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  • 1
    Series available for loan
    Series available for loan
    Associated volumes
    Call number: ZSP-691-1984
    In: Research in Svalbard
    Type of Medium: Series available for loan
    Pages: 180 S.
    Language: English
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  • 2
    Monograph available for loan
    Monograph available for loan
    Copenhagen : Nyt Nordisk Forl.
    Associated volumes
    Call number: ZSP-553-9
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 36 S. : Ill.
    ISBN: 8717029635
    ISSN: 0106-1054
    Series Statement: Meddelelser om Grønland : Bioscience 9
    Language: English
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  • 3
    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
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  • 4
    Monograph available for loan
    Monograph available for loan
    Utrecht
    Call number: AWI P6-09-0023
    Type of Medium: Monograph available for loan
    Pages: XIII, 106 S.
    ISBN: 9039304238
    Language: English
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  • 5
    Call number: ZSP-387-6
    In: International project on paleolimnology and late cenozoic climate
    Type of Medium: Series available for loan
    Pages: 171 S. : Ill., graph. Darst.
    Language: English
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  • 6
    Call number: ZSP-387-7
    In: International project on paleolimnology and late cenozoic climate
    Type of Medium: Series available for loan
    Pages: 179 S. : Ill., graph. Darst.
    Language: English
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  • 7
    Call number: ZSP-387-8
    In: International project on paleolimnology and late cenozoic climate
    Type of Medium: Series available for loan
    Pages: 128 S.
    Language: English
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  • 8
    Call number: AWI G2-15-0023
    In: Coastal and estuarine studies, 40
    Type of Medium: Monograph available for loan
    Pages: XV, 647 S. : Ill., zahlr. graph. Darst., Kt.
    ISBN: 0875902545
    Series Statement: Coastal and estuarine studies 40
    Language: English
    Note: Contents: Acknowledgement. - Contributors List. - PART I. INTRODUCTION. - Introduction / D. Prandle. - PART II. BAROCLINIC DYNAMICS. - The influence of coastally trapped waves on the circulation in Jervis Bay, New South Wales / P. D. Craig and P. E. Holloway. - Tidal mixing near the sill of a Scottish sea loch / A. J. Elliott, P. A. Gillibrand and W. R. Turrell. - A topographically induced internal wave and mixing in the Tamar Estuary / D. R. Sturley and K. R. Dyer. - Turbulence and shear induced mixing processes in estuaries / E. J. Derbyshire & J. R. West. - Dynamically-active models in the prediction of estuarine stratification / J. H. Simpson and J. Sharples. - PART III. CIRCULATION. - Circulation Residual flow in Naples Bay and its effect on constituent concentration, constituent flux and residence time / J. Van de Kreeke. - The stratified hydrodynamics of the Palmiet - a prototypical bar-built estuary / J. L. Largier, J. H. Slinger and S. Talijaard. - Salinity structure of a shallow, tributary estuary / W. W. Schroeder, S. P. Dinnel and W. J. Wiseman Jr. - On meteorologically induced subtidal motion in Hangzhou Bay / J. L. Su and W. Chen. - Water level fluctuations in the Atchafalaya Delta, Louisiana: tidal forcing versus river forcing / E. M. Swenson and C. E. Sasser. - Modelling of low-frequency salinity variations in the St. Lawrence Estuary / K. T. Tee. - On the estuatine circulation within the Kattegat / N. Winkel-Steinberg, J. O. Backhaus and T. Pohlmann. - PART IV. SEDIMENTATION. - Sedimentation Observations of fine-sediment concentrations and transport in the turbidity maximum region of an estuary / R. J. Uncles, J. A. Stephens and M. L. Barton. - Velocity asymmetries in frictionally-dominated tidal embayments: longitudinal and lateral variability / C. T. Friedrichs, D. R. Lynch and D. G. Aubrey. - Effects of sea-level rise on muddy coastal margins / R. Kirby. - Acoustic measurements of suspended sediment over sandwaves / P. D. Thome, R. L. Soulsby and P. J. Hardcastle. - Some observations on fluid mud response to water waves / F. Jiang and A. J. Mehta. - The reflection of waves off beaches / J. Darbyshire. - PART V. MODELLING (SEDIMENT). - Dispersion in tidally-averaged transport equation / R. T. Cheng and V. Casulli. - Effect of bends on dilution rates / R. Smith. - Modelling the vertical distribution of suspended sediment in combined wave-current flow / A. G. Davies. - Some considerations on mathematical modelling of morphological processes in tidal regions / Z. B. Wang. - A three-dimensional transport model for dissolved and suspended matter in estuaries and coastal seas / G. C. van Dam and R. A. Louwersheimer. - An estuatine and coastal sand transport model / B. A. O'Connor and J. Nicholson. - PART VI. APPLIED STUDIES. - Current and density structure in the Netherlands coastal zone / W. P. M. de Ruijter, A. van der Giessen and F. C. Groenendijk. - On the distribution of suspended matter and the density driven circulation in the Dutch coastal area / M. Visser. - Coastal dynamics along a rugged coastline / B. King and E. Wolanski. - Transport of hypoxic waters: an estuary-subestuary exchange / A. Y. Kuo and K. Park. - Interdisciplinary study on the tidal front in the Bungo Channel, Japan / T. Yanagi, O. Matsuda, S. Tanabe and S. Uye. - Hydrodynamic modelling for a tidal power project / T. L. Shaw.
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  • 9
    Call number: AWI P5-15-0006
    Type of Medium: Monograph available for loan
    Pages: XIII, 495 Seiten
    Edition: printed original edition 1967
    ISBN: 0-8047-0272-1
    Language: English
    Note: Contents: 1 Introduction. - 2 Geology of the Floor of Bering and Chukchi Seas - American Studies. - 3 Late Quaternary Sediments of Bering Sea and the Gulf of Alaska. - 4 Quaternary Marine Transgressions in Alaska. - 5 Quaternary Geology of the Alaskan Shore of Chukchi Sea. - 6 Quaternary Geology of Western Seward Peninsula, Alaska. - 7 Paleogeography of Chukotka During Late Neogene and Quaternary Time. - 8 Radiocarbon Chronology in Siberia. - 9 Neogene and Early Quaternary Vegetation of Northwestern North America and Northeastern Asia. - 10 Quaternary Vegetational History of Arctic Alaska. - 11 Vegetation of Eastern Siberia During the Anthropogene Period. - 12 Distribution, Ecology, and Cytology of the Ogotoruk Creek Flora and the History of Beringia. - 13 Mammal Remains of Pre-Wisconsin Age in Alaska. - 14 On the Origin of the Mammalian Fauna of Canada. - 15 The Effect of the Bering Land Bridge on the Quaternary Mammalian Faunas of Siberia and North America. - 16 Palearctic-Nearctic Mammalian Dispersal in the Late Cenozoic. - 17 The Stratigraphy of Tjbrnes, Northern Iceland, and the History of the Bering Land Bridge. - 18 Cenozoic Migrations of Marine Invertebrates Through the Bering Strait Region. - 19 Marine Mammals and the History of Bering Strai. - 20 Depth Changes in Bering Sea During the Upper Quaternary, as Indicated by Benthonic Foraminifera. - 21 Diatom Floras and the History of Okhotskand Bering Seas. - 22 On Migrations of Hunters across the Bering Land Bridge in the Upper Pleistocene. - 23 Human Migration and Permanent Occupation in the Bering Sea Area. - 24 The Cenozoic History of Beringia - A Synthesis. - General Index. - Index to Faunal and Floral Taxa.
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  • 10
    Series available for loan
    Series available for loan
    Vienna : International Atomic Energy Agency
    Associated volumes
    Call number: AWI G2-15-0024
    In: Reports and studies
    Type of Medium: Series available for loan
    Pages: 191 S.
    Series Statement: Reports and studies / Joint Group of Experts on the Scientific Aspects of Marine Pollution 43
    Language: English
    Note: CONTENTS: EXECUTIVE SUMMARY. - 1. INTRODUCTION. - 1.1. Background. - 1.2. Definition of the coastal zone. - 1.3. Modelling for marine pollution studies. - 2. MODELLING FRAMEWORK. - 2.1. lntroduction. - 2.2. Questions to be answered. - 2.3. Other model dependencies on the nature of the questions. - 2.3.1. Near-field models. - 2.3.2. Far-field models. - 2.4. Conceptual model of contaminant dispersion. - 2.4.1. Description of water column processes. - 2.4.2. Description of the sea bed processes. - 2.4.3. Sources and sinks. - 2.5. Selection of components of the conceptual model. - 3. MODEL CONSTRUCTION. - 3.1. Modelling approach. - 3.1.1. Deterministic modelling approach. - 3.1.2. Stochastic modelling. - 3.2. Hydrodynamic model. - 23.2.1. From simple to complex models . - 3.2.2. Model complexity and predictability. - 3.2.3. Dealing with the problern of open boundaries. - 3.3. Sub-models. - 3.3.1. Sediment transport model. - 3.3.2. Biological transport model. - 3.3.3. Benthic transport model. - 4. MODEL FORMULATION AND PARAMETERIZATION OF PROCESSES. - 4.1. lntroduction. - 4.1.1. Philosophy. - 4.1.2. Levels of parameterization. - 4.2. Parameterization in transport models. - 4.2.1. Hydrodynamical model. - 4.2.2. Pollutant transport model: advection-diffusion equation. - 4.2.3. Sediment transport models. - 4.2.4. Biological transport models. - 4.3. Contaminant transport model: couplings between transport models. - 4.3.1. Biota-water interactions. - 4.3.2. Biota-particle interactions. - 4.3.3. Particle-water interactions. - 4.4. Decay and production. - 4.5. Parameterization in transport models for the sea bed. - 4.6. Characterizing source terms. - 5. CASE STUDIES. - 5 .1. Introduction. - 5.2. Cadmium in an estuary. - 5.2.1. Statement of the management problem. - 5.2.2. Model construction. - 5.2.3. Example calculations. - 5.2.4. Additional comments. - 5.3. Monazite sand dregded from an estuary. - 5.3.1. Statement of the management problern. - 5.3.2. Model construction. - 5.3.3. Specific examples. - 5.4. Impact of the disposal of titanium dioxide wastes into coastal waters. - 5.4.1. Statement of the management problem. - 5.4.2. Model construction. - 5.4.3. Example calculations. - 5.4.4. Additional comments. - 5.5. Nutrient inputs to Osaka Bay. - 5.5.1. Statement of the management problem. - 5.5.2. Model construction. - 5.5.3. Example calculations. - 5.5.4. Additional comments. - 5.6. Sewage discharge near a beach. - 5.6.1. Statement of the management question. - 5.6.2. Model construction. - 5.6.3. Example calculations. - 5.6.4. Additional comments. - 5.7. Model for the Dutch North Sea water quality management plan. - 5. 7 .1. Statement of the management problem. - 5.7.2. Model construction. - 5.7.3. Example calculations. - 5.7.4. Additional comments. - 5.8. Radioactive discharges from a nuclear reprocessing plant. - 5.8.1. Statement of the management problem. - 5.8.2. Model construction. - 5.8.3. Additional comments. - 5.9. Overall observations. - 6. QUALITY ASSURANCE PROCEDURES. - 6.1. Introduction. - 6.2. Verification. - 6.3. Sensitivity analysis. - 6.4. Validation. - 7. SUMMARY AND CONCLUSIONS. - REFERENCES. - ANNEX I. COASTAL REGIMES. - A1.1. Estuaries. - A1.1.1 Stratified estuaries. - A1.1.2. Partially-mixed and well-mixed estuaries. - A1.1.3. Fjords. - A1.1.4. Hybrid estuaries. - A1.1.5. Transverse characteristics of estuaries. - A1.2. Inshore embayments. - A1.3. Open continental shelf. - A1.3.1. Example of a wide shelf. - A1.3.2. Example of a narrow shelf. - A1.4. Marginal seas. - A1.4.1. Example of a marginal sea with a sill: the Baltic Sea. - A1.4.2. Example of a marginal semi-constrained sea: the North Sea. - A1.5. The Arctic shelves. - References to Annex 1. - ANNEX 2. DETAILS ON PARAMETERIZATION OF PROCESSES. - A2.1. Introduction. - A2.2. Hydrodynamic transport models: momentum transfer. - A2.3. Sediment transport models. - A2.3.1. Bed-load transport. - A2.3.2. Suspended sediment transport. - A2.3.3. Grain size distributions. - A2.3.4. Gravitational settling. - A2.3.5. Critical bed shear stress. - A2.4. Biological transport models. - A2.5. Benthic transport models. - A2. 6. Coupling between transport models. - A2.6.1. Biota-water interactions. - A2.6.2. Sediment-water interactions. - A2.7. Diagenesis: water-sediment interactions. - A2.8. Parameterization of the source term. - A2.8.1. Nature of source. - A2.8.2. Bulk sources. - A2.8.3. Disposal procedure. - A2.8.4. Specific chemical compounds. - References to Annex 2. - LIST OF WORKING GROUP MEMBERS, SECRETARIAT AND MEETINGS. - GESAMP REPORTS AND STUDIES.
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  • 11
    Monograph available for loan
    Monograph available for loan
    Cambridge : Cambridge Univ. Pr.
    Call number: M 93.0687 ; AWI A5-92-0492 ; PIK N 456-93-0164
    Type of Medium: Monograph available for loan
    Pages: xiii, 201 S.
    Edition: 1st publ.
    ISBN: 0521381789
    Classification:
    Meteorology and Climatology
    Language: English
    Location: Upper compact magazine
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  • 12
    Monograph available for loan
    Monograph available for loan
    New York u.. : John Wiley
    Call number: M 92.0333 ; AWI G3-92-0458
    Type of Medium: Monograph available for loan
    Pages: XVIII, 313 S. : Ill.
    ISBN: 0471508616
    Classification:
    Petrology, Petrography
    Language: English
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  • 13
    Call number: AWI G2-98-0365 ; M 93.0402
    In: Contributions to sedimentology
    Type of Medium: Monograph available for loan
    Pages: IV, 210 S. : Ill., graph. Darst.
    ISBN: 3510570138
    ISSN: 0343-4125
    Series Statement: Contributions to sedimentology 13
    Classification:
    Petrology, Petrography
    Language: English
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  • 14
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: M 93.0568 ; PIK N 411-92-0553 ; AWI G3-92-0388
    Type of Medium: Monograph available for loan
    Pages: XIV, 281 S. : graph. Darst.
    ISBN: 3540534199
    Classification:
    Historical Geology
    Language: English
    Location: Upper compact magazine
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  • 15
    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.
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  • 16
    Monograph available for loan
    Monograph available for loan
    Hamburg : Max-Planck-Institut für Meteorologie
    Associated volumes
    Call number: ZSP-686-125
    In: Report
    Type of Medium: Monograph available for loan
    Pages: 23 S. : Ill.
    ISSN: 0937-1060
    Series Statement: Report / Max-Planck-Institut für Meteorologie 125
    Language: English
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  • 17
    Call number: PIK N 076-93-0119 ; MOP 47760 / Mitte ; AWI A2-23-4557
    Type of Medium: Monograph available for loan
    Pages: 578 Seiten , Illustrationen
    Edition: First published 1991
    ISBN: 0521426308 , 0-521-42630-8 , 0521416310 , 0-521-41631-0
    Language: English
    Note: Contents Foreword xi OPENING ADDRESSES Professor G.O.P. Obasi, Secretary General, World Meteorological Organization Dr M.K. Tolba, Executive Director, United Nations Environment Programme Dr F. Mayor, Director General, United Nations Educational, Scientific and Cultural Organization Professor M.G.K. Menon, President, International Council of Scientific Unions Dr H. de Haen, Assistant Director General, Food and Agriculture Organization SCIENTIFIC AND TECHNICAL SESSIONS HIGHLIGHTS OF THE IPCC ASSESSMENT The Intergovernmental Panel on Climate Change (IPCC) / B. Bolin Scientific Assessment of Climate Change: Summary of the IPCC Working Group I Report / J.T. Houghton Greenhouse Gases and Other Climate Forcing Agents / U. Siegenthaler and E. Sanhueza Climate Change Prediction / J. F. B. Mitchell and Zeng Qingcun Climate Trends and Variability / M. Coughian and B.S. Nyenzi Climate Change Impact Studies: The IPCC Working Group II Report / Yu. Izrael Impacts on Hydrology and Water Resources / H.E. Lins, I.A. Shiklomanov and E.Z. Stakhiv Impact of Climate Change on Agriculture, A Critical Assessment / S.K. Sinha Potential Impacts of Climate Change on Human Settlements, the Energy, Transport and Industrial Sectors; Human Health and Air Quality / M. Hashimoto and S. Nishioka The Response Strategies Working Group of the IPCC / F. Bernthal The Greenhouse Marathon: Proposal for a Global Strategy / P. Vellinga and R.J. Swart Adaptation Measures / K.M. Sarma Limitation Strategies / K. Yokobori Report of the IPCC Special Committee on the Participation of Developing Countries / J. Ripert OVERVIEW OF THE WORLD CLIMATE PROGRAMME The World Climate Programme: Achievements and Challenges / J.P, Bruce Modern Data and Applications: World Climate Data Programme, World Climate Applications Programme / V.G. Boldirev Overview of the World Climate Research Programme / P. Morel World Climate Impact Studies Programme / J.C.I. Dooge CLIMATE RESEARCH Global Climate, Energy and Water Cycle / G.A. McBean Remote Sensing and Global Climate Change: Water Cycle and Energy Budget / H. Grassl World Ocean Circulation and Climate Change: Research Programmes and a Global Observing System / D.J. Baker Short Term Climate Variability and Predictions / J. Shukia Paleodata, Paleoclimates and the Greenhouse Effect / H. Oeschger Climate Prediction Based on Past and Current Analogues / M.I. Budyko Detection of the Enhanced Greenhouse Effect on Climate / T.M.L. Wigley and S.C.B. Raper CLIMATE CHANGE AND SOCIO-ECONOMIC ACTIVITIES Water Climate, Water and Development / J. Sircoulon Drought Issues for the 1990s / M.H. Glantz and W. Degefu Agriculture and Food Agriculture and Food Systems / M.S. Swaminathan The Potential Effect of Climate Changes on Agriculture / M. Parry and Zhang Jiachen Oceans, Fisheries and Coastal Zones Effects of Global Climatic Change on Marine Ecosystems and Fisheries / T. Kawasaki Sea Level Rise and Coastal Zone Management / E.M. Eid and C.H. Huisbergen Energy Beginning to Reduce Greenhouse Gas Emissions need not be Expensive: Examples from the Energy Sector / E. Mills, D. Wilson and TB. Johansson Land Use and Urban Planning Climate and Land Use in North Africa / M. Kassas Climate and Urban Planning / R. Taesler Human Dimensions Human Well-being, Diseases and Climate / W.H. Weihe and R. Mertens Population and Global Climate Change / D. Norse Public Information and Attitudes / R. Lamb Environment and Development Climate, Environment and Ecology / W.H. Schlesinger Climate, Tropical Ecosystems and the Survivability of Species / P. Olindo Some Possible Impacts of Climate Change on African Ecosystems / C.H.D. Magadza Forests Forests: Their Role in Global Change, with Special Reference to the Brazilian Amazon / E. Salati, R.L. Victoria, L.A. Martinelli and J. E. Richey Integrated Studies Climate Change and Risk Management / K. Turner, T. ORiordan and R. Kemp Climate, Climate Change, and the Economy / N.S. Jodha and W.J. Maunder Assessing the Regional Implications of Climate Variability and Change / W.E. Riebsame and A. Magalhaes SPECIAL PRESENTATION Climate Change and the United Nations Conference on Environment and Development / M.F. Strong TASK GROUPS AND CONSULTATION GROUP REPORTS Task Group I Climate, Hydrology and Water Resources Task Group 2 Agriculture and Food Task Group 3 Oceans, Fisheries and Coastal Zones Task Group 4 Energy Task Group 5 Land Use and Urban Planning Task Group 6 Human Dimensions of Climate Change Task Group 7 Environment and Development Task Group 8 Forests Task Group 9 WCP Overview Task Group 10 The World Climate Programme: Overview and Future Task Group 11 Scientific Components of International Agreements Task Group 12 Synthesis Consultation Group on the Special Needs of Developing Countries SUMMARIES OF PANEL DISCUSSIONS Global Climate Analogues and Global Climate Models Climate and Environmentally Sustainable Economic Development Industry's Response Co-operation in International Research Programmes CONFERENCE STATEMENT MINISTERIAL SESSIONS OPENING CEREMONY Introduction by Prof. G.O.P. Obasi, Secretary General, WMO H.E. Mr. Arnold Koller, President of the Swiss Confederation His Majesty King Hussein Bin Talal, of the Royal Hashemite Kingdom of Jordan The Rt. Hon. Margaret Thatcher, Prime Minister of the United Kingdom of Great Britain and Northern Ireland H.E. Mr. Michel Rocard, Prime Minister of France The Rt. Hon. Edward Fenech-Adami, Prime Minister of Malta The Rt. Hon. Bikenibeu Paeniu, Prime Minister of Tuvalu Statement by Dr. E. Saouma, Director General, FAO CLOSING CEREMONY Statement by Dr. F. Mayor, Director General, UNESCO MINISTERIAL DECLARATION Appendix 1 SWCC Inter-Agency Committees Appendix 2 Poster Session Papers Appendix 3 Statement by Environmental Non-Governmental Organizations Appendix 4 Participants at the Scientific/Technical Sessions Appendix 5 Countries and Organizations Represented at the Ministerial Sessions Appendix 6 Participating Non-Governmental Organizations Appendix 7 Acronyms Appendix 8 Units
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  • 18
    Call number: AWI P2-88-0760-3
    In: Antarctica and international law, Volume 3
    Type of Medium: Monograph available for loan
    Pages: XI, 551 Seiten
    ISBN: 0379203325
    Language: English
    Note: Arrangement of Volume III: Part VIII Germany. - Part IX Federal Republic of Germany. - Part X Japan. - Part XI New Zealand. - Part XII Norway. - Part XIII Peru. - Part XIV Poland. - Part XV South Africa. - Part XVI Union of Soviet Socialist Republics. - Part XVII United Kingdom of Great Britain and Northern Ireland. - Part XVIII United States of America. - Part XIX Uruguay.
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  • 19
    Monograph available for loan
    Monograph available for loan
    Moskva : Izd. "Russkij jazyk"
    Call number: AWI S5-06-0625
    Type of Medium: Monograph available for loan
    Pages: 575 S.
    ISBN: 5200018439
    Language: Russian , English
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  • 20
    Call number: ZSP-553-8
    In: Meddelelser om Grønland
    Type of Medium: Series available for loan
    Pages: 392 S. : Ill., graph. Darst., Kt.
    ISBN: 8717029697
    Series Statement: Meddelelser om Grønland : Geoscience 8
    Language: English
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  • 21
    Call number: ZSP-686-143
    In: Report
    Type of Medium: Monograph available for loan
    Pages: 42 S. : Ill.
    ISSN: 0937-1060
    Series Statement: Report / Max-Planck-Institut für Meteorologie 143
    Language: English
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  • 22
    Call number: ZSP-686-93
    In: Report
    Type of Medium: Monograph available for loan
    Pages: 171 S. : überw. Ill., graph. Darst.
    ISSN: 0937-1060
    Series Statement: Report / Max-Planck-Institut für Meteorologie 93
    Language: English
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  • 23
    Call number: AWI G3-17-90374
    Type of Medium: Monograph available for loan
    Pages: 197 S , zahl. Ill.
    Language: English
    Note: TABLE OF CONTENTS: List of figures. - List of plates. - List of tables. - Acknowledgements. - Preface. - Itinerary for Canadian portion of tour. - GENERAL DESCRIPTION OF THE AREA. - Physiography and geology. - Quaternary geology. - Northern Yukon Territory and Mackenzie Delta. - Cordilleran Ice Sheet. - Montane glaciers of the southern Ogilvie Ranges. - Correlation and chronology. - Laurentide Glaciation. - Climate. - The Mackenzie Basin. - Northern Yukon. - Soils. - Distribution in the permafrost regions of Canada. - Distribution in Northwestern Canada. - Spil properties. - Patterned Ground Morphology. - Soil Texture and Rate of Decomposition. - Moisture and Ice Ccontent. - Soil Temperatures. - Micromorphology. - Cryoturbation. - Permafrost. - Distribution. - Thickness. - Active layer. - Ground ice. - Permafrost and climate change. - Vegetation. - Agriculture. - Overview. - Yukon. - Northwest Territories. - Forest resources. - Mining and exploration. - Overview. - Yukon. - Northwest Territories. - DESCRIPTION OF SOIL STOPS AND POINTS OF INTEREST. - Site 1, KM 4: Permafrost soil developed on organic terrain. - Organic soils in the Mackenzie Valley. - Mesic organic cryosol (Polygonal peat plateau). - Micromorphology. - Soil Temperature and Moisture. - Snow Depth, Active Layer Depth and Subsidence. - Site 2, KM 36: Permafrost soil developed on earth hummocks. - Orthic turbic cryosol, Peaty phase. - Micromorphology. - Soil Temperature and Moisture. - Snow Depth, Active Layer Thickness and Subsidence. - Site 3: Soil and permafrost development on recent alluvium. - Ecology of the Mackenzie Delta. - Mackenzie Delta ecosystems, Bonbardier Channel. - Site 4: Mackenzie River. - Site 5, KM 30: Richardson Mountains and glacial limit. - Site 6, KM 14: AUFEIS, or icing on James Creek. - Site 7, KM 5: Solifluction Site. - Site 8, KM 0: Continental divide, NWT/Yukon border. - Site 9, KM 425: Pediments and foothills, Richardson Transect. - Micromorphology. - Site 10, KM 403: Arctic circle. - Site 11, KM 400.5: Nonsorted circles (mudboils). - Origin of mudboils. - Orthic turbic cryosol associated with strongly cryoturbated materials. - Micromorphology. - Site 12, KM 366: Eagle plain monitoring site, Dempster Highway. - Soil Temperature and Moisture. - Micromorphology. - Site 13, KM 322: Forest fire site. - Site 14, KM 259: Peel River and Ogilvie Mountains Overview. - Site 15, KM 174: Sulphur Springs. - Site 16, KM 160-180: Tors on limestone ridges. - Site 17, KM 155: Calcareous soil on mid-pleistocene drift. - Brunisolic turbic cryosol. - Micromorphology. - Site 18, KM 115.5: Open-system Pingo. - Site 19, KM 96.5: Ice-wedge Polygons. - Site 20, KM 80: Frost mounds. - Site 21, KM 80: McConnell glacial limit. - Site 22, KM 77: Nonsorted circle site. - Micromorphology. - Site 23, KM 74: Tombstone Mountain Lookout. - Site 24: Midnight Dome Lookout. - Site 25: Agriculture on permafrost-affected soil. - Site 25a: The cleared soil. - Micromorphology. - Site 25b: The forested soil. - Micromorphology. - The impact of disturbance on soil physical properties. - Site 26: Placer gold mining in the Klondike District. - Site 27: Paleosols as indicators of past climate. - Wounded moose paleosol developed on Pre-Reid gravel. - Micromorphology. - Site 28: The effect of aspect on soil development. - Site 28a: Orthic dystric Brunisol (Southeast Aspect). - Micromorphology. - Site 28b: Regosolic Turbic cryosol (Northwest Aspect). - Site 29, KM 4: Sunnydale View. - Site 30, KM 53: Unglaciated Terrain - Tors and cryoplanation terraces. - Site 31, KM 102: Solifluction lobes and soil stripes. - Site 32, KM 107: Soils associated with sorted nets. - Orthic turbic cryosol. - References. - Appendices. - Appendix 1: The Canadian sysetm of soil classification. - Appendix 2: Methods. - Appendix 3: Glossary of micromorphological terms. - Appendix 4: Scientific and common names of plant species.
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  • 24
    Monograph available for loan
    Monograph available for loan
    Anchorage, Alaska : U.S. Dept. of the Interior, Minerals Management Service, Alaska Outer Continental Shelf Region
    Call number: AWI G3-13-0138
    Type of Medium: Monograph available for loan
    Pages: ix, 408 S. : Ill., Kt.
    Series Statement: OCS study : outer continental shelf / MMS, US Department of the Interior, Minerals Management Service 94-0040
    Language: English
    Note: CONTENTS: STRATIGRAPHY AND PALEOGEOGRAPHY. - The Devonian-Carboniferous Boundary in Russian Eurasia / Kirill V. Simakov. - Base Olenekian and Base Anisian Sequence Boundaries Produced by Triassic Circumpolar 'Synchronous' Transgressions / Atle Mørk, Alexander Y. Egorov, and Ashton F. Embry. - Mesozoic Stratigraphy of Franz Josef Land Archipelago, Arctic Russia - A Literature Review / Ashton F. Embry. - The Continental Triassic Biostratigraphy of the Timan-North Urals Region from Tetrapod Data / Igor V. Novikov. - Climatic Fluctuations and Other Events in the Mesozoic for the Siberian Arctic / Viktor A. Zakharov. - Lower Triassic Vertebrates from the North of Central Siberia / Michael A. Shishkin. - The Use of Parallel Bizonal Scales for Refined Correlation in the Jurassic of the Boreal Realm / Boris L. Nikitenko and Boris N. Shurygin. - Lower Toarcian Black Shales and Pliensbachian-Toarcian Crisis of the Biota of Siberian Paleoseas / Boris L. Nikitenko and Boris N. Shurygin. - Earliest Tertiary Cenozoic Paleogeography of the Arctic Ocean / Louie Marincovich, Jr. - Comparative Geology of Northern Chukotka and the Northern Canadian Cordillera / Yuri M. Bychkov and M. E. Gorodinsky. - Paleokarst in the Katakturuk Dolomite (Proterzoic), Northeastern Brooks Range, Alaska / James G. Clough and Mark S. Robinson. - Pre-Mississippian Rocks in the Clarence and Malcolm Rivers Area, Alaska, and the Yukon Territory / John S. Kelley, Chester T. Wrucke, and Larry S. Lane. - Correlation of Pre-Carboniferous Carbonate Successions of Northern Alaska / Julie A. Dumoulin and Anita G. Harris. - Depositional Record of a Major Tectonic Transition in Northern Alaska: Middle Devonian to Mississippian Rift-Basin Margin Deposits, Upper Kongakut River Region, Eastern Brooks Range, Alaska / Arlene V. Anderson, Wesley K Wallace, and Charles G. Mull. - Deep-Water Facies of the Lisburne Group, West-Central Brooks Range, Alaska / Julie A. Dumoulin, Anita G. Harris, and Jeanine M. Schmidt. - Conodont Biostratigraphy and Biofacies of the Wahoo Limestone (Carboniferous), Eastern Sadlerochit Mountains, Brooks Range, Alaska / Andrea P. Krumhardt, Anita G. Harris, and Keith F. Watts. - Maastrichtian/Danian(?) Ostracode Assemblages from Northern Alaska: Paleoenvironments and Paleobiogeographic Relations / Elisabeth M. Brouwers and Patrick De Deckker. - Geological and Geochemical Analysis of the Aurora Well, Offshore of the Arctic National Wildlife Refuge 1002 Area / Arthur C. Banet. - Correlation Study of Selected Exploration Wells from the North Slope and Beaufort Sea, Alaska / Susan M. Banet and James Scherr. - Correlation of the Pennsylvanian-Lower Cretaceous Succession Between Northwest Alaska and Southwest Sverdrup Basin: Implications for Hanna Trough Statigraphy / Ashton F. Embry, Michael B. Mickey, Hideyo Haga, and John H. Wall. - Stratigraphic and Seismic Analyses of Offshore Yakataga Formation Sections, Northeast Gulf of Alaska / Sarah D. Zellers and Martin B. Lagoe. - Statigraphy and Correlation of the Neoproterozoic Shaler Supergroup, Amundsen Basin, Northwestern Canada / Robert H. Rainbird. - Lower Paleozoic T-R Sequence Stratigraphy, Central Canadian Arctic / Tim A. de Freitas, Ulrich Mayr, and J. Christopher Harrison. - Silurian Foredeep and Accretionary Prism in Northern Ellesmere Island: Implications for the Nature of the Ellesmerian Orogeny / Marcia G. Bjørnerud and D. C. Bradley. - Uppermost Albian-Campanian Palynological Biostratigraphy of Axel Heiberg and Ellesmere Islands (Canadian Arctic) / L. Koldo Núñez-Betelu, R. A. MacRae, L. V. Hills, and G.K Muecke. - STRUCTURE AND TECTONICS. - Triangle Zone Model for the Salt-Based Foldbelt in Canada's Arctic Islands / J. Christopher Harrison. - Subsidence Analysis and Tectonic Modeling of the Sverdrup Basin / Randell A. Stephenson, J. Boerstoel, A. F. Embry, and B. D. Rickerts. - Development of a Glaciated Arctic Continental Margin: Exemplified by the Western Margin of Svalbard / Espen S. Andersen, Anders Solheim, and Anders Elverhøi. - Basin Inversion and Thin-Skinned Deformation Associated with the Tertiary Transpressional West Spitsbergen Orogen / Arild Andresen, Steffen C. Burgh, and Pål Haremo. - The Geology of Franz Josef Land Archipelago, Russian Federation / Vitaly D. Dibner. - Triassic Marginal Basins of Northern and Eastern Europe and Evidence for Global Sea-Level Fluctuations / Vladlen R. Lozovsky. - Rift-and-Graben Systems of the Eurasian-Arctic Continental Margin / Edward V. Shipilov and E. V. Senin. - Accretionary History of Northeast Asia / Leonid N. Parfenov. - Paleomagnetism and the Kolyma Structural Loop / David B. Stone, Stephen G. Crumley, and Leonid M. Parfenov. - Major Tectonic Interpretation and Constraints for the New Siberian Islands Region, Russian Arctic / Mikhael K. Kos'ko. - Geology of Wrangel Island Between Chukchi and East Siberian Seas, Northeastern Russia - Excerpts from Geological Survey of Canada Bulletin 461 / Mikhael K. Kos'ko, Michael P. Cecile, Victor G. Ganelin, Nikolai V. Khandoshkoy, and Boris G. Lopatin. - Precambrian Rocks in the Anadyr-Koryak Region / Oleg N. Ivanov. - Deep Structure of Mafic - Ultramafic Complexes in the Anadyr - Koryak Region / Yuri Ya. Vashchilov. - Accreted Mesozoic Oceanic Complexes of Koryak Superterrane, Northeastern Russia / Vladimir N. Grigoriev, Kirill A . Krylov, and Sergey D. Sokolov. - Reconnaissance Paleomagnetism of the Olyutorsky Superterrane, NE Russia / Alexander Heiphetz, William Harbert, and Leonid Savostin. - Preliminary Reconniassance Paleomagnetism of Some Late Mesozoic Ophiolites, Kuyul Region, Northern Kayak Superterrane, Russia / Alexander Heiphetz, William Harbert, and Paul Layer. - The Gankuvayam Section, Kuyul Ophiolitic Terrane, as a Type Ophiolitic Section on the Arctic Margin of the Russian Far East / Ivan V. Panchenko. - Tectono-Magmatic Environments Within Continent-to-Ocean Transition Zone of the Northwestern Pacific / Oleg N. Ivanov. - Stratigraphy, Structure, and Origin of the Franklinian, Northeast Chukchi Basin, Arctic Alaska Plate / Kirk W. Sherwood. - Early Tertiary Wrench Faulting in the North Chukchi Basin, Chukchi Sea, Alaska / Richard T. Lothamer. - Apatite Fission-Track Evidence of Episodic Early Cretaceous to Late Tertiary Cooling and Uplift Events, Central Brooks Range, Alaska / John M. Murphy, Paul B. O'Sullivan, and Andrew J. W. Gleadow. - The Cenozoic Structural Evolution of the Northeastern Brooks Range, Alaska / Catherine L. Hanks, Wesley K. Wallace, and Paul O'Sullivan. - Timing of Tertiary Episodes of Cooling in Response to Uplift and Erosion, Northeastern Brooks Range, Alaska / Paul B. O'Sullivan. - GEOPHYSICS OF THE ARCTIC OCEAN BASINS AND MARGINS. - A New Crustal Model of the Lincoln Sea Polar Margin / Malcolm Argyle, David A. Forsyth, Andrew V. Okulitch, and Del Huston. - A New Plate Kinematic Model of Canada Basin Evolution / Larry S. Lane. - The Age of the Amerasia Basin / Ashton F. Embry and James Dixon. - Implications for Canada Basin Development from the Crustal Structure of the Southern Beaufort Sea-MacKenzie Delta Area / Randell A. Stephenson, K. C. Coflin, L. S. Lane, and J. R. Dietrich. - A Preliminary Analysis of Potential Field Data in the Southern Chukchi Sea / Bruce M. Hennan and Susan A. Zerwick. - Seismicity of the Amerasian Arctic Shelf and its Relationship to Tectonic Features / Kazuya Fujita and Boris M. Koz'min. - Generalized Rheological Model of the Lithosphere and Plate Tectonics / Vladimir P. Pan and Y. P. Zmiyensky. - The Arctic Geodynamic System: Its Boundaries, Deep Geology and Structural Evolution / Igor S. Gramberg and Y. E. Pogrebitsky. - QUATERNARY AND MARINE GEOLOGY. - The Quaternary Deposits of the Barents Sea and Valdai Glaciation of the Eurasian Arctic Shelf / Lev R. Merklin, N. N. Dunaev, O. V. Levchenko, and Yu. A. Pavlidis. - Deep Ice Scour and Mass Wasting Features on the Northern Svalbard Insular Shelf and Slope / Norman Z. Cherkis, M. D. Max, A. Midthassel, K. Crane,
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  • 25
    Call number: ZSP-708-7
    In: SCAR report, No. 7
    Type of Medium: Series available for loan
    Pages: 54 Seiten , Illustrationen, graphische Darstellungen
    Series Statement: SCAR report 7
    Language: English
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  • 26
    Call number: ZSP-708-6
    In: SCAR report, No. 6
    Type of Medium: Series available for loan
    Pages: 21 Seiten
    Series Statement: SCAR report 6
    Language: English
    Note: Contents: XVth Antarctic Treaty Consultative Meeting, Paris, 19-20 October 1989. Recommendation XV-1. Comprehensive measures for the protection of the Antarctic environment and dependent and associated ecosystems. - Opening statement by the President of the Scientific Committee on Antarctic Research (SCAR) / R. M. Laws. - Presentation by the President of the Scientific Committee on Antarctic Research (SCAR) / R. M. Laws. - Report on the XIth Antarctic Treaty Special Consultative Meeting by the SCAR observer / W. N. Bonner. - Interim Report of the XIth Antarctic Treaty Special Consultative Meeting.
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  • 27
    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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  • 28
    Monograph available for loan
    Monograph available for loan
    London : H.M.S.O
    Call number: AWI G10-18-91809
    Type of Medium: Monograph available for loan
    Pages: 45 Seiten , Karte , 30 cm
    Edition: 2nd ed
    ISBN: 0115917179 (pbk.)
    Language: English
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  • 29
    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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    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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  • 31
    Monograph available for loan
    Monograph available for loan
    New Delhi : Amerind Publishing
    Call number: AWI G2-18-91897
    Description / Table of Contents: This publication is concerned with problems of the origin, evolution and paleogeography of the Arctic Ocean and its coast during the Tertiary and Quaternary periods. Much emphasis is placed on the evolution of modern Arctic flora and fauna, both terrestrial and aquatic. All these problems are discussed on the basis of hydrological, paleontological, biogeographical, climatological and archaeological data presented at the AII-Union symposium held in Leningrad during April 1-6, 1968. This is a unique encyclopedia on the Arctic. lt will be of interest to many research workers - geographers, geologists, biologists, hydrologists and all who deal with problems of the geological history and paleogeography of the Northern Hemisphere.
    Type of Medium: Monograph available for loan
    Pages: XIV, 564 Seiten , Illustrationen
    Uniform Title: Severnyi Ledovityi Okean i Ego Poberezh'e v Kainozoe
    Language: English
    Note: Contents: PREFACE. - SECTION I. HISTORY OF THE ARCTIC OCEAN IN THE CENOZOIC ERA. - Linear and Areal Morphostructures of the Arctic Ocean Floor / V. D. Dibner. - Fluctuations in Arctic Climate as Revealed by Floor Sediment Analysis / N. A. Belov, N. N. Lapina. - Stratification and Rate of Accumulation of Floor Sediments of the Soviet Arctic Seas / N. N. Kulikov, N. N. Lapina, Yu. P. Semenov, N. A. Belov, M. A. Spiridonov. - Palynologic Study of Kara Sea Floor Sediment Cores / N. N. Kulikov, R. M. Khitrova. - Geologic Structure of the Glacial Shelves of the Atlantic Province of the Arctic Basin / M. A. Spiridonov. - Stratigraphy and Paleogeography of Spitsbergen in the Pleistocene / Yu. A. Lavrushin. - Role of Glaciers in Franz Josef Land Relief Formation / V. L. Sukhodrovskii. - Reconstruction of the Late- and Post-Pleistocene Arctic Basin Ice Sheet / P. M. Borisov. - Changes in the Arctic Basin since the Last Glaciation Maximum / D. P. Chizhov. - SECTION II. ARCTIC FLORA AND FAUNA AND THE HISTORY OF THEIR FORMATION. - Some Problems of Study of the Early Cenophytic Arctic Flora / L. Yu. Budantsev. - Arctic Flora and Its Historical Link with the Arctic Ocean / A. I. Tolmachev, B. A. Yurtsev. - Wide Fluctuations in Ocean Level in the Quaternary period and Their Influence on the Arctic Ocean Basin and its biological community / G. U. Lindberg. - Fresh Data on the Food of the Siberian Woolly Rhinoceros / V. E. Garutt, E. P. Meteltseva, B. A. Tikhomirov. - Characteristics of the Arctic Ocean Fauna and their significance for understanding the History of its formation / E. F. Guryanova. - Formation of macroscopic marine algal flora of the Arctic Basin / A. D. Zinova, Yu. E. Petrov. - The Concept of the Arctic origin of Pinnipeds and other solutions of this problem / K. K. Chapskii. - Ecological Adaptations of Pinnipeds in the Atlantic Province of the Polar Basin / V. A. Potelov, Yu. K. Timoshenko. - A General Review of th PIeistocene Marine Faunas of the Northern Coast of Eurasia / S. L. Troitskii. - History of the Evolution of Marine Mollusk Fauna of the Late Cenozoic Atlantic Arctic / V. S. Zarkhidze. - Late Cenozoic History of Foraminifera of the Pechora Lowland and Northern West Siberia / O. F. Baranovskaya, V. Ya. Slobodin. - Species composition of Modern Foraminifera as an Indication of the Arctic Sea's hydrological regime / S. V. Tamanova. - SECTION Ill. PALEOGEOGRAPHY OF THE NORTHERN TERRITORIES IN THE LATE CENOZOIC ERA. - Paleogeography of Northern USSR and contiguous areas of the Arctic Basin / G. S. Ganeshin. - North Eurasia in the Late Cenozoic Era / Yu. P. Degtyarenko, V. V. Zhukov, N. G. Zagorskaya, O. A. Ivanov, V. I. Kaiyalainen, Yu. N. Kulakov, A. P. Puminov, V. Ya. Slobodin, O. V. Suzdalskii. - On the History of the Migration of the Arctic Basin Shoreline in the Cenozoic Era / S. A. Strelkov. - Causes of Fluctuations in the Arctic Basin Level in the Neogene-Quaternary Period / J. L. Kuzin. - Spore-Pollen Analysis of Late Cenozoic Marine Sediments in the Reconstruction of the Paleogeography of the Arctic Coasts / N. G. Zagorskaya, F. M. Levina. - Forest Line Migration in North Asia in the Upper Pleistocene and Holocene (Based on Spore-Pollen Analysis) / R. E. Giterman, L. V. Golubeva, E. V. Koreneva, L. A. Skiba. - Holocene Transgressions and Variations in the Northern Coastline of the Kola Peninsula / B. I. Koshechkin, A. L. Kudlaeva. - Interpretation of Radiocarbon Datings of the Absolute Age of Organic Residues from the Upper Anthropogene Deposits of Fennoscandia / V. G. Chuvardinskii. - Structure and Stratigraphic Division of White Sea Bottom Deposits / V. S. Medvedev, E. N. Nevesskii, L. I. Govberg, E. S. Malyasova, R. N. Dzhinoridze, E. A. Kirienko. - Principal Stages in the History of the Vegetation of the Dvina Bay Coast of the White Sea during the Late- and Postglacial Transgression / E. S. Pleshivtseva. - Quaternary Transgressions in the Northern Russian Plain and Their Relationship with Continental Glaciations / E. N. Bylinskii. - Anthropogene Deposit-Forming Environments on Kolguev Island / O. F. Baranovskaya, T. A. Matveeva. - Cenozoic History of the Northern Coast of Europe / V. S. Zarkhidze. - Stages of Formation of the Southern Part of the Arctic Basin in Timan-Pechora Province in the Late Cenozoic Era / O. F. Baranovskaya, P. N. Safronov, G. N. Berdovskaya. - Pliocene-Pleistocene History of the Pechora Basin / V. L. Yakhimovich. - Paleogeography and Origin of Cenozoic Rocks in Soviet Europe as Revealed by Hydrochemical Data / V. D. Bezrodnov. - Study of Paleogeography and Neotectonics of Some Regions of the European Northeast by Coal Petrography / Yu. V. Stepanov. - History of the Formation of Arctic Shelf Foraminifer Fauna (Based on Data on the Timan-Ural Region) / I. N. Semenov. - Evolution of Pleistocene Marine Diatom Flora in the Northeast of Soviet Europe / E. I. Loseva. - Quaternary Deposits of the Middle Pechora and Vychegda River Basins / A. S. Lavrov. - Late Pleistocene Terraces in the Northeast of Soviet Europe and the Environments in which They were Formed / L. M. Potapenko, A. S. Lavrov. - Key Sections of the Lower Pechora and Their Importance for an Understanding of the Last Stages of the Geological Evolution of Northeastern Soviet Europe / V. S. Zarkhidze, I. I. Krasnov, M. A. Spiridonov, Yu. A. Lavrushin, I. I. Ryumina. - Siberian Elements in the Flora of the Far Northeast of Europe and Their Origin / O. V. Rebristaya. - Some Geographical Relationships of Ural Floras and Their Importance for Paleogeography / K. N. lgoshina. - Ostracod Complexes from the Late Cenozoic Marine Deposits of Northern Soviet Europe and West Siberia and Their Importance for Paleogeography / O. M. Lev. - Paleogeography of the Northern West Siberian Lowland and Russian Plain in the Late Pleistocene and Holocene / M. G. Kipiani, A. D. Kolbutov. - Mammals and Landscapes of the Northern Urals in the Late Anthropogene / I. E. Kuzmina. - Pleistocene Transgressions in Northern West Siberia and the Pechora Lowland / I. D. Danilov. - Salient Paleogeographic Features of the Pechora Lowland and Lower Ob Basin in the Neogene Epoch / P. P. Generalov, I. L. Kuzin, I. L. Zaionts, R. B. Krapivner. - Some Problems of the Quaternary Geology of Northern Soviet Europe and West Siberia / A. G. Kostyaev. - Northern West Siberia in the Pliocene and Pleistocene / O. V. Suzdalskii. - Boreal Transgressions and the Origin of Subsurface Sheet Ice Deposits / B. I. Vtyurin. - Dependence of Certain Types of Subsurface Glaciation in West Siberia on the Peculiarities of the Polar Sea / A .I. Popov. - History of Subsurface Freezing in West Siberia in the Light of Transgression of the Arctic Basin / V. V. Baulin. - New Data on the History of the Evolution of the Pre-Kazantseva and Kazantseva Vegetation in the Muzhi Urals and Southern Yamal (Based on Palynological Data) / E. E. Gurtovaya. - New Data on the Distribution of Recent Marine Deposits in West Siberia / I. L. Zaionts, Z. I. Kholodova. - Pleistocene Diatom Floras of the Yenisei North / Z. V. Aleshinskaya. - Some Upper Cenozoic Stratotypes of the Ust-Yenisei Depression / V. Ya. Slobodin. - Transgressions of the Arctic Basin and Evolution of the Yenisei North in the Pleistocene (Absolute Chronology of Events by 14C Dating) / N. V. Kind, L. D. Sulerzhitskii. - Kargin Diatoms from the Key Section of the Lower Yenisei / N. A. Khalfina. - Spread of Late Cenozoic Transgressions of the Arctic Basin in the Northwestern Central Siberian Tableland / V. D. Kryukov, V. V. Rogozhin. - Paleogeography of Northeastern Taimyr in the Quaternary Period (Based on Geological and Palynological Data) / G. N. Berdovskaya, N. A. Gei, V. M. Makeev. - Emergence and Development of Pleistocene Landscapes in the Eastern North Siberian Lowland / V. V. Zhukov, N. A. Pervuninskaya, L. Ya. Pinchuk. - History of Relief Formation in the Eastern North Siberian Lowland and the Adjoi
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  • 33
    Call number: AWI G1-19-92116
    Type of Medium: Monograph available for loan
    Pages: 85 Blatt , Illustrationen
    Language: English , German , Spanish
    Note: Beiträge teilweise Deutsch, teilweise Englisch, teilweise Spanisch
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  • 34
    Monograph available for loan
    Monograph available for loan
    Copenhagen : [s.n.]
    Call number: AWI G7-19-91945
    Type of Medium: Monograph available for loan
    Pages: 98 Seiten , Illustrationen
    Language: English
    Note: CONTENTS: Report on the 1996 activities of NGRIP Operations. - Objective. - Kangerlussuaq (Søndre Strømfjord). - Preparation of field season. - Start of field season. - NGRIP Camp. - Casing construction. - Visitors. - 1995 Field Season, Diary. - Communication. - Accidents and illness. - Close down of camp. - Maintenance/Logistics. - Kangerlussuaq. - NGRIP. - Bulk Supplies. - Core production vs time. - NGRIP camp load. - Table of Twin Otter flights. - Table of C130 flights. - List of participants. - Load at NGRIP. - NGRIP 1996 sub programs. - CARDS radar sounding. - Gravity and GPS measurements. - Airborne radar-echo sounding by Polar 2. - Sitreps. - Daily reports from NGRIP. - Surface topography near NGRIP. - NGRIP camp layout. - Map of trenches. - Tower and roof opening. - Inclined drill pit. - Map of Greenland. - ERS1 based Topography of North Greenland. - Map of ice divide north of Summit. - Map of magnetic declination in Greenland. - List of NGRIP addresses.
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  • 35
    Call number: ZSP-SCAR-570-6
    In: Antarctic Research Report to SCAR, No. 6
    Type of Medium: Series available for loan
    Pages: 38 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 6
    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 83-October 84. - II. Planned Activities, October 84-October 85. - References.
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  • 36
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/23
    In: CRREL Report, 82-23
    Description / Table of Contents: A direct filtration, water treatment pilot plant was operated on the Kenai River at Soldotna, Alaska, during the summer of 1980. The purpose of the pilot plant operations was to determine the feasibility of the direct filtration process for removal of glacial silt. The major criterion used to determine feasibility was production of water containing less than 1.0 NTU of turbidity. For the range of raw water turbidities encountered (22-34 NTU), the pilot plant testing indicated that direct filtration was feasible and could be considered as an alternative to conventional waiter treatment plants containing sedimentation tanks.
    Type of Medium: Series available for loan
    Pages: 26 Seiten , Illustrationen
    Series Statement: CRREL Report 82-23
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric Introduction Glacial characteristics Water treatment Materials and methods Experimental design Pilot plant intake Hydrocyclone Chemical addition system Flocculation system Filtration system Pilot plant operations Coagulant chemical preparations Flow measurement Sampling Results and discussion Kenai River w ater quality Evaluation of pilot plant testing Performance of pilot plant elements Physical and chem ical variables Conclusions Recommendations Literature cited
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  • 37
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/2
    In: CRREL Report, 84-2
    Description / Table of Contents: Investigations of the in situ complex dielectric constant of sea ice were made using time-domain spectroscopy. It was found that (1) for sea ice with a preferred horizontal crystal c-axis alignment, the anisotropy of polarizing properties of the ice increased with depth, (2) brine inclusion conductivity increased with decreasing temperature down to about -8 C, at which point the conductivity decreased with decreasing temperature, (3) the DC conductivity of sea ice increased with increasing brine volume, (4) the real part of the complex dielectric constant is strongly dependent upon brine volume but less dependent upon the brine inclusion orientation, (5) the imaginary part of the complex dielectric constant was strongly dependent upon brine inclusion orientation but much less dependent upon brine volume. Because the electromagnetic (EM) properties of sea ice are dependent upon the physical state of the ice, which is continually changing, it appears that only trends in the relationships between the EM properties of natural sea ice and its brine volume and brine inclusion microstructure can be established.
    Type of Medium: Series available for loan
    Pages: vi, 38 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 84-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Dielectric properties of sea ice Time-domain spectroscopy measurement Laboratory measurements Field measurements Analysis of ladder data Conductivity of brine and sea ice Complex dielectric constant of brine and sea ice Discussion and conclusions Literature cited
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  • 38
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/3
    In: CRREL Report, 84-3
    Description / Table of Contents: The results of resistance tests in level ice and broken ice channels are presented for two models of the WTGB 140-fticebreaker at scales of 1:10 and 1:24, respectively. No scale effect on the resistance in level ice could be detected between the two models. From the test results an empirical predictor equation for the full scale ice resistance is derived. Predicted resistance is compared against, and found to be 25 to 40% larger than, available full-scale values estimated from thrust measurements during full-scale trials of the Great Lakes icebreaker Katmai Bay.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 84-3
    Language: English
    Note: COTENTS Abstract Preface Nomenclature Introduction Model characteristics and test conditions Ice-hull coefficient of friction Measurements of ice properties Experimental procedures Data acquisition system Test program and procedures for 1:10 model Test program and procedures for 1:24 model Analysis of test results Comparison of test results between 1:10 and 1:24 models Analysis of tests in broken or brash-filled ice channels Analysis of tests in level ice Full-scale prediction of level ice resistance Conclusions Literature cited
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  • 39
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/4
    In: CRREL Report, 84-4
    Description / Table of Contents: Ice problems developed in the Sault Ste. Marie, Michigan, portion of the St. Marys River because of winter navigation. Passing ships and natural influences moved ice from Soo Harbor into Little Rapids Cut in sufficient quantities to jam, cause high water in the harbor, and prevent further ship passage. After physical model and engineering studies, two ice booms with a total span of 1375 ft (419 m) with a 250-ft (76-m) navigation opening between were installed at the head of Little Rapids Cut in 1975. A modest field study program on the booms was conducted for the ensuring four winters to determine ice and boom interaction and the effects of ship passages on the system. Forces on some anchors were recorded and supplemental data were taken by local personnel. Several reports have been written about the booms' early operations. This paper presents four-year summary of the main effects of the booms on ice and ship interaction and vice versa. Throughout the four winter seasons, the small quantities of ice lost over and between the booms were manageable. Ships usually passed through the boom without influencing the boom force levels, but at time they brought about large changes. One boom needed strengthening, and artificial islands were added for upstream ice stability. Coast Guard icebreakers were also a necessary part of winter navigation in this area.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 84-4
    Language: English
    Note: CONTENTS Abstract Preface Introduction St. Marys River Ice problems Remedial measures Field studies Highlights, trends, and major findings Modifications to boom Maximum forces Ship traffic Characteristics Effect of boom forces Effect on ice Conclusion Literature cited Appendix A: Ice boom forces
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  • 40
    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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  • 41
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/2
    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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  • 42
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-82/40
    In: CRREL Report, 82-40
    Description / Table of Contents: The use of explosives to break floating ice sheets is described, and test data are used to develop design curves that predict explosives effects as ice thickness, charge size, and charge depth vary. Application of the curves to practical problems is illustrated by numerical examples. The general features of underwater explosions are reviewed and related to ice blasting. Quasi-static plate theory is considered, and is judged to be inapplicable to explosive cratering of ice plates. The specific energy for optimized ice blasting is found to compare quite favorably with the specific energy of icebreaking ships. All available field data for ice blasting are tabulated in appendices, together with details of the re­gression analyses from which the design curves are generated.
    Type of Medium: Series available for loan
    Pages: iv, 68 Seiten , Illustrationen
    Series Statement: CRREL Report 82-40
    Language: English
    Note: CONTENTS Abstract Preface Introduction General behavior of underwater explosions Regression analysis for ice-blasting data General features of the regression curves Use of the regression curves as design curves for ice blasting Row charges and pattern charges Response of floating ice sheets to underwater explosions Specific energy and “powder factor” Summary and conclusions Literature cited Appendix A: Basic data on ice blasting Appendix B: Scaled input data Appendix C: Initial regression analysis using complete polynomial Appendix D: Regression analysis with two coefficients of the original poly­nomial deleted
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  • 43
    Call number: ZSP-201-82/39
    In: CRREL Report, 82-39
    Description / Table of Contents: Observations of a 4.4-m-high brine step in the McMurdo Ice Shelf, Antarctica, show that it has migrated about 1.2 km in 4 years. The present brine wave is overriding an older brine-soaked layer. This migration is proof of the dynamic nature of the step, which is the leading edge of a brine wave that originated at the shelf edge after a major break-out of the McMurdo Ice Shelf. The inland boundary of brine penetration is characterized by a series of descending steps that are believed to represent terminal positions of separate intrusions of brine of similar origin. The inland boundary of brine percolation is probably controlled largely by the depth at which brine encounters the firn/ ice transition (43 m). However, this boundary is not fixed by permeability considerations alone, since measurable movement of brine is still occurring at the inland boundary. Freeze-fractionation of the seawater as it migrates throught the ice shelf preferentially precipitates virtually all sodium sulfate, and concomitant removal of water by freezing in the pore spaces of the infiltrated firm produces residual brines approximately six times more concentrated than the original seawater.
    Type of Medium: Series available for loan
    Pages: v, 35 Seiten , Illustrationen
    Series Statement: CRREL Report 82-39
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Analytical techniques Radio echo profiling Core drilling Results and discussion Brine infiltration survey Brine layer steps Brine infiltration characteristics Brine infiltration mechanisms at inland boundary Confirmation of brine depths by drilling Density and temperature profiles Ice shelf freeboard Brine upwelling Brine chemistry Conclusions Literature cited
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  • 44
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/38
    In: CRREL Report, 82-38
    Description / Table of Contents: Extreme cold causes heavy buildup of frost, ice and condensation on many windows. It also increases the incentive for improving the airtightness of windows against heat loss. Our study shows that tightening specifications for Alaskan windows to permit only 30% of the air leakage allowed by current American airtightness standards is economically attractive. We also recommend triple glazing in much of Alaska to avoid window icing in homes and barracks. We base our conclusions on a two-year field study of Alaskan military bases that included recording humidity and temperature data, observing moisture accumulation on windows and measuring airtightness with a fan pressurization device.
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    Pages: v, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 82-38
    Language: English
    Note: Contents Abstract Preface Nomenclature Introduction Previous work in cold weather window performance Investigation Data acquisition and analysis Modeling the window thermal regime Moisture and ice observations Airtightness testing and analysis Annual heat loss from air leakage Results and conclusions Moisture on windows Airtightness Airtightness economics Recommendations for windows in extreme cold Airtightness Multiple glazing Literature cited Appendix A: Moisture levels and airtightness Appendix B: Dewpoint data Appendix C: Sample observations of icing
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  • 45
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-82/36
    In: CRREL Report, 82-36
    Description / Table of Contents: Camp construction and drilling activities in 1950 at the East Oumalik drill site in northern Alaska caused extensive degradation of ice-rich, perennially frozen silt and irreversible modification of the upland terrain. In a study of the long-term degradational effects at this site, the near-surface geology was defined by drilling and coring 76 holes (maximum depth of 34 m) in disturbed and undisturbed areas and by laboratory analyses of these cores. Terrain disturbances, including bulldozed roads and excavations, camp structures and off-road vehicle trails, were found to have severely disrupted the site's thermal regime. This led to a thickening of the active layer, melting of the ground ice, thaw subsidence and thaw consolidation of the sediments. Slumps, sediment gravity flows and collapse of materials on slopes bounding thaw depressions expanded the degradation laterally, with thermal and hydraulic erosion removing materials as the depressions widened and deepened with time. Degradational processes became less active after thawed sediments thickened sufficiently to slow the increase in the depth of thaw and permit slope stabilization. The site's terrain is now irregular and hummocky with numerous depressions. Seasonal thaw depths are deeper in disturbed areas than in undisturbed areas and reflect the new moisture conditions and morphology. The severity of disturbance is much greater at East Oumalik than at another old drill site, Fish Creek. The difference results primarily from differences in the physical properties of the sediments, including the quantity and distribution of ground ice.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 82-36
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Methodology Geologic setting Camp construction and occupation Types of disturbance Degradational processes and the effective area of impact Areal effects of disturbance Topography Groundwater, surface water and drainage Sediment properties and near-surface stratigraphy Surficial processes Depth of thaw Comparison to Fish Creek Discussion and conclusions Literature cited
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  • 46
    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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  • 47
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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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  • 48
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    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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  • 49
    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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  • 50
    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.
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    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-22
    Language: English
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  • 51
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    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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  • 52
    Call number: ZSP-201-83/24
    In: CRREL Report, 83-24
    Description / Table of Contents: Secondary recovery of oil at Prudhoe Bay, Alaska, will involve transporting large quantities of seawater in elevated pipelines across tundra for injection into oil-bearing rock strata. The possibility of a pipeline rupture raises questions concerning the effects of seawater on tundra vegetation and soils. To evaluate the relative sensitivities of different plant communities to seawater, eight sites representing the range of vegetation types along the pipeline route were treated with single, saturating applications of seawater during the summer of 1980. Within a month of the treatment 30 of 37 taxa of shrubs and forbs in the experimental plots developed clear symptoms of stress, while none of the 14 graminoid taxa showed apparent adverse affects. Live vascular plant cover was thus reduced by 89 and 91% in the two dry sites and by 54, 74 and 83% in the three moist sites, respectively. Live(green) bryophyte cover was markedly reduced in the moist experimental sites in 1981. Bryophytes in all but one of the wet-site experimental plots were apparently unaffected by the seawater treatment. Two species of foliose lichens treated with seawater showed marked deterioration in 1981. All other lichen taxa were apparently unaffected by the seawater treatment. The absorption and retention of salts by the soil is inversely related to the soil moisture regime. In the wet sites, conductivities approached prespill levels within about 30 days. In such sites, spills at the experimental volumes are quickly diluted and the salts flushed from the soil. In the dry sites, on the other hand, salts are retained in the soil, apparently concentrating at or near the seasonal thaw line.
    Type of Medium: Series available for loan
    Pages: 43 Seiten , Illustrationen
    Series Statement: CRREL Report 83-24
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods Site selection and preparation Prespill assessment Seawater application Postspill assessment Enzyme assay and analysis of soil flora Results and discussion Soil-solution conductivities Vascular plant response Cryptogam response Site factors and plant response Soil flora and extracellular soil enzymes Limitations of this study Summary and conclusions Literature cited Appendix: Plant taxa included in this study
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  • 53
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/24
    In: CRREL Report, 84-24
    Description / Table of Contents: This report describes the growth characteristics and crystalline textures of urea ice sheets which are now used extensively in the Cold Regions Research and Engineering Lab. (CRREL) test basin for modeling sea ice. The aims of the report are to describe the different kinds of crystalline texture encountered in urea ice sheets and to show that even small variations in texture can drastically influence the mechanical behavior of urea ice sheets. Standard petrographic techniques for studying microstructure in thin sections were used on 24 urea ice sheets. These investigations entailed observations of the crystalline texture of the ice (including details of the subgrain structure), grain size measurements, and studies of the nature and extent of urea entrapment and drainage patterns in the ice. Increased knowledge of the factors controlling the crystalline characteristics of urea ice sheets has progressed to the point where test basin researchers at CRREL are now able to fabricate ice sheets with prescribed structures leading to predictable mechanical properties. Originators supplied keywords include: Sea ice, and Mechanical properties.
    Type of Medium: Series available for loan
    Pages: iv, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 84-24
    Language: English
    Note: Contents: Abstract Preface Introduction Objectives Analytical techniques Procedures for growing urea ice sheets Analysis of the crystalline structure of urea ice Characteristics of urea ice Results and discussion Ice sheet no. 1 Ice sheet no. 2 Ice sheet no. 3 Ice sheet no. 4 Ice sheet no. 5 Ice sheet no. 6 Ice sheet no. 7 Ice sheet no. 8 Ice sheet no. 9 Ice sheet no. 10 Ice sheet no. 11 Ice sheet no. 12 Ice sheet no. 13 Ice sheet no. 14 Ice sheet no. 15 Ice sheet no. 16 Ice sheet no. 17 Ice sheet no. 18 Ice sheet no. 19 Ice sheet no. 20 Ice sheet no. 21 Ice sheet no. 22 Ice sheet no. 23 Ice sheet no. 24 Urea concentrations in test tank solution and ice Discussion and conclusions E/σf ratio Thickness of incubation layer Crystal properties Literature cited Appendix A: Thin sections of urea ice sheets
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  • 54
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-84/17
    In: CRREL Report, 84-17
    Description / Table of Contents: VHF-band radiowave short pulses were transmitted within the permafrost tunnel at Fox, Alaska, over distances between 2.2 and 10.5 m. The propagation medium was a frozen silt containing both disseminated and massive ice with temperatures varying from -7°C near the transmitter to probably -2 C near the center of the tunnel overburden. The short pulses underwent practically no dispersion in the coldest zones but did disperse and refract through the warmer overburden, as suggested by calculations of the effective dielectric constant. Most significantly the measured frequency content decreased as the effective dielectric constant increased. The results indicate that deep, cross-borehole pulse transmissions over distances greater than 10 m might be possible, especially when the ground is no warmer than -4°C. The information thus pined could be used for identifying major subsurface variations, including ground ice features.
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    Pages: ii, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 84-17
    Language: English
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  • 55
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/13
    In: CRREL Report, 83-13
    Description / Table of Contents: A review on past experimental and theoretical work indicates a need for additional experimentation to characterize the response of snow to inelastic pressure waves. Pressure data from previously conducted explosion tests are analyzed to estimate the elastic limit of snow of 400 -kg/cu m density to be about 36 kPa. This pressure corresponds to a scaled distance of 1.6 m/cu.rt.kg for charges fired beneath the surface of the snow, and to a scaled distance of 1.2 m/cu.rt.kg for charges fired in the air. The effects of a snow cover on the method of clearing a minefield by using an explosive charge fired in the air above the snow surface are also discussed and recommendations are given for further work in this area. Explosive pressure data are used to estimate the maximum effective scaled radius for detonating buried mines at shallow depth to be 0.8 m/cu.rt.kg. Fuel-air explosive will increase this effective radius significantly because of the increase in the size of the source region.
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    Pages: 33 Seiten , Illustrationen
    Series Statement: CRREL Report 83-13
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Objectives Background Problems in describing the response of snow to an applied stress Methods of determining the dynamic behavior of materials Review of previous studies on snow Experimental measurements on snow Summary of snow experiments Theoretical studies Confirmation of the theory Discussion Applications Recommendations Summary Literature cited Appendix A. Selected data from Wisotski and Snyder (1966) Appendix B. Pressure data from Livingston (1964)
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  • 56
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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.
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    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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  • 57
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    Call number: ZSP-201-83/17
    In: CRREL Report, 83-17
    Description / Table of Contents: A sea ice model was applied to the East Greenland Sea to examine a 60-day ice advance period beginning 1 October 1979. This investigation compares model results using driving geostrophic wind fields derived from three sources. Winds calculated from sea-level pressures obtained from the National Weather Service's operational analysis system resulted in strong velocities concentrated in a narrow band adjacent to the Greenland coast, with moderate velocities elsewhere. The model showed excessive ice transport and thickness build-ups in the coastal region. The extreme pressure gradient parallel to the coast resulted partially from a pressure reduction procedure that was applied to the terrain-following sigma coordinate system to obtain sea-level pressures. Additional sea-level pressure fields were obtained from an independent optimal interpolation analysis that merged FGGE buoys drifting in the Arctic basin with high latitude land stations and from manual digitization of the NWS hand-analyzed Northern Hemisphere Surface Charts. Modeling results using winds from both of these fields agreed favorably.
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    Pages: 19 Seiten , Illustrationen
    Series Statement: CRREL Report 83-17
    Language: English
    Note: CONTENTS Abstract Preface Introduction Description of study Model results The problem Conclusions Literature cited
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  • 58
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    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.
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    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-26
    Language: English
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  • 59
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    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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  • 60
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-84/19
    In: CRREL Report, 84-19
    Description / Table of Contents: In this study a method for making long-range forecasts of freeze-up dates in rivers is developed. The method requires the initial water temperature at an upstream station, the long-range air temperature forecast, the predicted mean flow velocity in the river reach, and water temperature response parameters. The water temperature response parameters can be either estimated from the surface heat exchange coefficient and the average flow depth or determined empirically from recorded air and water temperature data. The method is applied to the St. Lawrence River between Kingston, Ontario, and Massena, New York, and is shown to be capable of accurately forecasting freeze-up. Originator-supplied keywords include: Ice formation, and River ice.
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    Pages: iii, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 84-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Problem formulation Analytical treatment Application to the upper St. Lawrence River Summary Literature cited Appendix A: Basic program for St. Lawrence River freeze-up forecast
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  • 61
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-84/32
    In: CRREL Report, 84-32
    Description / Table of Contents: Orwell Lake, in west-central Minnesota, is a flood-control, water-management reservoir first impounded in 1953. Subsequent erosion of the shoreline and a lack of knowledge of slope erosion processes in this region prompted this study to identify and quantify the processes there. The processes were measured at selected sites between June 1980 and June 1983. Erosion of the banks is primarily caused by three processes: rain, frost thaw, and waves. The first two processes tend to move sediment to the base of the steep slopes, forming 4 relatively gentle surface of accumulation. Wave action then tends to move this sediment into the lake. Analysis of the data collected over three years has confirmed that wave action is the dominant erosion process, providing almost 77% of the erosion during the 1981-82 study year. During the 1981 high pool level, 2,089 Mg of sediment, mostly colluvium, was removed from the lower slopes by wave action striking the 1.62 km of eroding shoreline. More than 4,300 Mg was eroded by waves accompanying the higher pool levels of 1982., During years in which the pool level does not exceed 325.5 m in elevation, the colluvium slope builds up at the expense of the steeper slope. But during successive years with higher pool levels, the resulting thin colluvium is quickly eroded. Erosion of the primary sediment, a compact till, then occurs, forming the S typical nearly vertical banks. In winter the upland surface adjacent to the lake freezes to a depth of between 1 and 2 m, depending on the surface temperature, the mow cover, and the distance from exposed banks. In late winter soil aggregates, released by the sublimation of interstitial ice within the banks, begin to accumulate at the base of the slopes, often veneering snowbanks there. Once thaw begins, slab failure of bank sediment is followed by mudflows and earthflows. Thaw failure at Orwell Lake in the winter of 1981-82 accounted for over 20% of the erosion; in the spring of 1982, 824 Mg was eroded by this process and 746 Mg the following spring. Such slope failure is most intense along north-facing banks and considerably less intense on south-facing banks, where more effective desiccation and sublimation reduce the soil moisture content. Summer rainfall is responsible for the remaining 3% of the total erosion, amounting to 102 Mg in 1981 and 208 Mg in 1982. Because the banks are steep and relatively short, rainwash is infrequent; rainsplash is the most consistent process during the summer, but the infrequent storms during which rainwash occurscause greater total erosion. Erosion by rain has increased in each of the past three summers, largely because of increased precipitation. Infrequent massive slope failures (slumps) have occurred at the east end of the lake where a buried clay rich unit is stratigraphically and topographically positioned to favor such failures. Drought years followed by heavy spring rains probably will result in additional slope failures of this type at the east end. Unless changes are made, the banks at Orwell Lake will continue to recede. Restriction of the pool level to less than 325.5-m elevation is the least expensive solution to the problem.
    Type of Medium: Series available for loan
    Pages: ix, 110 Seiten , Illustrationen
    Series Statement: CRREL Report 84-32
    Language: English
    Note: CONTENTS Abstract Preface Summary Chapter 1. Introduction Location Purpose of study Previous work Chapter 2. Methodology Geology Overland erosion Wave erosion Frost penetration and heave Thaw failure Bank recession Ground water Soil moisture Chapter 3. Results Geology Geotechnical properties Overland erosion Wave erosion Freeze-thaw phenomena Ground water fluctuations Other slope failures Chapter 4. Discussion Overland erosion Wave erosion Thaw failure Universal soil loss equation Chapter 5. Summary and conclusions Techniques Erosion processes at Orwell lake Bank recession Literature cited Appendix A1: Average cumulative change of surface at erosion stations #2-12, 1980-81 Appendix A2: Cumulative net changes at overland erosion stations #1-12, 1980-81 Appendix A3: Cumulative net changes at overland erosion stations #1 -12, 198 1-82 Appendix A4: Cumulative average erosion at overland erosion stations #1-12, 1980-81 Appendix AS: Cumulative average erosion at overland erosion stations #1-12, 1981-82 Appendix A6: Cumulative average erosion at overland erosion stations #1 -1 2A, 1982 Appendix B: Dimensions of erosion sections, Orwell Lake, Minnesota Appendix C: Piezometer installation data, Orwell Lake, Minneso
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  • 62
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/33
    In: CRREL Report, 84-33
    Description / Table of Contents: A small-scale experimental study was conducted to characterize the magnitude and nature of ice forces during continuous crushing of ice against a rigid, vertical, cylindrical structure. The diameter of the structure was varied from 50 to 500 mm, the relative velocity from 10 to 210 mm/s, and the ice thickness from 50 to 80 mm. The ice tended to fail repetitively, with the frequency of failure termed the characteristic frequency. The characteristic frequency varied linearly with velocity and to a small extent with structure diameter. The size of the damage zone was 10 to 50% of the ice thickness, with an average value of 30%. The maximum and mean normalized ice forces were strongly dependent on the aspect ratio (structure diameter/ice thickness). The forces increased significantly with decreasing aspect ratio, but were constant for large aspect ratios. The maximum normalized forces appeared to be independent of strain rate. The effect of velocity on the normalized ice forces depended on structure diameter. The mean effective pressure or specific energy of ice crushing depended on both aspect ratio and ice-structure relative velocity. The energy required to crush the ice for the one failure cycle was obtained from the ice force records for each test, and was compared to the energy calculated from an idealized sawtooth shape for the force record, the maximum force, velocity and characteristic frequency data. Originator - supplied keywords included: Cold regions, Cold regions construction, Cylindrical test structures, Ice, Ice crushing, Ice forces, and Test facilities.
    Type of Medium: Series available for loan
    Pages: vi, 47 Seiten , Illustrationen
    Series Statement: CRREL Report 84-33
    Language: English
    Note: Contents Abstract Preface Nomenclature Introduction Test objectives Experimental setup and procedures Facilities Test fixture Data acquisiton system Ice sheets Measurement of ice properties Daily test summary Experimental results and discussion Observations Ice force records Frequency of ice force variations Discussion Maximum crushing forces Mean effective pressure or specific energy of ice in crushing Failure energy of ice Ratio of maximum force to mean force Summary and conclusions Literature cited Appendix A: Data for continuous crushing tests
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  • 63
    Call number: ZSP-201-90/9
    In: CRREL Report, 90-9
    Description / Table of Contents: In 1986, a mobility model was developed for predicting the traction and motion resistance of both wheeled and tracked vehicles on shallow snow, and a winter field season was dedicated to gathering mobility data for a diverse family of vehicles (including four on wheels and three tracked) to validate the model. The original version of the model, SSM 1.0, used the Mohr-Coulomb shear failure equation from soil mechanics to predict gross traction. This required input of the snow strength parameters c and ȹ. Motion resistance is predicted by calculating the amount of work done by the tire in compacting snow and only requires snow depth and density values as input snow properties. Some effort was expended in determining an easy and reliable method of obtaining snow strength established from past instrumented vehicle test results. Historically, shear annulus apparati have been used to obtain Mohr-Coulomb strength parameters. A comparison of snow strength obtained via these three methods (shear annulus, instrumented vehicle, calculated from initial density using the relationship in SSM 1.0) for individual snow covers showed no agreement. SSM 1.0 assumed that snow strength parameters for mobility prediction were a function of initial snow density; however, traction is developed in the compacted snow under the driving element, whose strength properties bore little relation to those of the initial snow. It appears that the shear strength of the compacted snow is essentially a constant for all of the vehicles and snow covers tested here. Based on this finding, a new traction algorithm was developed, resulting in the creation of a second generation model, SSM 2.0. This algorithm predicts gross traction, on the average for the vehicles tested, within 7% of the measured value. Motion resistance prediction remains unchanged in SSM 2.0. This quantity is still not predicted with a desirable level of accuracy.
    Type of Medium: Series available for loan
    Pages: v, 72 Seiten , Illustrationen
    Series Statement: CRREL Report 90-9
    Language: English
    Note: CONTENTS Preface Nomenclature Introduction Background Field experiments Test location and test sites Test vehicles Test procedures Results CIV traction and motion resistance Wheels/trackcs vehicles traction and motion resistance Shear annulus device Accuracy and limitations of data Snow conditons Analysis Determination of snow strength parameters Traction analysis Traction model predictions Resistance analysis Resistance model predictions Conclusions and recommendations Literature cited Appendix A: Shallow snow mobility model, version 1.0 Appendix B: Test vehicle data Appendix C : Selected test data Appendix D : Snow data Appendix E: Shallow snow mobility model code, version 2.0 Abstract
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  • 64
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-92/17
    In: CRREL Report, 92-17
    Description / Table of Contents: The CRREL Instrumented Vehicle (CIV), shear annulus, direct shear, andtriaxial compression devices were used to characterize the strength ofthawed and thawing soil. These strength values can be used in simpletraction models to predict the tractive performance of vehicles. Strength was evaluated in terms of the parameters c' and Φ' based on the Mohr-Coulomb failure criterion. It is proposed here that an instrumented vehicle is best suited for terrain characterization for mobility studies because the conditions created by a tire slipping on a soil surface are exactly duplicated. The c' and Φ' values from the shear annulus were found to overpredict traction because of the low normal stress applied by the annulus and the curved nature of the failure envelope. Of all the tests, the direct shear test yielded the highest Φ' value, most likely because the test was run at a slow deformation rate under drained conditions. The triaxial test results were the most similar to those from the vehicle. All test methods show Φ' increasingwith soil moisture up to the liquid limit of the soil and then decreasing. As measured with the vehicle, was also found to be strongly influenced by the thaw depth.
    Type of Medium: Series available for loan
    Pages: 17 Seiten , Illustrationen
    Series Statement: CRREL Report 92-17
    Language: English
    Note: CONTENTS Introduction Objective Background Strength measurement techniques Triaxial compression Direct shear Shear annulus device CRREL Instrumented Vehicle Discussion Comparison of methods Influence of soil conditions Traction prediction Conclusions References Abstract
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  • 65
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-93/9
    In: CRREL Report, 93-9
    Description / Table of Contents: Traction on winter surfaces was measured using three test vehicles, each designed to measure traction for a different purpose: vehicle mobility research (CRREL Instrumented Vehicle), commercial tire testing (Uniroyal- Goodrich traction tester), and airport runway safety (Saab friction tester). The traction measured with each method is comparable, but there are systematic differences due to the effects of the surface material and the test and analysis technique. This comparison serves as the fundamental basis for collaboration between the various traction testing communities and illustrates the need for well documented test procedures and data analysis as a standard for traction testing and evaluation.
    Type of Medium: Series available for loan
    Pages: iii, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 93-9
    Language: English
    Note: CONTENTS Preface Introduction Traction test methods Saab friction tester Uniroyal-Goodrich traction tester CRREL Instrumented Vehicle Surfaces tested Reporting results and terminology Factors influencing traction Results Traction curves for each surface Traction coefficients Conclusion Literature cited Appendix A: Vehicle instrumentation and samples of graphic output Appendix B: Comparison of measured traction coefficients with published andpredicted values Abstract
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  • 66
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-93/3
    In: CRREL Report, 93-3
    Description / Table of Contents: Results are presented of a study to determine appropriate methods of flow modification for mitigating ice jam formation in navigable rivers. Based on a review of alternative methods for flow modification, it is concluded that for many rivers, especially large ones, the most appropriate method involves controlled ice-cover formation through the regulation of river flow. Flow discharge and stages would be regulated by controlling the flow releases from reservoirs and flow stages at river dams, such that optimal flow conditions prevail for rapid formation, and subsequent maintenance, of an accumulation ice cover over river reaches in which potentially large amounts of frazil ice may grow. Accumulation covers would be formed of frazil ice pans and floes and, if appropriate, broken ice conveyed from upstream. Existing dams, augmented where needed by navigable ice booms, could serve as retention structures for the development of accumulation covers. A preliminary indication of the feasibility of this method for controlling ice-cover formation on stage-regulated pools of the Ohio River is assessed through the use of a numerical model that simulates ice-cover formation from frazil ice. It is found that this approach holds promise for mitigating jam occurrence, although its implementation necessarily entails management of flow through major portions of the Ohio River. The results of the study are, to a limited extent, generalized to other rivers.
    Type of Medium: Series available for loan
    Pages: v, 58 Seiten , Illustrationen
    Series Statement: CRREL Report 93-3
    Language: English
    Note: CONTENTS Preface Nomenclature Introduction Background Scope of the study Control of river ice formation Control methods Controlled ice-cover formation for the upper Ohio River Numerical simulation of ice-cover formation Flow profile Water temperature variation Frazil ice growth Ice-cover progression Thermal growth of ice cover Numerical results Illustration of simulated ice-:over formation Ice-cover formation in the Hannibal and Montgomery pools Generalized results Conclusions and recommendations Literature cited Appendix A: Expression for coefficients Appendix B: Listing of computer program
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  • 67
    Monograph available for loan
    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-93042-2
    In: Interregional Training Course on Radiochemistry, [Supplement]
    Type of Medium: Monograph available for loan
    Pages: 88 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 2.2 The relative measurement of aktivity Lectures 1.3 Statistics / H. Baumbach 2.2 Sealed sources / K. Vormum 2.4 Energy dispersive x-ray fluorescence analysis / H.-K. Bothe 3.1 The use of carriers / H. Koch 4.3 Autoradiography / K. Freyer 6.1 Radiometric methods in environmental control / H.-J. Große
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  • 68
    Monograph available for loan
    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-93042-1
    In: Interregional Training Course on Radiochemistry, [Hauptband]
    Type of Medium: Monograph available for loan
    Pages: 248 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 1.1 Beta measurements 1.2 Measurement of the energy spectrum and range of α-radiation with semiconductor detectors 1.3 Error and statistical tests 1.4 Basic experiments of gamma spectroscopy 2.1 Determination of certain elements in sedimental atmospheric dust by x-ray fluorescence analysis 2.2 Calibration and efficiencies (see Supplement) 2.3 Thin-layer chromatographic separation and test of the purity of labelled compounds 2.4 Separation of Thorium-234 from Uranium-238 2.5 Separation of 137Ca/137mBa by precipitation and sorption 3.1 Determination of phosphate by simple isotope dilution analysis and determination of Zn in MgSO4 by substoichiometric isotope dilution analysis 3.2 The Szilard-Chalmers effect 3.3 Determination of the Ag content in slags by instrumental neutron activation analysis 4.1 Isotope exchange of Ethyl Iodide and Sodium Iodide 4.2 Liquid scintillation counting of Carbon-14 and Tritium 4.3 Autoradiography - Demonstration of Autoradiographic techniques Lectures 1.1 Fundamentals of radioactivity / G. K. Vormum 1.2 Interaction of nuclear radiation with matter / G. K. Vormum 1.4 Equations of radioactive decay / G. K. Vormum 1.5 Radiation detectors / M. Geisler 2.1 Radiation spectroscopy / M. Geisler 2.5 Handling of radioisotopes / G. K. Vormum 2.7 Behaviour of radionuclides in very low concentrations / H. Koch 3.6 Particle sources / J. W. Leonhardt 4.2 Tracers in chemical kinetics / J. Dermietzel 4.4 Liquid Scintillation Counting (LSC) / R. Trettin 5.1 Isotopic tracers in biology / H. Hübner 5.2 Low-level counting / R. Trettin 5.4 Basic concepts of radioimmunoassay (RIA) / G. K. Vormum 6.2 Radionuclide generators / R. Otto
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  • 69
    Monograph available for loan
    Monograph available for loan
    Dordrecht : Springer | New York [u.a.] : Chapman & Hall
    Call number: AWI G3-20-93489
    Description / Table of Contents: Frozen Ground Engineering first introduces the reader to the frozen environment and the behavior of frozen soil as an engineering material. In subsequent chapters this information is used in the analysis and design of ground support systems, foundations, and embankments. These and other topics make this book suitable for use by civil engineering students in a one-semester course on frozen ground engineering at the senior or first-year-graduate level. Students are assumed to have a working knowledge of undergraduate mechanics (statics and mechanics of materials) and geotechnical engineering (usual two-course sequence). A knowledge of basic geology would be helpful but is not essential. This book will also be useful to advanced students in other disciplines and to engineers who desire an introduction to frozen ground engineering or references to selected technical publications in the field. BACKGROUND Frozen ground engineering has developed rapidly in the past several decades under the pressure of necessity. As practical problems involving frozen soils broadened in scope, the inadequacy of earlier methods for coping became increasingly apparent. The application of ground freezing to geotechnical projects throughout the world continues to grow as significant advances have been made in ground freezing technology. Freezing is a useful and versatile technique for temporary earth support, groundwater control in difficult soil or rock strata, and the formation of subsurface containment barriers suitable for use in groundwater remediation projects.
    Type of Medium: Monograph available for loan
    Pages: x, 352 Seiten , Illustrationen
    ISBN: 978-1-4757-2292-5
    Language: English
    Note: Contents PREFACE CHAPTER 1. FROZEN GROUND 1.1 Frozen ground support systems Frozen earth wall Design considerations 1.2 Seasonally and perennially frozen ground Cold regions: definition Subsurface temperatures Active layer, Permafrost 1.3 Terrain features in permafrost areas Ground ice features Patterned ground 1.4 Engineering considerations Freezing process Thawing of frozen ground Frost action Useful aspects of frozen ground Ice as a construction material Problems CHAPTER 2. PHYSICAL AND THERMAL PROPERTIES 2.1 Composition and structure of frozen ground Soil types Phase relationships Ice phase Particle size and size distribution Consistency of cohesive soils 2.2 Soil classification Unified soil classification system Frozen soil classification 2.3 Water-ice phase relationships Unfrozen water in frozen soil Effect of solutes on freezing 2.4 Soil frost action Frost action process Frost susceptibility of soils Frost-heave forces Freeze-thaw effects on permeability 2.5 Thermal properties Thermal conductivity Heat capacity Thermal diffusiuity Latent heat of fusion Thermal expansion (or contraction) Problems CHAPTER 3. HEAT FLOW IN SOILS 3.1 Heat transfer at the ground surface Climatic factors Freezing (or thawing) indices Surface n-factor 3.2 Seasonal ground freezing (or thawing) Frost depth Thawing of frozen soil Design implications 3.3 Temperature below cooled (or heated) areas Steady state heat flow Transient temperatures Periodic heat flow 3.4 Thermal analysis: frozen ground support systems Single freeze pipe Wall formation Multiple rows of freeze pipes Problems CHAPTER 4. THAW BEHAVIOR OF FROZEN GROUND 4.1 Thaw settlement 4.2 Consolidation of thawing soils Thaw consolidation Residual stress in thawing soils 4.3 Thaw-consolidation in some layered systems Two layer soil problems Compressible soil ouer discrete ice layers Problems CHAPTER 5. MECHANICAL PROPERTIES OF FROZEN SOILS 5.1 Stress-strain-time and strength behavior Hydrostatic pressure effect on frozen soil behavior Shear stress effect on frozen soil behavior 5.2 Factors influencing creep and strength Creep of frozen soil under constant stress Stress-strain behavior under constant strain rate Ice content effect on strength Normal pressure effect on strength Strain rate effect on strength Temperature effect on strength Frozen soil behauior at cryogenic temperatures 5.3 Analytical representation of creep and strength data General creep equation Strength of frozen soils Comparison with Vyalou's creep and strength equations Normal pressure effect on creep and strength Salinity effect on frozen soil creep and strength 5.4 Frozen soil behavior in uniaxial tension 5.5 Deformability of frozen soils 5.6 Compressibility of frozen soils Problems CHAPTER 6. CONSTRUCTION GROUND FREEZING 6.1 Design considerations Ground freezing applications Soil conditions Groundwater flow Ground movement 6.2 Freezing methods and system installation Primary plant and pumped loop secondary coolant Expendable liquid refrigerant Installation of the cooling system 6.3 Structural design of frozen earth walls Curved walls Straight walls and combinations Tunnels Finite-element method 6.4 Monitoring requirements Freeze hole deviation Temperature Frost boundary location and wall thickness 6.5 Other construction considerations Protection of exposed frozen earth Concrete placement against frozen earth Problems CHAPTER 7. FOUNDATIONS IN FROZEN SOILS 7.1 General considerations Foundations in seasonally frozen ground Foundations in permafrost 7.2 Shallow foundations Selection of foundation method Design of shallow foundations Bearing capacity Settlement considerations 7.3 Pile foundations Pile types Pile placement Pile freezeback Axially loaded piles Laterally loaded piles Anchors in frozen ground 7.4 Frost-heave forces on foundations Tangential forces on a vertical surface Design for frost heave Problems CHAPTER 8. STABILITY OF SOIL MASSES IN COLD REGIONS 8.1 Landslides in permafrost: classification 8.2 Slopes in thawing permafrost Low-angle planar flows Slides 8.3 Slopes in frozen soils 8.4 Slope stabilization methods Construction and design techniques Stabilization of planar slides Stabilization of cut slopes Problems CHAPTER 9. EARTHWORK IN COLD REGIONS 9.1 Site considerations Drainage Thermal and frost action factors Subsurface conditions Material sources 9.2 Excavation and transport Mechanical excavation Drilling and blasting Thawing frozen soil Hydraulic dredging 9.3 Field placement Compaction Placement in water 9.4 Water-retaining embankments on permafrost Unfrozen embankments Frozen embankments Maintaining the frozen state Thermal and stability considerations 9.5 Embankment performance Frost heave Settlement Stability Artificial islands CHAPTER 10. FIELD INVESTIGATIONS 10.1. Sampling frozen ground Sampling methods Sample protection 10.2 Ground-temperature measurement Temperature sensors and measuring equipment 10.3 Field testing of frozen soils Field test methods Pressuremeter test Deep static cone penetration test Other types of field tests 10.4 Geophysical methods Seismic velocities in frozen ground Electrical properties of frozen ground Geophysical techniques used in frozen ground High-frequency electrical methods Borehole logging in permafrost APPENDIX A. SYMBOLS APPENDIX B. SI UNITS APPENDIX C LABORATORY AND FIELD TESTS ON FROZEN SOILS C1 Handling, storage, and machining of specimens prior to testing C2 Uniaxial compression test C3 Uniaxial tensile test C.4 Salinity of soil pore water C5 Thermosiphon C6 Pile load test in permafrost REFERENCES AUTHOR INDEX SUBJECT INDEX
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  • 70
    Call number: AWI NBM-19-92759
    Type of Medium: Non-book medium
    Pages: 1 Videokassette (VHS, 58 Min.) : farbig , 58 min
    Language: English
    Note: A message to the world .... Antarctica, the last true wilderness, must remain inviolate, free from polution and exploitation, a living laboratory for scientific research and a continent of unsurpassed beauty for the inspiration of mankind.
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  • 71
    Call number: ZSP-201-82/15
    In: CRREL Report, 82-15
    Description / Table of Contents: An experiment is described that demonstrates the balance between the ice and the unfrozen water in a frozen soil as water is removed. Nuclear magnetic resonance (NMR) is used to monitor the unfrozen water content as the soil is dehydrated by a molecular sieve material. Our results show that the unfrozen water content of a Morin clay soil remains constant until the total water content has been reduced to the point where no ice remains in the system. Once the ice is depleted, the unfrozen water content determined by NMR corresponds to the total water content of the soil determined by the weight of water removed by the molecular sieve material. Thus the validity of utilizing NMR in determining unfrozen water contents vs temperature is established.
    Type of Medium: Series available for loan
    Pages: 8 Seiten , Illustrationen
    Series Statement: CRREL Report 82-15
    Language: English
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  • 72
    Call number: AWI G6-19-93207
    Type of Medium: Monograph available for loan
    Pages: 42 Blätter
    Language: English , German
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  • 73
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/11
    In: CRREL Report, 80-11
    Description / Table of Contents: Four types of roof leaks occurred at a new school building in Chevak, Alaska: 1) blowing snow entered the roof through eave vents and then melted, 2) slush and ice in roof valleys caused meltwater to overflow the valley flash­ing and run into the building, 3) water entered at a roof/wall intersection and 4) in many areas water entered through gaps in the sloping plywood deck. Sealing the eave vents made it impossible for blowing snow to enter the roof at the eaves. Electric heat tapes eliminated the valley icing problem. Missing flashing was responsible for the roof/wall intersection leaks. The absence of a vapor barrier in the roof was the cause of many leaks. We recom­mended that the roof be repaired from the exterior by removing component elements down to the plywood deck,installing an adhered continuous vapor barrier and reassembling the roof. An alternative roof cladding of compos­ition shingles was discussed as was conversion to a “cold roof.” The roof was repaired and modified following our recommendations, and problems appear to have been solved.
    Type of Medium: Series available for loan
    Pages: iv, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 80-11
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors Introduction Description of school Roof problems Snow infiltration leaks Valley leaks Intersection leaks Condensation leaks Tests to verify the cause of condensation leaks Eliminating the condensation leaks Recommendations for eliminating condensation leaks Repairing existing roof An alternative roof cladding The "cold roof" alternative Repairs and modifications Summary and conclusions
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  • 74
    Monograph available for loan
    Monograph available for loan
    Cambridge : British Antarctic Survey
    Call number: AWI Bio-21-94362
    Type of Medium: Monograph available for loan
    Pages: 214 Seiten , Illustrationen , 30 cm
    Edition: 1st published
    ISBN: 0856651400
    Language: English
    Note: TABLE OF CONTENTS ECOLOGY 1 Sea ice: its formation, distribution and properties 2 Ice-associated ecosystems 3 Ice diatoms 4 Techniques for sampling sea-ice algae 5 The Antarctic planktonic ecosystem 6 Some aspects of the large-scale physical oceanography of the Arctic Ocean influencing biological oceanography 7 Arctic planktonic ecosystems 8 Arctic plankton diatoms: dominant species, biogeography 9 The paleontological significance of fossil diatoms from the high-latitude oceans TAXONOMY 10 Key to diatom families and glossary 11 Family Thalassiosiraceae Section 1: the genera Skeletonema, Pororsira, Bacterosira, and Detonula and the genus Thalassiosira from the Arctic Section 2: the genus Thalassiosira from the Antarctic 12 Family Leptocylindraceae: the genus Corethron 13 Family Coscinodiscaceae: the genus Stellarima 14 Family Hemidiscaceae: the genera Actinocyclus and Azpeitia 15 Family Rhizosoleniaceae: the genera Rhizosolenia and Proboscia 16 Family Biddulphiaceae: the genus Eucampia 17 Family Diatomaceae: the genera Thalassiothrix and Trichotoxon 18 Family Naviculaceae: Arctic species of the genera Diploneis, Gyrosigma, Haslea, Navicula, Pinnularia, Pleurosigma, Stauroneis and Stenoneis 19 Family Naviculaceae: the genera Plagiotropis, Manguinea, Membraneis, and Banquisia 20 Family Naviculaceae: the genus Pseudogomphonema 21 Family Auriculaceae and Bacillariaceae: the genera Auricula, Hantzschia, and Nitzschia 22 Family Bacillariaceae: the genus Nitzschia section Pseudonitzschia 23 Family Bacillariaceae: the genus Nitzschia section Nitzschiella 24 Family Bacillariaceae: the genus Nitzschia section Fragilariopsis BIBLlOGRAPHY
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  • 75
    Call number: AWI G4-22-94986
    Description / Table of Contents: Hydrological processes occurring within the vadose zone, especially in heterogeneous soils and tills typical of the Canadian shield, are not well understood. This research investigates the importance of the vadose zone in a small headwater basin (Harp 4-21) in the Canadian shield with respect to the generation of stream runoff quantity and quality during episodic rainfall and snowmelt events. The study focused specifically on: firstly the effect of variable antecedent moisture conditions on water-table and stream response, secondly, the significance of the stored vadose water in water extracted from a rising water-table, and thirdly the significance of preferential flowpathways in the vadose zone as a means of rapidly rotating, stored vadose water to the stream during runoff events. The instrumentation of the Harp 4-21 basin includes three v-notch weirs along the stream, numerous piezometers and wells, several soil lysimeters, and three tensiometer nests. Much of the data used in this study was obtained from five sites located along a hillslope transect. Soil water content at each of the hillslope sites was accurately determined using time domain reflectometry (TDR), whereas water table elevations were measured using both electronic water level tapes and calibrated rod floats. Preferential flowpath data was derived from flow gauging and chemical analyses of water samples. Results obtained from the near-stream and lower slope reaches of the hillslope transect indicated that soil water content in the vadose zone is maintained at a high level of saturation by shallow water-table depths. Further analysis of simultaneously measured soil water content and depth to water—table data clearly showed that the existence of a thick essentially saturated zone overlying the water table (capillary fringe) was responsible for the large and rapid water-table responses observed during many of the nine studied precipitation events. On a basin scale, the seasonal variability of the area in which the capillary fringe extended to the ground surface was largely responsible for the observed trend in basin yield (runoff volume/ rainfall volume) for the nine runoff events. Chemical tracing results using silica, pH and DOC showed that the large vadose water reservoir in the near-stream and lower slope areas was a dominant component in water extracted from a rising water-table during most precipitation events. Silica results from the near-stream vadose zone showed that only the massive groundwater recharge associated with spring snowmelt could completely replace the vadose water reservoir with shorter residence time snowmelt/rainfall water. The rapid routing of stored near-stream capillary fringe vadose water through preferential pathways (macropores, soil pipes) was a significant source of runoff to the stream during runoff events. The presence of soil pipes, along with the significant vadose water reservoir in near-stream and lower slope areas are sufficient to explain the large phreatic/vadose water component typically identified in two component flow separation models, and constitutes the basis of a physically-based conceptual runoff model for the Harp 4-21 basin.
    Type of Medium: Dissertations
    Pages: 172 Seiten , Illustrationen
    Language: English
    Note: Masterarbeit, Wilfrid Laurier University, Waterloo, 1992 , Table of Contents Abstract Acknowledgements List of Figures List of Tables Chapter 1 Introduction and Literature Review 1.1 introduction 1.2 Research objectives 1.3 Literature review 1.3.1 Overland flow 1.3.2 Overland flow from partial areas 1.3.3 Subsurface stormflow 1.3.4 The variable source area subsurface stormtlow concept 1.3.5 Groundwater and the capillary fringe effect 1.3.6 Preferential flow 1.3.6.1 Macropore flow 1.3.6.2 Unstable flow 1.4 Summary of uncertainties in the vadose zone Chapter 2 Methodology 2.1 Introduction 2.2 The Harp 4-21 basin: site description 2.2.1 Basin topography 2.2.2 Bedrock and surficial geology 2.2.3 Vegetation 2.2.4 General hydrology 2.3 Basin instrumentatio 2.3.1 Stream 2.3.2 Phreatic zone 2.3.3 Vadose zone 2.3.3.1 Soil moisture 2.3.3.2 Preferential flowpaths 2.4 Hillslope transect instrumentation 2.4.1 The hillslope transect 2.4.2 Time domain reflectometry 2.4.3 Vadose water extraction 2.5 Sampling techniques, frequency and chemical analyses 2.5.1 Precipitation 2.5.2 Stream 2.5.3 Phreatic zone 2.5.4 Vadose zone 2.5.4.1 Soil moisture measurement and analysis of the TDR trace 2.5.4.2 Vadose water sampling 2.5.5 Chemical analysis Chapter 3 Results and Discussion: Antecedent Moisture Conditions 3.1 Introduction 3.2 Runoff events ~ampled during the May 1990 - April 1991 field season 3.3 Assessment of antecedent moisture conditions in the Harp 4-21 basin 3.3.1 Seasonal basin yield 3.3.2 Seasonal depth to water-table 3.3.3 Tensiometric data 3.3.4 Soil moisture conditions in the hillslope transect (Time Domain Reflectometry) 3.3.4.1 Soil water content/depth to water-table relationship 3.3.4.2 Estimation of the capillary fringe thickness and the temporal variation of basin area in which it extends to the ground surface 3.4 Assessment of the origin of water in the vadose zone of near-stream and lower slope areas which experience significant water-table responses during runoff generating events 3.4.1 Introduction 3.4.2 Near-stream 07 piezometer nest 3.4.3 Lower slope TD4 mini-piezometer nest Chapter 4 Preferential flowpathways: Results and discussion 4.1. Discharge contributions to streamflow during runoff events 4.2. Assessment of the origin of water emmitted from the soil pipes during runoff events Chapter 5 Conclusions References Appendix I Appendix II Appendix Ill Appendix IV Appendix V , Englisch
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  • 76
    Call number: AWI G6-23-95004
    Type of Medium: Monograph available for loan
    Pages: vii, 100 Seiten , Illustrationen
    Language: English
    Note: Bachelorarbeit, Wilfrid Laurier University, 1993 , TABLE OF CONTENTS Chapter 1 Introduction Chapter 2 Literature Review 2.1 Introduction 2.2 Water Balance 2.3 Nutrient Inputs 2.4 Models Chapter 3 Study Site and Site Characteristics 3.1 Study Site Location 3.2 Geology 3.3 Surface Cover 3.4 Permafrost Depth 3.5 Lake Formation 3.6 Lake Characteristics 3.7 Lake Sub Basin Characteristics 3.8 Climate 3.9 Precipitation and Melt 3.10 Evaporation Chapter 4 Methods 4.1 Introduction 4.2 Physical Sampling 4.2.1 Water Level 4.2.2 Stream Discharge 4.2.3 Precipitation 4.2.4. Radiation 4.2.5 Evaporation 4.2.6 Groundwater 4.3 Chemical Sampling 4.3.1 Total Phosphorus 4.4 Biological Sampling 4.4.1 Chlorophyll a 4.5 Water Balance 4.6 Nutrient Inputs 4.7 Models 4.7.1 Predicting Total Phosphorus Concentrations 4.7.2 Chlorophyll a Chapter 5 Results 5.1 Introduction 5.2 Water Balance 5.2.1 Lake Storage 5.2.2 Stream Discharge 5.2.3 Precipitation 5.2.4 Radiation 5.2.5 Evaporation 5.2.6 Groundwater 5.3 Nutrient Inputs 5.4 Models 5.4.1 Predicting Total Phosphorus Concentrations 5.4.2 Chlorophyll a Chapter 6 Discussion 6.1 Introduction 6.2 Water Balance 6.3 Nutrient Inputs 6.4 Models Chapter 7 Further Study Appendices Appendix 1 Lake Storage Appendix 2 Discharge Data Appendix 3 Precipitation Appendix 4 Radiation Appendix 5 Evaporation Appendix 6 Nutrient Data Appendix 7 Chlorophyll a Bibliography , Englisch
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  • 77
    Series available for loan
    Series available for loan
    College, Alas. : Division of Geological and Geophysical Surveys
    Call number: AWI G3-23-95009
    Type of Medium: Series available for loan
    Pages: IX,109 Seiten , Illustrationen
    Series Statement: Special report / Division of Geological and Geophysical Surveys 15
    Language: English
    Note: CONTENTS Introduction Sources of information Acknowledgments Physical setting of the Fairbanks area Topography and geology Climate Selected references Frozen ground Seasonally frozen ground Definition The problem Cause of frost heaving Frost action in the Fairbanks area Frost action on pile construction Highway bridges The Alaska Railroad Trans-Alaska Pipeline System Other frost-heave problems Loss of bearing strength Solutions to the frost-action problem Permafrost Definition The problem Origin and thermal regime Distribution and thickness Permafrost in the Fairbanks area Permafrost of the flood plain Permafrost of alluvial fans, colluvial slopes, and silt lowlands Boundaries between permafrost and non permafrost areas Character of ground ice Principles of land use in permafrost areas Ground subsidence caused by thawing of ice-rich permafrost Preliminary statement Thermokarst phenomena General features Therrnokarst mounds Therrnokarst pits Effects on agricultural development Effects on railroads Effects on roads and highways Effects on airfields Effects on heated buildings Effects on natural-gas and oil pipelines General statement Gas pipelines Trans-Alaska Pipeline System Effects on buried utility lines Indicators of permafrost Recognition of the problem Vegetation Small landforms and natural surface patterns Selected references Ground water Preliminary statement Ground water in the Fairbanks area Preliminary statement Tanana and Chena River flood plains Upland hills Lower hillslopes and creek-valley bottoms Geologic hazards associated with ground-water movement in permafrost regions Preliminary statement Artesian wells Icings Seepage icings Stream icings Summary of icings Pingos Selected references Earthquakes Introduction Causes and locations of earthquakes Classification and terminology of earthquakes Earthquake hazards in the Fairbanks area Summary of the earthquake hazard Selected references Landslides Landslides in the Fairbanks area Selected references Hillside erosion in loess Preliminary statement Examples of loess erosion Selected references Flooding Introduction History of flooding in the Fairbanks area Frequency of flooding in the Fairbanks area Solution to the problem of flooding Introduction Structural measures Nonstructural measures Flood proofing Flood warning and evacuation Flood insurance Selected references , Englisch
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  • 78
    Monograph available for loan
    Monograph available for loan
    Anchorage, Alas. : Bureau of Land Management, Alaska State Office | Anchorage, Alas. : Alaska Natural History Association
    Call number: AWI G3-23-95156
    Type of Medium: Monograph available for loan
    Pages: 128 Seiten , Illustrationen, Karten , 27 cm
    ISBN: 0930931106 , 0-930931-10-6
    Language: English
    Note: Contents Foreword Introduction Oil - Catalyst for change The Haul Road - Highway to the Arctic Origins: The geologic setting Glaciers shape the land Glaciation and wildlife distribution Permafrost and the periglacial environment The Dalton Highway road log Glossary Selected references
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  • 79
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Macmillan College Pub. Co. [u.a.]
    Call number: AWI A5-18-91528
    Type of Medium: Monograph available for loan
    Pages: xx, 517 p. , ill. (some col.), maps (some col.) , 25 cm
    Edition: 4th ed.
    ISBN: 0023833416
    Language: English
    Note: Contents: Introduction. - 1 Atmosphere: Origin, Composition, and Structure. - Understanding the Atmosphere. - Evolution of the Atmosphere. - Probing the Atmosphere. - Temperature Profile of the Atmosphere. - The Ionosphere and the Aurora. - Conclusions. - Special Topic: The Martian Atmosphere. - Special Topic: The Ionosphere and Radio Transmission. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 2 Radiation. - Electromagnetic Radiation. - Radiation Laws. - Input of Solar Radiation. - Solar Radiation and the Atmosphere. - The Ozone Shield. - Solar Radiation and the Earth's Surface. - Solar Radiation Budget. - Infrared Response and the Greenhouse Effect. - Radiation Measurement. - Conclusions. - Special Topic: Why Is the Sky Blue?. - Special Topic: The Hazards of Sunbathing. - Weather Fact: Greenhouse Effect on Mars and Venus. - Mathematical Note: Blackbody Radiation Laws. - Key Terms. - Summary Statements. - Review Questions. - Quantitative Questions. - Questions for Critical Thinking. - Selected Readings. - 3 Heat and Temperature. - Distinguishing Heat and Temperature. - Temperature Scales. - Temperature Measurement. - Heat Units. - Transport of Heat. - Specific Heat. - Heating and Cooling Degree-days. - Windchill. - Conclusions. - Special Topic: Temperature and Human Comfort. - Special Topic: Temperature and Crop Yields. - Key Terms. - Summary Statements. - Review Questions. - Quantitative Questions. - Questions for Critical Thinking. - Selected Readings. - 4 Heat Imbalances and Weather. - Heat Imbalance: Atmosphere Versus Earth's Surface. - Heat Imbalance: Variation by Latitude. - Weather: Response to Heat Imbalances. - Variation of Air Temperature. - Conclusions. - Special Topic: The Unique Thermal Properties of Water. - Special Topic: Solar Power. - Weather Fact: Why Mountaintops Are Cold. - Key Terms. - Summary Statements. - Review Questions . - Quantitative Questions. - Questions for Critical Thinking. - Selected Readings. - 5 Air Pressure. - Defining Air Pressure. - Pressure Balance. - Variation with Altitude. - Horizontal Variations. - Highs and Lows. - Air Pressure Measurement. - Pressure Units. - The Gas Law. - Conclusions. - Special Topic: Human Response to Changes in Air Pressure. - Special Topic: Altimetry. - Mathematical Note: The Gas Law. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 6 Humidity and Stability. - The Hydrologic Cycle. - How Humid Is It?. - The Saturation Concept. - Relative Humidity. - Humidification. - Humidity Measurement. - Achieving Saturation. - Atmospheric Stability. - Lifting Processes. - Conclusions. - Special Topic: Humidity and Human Comfort. - Special Topic: Clouds by Mixing. - Weather Fact: The Rainiest Place on Earth. - Mathematical Note: Energy Conservation and the Dry Adiabatic Process. - Key Terms. - Summary Statements. - Review Questions. - Quantitative Questions. - Questions for Critical Thinking. - Selected Readings. - 7 Dew, Frost, Fog, and Clouds. - Low-Level Saturation Processes. - Cloud Development. - Classification of Clouds. - Unusual Clouds. - Conclusions. - Special Topic: Freeze Prevention. - Special Topic: Jack Frost and Autumn Color. - Key Terms. - Summary Statements. - Review Questions. - Quantitative Questions. - Questions for Critical Thinking. - Selected Readings. - 8 Precipitation, Weather Modification, and Atmospheric Optics. - Precipitation Processes. - Forms of Precipitation. - Precipitation Measurement. - Weather Modification. - Atmospheric Optics. - Conclusions. - Special Topic: When Is It Too Cold or Too Warm to Snow?. - Special Topic: Mirages. - Key Terms. - Summary Statements. - Review Questions. - Quantitative Questions. - Questions for Critical Thinking. - Selected Readings. - 9 The Wind. - The Forces. - Joining Forces. - Continuity of Wind. - Scales of Weather Systems. - Wind Pressure. - Wind Measurement. - Conclusions. - Special Topic: Wind Power. - Special Topic: Wind Gusts, Wind Shear, and Atmospheric Stability. - Weather Fact: The Windiest Place on Earth. - Mathematical Note: Geostrophic and Gradient Winds. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 10 Planetary-Scale Circulation. - Idealized Circulation Pattern. - Pressure Systems and Wind Belts. - Upper-Air Westerlies. - El Niño/Southern Oscillation (ENSO). - Conclusions. - Special Topic: The ENSO Event of 1982-83. - Mathematical Note: The Polar Front and the Midlatitude Jet Stream. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 11 Air Masses, Fronts, Cyclones, and Anticyclones by Patrìda M. Pauley. - Air Masses. - Frontal Weather. - Midlatitude Cyclones. - Anticyclones. - Conclusions. - Special Topic: The Case of the Missing Storm. - Mathematical Note: Vorticity. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 12 Local and Regional Circulation Systems. - Monsoons. - Land and Sea (or Lake) Breezes. - Lake-Effect Snows. - Heat Island Circulation. - Katabatic Winds. - Chinook Winds. - Desert Winds. - Mountain and Valley Breezes. - Conclusion. - Special Topic: Monsoon Failure and Drought in Sub-Saharan Africa. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 13 Thunderstorms. - Thunderstorm Life Cycle. - Thunderstorm Genesis. - Geographical Distribution. - Severe Thunderstorms. - Thunderstorm Hazards. - Conclusions. - Special Topic: Lightning Safety. - Special Topic: Hail Suppression. - Weather Fact: The Rumble of Thunder. - Key Terms. - Summary Statement. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 14 Tornadoes. - Tornado Characteristics. - Distribution of Tornadoes. - Hazards of Tornadoes. - The F-Scale. - The Tornado-Thunderstorm Connection. - Tornado Look-Alikes. - Weather Radar. - Conclusions. - Special Topic: Wind Profilers. - Weather Fact: Tornado Oddities. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 15 Hurricanes. - Hurricane Characteristics. - Distribution of Hurricanes. - Hazards of Hurricanes. - Life Cycle of Tropical Storms. - Hurricane Threat to the Southeast. - Hurricane Modification. - Conclusions. - Special Topic: Atlantic Hurricanes and West African Rainfall. - Weather Fact: Naming Hurricanes. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 16 Weather Analysis and Forecasting. - World Meteorological Organization. - Acquisition of Weather Data. - Meteorology by Satallite. - Data Depiction on Weather Maps. - Weather Prediction. - Communication and Dissemination. - Conclusions. - Special Topic: Weather Proverbs: Fact or Fiction?. - Special Topic: Aviation Weather Hazards. - Mathematical Note: Some Orbital Characteristics of Weather Satellites. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 17 Air Pollution Meteorology. - Air Pollutants. - Air Pollution Episodes. - Air Pollution's Impact on Weather. - The Ozone Shield. - Conclusions. - Special Topic: Principal Air Pollutants. - Key Terms. - Summary Statements. - Review Questions. - Questions for Critical Thinking. - Selected Readings. - 18 World Climates. - Describing Climate. - Climate Controls. - Global Patterns of Climate. - Climate Classification. - Conclusions. - Special Topic: 1816, The Year Without a Summer?. - Special Topic: Agroclimatic Compensation: The Be
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  • 80
    Call number: AWI A14-18-91746
    In: NASA Reference Publication, 1233, Vol. 2
    Description / Table of Contents: A gridded surface elevation data set and a geo-referenced data base for the Seasat radar altimeter data over Greenland are described in this volume. It is intended to be a "user's guide" to accompany the data provided to data centers and other users. The grid points are on a polar stereogrphic projection with a nominal spacing of 20 km. The gridded elevations are derived from the elevation data in the geo-referenced data base by a weigthed fitting of a surface in the neighborhood of each grid point. The gridded elevations are useful for the creating of large-scale contour maps, and examining individual elevation measurements in specific geographic areas. Tape formats are described, ans a FORTRAN program for reading the data tape is listed and provided on the tape. For more details of the data processing procedures and corrections that were derived and applied to the data, see Volume 1 of this series.
    Type of Medium: Monograph available for loan
    Pages: 92 Seiten , Illustrationen, graphische Darstellungen
    Series Statement: NASA Reference Publication 1233, Vol. 2
    Language: English
    Note: Table of Contents: Preface. - 1.0 Introduction. - 2.0 Geo-referenced data base. - 3.0 Polar stereographic elevation grid. - 4.0 Goid grid. - Tables. - Appendix. - References.
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  • 81
    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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  • 82
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/24
    In: CRREL Report, 82-24
    Description / Table of Contents: Velocity data derived from petroleum industry seismic records from Harrison Bay show that high-velocity material ( or = 2 km/s) interpreted to be ice-bonded permafrost is common. In the eastern part of the bay, the depth to high velocity material increases and velocity decreases in an orderly manner with increasing distance from shore until the layer is no longer apparent. The western part of the bay is less orderly, possibly reflecting a different geological and thermal history. This western part may be an inundated section of the low coastal plain characterized by the region north of Teshekpuk Lake, and could have contained deep thaw lakes, creating low velocity zones. Along some seismic lines, the high-velocity material extends approximately 25 km offshore. Two anomalies have been found which could be associated with rapidly degrading permafrost. One is strong attenuation, which was interpreted as an indication of gas in the shallow deposits. The other is the presence of considerable seismic noise, including identifiable small seismic events. The origin of this noise has not been positively established, and it is proposed that it may indicate that some movement is occurring in the sediments due to thaw.
    Type of Medium: Series available for loan
    Pages: 65 Seiten , Illustrationen
    Series Statement: CRREL Report 82-24
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods Reading records Refractions Reflections Rayleigh waves Spatial resolution Anomalies Results and discussion Seismic velocity distribution Attenuation Low-level natural seismicity Summary Literature cited Appendix A: Error estimates Appendix B: Velocity profiles Appendix C: Seismic cross sections
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  • 83
    Call number: ZSP-201-82/26
    In: CRREL Report, 82-26
    Description / Table of Contents: The Caribou-Poker Creeks Research Watershed is a small (101.5-sq km) drainage basin located 48 km northwest of Fairbanks, Alaska. Elevations within the watershed range from 210 to 826 m, and approximately 28% of its area is underlain by permafrost. Climatic differences between the watershed and Fairbanks are primarily due to the higher elevation of the watershed. Generally the watershed climatic sites are warmer in winter and cooler in summer than Fairbanks. Within the watershed the greatest temperature contrasts exist in winter, when the valley-bottom sites are beneath the regional air temperature inversion, and the higher sites are above it. From May through September the total precipitation averages 270 mm, 1.47 times that received at Fairbanks. The annual precipitation is about 1.7 times that of Fairbanks. The historical precipitation record at Fairbanks indicates that summer precipitation was below the long-term normal in eight of the eleven years of watershed measurements (1969-1980); no climatic extremes occurred during this period. An analysis of annual streamflow data showed an inconsistency of baseflow recessions from year to year. The runoff-rainfall ratio for individual summer storms averaged 0.35 for Caribou Creek. Comparisons of spot discharge measurements of predominantly permafrost and non-permafrost subwatersheds showed that permafrost-dominated watersheds have a much flashier response to precipitation than non-permafrost watersheds. A comparison of the annual flow distribution of the watershed indicated that Caribou Creek has lower summer and higher winter discharges per unit area than the Chena or Salcha Rivers.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 82-26
    Language: English
    Note: CONTENTS Abstract Preface Introduction Setting Geology and soils Vegetation Climate Air temperature Precipitation Hydrology Annual and monthly runoff Individual storms Baseflow recessions Spatial flow variability Temporal flow variability Summary and conclusions Literature cited Appendix A: Station histories
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  • 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-201-82/27
    In: CRREL Report, 82-27
    Description / Table of Contents: Recommendations for economical thicknesses for building insulation result from a study of fuel and construction costs of 12 military installations in Alaska. A comparison between the insulation thickness that a building owner might choose today and what he might choose in 20 years indicates a trend for much thicker insulation in the future. An analysis of how much more expensive a building built today with the thickness that would be appropriate 20 years hence indicates only a small penalty in life-cycle costs for the additional insulation. Therefore, a minimum of R-32 walls and R-62 attics is recommended for most of Alaska.
    Type of Medium: Series available for loan
    Pages: 54 Seiten , Illustrationen
    Series Statement: CRREL Report 82-27
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors Summary Introduction Determining economic thicknesses for insulation Background Analysis method for new construction Analysis method for reinsulating existing construction Sensitivity and longevity of the results Sensitivity Longevity Recommendations Saving money vs. saving energy Energy economics conservation Building energy performance standards Conclusion Literature cited Appendix A: Heating system costs Appendix B: Present worth factors Appendix C: Base case and incremental thermal properties Appendix D: LCC comparison graphs for wall and roof systems Appendix E: Cost penalties for energy conservatism Appendix F: Graphic aid for figuring energy savings thermal improvements
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  • 85
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/29
    In: CRREL Report, 82-29
    Description / Table of Contents: Ice grains in a snow cover with a low temperature gradient assume a well-rounded equilibrium form. However, at temperature gradients of 0.1 to 0.2 C/cm (depending somewhat on temperature and snow density), the rounded grains recrystallize into a faceted kinetic growth form. The large temperature gradient must play a decisive role in moving the vapor fast enough to sustain the rapid growth rate associated with the kinetic growth form. Once the large temperature gradient is removed, the grains recrystallize back to the equilibrium form. the recrystallization occurs in either direction without a change in bulk density. The growth of faceted crystals begins at the warmer base of the snow cover where the excess vapor pressure is largest. A transition between the overlying rounded grains moves upward in time. Faceted crystals also grow just below crusts of reduced permeability, where the increased vapor accumulation can sustain the excess vapor pressure neded for kinetic growth. The heat and vapor flows are described using a model based on thermodynamic equilibrium. The temperature distribution is shown to be quasi-linear at steady state in homogeneous snow. The recrystallization of the snow is modeled using the rounded grains as sources and the faceted grains as sinks. In the future this model should be extended to account for different temperatures among the sources and sinks.
    Type of Medium: Series available for loan
    Pages: 27 Seiten , Illustrationen
    Series Statement: CRREL Report 82-29
    Language: English
    Note: Contents: Abstract Preface Introduction Vapor flow Temperature profile Crystal growth rates Equilibirum versus kinetic growth forms of snow crystals Discussion Summary Literature cited
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  • 86
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/30
    In: CRREL Report, 82-30
    Description / Table of Contents: Equations are developed that can be used to determine the amount of gas present in sea ice from measurements of the bulk ice density, salinity and temperature in the temperature range o f-2 to -30°C. Conversely these relationships can be used to give the density of sea ice as a function of its temperature and salinity, considering both the presence of gas and of solid salts in the ice. Equations are also given that allow the calculation of the gas and brine volumes in the ice at temperatures other than that at which the bulk density was determined.
    Type of Medium: Series available for loan
    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 82-30
    Language: English
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  • 87
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/31
    In: CRREL Report, 82-31
    Description / Table of Contents: Information on sea ice conditions in the Bering Strait and the icefoot formation around Fairway Rock, located in the strait, is presented. Cross-sectional profiles of Fairway Rock and the relief of the icefoot are given along with theoretical analyses of the possible forces active during icefoot formation. It is shown that the ice cover most likely fails in flexure as opposed to crushing or buckling, as the former requires less force. Field observations reveal that the Fairway Rock icefoot is massive, with ridges up to 15 m high, a seaward face only 20 degrees from vertical, and interior ridge slopes averaging 33 degrees. The icefoot is believed to be grounded and its width ranges from less than 10 to over 100 m.
    Type of Medium: Series available for loan
    Pages: 44 Seiten , Illustrationen
    Series Statement: CRREL Report 82-31
    Language: English
    Note: CONTENTS Abstract Preface Introduction Bering Strait Field reconnaissance Estimation of ice forces on Fairway Rock 1. Creep deformation 2. Crushing failure 3. Flexural failure 4. Forces required to form floating or grounded pressure ridges along therock or to pile ice on the beaches 5. Buckling failure Driving forces Angle of internal friction of sea ice Summary Literature cited Appendix A: April 1982 field observations at Fairway Rock
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  • 88
    Call number: ZSP-201-84/9
    In: CRREL Report, 84-9
    Description / Table of Contents: This report presents the results of the first phase of a test program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. In Phase I, 222 constant-strain-rate uni-axial compression tests were performed on ice samples from ten multi-year pressure ridges to examine the magnitude and variation of ice strength within and between pressure ridges. A limited number of constant-strain-rate compression and tension tests, constant-load compression tests, and conventional triaxial tests were also performed on ice samples from a multi-year floe to provide preliminary data for developing ice yield criteria and constitutive laws for multi-year sea ice. Data are presented on the strength, failure strain, and modulus of multi-year sea ice under different loading conditions. The statistical variation of ice strength within and between pressure ridges is examined, as well as the effects of ice temperature, porosity, structure, strain rate and confining pressure on the mechanical properties of multi-year sea ice.
    Type of Medium: Series available for loan
    Pages: v, 107 Seiten , Illustrationen
    Series Statement: CRREL Report 84-9
    Language: English
    Note: CONTENTS Abstract Preface Introduction Field Sampling Site selection and description Ice sampling procedures Shipping and storage of ice samples Testing Techniques Multi-year Pressure Ridge Tests Ice description Sampling scheme and test variables Uniaxial compressive strength Residual compressive strength Failure strains Initial tangent modulus Statistical Variations in Ice Strength Differences in strength above and below level ice Sources of the variation in strength Shape of the strength histograms Multi-year Floe Ice Tests Ice description Uniaxial compressive strength Constant-load compression tests Constant-strain-rate tension tests Triaxial tests Conclusions Literature Cited Appendix A: Structural profile of a multi-year pressure ridge core Appendix B: Ridge uniaxial compression test data Appendix C: Structural profile of the continuous multi-year floe core Appendix D: Multi-year floe test data
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  • 89
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/26
    In: CRREL Report, 84-26
    Description / Table of Contents: Observations of shore ice pile-up and ride-up along the Alaska Beaufort Sea coast in 1983 and 1984 are presented. New information on historical accounts of onshore ice movement, uncovered since publication of Part I in this series, is reported. An account is given of ice overtopping a concrete caisson exploration island in the Canadian Beaufort Sea.
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    Pages: iii, 33 Seiten , Illustrationen
    Series Statement: CRREL Report 84-26
    Language: English
    Note: CONTENTS Abstract Preface Introduction Observations Discussion Literature cited Appendix A: Site location maps
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  • 90
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/18
    In: CRREL Report, 84-18
    Description / Table of Contents: This report investigates the influences of turbulence and water temperature on frazil ice formation. The rate and thequantity of frazil ice formed in a specified volume of supercooled water increase with both increasing turbulence inten-sitv and decreasing water temperature. The influence of turbulence intensity on the rate of frazil ice formation, how-ever. is more pronounced for larger initial supercooling. The turbulence characteristics of a flow affect the rate offrazil ice formation by governing the temperature to which the flow can be supercooled, by influencing heat transferfrom the frazil ice to surrounding water, and by promoting collision nucleation, particle and floc rupture and increasingthe number of nucleation sites. larger frazil ice particles formed in water supercooled to lower temperatures. The par-ticles usually were disks, with diameters several orders greater than their thickness. Particle size generally decreased with increasing turbulence intensity. This report develops an analytical model, in which the rate of frazil ice formation isrelated to temperature rise of a turbulent volume of water from the release of latent heat of fusion of liquid water toice. Experiments conducted in a turbulence jar with a heated, vertically oscillating grid served both to guide and tocalibrate thanalytical'model as well as to afford insights into frazil ice formation. The formation of frazil ice wasstudied for Vemperatures of supercooled water ranging from -0.9° to -0.050°C.
    Type of Medium: Series available for loan
    Pages: vi, 50 Seiten , Illustrationen
    Series Statement: CRREL Report 84-18
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Background Scope of study Literature review Introduction Incipient formation of frazil ice Particle size and evolution of frazil ice Influences of turbulence and water temperature on the rate of frazil ice formation Conclusions Analytical model Introduction Elements of heat transfer Elements of turbulence Experimentation Experimental apparatus Experimental procedure Results Introduction Nucleation of frazil ice Influences of turbulence on frazil ice formation Water temperature Influences of water temperature and turbulence on the concentration of frazil ice Frazil ice particle shape and size Conclusions Literature cited Appendix A: Preliminary frazil ice experiments Flume experiments Couette-flow Appendix B: Listing of computer program for calculation of frazil ice formation Appendix C: Water temperature rise attributable to frazil ice formation as computed usingthe analytical model .
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  • 91
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/15
    In: CRREL Report, 84-15
    Description / Table of Contents: Measurements of meltwater pH from annual layers of South Pole firn and ice samples ranging in age from 40 to 2000 years B.P. show that precipitation at this remote site has a higher natural acidity than that expected from atmospheric equilibrium with CO2. The average pH of deaerated (CO2-free) samples was 5.64 + or - 0.08, while air-equilibrated samples averaged 5.37 + or - 0.008, a pH that is about a factor of two more acidic than the expected background pH of 5.65. The observed 'excess' acidity can be accounted for by natural SO4(2)- and NO(3)- levels in the samples probably originating from non-anthropogenic H2SO4 and HNO3. Because of the presence of these naturally occurring acids in South Pole precipitation, a pH of 5.4 is considered a more representative baseline reference pH for acid precipitation studies.
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    Pages: ii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 84-15
    Language: English
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  • 92
    Call number: ZSP-201-84/16
    In: CRREL Report, 84-16
    Description / Table of Contents: Phase composition curves are presented for a typical saline silt from Lanzhou, P.R.C., and compared to some silts from Alaska. The unfrozen water content of the Chinese silt is much higher than that of the Alaskan silts due to the large amount of soluble salts present in the silts from China, which are not present in silt from interior Alaska. When the salt is removed, the unfrozen water content is then similar for both the Chinese and Alaskan silt. Here we introduce a technique for correcting the unfrozen water content of partially frozen soils due to high salt concentrations. We calculate the equivalent molality of the salts in the unfrozen water at various temperatures from a measurement of the electrical conductivity of the extract from saturated paste.
    Type of Medium: Series available for loan
    Pages: iii, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 84-16
    Language: English
    Note: Contents Abstract Preface Introduction Background Materials Sample preparation Nuclear magnetic resonance Specific surface area Electrical conductivity Results and discussion Summary Literature cited Appendix A: Unfrozen water content vs temperature data for Lanzhou silt
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  • 93
    Call number: ZSP-201-82/37
    In: CRREL Report, 82-37
    Description / Table of Contents: This report presents a Landsat-derived land cover map of the northwest portion of the Arctic National Wildlife Refuge, Alaska. The report is divided into two parts. The first is devoted to the land cover map with detailed descriptions of the mapping methods and legend. The second part is a description of the study area. The classification system used for the maps is an improvement over existing methods of describing tundra vegetation. It is a comprehensive method of nomenclature that consistently applies the same criteria for all vegetation units. It is applicable for large- and small-scale mapping and is suitable for describing vegetation complexes, which are common in the patterned-ground terrain of the Alaskan Arctic. The system is applicable to Landsat-derived land cover classifications. The description of the study area focuses on five primary terrain types: flat thaw-lake plains, hilly coastal plains, foothills, mountainous terrain, and river flood plains. Topography, landforms, soils and vegetation are described for each terrain type. The report also contains area summaries for the Landsat-derived map categories. The area summaries are generated for the five terrain types and for the 89 townships within the study areas. Two land cover maps at 1:250,000 are included.
    Type of Medium: Series available for loan
    Pages: 68 Seiten , Illustrationen, 2 Karten
    Series Statement: CRREL Report 82-37
    Language: English
    Note: CONTENTS Abstract Preface Foreword Introduction A land cover map of the ANWR study area Legend development Mapping method Results Discussion Description of the ANWR study area General description Description of specific terrain types Conclusions Literature cited Appendix A: Descriptions of Landsat land cover categories for ANWR Appendix B: Area summaries Appendix C: Aproximate equivalent units in several systems of land cover, wetland and vegetation classifications used in northern Alaska Appendix D: Soil taxonomy Appendix E: Summary of principal Landsat land cover categories within the terrain types of the ANWR study area
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  • 94
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/18
    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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  • 95
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-91/15
    In: CRREL Report, 91-15
    Description / Table of Contents: An overview is presented of recent activities and results in the use of commercially available short-pulse UHF radar for surveying ice conditions on freshwater bodies. Improvements in radar systems have made it possible to increase ice thickness resolution by as much as one third relative to that in past attempts, and some new signal processing approaches shown here may offer an order of magnitude improvement. Results from airborne surveying are shown in which the varieties of ice character are reflected. Given the lack of ground coupling, one can rely upon a reasonably well-defined wavelet structure for enhanced signal processing and interpretation possibilities. An algorithm is presented that locates returns from interfaces in the presence of noise for a non-minimum delay wavelet. The method performs a simple inversion in the frequency domain, enhanced by a time dependent weight designed to recognize the shape of the wavelet amplitude and phase spectra. Thin ice layers are resolved down to a few centimeters and are distinguished from an ice free condition by means of a matched filter system designed to recognize the interference pattern from parallel interfaces close to one another. The effects and constraints imposed by water layers on wet ice are discussed, as are general attenuation, sloping bottom, and critical angle effects in deeper water. In closing, observations on the problems and prospects of this sort of surveying are offered.
    Type of Medium: Series available for loan
    Pages: v, 31 Seiten , Illustrationen
    Series Statement: CRREL Report 91-15
    Language: English
    Note: Contents Preface Nomenclature Introduction Field surveys Methods and paraphernalia Results Sloping bottom effects and critical angle phenomena Deconvolution and thin layers Well-separated echoes Thin ice layers Thin layers of water Observations Literature cited Abstract
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  • 96
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-92/14
    In: CRREL Report, 92-14
    Description / Table of Contents: Large ice jams on the Salmon River have reached Salmon, Idaho, and resulted in major flood damage during 16 winters since the winter of 1936-37. Two recent ice jams, in February 1982 and January 1984, caused flooding that resulted in damages of $1 million and $1.8 million respectively. A detailed analysis of the winter air temperature records from 1936-37 through 1991-92 revealed a strong relationship between the duration and intensity of severe cold periods, the air temperature record prior to the severe cold periods, and the occurrence of ice jams reaching the city of Salmon that result in flooding. A threshold condition is identified from which the probability of icejams reaching the city can be determined from inspection of forecasted air temperatures. It was found that once an icejam reaches the city, average daily air temperatures of approximately 18 deg F are necessary to keep the jam in place. The effects of discharge on ice thickness, and therefore ice jam length, are shown to be minor and no relation could be found in this study. An ice control structure located upstream of the city of Salmon appears to be helping to alleviate ice-jam flooding.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 92-14
    Language: English
    Note: CONTENTS Preface Conversion factors Introduction Data sources and analysis Air temperature records Air temperature curves Air temperature record analysis Discharge records Results Phase 1 Phase 2 Phase 3 Effects of discharge Salmon River ice control Conclusions Literature cited Abstract
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  • 97
    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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  • 98
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/23
    In: CRREL Report, 80-23
    Description / Table of Contents: The contribution of brine layers to observed reflective anisotropy of sea ice at 100 MHz is quantitatively assessed. The sea ice is considered to be a stratified, inhomogeneous, anisotropic dielectric consisting of pure ice containing ordered arrays of conducting inclusions (brine layers). Below the transition zone, the ice is assumed to have constant azimuthal c-axis orientation within the horizontal plane, so that the orientation of brine layers is uniform. The brine layers are also assumed to become increasingly well-defined with depth, since adjacent brine inclusions tend to fuse together with increasing temperature. A theoretical explanation for observed reflective anisotropy is proposed in terms of an isotropic electric flux penetration into the brine layers. Penetration anisotropy and brine layer geometry are linked to anisotropy in the complex dielectric constant of sea ice. In order to illustrate the above effects we present a numerical method of approximating the reflected power of a plane wave pulse incident on a slab of sea ice. Mixture dielectric constants are calculated for two polarizations of the incident wave: 1) the electric field parallel to the c-axis direction, and 2) the electric field perpendicular to the c-axis direction. These dielectric constants are then used to calculate power reflection coefficients for the two polarizations. Significant bottom reflection (R ~ 0.08) occurs when the polariza-tion is parallel to the c-axis. However, when the polarization is perpendicular to the c-axis, the return may be almost completely extinguished (R 〈 0.001). This extinction is due primarily to absorptive loss associated with the conduct-ing inclusions and secondarily to an impedance match at the ice/water interface that results in transmission of the wave to the water without reflection.
    Type of Medium: Series available for loan
    Pages: vi, 15 Seiten , Illustrationen
    Series Statement: CRREL Report 80-23
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Anisotropy and sea ice macrostructure Anisotropy and sea ice microstructure A theory of anisotropic radar return from sea ice Anisotropic electric flux penetration into brine layers Implications of normal exclusion, tangential penetration, and brine layer geometry for dielectric behavior of sea ice Modeling of electromagnetic reflection from a stratified, anisotropic, inhomogeneous lossy medium Calculation of mixture complex dielectric constants Calculation of interfacial power reflection coefficients Calculation of bulk power reflection coefficients Calculation of attenuated power reflection coefficients Beam spread Results Anisotropic bottom reflections Anisotropic complex dielectric constants Sensitivity of parameters Internal reflection: the bumps Discussion Conclusions Literature cited
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  • 99
    Call number: ZSP-201-80/20
    In: CRREL Report, 80-20
    Description / Table of Contents: Results of impulse radar studies of sea ice give support to the concept of a sea ice model in which the ice bottom is composed of an array of lossy parallel plate waveguides. The fundametal relation between the average bulk brine volume of sea ice and its electrical and strength properties is discussed as is the remote detection of under-ice current alignment. It was found that 1) the average effective bulk dielectric constant is dependent upon the average bulk brine volume of the sea ice; 2) sea ice anisotropy, arising from a bottom structure of crystal platelets with a preferred c-axis horizontal alignment, can be detected by radio echo sounding measurements made not only on the ice surface but also from an airborne platform; 3) the effective coefficient of reflection from the seaiIce bottom decreases with increasing average effective bulk dielectric constant of the ice, decreases with increasing bulk brine volume, and is typically one to two orders of magnitude lower dhan the coefficient of reflection from the ice surface; and 4) the losses In sea ice increase with increasing average bulk brine volume.
    Type of Medium: Series available for loan
    Pages: v, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 80-24
    Language: English
    Note: CONTENTS Abstract Preface Introduction Field program Results and discussion Conclusions Literature cited Appendix: Data analysis procedures
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  • 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-201-80/18
    In: CRREL Report, 80-18
    Description / Table of Contents: The use of ice as a structural material is common practice for certain applications in cold regions. Techniques such as surface flooding or water spraying are used to accelerate ice growth rates, thereby lengthening the winter construction season. This report examines the heat and mass transfer rates from freely falling water drops in cold air. Design equations which predict the amount of supercooling of the drops as a function of outdoor ambient temperature, drop size and distance of fall are given
    Type of Medium: Series available for loan
    Pages: v, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 80-18
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Velocity problem Heat and mass transfer problem - A single drop Heat and mass transfer - A system of drops Literature cited Appendix A: FORTRAN IV program to calculate final drop temperature, air temperatureand humidity
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