - 3. Versuchsplanung und -auswertung. - 3.1. Begriffe und Symbole. - 3.2. Formeln und Definitionen für die Berechnung der in der 15N-Tracertechnik benötigten Größen. - 3.2.1. Relative 15N-Häufigkeit. - 3.2.2. Molmasse. - 3.2.3. Stickstoffgehalt. - 3.2.4. N-Masse. - 3.2.5. Stoffmenge. - 3.2.6. N-Menge. - 3.2.7. 15N- bzw. 14N-Menge. - 3.2.8. 15N-Masse. - 3.2.9. 15N-Exzeßmasse. - 3.2.10. Titrimetrische Neutralisationsanalysen. - 3.2.11. Spektren-Auswertung der 15N-Messung. - 3.3. Untersuchung statischer Eigenschaften biologischer Systeme (statische Isotopenverdünnungsanalyse). - 3.4. Untersuchung des dynamischen Verhaltens biologischer Systeme. - 3.4.1. Modellierung von Tracerprozessen. - 3.4.2. Theoretische Grundlagen der mathematischen Modellierung. - 3.4.3. Modell des Stickstoff-Stoffwechsels im Ackerboden. - 3.5. Berechnungsbeispiele zu den Abschnitten 3.2. bis 3.4. - 3.5.1. Isotopenstöchiometrie. - 3.5.2. Titrimetrische Analyse einer 15N-markierten Substanz. - 3.5.3. Isotopenverdünnungsanalyse. - 3.5.4. Tracerkinetik. - 3.6. Literatur. - 4. Methodik der Probenaufbereitung und Isotopenanalytik. - 4.1. Aufarbeitung des Probenmaterials. - 4.2. Chemische Aufbereitung. - 4.3. Probenchemie. - 4.3.1. Dumas-Methode. - 4.3.2. Hypobromit-Methode. - 4.3.3. Sonstige Methoden. - 4.4. Isotopenanalytik. - 4.4.1. Emissionsspektrometrische 15N-Analytik. - 4.4.1.1. Isotopenanalytik mit dem 15N-Analysator NOI-5. - 4.4.1.2. Isotopenanalytik mit dem automatischen 15N-Analysator ISONITROMAT 5200. - 4.4.2. Massenspektrometrische 15N-Isotopenanalyse. - 4.4.3. Methodenvergleich. - 4.5. Fehlerquellen in der 15N-Analytik. - 4.6. Weitere Analysenmethoden in der 15N-Tracertechnik. - 4.6.1. NMR-Spektroskopie. - 4.6.2. Kombinierte Gaschromatographie-Massenspektroskopie und Hochdruck-Flüssigkeitschromatographie-Massenspektroskopie. - 4.7. Literatur. - 5. 15N-Anwendung in der Biochemie. - 5.1. Die biologische Stickstoff-Fixierung. - 5.2. Pflanzenphysiologie. - 5.3. Tierphysiologie. - 5.4. Literatur. - 6. 15N-Anwendung in der landwirtschaftlichen Forschung. - 6.1. Allgemeines. - 6.2. Die Anwendung 15N-markierter Düngemittel zum Studium des N-Umsatzes im Boden. - 6.2.1. Stickstoff-Festlegung. - 6.2.1.1. Ammoniumfixierung und Sorption an organischen Bodenbestandteilen. - 6.2.1.2. Stickstoff-Festlegung in organischen N-Verbindungen. - 6.2.2. Verfügbarkeit und Mobilisierung von Stickstoff. - 6.2.3. Stickstoff-Transformation und Dynamik des Stickstoff-Umsatzes. - 6.2.3.1. Mineralisierung und Immobilisierung. - 6.2.3 .2. Humifizierung. - 6.2.3.3. Nitritzersetzung im Boden. - 6.2.4. Ausnutzung des Düngemittel-Stickstoffs und Stickstoff-Verluste (N-Bilanz). - 6.2.5. Migration von Düngemittel-Stickstoff im Boden. - 6.2.6. Nachwirkungseffekt. - 6.2.7. Forstwirtschaftliche Untersuchungen mit 15N. - 6.3. Die Anwendung 15N-markierter Düngemittel zum Studium des Stickstoff-Umsatzes in der Pflanze. - 6.3.1. Die Aufnahme des Stickstoffs und ihre Beeinflussung durch N-Form, Applikationsart, Pflanzenart, Ernährungszustand, Spurenelementversorgung, Temperatur und Zusammensetzung des Nährsubstrates (Stickstoff-Fixierung). - 6.3.2. Die Ausnutzung des Düngemittel-Stickstoffs durch die Pflanze. - 6.3.3. Verteilung des Dünge-Stickstoffs in der Pflanze. - 6.3.4. Stoffwechsel des gedüngten Stickstoffs. - 6.4. Die Untersuchung des Stickstoff-Umsatzes im Tier mittels 15N. - 6.4.1. Eiweißstoffwechsel. - 6.4.1.1. Proteinverdaulichkeit, Stickstoff-Verweilzeitstudien und Aminosäure-Resorptionskinetik. - 6.4.1.2. Biosynthese von Eiproteinen. - 6.4.1.3. Metabolismus von NPN-Verbindungen bei Wiederkäuern. - 6.5. Literatur. - 7. 15N-Anwendung in der medizinischen Forschung. - 7.1. Besonderheiten der Anwendung stabiler Isotope in der Humanmedizin. - 7.2. Biochemie des Intermediärstoffwechsels. - 7.2.1. Anatomische Lokalisation von Stoffwechselprozessen. - 7.2.2. Aufklärung von Stoffwechselwegen durch Erfassung der Stoffwechselzwischen- oder Endprodukte. - 7.2.3. Bestimmung der mittleren Verweilzeit bzw. Lebensdauer von Verbindungen. - 7.2.4. Bestimmung der Größe von Stoffwechsel-Pools. - 7.3. Gastroenterologie. - 7.4. Pädiatrie. - 7.5. Ernährung. - 7.6. Beiträge zur Diagnostik und Ursachenforschung von Krankheiten und zu pharmakologischen Fragestellungen. - 7.7. Literatur.
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  • 97
    Call number: ZSP-799-370
    In: Trudy Ordena Lenina Arktičeskogo i Antarktičeskogo Naučno-Issledovatelʹskogo Instituta, Tom 370
    Type of Medium: Series available for loan
    Pages: 163 Seiten , Illustrationen
    Series Statement: Trudy Ordena Lenina Arktičeskogo i Antarktičeskogo Naučno-Issledovatelʹskogo Instituta 370
    Language: Russian
    Note: In kyrillischer Schrift
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  • 98
    Monograph available for loan
    Monograph available for loan
    Leningrad : Gidrometeoizdat
    Call number: AWI A4-19-92407
    Type of Medium: Monograph available for loan
    Pages: 127 Seiten , Illustrationen
    Language: Russian
    Note: In kyrillischer Schrift
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  • 99
    Call number: AWI A3-20-93434-2
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 2
    Type of Medium: Series available for loan
    Pages: 218 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,2
    Language: German
    Note: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
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  • 100
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/18
    In: CRREL Report, 83-18
    Description / Table of Contents: An evaluation of an impulse radar system for detecting cavities under concrete pavement is discussed, and field results are presented. It was found that a dual antenna mode of surveying was ideal for void detection. In this mode one antenna operated in a transceive mode and a second, offset from the first, operated in a receive-only mode. This arrangement allowed a refraction-type profile survey to be performed, which enabled subpavement voids to be easily detected. Field trails were held at Plattsburgh Air Force Base, where 28 cavities were detected and mapped. Drilling of holes verified that a cavity existed and allowed cavity depth to be measured. The cavities varied from 1.5 in. to 23 in, depth and were up to 20 ft. long.
    Type of Medium: Series available for loan
    Pages: 49 Seiten , Illustrationen
    Series Statement: CRREL Report 83-18
    Language: English
    Note: CONTENTS Abstract Preface Introduction Plattsburgh Air Force Base Radar sounding system Survey procedure Cavity inspection Radar cavity detection test Radar profile results Falling-weight deflectometer tests Discussion and conclusions Literature cited
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