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  • Books  (225)
  • English  (219)
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  • 2020-2020
  • 1980-1984  (225)
  • AWI Library  (214)
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  • Books  (225)
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  • 1
    facet.materialart.
    Unknown
    Leningrad : Vsesoj. im. Lenina Naučno-Issl. Geol. Institut im A. P. Karpinskogo
    Call number: AWI K-96-0595(1-16) ; AWI K-96-0522(1-16)
    Pages: 1 Kt. auf 16 Bl. : mehrfarb. ; Gesamtgr. 337 x 206 cm
    Language: Russian , English
    Note: In kyrill. Schr. - Legende russ. u. engl.
    Location: 16
    Location: 16
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  • 2
    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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  • 3
    Series available for loan
    Series available for loan
    Associated volumes
    Call number: ZSP-691-1983
    In: Research in Svalbard
    Type of Medium: Series available for loan
    Pages: 104 S.
    Language: English
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  • 4
    Call number: ZSP-553-5
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 19 S.
    ISBN: 8717028736
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 5
    Language: English
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  • 5
    Call number: ZSP-553-11
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 24 S.
    ISBN: 8717051193
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 11
    Language: English
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  • 6
    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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  • 7
    Call number: ZSP-558-2
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: IX, 505 S. : Ill., graph. Darst.
    Language: English
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  • 8
    Call number: ZSP-558-6 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: V, 106 S. : graph. Darst.
    Language: English
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  • 9
    Monograph available for loan
    Monograph available for loan
    Totowa, NJ : Barnes & Noble
    Call number: AWI P7-86-0931
    Type of Medium: Monograph available for loan
    Pages: VIII, 472 S. : Ill., graph. Darst., Kt.
    ISBN: 0389202983
    Language: English
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  • 10
    Monograph available for loan
    Monograph available for loan
    Copenhagen : Kommissionen for Videnskabelige Undersøgelser i Grønland
    Associated volumes
    Call number: ZSP-553-15
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 72 S. : Ill., zahlr. graph. Darst.
    ISBN: 8717052297
    Series Statement: Meddelelser om Grønland : Bioscience 15
    Language: English
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  • 11
    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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  • 12
    Monograph available for loan
    Monograph available for loan
    Scientific Committee on Antarctic Research
    Call number: AWI P6-09-0028
    Type of Medium: Monograph available for loan
    Pages: 15 S. : graph. Darst.
    Edition: 2nd Ed.
    ISBN: 0642514755
    Language: English
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  • 13
    Call number: ZSP-558-9 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 579 S. : Ill., graph. Darst.
    Language: English
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  • 14
    Call number: ZSP-558-14 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 368 S. : Ill., graph. Darst.
    Language: English
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  • 15
    Monograph available for loan
    Monograph available for loan
    Oslo : Norsk Polarinst.
    Call number: AWI P6-09-0027
    Type of Medium: Monograph available for loan
    Pages: 66 S. : Ill., graph. Darst., Kt.
    Language: English
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  • 16
    Call number: ZSP-558-1
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: V, 104 S. : graph. Darst.
    Language: English
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  • 17
    Call number: ZSP-558-3 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: III, 187 S. : graph. Darst.
    Language: English
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  • 18
    Call number: ZSP-558-7 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 152 S.
    Language: English
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  • 19
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: ZSP-558-8
    In: Middle atmosphere program
    Type of Medium: Monograph available for loan
    Pages: 76 S.
    Language: English
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  • 20
    Call number: ZSP-558-11 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 146 S.
    Language: English
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  • 21
    Call number: ZSP-558-10 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 220 S. : Ill., graph. Darst.
    Language: English
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  • 22
    Call number: ZSP-558-13 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 261 S. : Ill., graph. Darst.
    Language: English
    Location: AWI Reading room
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  • 23
    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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  • 24
    Call number: ZSP-553-10
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 28 S., 11 Beil.
    ISBN: 8717051118
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 10
    Language: English
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  • 25
    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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  • 26
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: ZSP-558-5
    In: Middle atmosphere program
    Type of Medium: Monograph available for loan
    Pages: 188 S. : graph. Darst.
    Language: English
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  • 27
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: ZSP-558-4
    In: Middle atmosphere program
    Type of Medium: Monograph available for loan
    Pages: 200 S. : graph. Darst.
    Language: English
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  • 28
    Call number: AWI P8-89-0293
    In: Heidelberger geographische Arbeiten, Heft 69
    Type of Medium: Monograph available for loan
    Pages: 573 Seiten , Illustrationen , 2 Kartenbeilagen , 24 cm
    ISBN: 3885700697
    Series Statement: Heidelberger geographische Arbeiten 69
    Language: German , English
    Note: Inhaltsverzeichnis: Vorwort. - 1. Zielsetzung und Ablauf der Heidelberg-Ellesmere Island-Expedition 1978 / D. Barsch und L. King. - 2. Das Borup-Fjord-Gebiet in N-Ellesmere Island, N. W. T., Kanada: Entdeckung und Begehung des Gebietes, vorhandene Karten und offizielle Namen / L. King. - 3. Geodätische und photogrammetrische Arbeiten an der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada, im Rahmen der "Heidelberg-Ellesmere-Island-Expedition 1978" / G. Hell. - 4. Geologie, Tektonik und strukturelle Verzeichnung der geomorphologischen Großformen im Expeditionsgebiet Oobloyah Bay - Neil Peninsula, N-Ellesmere Island, N.W.T., Kanada / H. R. Völk. - 5. Witterungsverlauf im Oobloyah-Tal, N-Ellesmere Island, N.W.T., Kanada, vom 24. Juni bis zum 4. August 1978, ein statistischer Wertevergleich / W. A. Flügel. - 6. Das Sommerklima von N-Ellesmere Island, N.W.T., Kanada - eine Beurteilung von Stationswerten unter besonderer Berücksichtigung des Sommers 1978 / L. King. - 7. Zur Geomorphologie des Expeditionsgebietes Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / D. Barsch. - 8. Studien zur gegenwärtigen Geomorphodynamik im Bereich der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / D. Barsch. - 9. Terassen, Flußarbeit und das Modell der exzessiven Talbildungszone im Expeditionsgebiet Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / D. Barsch. - 10. Die Gletscher im Einzugsgebiet des Borup-Fjord, N-Ellesmere Island, N.W.T., Kanada / L. King. - 11. Gletschergeschichtliche Arbeiten im Gebiet zwischen Oobloyah Bay und Esayoo Bay, N-Ellesmere Island, N.W.T., Kanada / L. King. - 12. Glaziologische Beobachtungen an der Stirn des Weber-Gletschers, Borup-Fjord-Gebiet, N-Ellesmere Island, N.W.T., Kanada / D. Barsch, L. King und R. Mäusbacher. - 13. Jungquartäre Delta- und Flußentwicklung im glazialisostatischen Hebungsraum der Oobloyah Bay auf N-Ellesmere Island, N.W.T., Kanada / H. R. Völk. - 14. Hydrologische Studien zum Wasserhaushalt hocharktischer Einzugsgebiete im Bereich des Oobloyah-Tals, N-Ellesmere Island, N.W.T., Kanada / W. A. Flügel. - 15. Hydrochemische Untersuchungen von Niederschlägen, Bodenwasser, Seen und Flüssen im Oobloyah-Tal, N-Ellesmere Island, N.W.T., Kanada / W. A. Flügel. - 16. Geomorphologische Kartierung im Oobloyah-Tal, N-Ellesmere Island, N.W.T., Kanada / R. Mäusbacher. - 17. Gesteinstemperaturen und Insolationsverwitterung im hocharktischen Bereich, Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / H. Eichler. - 18. Kleinformen der hocharktischen Verwitterung im Bereich der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada - Formengenese und Prozesse / H. Eichler. - 19. Oberflächennahe Bodentemperaturmessungen in Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / R. Mäusbacher. - 20. Recent iron ore deposition and heavy metal accumulation in Access Lake, Oobloyah Valley, northern Ellesmere Island, N.W.T., Canada / D. Barsch und G. Müller. - 21. Die Meereisentwicklung im Inneren des östlichen kanadischen Arktisarchipels und ihre Bedeutung für die Arbeiten der Heidelberg-Ellesmere Island-Expedition an der Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada / L. King. - 22. Gefäßpflanzen von Oobloyah Bay, N-Ellesmere Island, N.W.T., Kanada; eine kommentierte Pflanzenliste und phänologische Beobachtungen / R. Mäusbacher. - 23. The mosses of peat mounds, Oobloyah Bay, northern Ellesmere Island, N.W.T., Canada / L. King. - 24. Beobachtungen zu organischen Kleinformen im Oobloyah Tal, N-Ellesmere Island, N.W.T., Kanada / W. A. Flügel und R. Mäusbacher. - 25. Faunal notes of the Heidelberg Ellesmere Island Expedition 1978, Oobloyah Bay, northern Ellesmere Island, N.W.T., Canada / D. Barsch und L. King. - Anlage 1: Orthophotokarte 〈1 : 25 000〉 Oobloyah Bay. - Anlage 2: Geomorphologische Karte 〈1 : 25 000〉 Oobloyah Bay. - Anlage 3: Radiocarbondaten. - Anlage 4: Planung, Einkauf und Lagerung der Nahrungsmittel. , Beiträge teilweise in deutsch, teilweise in englisch
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  • 29
    Call number: AWI A7-92-0314
    Type of Medium: Monograph available for loan
    Pages: IX, 560 S. , graph. Darst., Kt.
    Edition: 1st publ.
    ISBN: 0521252229
    Language: English
    Note: CONTENTS: Foreword. - Introduction. - SESSION I - ATMOSPHERIC GENERAL CIRCULATION MODELS AND CLIMATE SIMULATIONS. - Large-scale climate modelling and small-scale physical processes / J. Smagorinsky. - Simulation of climate by general circulation models with hydrologic cycles / S. Manabe. - Current parameterizations of land-surface processes in atmospheric general circulation models / D. J. Carson. - The sensitivity of numerically simulated climates to land surface conditions / Y. Mintz. - SESSION II - THE MICROPHYSICAL PROCESSES OF MOMENTUM, HEAT AND WATER TRANSFERS ACROSS AND NEAR THE SURFACE OF THE LAND. - Vertical flux of moisture and heat at a bare soil surface / W. H. Brutsaert. - The vertical fluxes of heat and moisture at a vegetated land surface / L. J. Fritschen. - Vertical flux of heat and moisture in snow and ice / M. Kuhn. - SESSION III - MESOSCALE PARAMETERIZATIONS OF THE TRANSFER PROCESSES. - Parameterization of hydrologic processes / J. C. I. Dooge. - Dynamic hydro-thermal balances at macroscale / P. S. Eagleson. - SESSION IV - LAND SURFACE GLOBAL DATA SETS. - Use of regional and global soils data for climate modelling/ M. J. Gardiner. - Land surface processes: Vegetation / A. Perrier. - Data on snow cover and glaciers for the global climatic models / V. M. Kotliakov and A. N. Krenke. - The shortwave albedo and the surface emissivity / K. Ya. Kondratyev, V. I. Korzov, V. V. Mukhenberg and L. N. Dyachenko. - Water balance / A. Baumgartner. - SESSION V - ACQUISITION OF LAND SURFACE DATA. - Possibilities for remote sensing of surface characteristics / K. I. Itten.
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  • 30
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-5
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 39 S. : graph. Darst.
    Series Statement: Berichte zur Polarforschung 5
    Language: English
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  • 31
    Call number: ZSP-168-9
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 36 S. : Kt.
    Series Statement: Berichte zur Polarforschung 9
    Language: English
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  • 32
    Call number: AWI G9-84-0295 ; AWI G9-84-0295(2. Ex.)
    Type of Medium: Monograph available for loan
    Pages: XXII, 697 Seiten , Illustrationen , 25,5 cm
    ISBN: 0858471175
    Language: English
    Note: CONTENTS: Preface. - Acknowledgements. - Sir Douglas Mawson. - Symposium Opening Ceremony. - The Mawson Lecture. - Symposium Topics. - 1. Precambrian East Antarctic Craton. - 2. East Antarctica-West Antarctica Boundary and the Ross Orogen, including Northern Victoria Land. - 3. Beacon Supergroup and Associated Igneous Rocks. - 4. West Antarctica. - 5. Scotia Arc and Antarctic Peninsula. - 6. Marine Geology. - 7. Antarctic Resources. - 8. Glacial Geology and Geomorphology. - 9. Crusta! Structure of Antarctica. - 10. Cenozoic Tectonics and Climatic Record-Onshore and Offshore Evidence. - 11. Antarctica in Gondwanaland. - 12. Plate Tectonics. - 13. Antarctic Meteorites. - 14. Subantarctic Islands. - 15. Cenozoic Igneous Activity. - I. Precambrian East Antarctic Craton. - The Precambrian Geological Evolution of the East Antarctic Metamorphic Shield: a Review / P.R. James and R.J. Tingey. - Geological History of the Archaean Napier Complex of Enderby Land / L.P. Black and P.R. James. - The Geology of the Fyfe Hills-Khmara Bay Region, Enderby Land / M.A. Sandiford and C.J.L. Wilson. - The Napier and Rayner Complexes of Enderby Land, Antarctica: Contrasting Styles of Metamorphism and Tectonism / D.J. Ellis. - Regional Geobarometry-Geothermometry and Metamorphic Evolution of Enderby Land, Antarctica / S.L. Harley. - Sm-Nd Isotopic Systematics of Enderby Land Granulites. Evidence for the Redistribution of Sm and Nd During Metamorphism (Abstract) / M. T. McCulloch and L.P. Black. - Geology and Petrology of Prince Olav Coast, East Antarctica / Y. Hiroi, K. Shiraishi, Y. Nakai, T. Kano and S. Yoshikura. - Tectonic Situation of Lützow-Holm Bay in East Antarctica and its significance in Gondwanaland / M. Yoshida and K. Kizaki. - Sapphirine-Garnet and Associated Parageneses in Antarctica / E.S. Grew. - A Review of the Tectonic and Metamorphic History of the Lützow-Holm Bay Region, East Antarctica / M. Yoshida, M. Suzuki, H. Shirahata, H. Kojima and K. Kizaki. - Spinels in Calc-silicate Rocks from the coast of Lützow-Holm Bay and surrounding areas (Abstract) / H. Matsueda, Y. Matsumoto and Y. Motoyoshi. - Petrochemical Study of Metamorphic Rocks in the Lützow-Holm Bay Area, East Antarctica (Abstract) / S. Kanisawa and K. Yanai. - Geology and Petrology of the Yamato Mountains / K. Shiraishi, M. Asami and Y. Ohta. - Geology and Petrology of the Belgica Mountains (Abstract) / H. Kojima, K. Yanai and T. Nishida. - Lead Isotopic Composition in Metamorphic Rocks from Skarvsnes, East Antarctica / H. Shirahata. - Sr-Isotopic Studies of some Intrusive Rocks in the Ahlmann Ridge and Annandagstoppane, Western Queen Maud Land, Antarctica / J.M. Barton Jr. and Y.E. Copperthwaite. - Preliminary Report on the Geochemistry and Petrology of some Igneous Rocks in the Ahlmanryggen and Giaeverryggen, Western Dronning Maud Land, Antarctica (Abstract) / J.R. Krynauw. - Petrology and Zircon Geochronology of Herring Island and Commonwealth Bay and Evidence for Gondwana Reconstruction / R.L. Oliver, J.A. Cooper and A .F. Truelove. - Manganese-Rich Chemical Sediments from Wilkes Land, Antarctica / l.R. Plimer and J.R Lovering. - A Reassessment of the Age of the Windmill Metamorphics, Casey Area / l.S. Williams, W. Compston, K.D. Collerson, P.A. Arriens and J.R Lovering. - Lithological and Sr-Nd Isotopic Relationships in the Vestfold Block: Implications for Archaean and Proterozoic Crustal Evolution in the East Antarctic / K.D. Collerson, E. Reid, D. Millar and M. T. McCulloch. - Structure, Fabric Development and Metamorphism in Archaean Gneisses of the Vestfold Hills, East Antarctica / A.J. Parker, P.R. James, R.L. Oliver and V. Mielnik. - 2. East Antarctica-West Antarctica Boundary and the Ross Orogen, including Northern Victoria Land. - A Review of the Ross Fold Belt of the Transantarctic Mountains as a Boundary Structure between East Antarctica and West Antarctica (Abstract) / G.E. Grikurov. - The East Antarctica-West Antarctica Boundary between the Ice Shelves: a Review / C. Craddock. - The Pre-Beacon Geology of Northern Victoria Land: a Review / J.D. Bradshaw and M. G. Laird. - The Sedimentology of the Robertson Bay Group, Northern Victoria Land / B. D. Field and R.H. Findlay. - Tectonic Significance of Deformations affecting the Robertson Bay Group and Associated Rocks, Northern Victoria Land, Antarctica / R.H. Findlay and B.D. Field. - Geology of the Daniels Range, Northern Victoria Land, Antarctica: a Preliminary Report / C. C. Plummer, R.S. Babcock, J. W. Sheraton, C.J.D. Adams and R.L. Oliver. - Geology of the Daniels Range Intrusive Complex Northern Victoria Land, Antarctica (Abstract) / R.S. Babcock, C.C. Plummer, J.S. Sheraton, C.J. Adams, R.L. Oliver. - Trends in Regional Metamorphism and Deformation in Northern Victoria Land, Antarctica / G. Kleinschmidt. - New Data on the Lower Palaeozoic Bowers Supergroup, Northern Victoria Land / M. G. Laird and J.D. Bradshaw. - Geosynclinal Sedimentation and Ross Orogeny in Northern Victoria Land (Abstract) / R. Tessensohn. - Age and Correlation of the Cambrian-Ordovician Bowers Supergroup, Northern Victoria Land / R.A. Cooper, J.B. Jago, A.J. Rowell and P. Braddock. - Post-Mindyallan Late Cambrian Trilobite Faunas from Antarctica (Abstract) / J.H. Shergold. - Post-Ross Orogeny Cratonisation of Northern Victoria Land / G. W. Grindley and P.J. Oliver. - Geochemistry, Petrography and Geochronology of the Cambro-Ordovician and Devonian-Carboniferous Granitoids of Northern Victoria Land, Antarctica / U. Vetter, N. W. Roland, H. Kreuzer, A. Hohndorf, H. Lenz and C. Besang. - Chemistry of Palaeozoic Granites of Northern Victoria Land (Abstract) / D. Wyborn. - Chemical Control on Stratigraphic Relations in Northern Victoria Land and Some Possible Relations with SE Australia (Abstract) / D. Wyborn. - Results of Palaeomagnetic Investigations in Northern Victoria Land, Antarctica / G. Delisle. - The Geology of Terra Nova Bay / D.N.B. Skinner. - The Petrology and Origin of Orbicular Tonalite from Western Taylor Valley, Southern Victoria Land, Antarctica / P.S. Dahl and D.R Palmer. - The Granites and Two Orogenies of Southern Victoria Land / D.N.B. Skinner. - A Re-interpretation of the Basement Granites, McMurdo Sound, Antarctica (Abstract) / R.H. Findlay. - Petrology and Geochemistry of the Queen Maud Batholith, Central Transantarctic Mountains, with Implications for the Ross Orogeny / S.G. Borg. - Type Locality of the Ackerman Formation, La Gorce Mountains, Antarctica / E. Stump. - The Structural Development of Selected Areas in the Pensacola Mountains (Abstract) / A. Frischbutter, W. Weber, J. Hojmann and H.J. Paech. - A Gcochronological Investigation of the Shackleton Range / R.J. Pankhurst, P.D. Marsh, P.D. Clarkson. - Tectonics and Relationships between Structural Stages in the Precambrian of the Shackleton Range, Western Margin of the East Antarctic Craton / J. Hojmann and H.J. Paech. - The Late Precambrian and Early Palaeozoic History of The Shackleton Range, Coats Land / P.D. Marsh. - Structure and Outline of Geologic History of the Southern Weddell Sea Basin / E.N. Kamenev and V.L. Ivanov. - Magnetic Studies of Upper Crusta! Structure in West Antarctica and the Boundary with East Antarctica / E.J. Jankowski, D.J. Drewry and J.C. Behrendt. - Crust and Upper Mantle Study of McMurdo Sound / L.D. McGinnis, D.D. Wilson, W.J. Burdelik and T.H. Larson. - 3. Beacon Supergroup and Associated Igneous Rocks. - The Beacon Supergroup of Northern Victoria Land, Antarctica / B.C. Walker. - Trace Fossils of the Permian-Triassic Takrouna Formation, Northern Victoria Land, Antarctica / J.M. Zawiskie, J. W. Collinson and W.R. Hammer. - Permian-Triassic Sedimentary Sequence in Northern Victoria Land, Antarctica / J. W. Collinson and N.R. Kemp. - Late Palaeozoic Glacigene Strata in Northern Victoria Land (Abstract) / B. C. McKelvey and B.C. Walker. - Deposition of the Weller Coal M
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  • 33
    Call number: AWI E3-92-0497
    Type of Medium: Monograph available for loan
    Pages: XV, VII, 333 S. , Ill., graph. Darst., Kt.
    Edition: Repr. [of the ed.] London, 1901
    ISBN: 0905838416
    Language: English
    Note: Contents: Preface. - New introduction. - I. Introductory. - II. From Hobart to South Victoria Land. - III. Life in South Victoria Land. - IV. Cut off from all the world. - V. The winter in Victoria Land. - VI. Sledge Journey in winter. - VII. Among the penguins. - VIII. Return of the Southern Cross. - IX. Farthest south. - X. Towards civilization. - Appendix I. Appendix II.
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  • 34
    Call number: ZSP-168-15
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 59 S. : Kt.
    Series Statement: Berichte zur Polarforschung 15
    Language: English
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  • 35
    Call number: AWI G3-99-0351
    Type of Medium: Monograph available for loan
    Pages: XIV, 489 Seiten , Illustrationen
    ISBN: 0-12-355860-3
    Series Statement: Burg Wartenstein symposium 81
    Language: English
    Note: Contents: Contributors. - Preface. - Acknowledgements. - Paleogeography. - Ancient vegetation - the fossil record. - The Steppe-Tundra concept and its application in Beringia. - Paleoclimate. - Primary production and the Pleistocene ungulates - the productivity paradox. - Man in ancient Beringia. - Paleoecology of Beringia - a synthesis. - References. - General index. - Index to faunal and floral taxa.
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  • 36
    Call number: AWI G2-93-0199
    Description / Table of Contents: The essays in this volume cover: the materials which may be recognizably preserved for varying periods of time or whose presence in certain deposits may be inferred from characteristic products of their diagenesis; how and to what extent these materials or diagenetic products may be used to reconstruct the flora of a lake basin, its catchment area or regions further away; the reliability or fallibility of chemical, physical or biological methods of analysis, where materials come from, to what extent they are homogeneously or heterogeneously deposited after arrival in a lake basin and whether the latter situation arises ab initio or is the result of later perturbations; the various direct or indirect methods of dating deposits, even on a global scale, and stress, strain and stability in lacustrine environments. Some chapters are devoted to reconstruction of the past during certain periods of time in given localities but in all the chapters the matters considered and views expressed are related to previous work done in various parts of the world. The book will be of value to all concerned with the past and present environment, botany, ecology, hydrology, and geography. The reference sections provide a comprehensive bibliography of palaeolimnological and related literature.
    Type of Medium: Monograph available for loan
    Pages: XVIII, 411 S. : Ill., graph. Darst., Kt.
    ISBN: 0816613648
    Language: English
    Note: Table of Contents: Winifred Tutin - a personal note / John W. G. Lund. - 1 Chemical stratigraphy of lake sediments as a record of environmental change / D. R. Engstrom and H. E. Wright. - 2 Organic geochemistry of lacustrine sediments: triterpenoids of higher-plant origin reflecting post-glacial vegetational succession / P. A. Cranwell. - 3 Empirical testing of 210Pb-dating models for lake sediments / F. Oldfield. - 4 The transfer of natural and artificial radionuclides to Brotherswater from its catchment / J. D. Eakins ... - 5 A global review of palaeomagnetic results from wet lake sediments / R. Thompson. - 6 Stratigraphic changes in algal remains (diatoms and chrysophytes) in the recent sediments of Blelham Tarn, English Lake District / Elizabeth Y. Haworth. - 7 The preservation of algal remains in recent lake sediments / David Livingstone. - 8 Stress, strain, and stability of lacustrine ecosystems / Edward S. Deevey, Jr. - 9 Pollen recruitment to the sediments of an enclosed lake in Shropshire, England / Anne P. Bonny and Peter V. Allen. - 10 Sediment focusing and pollen influx / Margaret Bryan Davis ... - 11 Stages in soil development reconstructed by evidence from hypha fragments, pollen and humus contents in soil profiles / Svend T. Andersen. - 12 Pollen diagrams from Cross Fell and their implication for former tree-lines / Judith Turner. - 13 The Holocene vegetation of the Burren, western Ireland / W. A. Watts. - 14 Late-Quaternary pollen and plant macrofossil stratigraphy at Lochan an Druim, north-west Scotland / Hilary H. Birks. - Index.
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  • 37
    Monograph available for loan
    Monograph available for loan
    New Delhi [u.a.] : Amerind Publ.
    Call number: AWI G10-98-0232
    Type of Medium: Monograph available for loan
    Pages: VII, 242 S.
    Series Statement: Arctic and Antarctic Scientific Research Institute 304 TT 75-52080
    Uniform Title: Problemy fiziko-geografičeskogo rajonirovanija poljarnych stran
    Language: English
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  • 38
    Call number: AWI Bio-98-0228
    In: Komarov lectures
    Description / Table of Contents: Contents: Translator's foreword. - Preface. - Acknowledgements. - 1 Division of the Arctic into geobotanical areas. - 2 The geobotanical regions of the Arctic: the tundra region. - 3 The geobotanical regions of the Arctic: the region of the arctic polar deserts. - 4 Division of the Antarctic into geobotanical areas. - 5 Conclusions. - References. - List of Latin plant names. - Index
    Type of Medium: Monograph available for loan
    Pages: 247 S. : graph. Darst.
    ISBN: 0521231191
    Series Statement: Komarov lectures 29
    Uniform Title: Geobotaničeskoe rajonirovanie Arktiki i Antarktiki
    Language: English
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  • 39
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-16
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 53 S. : graph. Darst., Kt.
    Series Statement: Berichte zur Polarforschung 16
    Language: English
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  • 40
    Call number: AWI Bio-99-0205-2 ; AWI Bio-99-0205-1
    In: Atlas of seeds and small fruits of Northwest-European plant species 〈Sweden, Norway, Denmark, East Fennoscandia and Iceland〉
    Type of Medium: Monograph available for loan
    Pages: 259 S. , Ill.
    ISBN: 9172604980
    Language: English
    Note: Contents: Introduction. - Information concerning the Taxonomic Arrangement and the Material Examined. - Notes on Keys and Descriptions. - Glossary. - List of Abbreviations. - Salicaceae. - Myricaceae. - Corylaceae. - Betulaceae. - Fagaceae. - Ulmaceae. - Cannabaceae. - Urticaceae. - Santalaceae. - Loranthaceae. - Polygonaceae. - Chenopodioneae. - Amaranthaceae. - Portulacaceae. - Caryophyllaceace. - Nymphaeaceae. - Ceratophyllaceae. - Ranunculaceae. - Paeoniaceae. - Berberidaceae. - Aristolochiaceae. - Papaveraceae. - Cruciferae. - References. - Index of Taxa. - Plates. - Simple Symmetrical Plane Shapes.
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  • 41
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-11
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 40 S. : Kt.
    Series Statement: Berichte zur Polarforschung 11
    Language: English
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  • 42
    Call number: MOP Per 581(1/7) ; ZSP-319/A-7
    In: Geodätische und geophysikalische Veröffentlichungen : Reihe 1, Nr. 7
    Type of Medium: Monograph available for loan
    Pages: 196 Seiten , Illustrationen
    Series Statement: Geodätische und geophysikalische Veröffentlichungen : Reihe 1 7
    Language: German , English
    Note: Inhaltsverzeichnis = Contents: Foreword. - Summaries. - Zwei Jahrzehnte Forschungsarbeiten der Geowissenschaftler der DDR auf Expeditionen = Two decades of expeditionary research work of geoscientists of the GDR / H. PESCHEL. - Methodische Aspekte der geologischen Erkundung des Subglazials am Beispiel des Hays-Gletschers = Methodological aspects of the geological investigation of the subglacial demonstrated by example of the Hays Glacier / H. DIETRICH. - Geodätisch-glaziologische Arbeiten in der Ostantarktis (1962 -1978) = Geodetic-glaciological activities carried out in East Antarctica between 1962 and 1978 / S. MEIER. - Geodätisch-glaziologische Wiederholungsmessungen am Hays-Gletscher 1977/78 = Geodetic-glaciological repetition measurements at the Hays Glacier /R. HOYER. - Gravimetrische Messungen und Erdgezeitenuntersuchungen in Antarktika = Gravimetric measurements and studies of earth tides in Antarctica / Cl. ELSTNER ; M. M. SCHNEIDER; H. WIRTH. - Vertikale Erdkrustenbewegungen und Potentialänderungen bei wechselnden Eis-Auflasten = Vertical earth crustal movements and variations in gravity potential related to changing ice load / R. DIETRICH. - Geodätisch-astronomische Arbeiten während der 8. und 17. SAE = Geodetic-astronomical activities during the 8th and 17th SAE / J. LIEBERT. - Zur Geologie der Gebirge in der Umrandung des Filchner-Eisschelfes = Geology of the mountain ranges surrounding the Filchner shelf ice / H. J. PAECH; J. HOFMANN; A. FRISCHBUTTER. - Tektonische Untersuchungen in der Gebirgsumrandung des Lambert-Gletschers, Ostantarktis = Tectonic investigations in the mountain ranges surrounding the Lambert Glacier, East Antarctica / J. HOFMANN. - Meteorologische Prozesse in der antarktischen Atmosphäre = Meteorological processes in the antarctic atmosphere / A. HELBIG. - Wettersatellitenbeobachtungen im Südpolargebiet = Weather satellite Observations in the south-polar region / H. GERNANDT. - Untersuchungen zur terrestrischen Refraktion und der thermischen Struktur der eisnahen Luftschicht in der Kilstenzone des Enderby-Landes/Antarktis (Kurzfassung) = Investigations of the terrestrial refraction and thermal structure of the near-ice air layer in the coastal zone of Enderby Land, Antarctica / G. DITTRICH; A. HELBIG. - Ergebnisse ionosphärischer Beobachtungen in hohen südlichen Breiten als Beitrag zur globalen Untersuchung der Hochatmosphäre = Results of ionospheric observations in high southern latitudes as a contribution to global investigations of the upper atmosphere / H. GERNANDT. - Forschungen mit Umweltnukliden in der Antarktis = Research with environmental nuclides in Antarctica / K. FRÖHLICH; H. SCHÜTZE. - Bioklimatisch-physiologische Untersuchungen einer DDR-Gruppe während der 20. Sowjetischen Antarktisexpedition = Bioklimatic-physiological investigations of a group of GDR-participants during the 20th Soviet Antarctic expedition / L. KLINKER; W. SPANGENBERG. - Untersuchungen zur biologischen Langzeitrhytmik unter besonderer Berücksichtigung cirkaseptaner Variationen = Investigations of the biological long-term rhythmic with particular emphasis on 7-day variations / M. TÖPFER. - Körperliche Belastung und Sauerstoffverbrauch - Untersuchungsergebnisse von der 20. Sowjetischen Antarktisexpedition = Physical stress and Oxygen consumption - results of investigations during the 20th SAE / G. SCHRADER; L. KLINKER. - Umweltuntersuchungen während der 20. Sowjetischen Antarktisexpedition zum Vorkommen von resistenten Clostridienstämmen im Boden und zur Verbreitung von DDT in der Fauna der Antarktis = Environmental investigations during the 20th Soviet Antarctic Expedition (SAE) relating to occurence in the soil of resistent phylla of clostridia and to the distribution of DDT in the antarctic fauna / G. SCHRADER. - Ergebnisse und Anwendungsmöglichkeiten der geoelektromagnetischen und technischen Untersuchungen auf Spitzbergen = Results and possibilities for application of geo-electromagnetic and technical investigations at Spitsbergen / V. AUSTER; K. LENGNING. - Tritium- und 14C-Untersuchungen im Rahmen der Antarktisforschung der DDR = Tritium and 14C investigations in the framewerk of GDR research activities in Antarctica /D. HEBERT; K. FRÖHLICH; M. M. SCHNEIDER. - Autorenverzeichnis. , Zusammenfassungen in englischer Sprache
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  • 43
    Series available for loan
    Series available for loan
    Berlin : Nationalkomitee für Geodäsie und Geophysik der DDR bei der Deutschen Akademie der Wissenschaften
    Associated volumes
    Call number: AWI P6-12-0004 ; ZSP-319/A-2(Sonderheft)
    In: Geodätische und geophysikalische Veröffentlichungen : Reihe 1, Sonderheft 1984
    Type of Medium: Series available for loan
    Pages: 64 Seiten , Illustrationen
    ISSN: 0533-7577
    Series Statement: Geodätische und geophysikalische Veröffentlichungen : Reihe 1 Sonderheft 1984
    Language: English , German , Russian
    Note: Contents = Soderžanie = Inhaltsverzeichnis: Foreword = Predislovie = Vorwort. - Meteorological research projects in the Antarctic from 1959 to 1984 = Meteorlogičeskie issledovanija v Antarktike v 1959 - 1984 gg. = Meteorologische Forschungsvorhaben in der Antarktis 1959 - 1984 / G. SKEIB. - Satellite observations over Antarctica = Nabljudenie Antarktiki s iskusstvennych sputnikov Zemli = Satellitenbeobachtungen über Antarktika / H. GERNANDT. - Geophysical investigations carried out by the GDR in Antarctica = Geofizičeskie issledovanija GDR v Antarktide = Geophysikalische Untersuchungen der DDR in Antarktika / M. M. SCHNEIDER, Cl. ELSTNER, V. AUSTER, U. SCHÄFER. - Studies of the upper layers of the Polar atmosphere = Issledovanie poljarnoj verchnej atmosfery = Beiträge zur Untersuchung der polaren Hochatmosphäre / H. GERNANDT, B. SCHÄNING. - Geological activities carried out by the GDR in Antarctica = Geologičeskie raboty GDR v Antarktide = Geologische Aktivitäten der DDR in Antarktika / J. HOFMANN, H.-J. PAECH. - Isotope research in Antarctica = Izotopnye issledovanija v Antarktide = Isotopenforschung in der Antarktis / H. SCHÜTZE, K. FRÖHLICH. - Geodetic-glaciological studies in the East Antarctic 1962-1978 = Geodezičesko-glaciologičeskie raboti v vostočnoj Antarktide v 1962-1978 gg. = Geodätisch-glaziologische Arbeiten in der Ostantarktis (1962-1978) / S. MEIER, R. DIETRICH. - Biological activities within the framework of the Soviet Antarctic Expeditions (25th-29th, 1979-1984) = Biologičeskie raboty vo vremja 25-oj - 29-oj SAĖ (1979-1984) = Biologische Arbeiten im Rahmen der 25.-29. SAE (1979-1984) / K. ODENING. - Abstract on medical research activities by the GDR in the Antarctic = Kratkij otčët medicinskich issledovanij v Antarktide = Kurzer Abriß zur medizinischen Antarktisforschung der DDR / G. SCHRADER, L. KLINKER. - 25 years Antarctic expeditions and their preparation = 25 let antarktičeskim ėkspedicijam i ich podgotovka = 25 Jahre Antarktisexpedition und ihre Vorbereitung / B. TRIPPHAHN. - Bibliography = Bibliografija = Bibliographie. , Text in deutscher, russischer und englischer Sprache , In kyrillischer Schrift
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  • 44
    Call number: SR 99.0054(60) ; ZSP-320(B,60)
    In: German Antarctic North Victoria Land Expedition 1982/83
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 399 S.
    Series Statement: Geologisches Jahrbuch; Reihe B 60
    Language: English
    Location: Lower compact magazine
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  • 45
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: M 92.0939 ; M 92.1193 ; AWI G1-92-0382
    Type of Medium: Monograph available for loan
    Pages: XIV, 472 S.
    ISBN: 3540513418
    Classification:
    Petrology, Petrography
    Language: English
    Location: Upper compact magazine
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  • 46
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier
    Associated volumes
    Call number: M 92.1172 ; PIK N 531-93-0148
    In: Ecosystems of the world
    Type of Medium: Monograph available for loan
    Pages: XIII, 643 S. : Abb.
    ISBN: 0444420592
    Series Statement: Ecosystems of the world
    Language: English
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  • 47
    Call number: 92.1182 ; AWI A3-88-0317
    Type of Medium: Monograph available for loan
    Pages: VII, 205 S. : graph. Darst.
    ISBN: 9027716765
    Classification:
    Historical Geology
    Language: English
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  • 48
    Series available for loan
    Series available for loan
    Hannover : Schweizerbart
    Associated volumes
    Call number: SR 99.0054(41) ; ZSP-320(B,41)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 276 S. + 1 Kt.-Beil.
    Series Statement: Geologisches Jahrbuch : Reihe B 41
    Language: English
    Location: Lower compact magazine
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  • 49
    Monograph available for loan
    Monograph available for loan
    Dordrecht [u.a.] : Kluwer
    Call number: M 99.0101 ; AWI G7-86-0694
    Description / Table of Contents: This book is designed as a comprehensive mathematical introduction to the science of the behaviour of glaciers and ice sheets in their geophysical environment. Its main objective is to provide a better fundamental understanding of the problems of ice mechanics and fluid mechanics of large ice masses, and to connect and unify some of the approaches that have been developed in different disciplines concerned with glaciers and ice sheets. The first two chapters provide the physical background by treating ice within the framework of continuum physics and material science. The central part of the book deals with the conceptualization and mathematical formulation of glacier and ice sheet flow. Considerations concerning fluid mechanics and thermodynamics are given equal attention. The aim is to deduce common glaciological formulae from first principles and to state clearly the assumptions which lie behind the approximations. This allows the extension of the results - known to glaciologists in plane flow only - to three dimensions, thus paving the way for further research.
    Type of Medium: Monograph available for loan
    Pages: xxxvii, 510 S.
    ISBN: 9027714738
    Series Statement: Mathematical approaches to geophysics
    Classification:
    Meteorology and Climatology
    Language: English
    Note: TABLE OF CONTENTS: ACKNOWLEDGEMENTS. - PREFACE. - INTRODUCTION. - SYMBOLS AND NOTATION. - PART I. FUNDAMENTAL PHYSICS AND MATERIALS TECHNOLOGY OF ICE. - 1.General Concepts. - 1. Introduction. - 2. Equations of Balance. - 3. Material Response. - (a) General constitutive relations, simple materials. - (b) The rule of material objectivity. - (c) Material symmetry. - (d) Constitutive response for isotropie bodies. - (e) Materials with bounded memory-some constitutive representations. - (f) Incompressibility. - (g) Some representations of isotropic functions. - 4. The Entropy Principle. - (a) The viscous heat-conducting compressible fluid. - (b) The viscous heat-conducting incompressible fluid. - (c) Pressure and extra stress as independent variables. - (d) Thermoelastic solid. - (e) Final remarks. - 5. Phase Changes. - (a) Phase changes for a viscous compressible heat-conducting fluid. - (b) Phase changes for a viscous incompressible heat-conducting fluid. - References. - 2. A Brief Summary of Constitutive Relations for Ice. - 1. Preliminary Remarks. - 2. The Mechanical Properties of Hexagonal Ice. - (a) The crystal structure of ordinary ice. - (b) The elastic behavior of hexagonal ice. - (c) The inelastic behavior of single-crystal ice. - 3. The Mechanical Properties of Polycrystalline Ice. - (a) The elastic behavior of polycrystalline ice. - (b) Linear viscoelastic properties of polycrystalline ice. - (α) General theory. - (β) Experimental results. - (c) Non-linear viscous deformation and creep. - (α) Results of creep tests. - (β) Generalization to a three-dimensional flow law. - (γ) Other flow laws. - 4. The Mechanical Properties of Sea Ice. - (a) The phase diagram of standard sea ice and its brine conten. - (b) Elastic properties. - (c) Other material properties. - References. - PART II. THE DEFORMATION OF AN ICE MASS UNDER ITS OWN WEIGHT. - 3. A Mathematical Ice-flow Model and its Application to Parallel-sided Ice Slabs. - 1. Motivation and Physical Description. - 2. The Basic Model - Its Field Equations and Boundary Conditions. - (a) The field equations. - (α) Cold ice region. - (β) Temperate ice region. - (b) Boundary conditions. - (α) At the free surface. - (β) Along the ice-water interface. - (γ) Along the bedrock surface. - (δ) Along the melting surface. - 3. The Response of a Parallel-sided Ice Slab to Steady Conditions. - (a) Dimensionless forms of the field equations. - (b) Parallel-sided ice slab, a first approximation to glacier and ice-shelf flow dynamics. - (α) Velocity and temperature fields x-independent. - (β) Extending and compressing flow. - (γ) Floating ice shelves 4. Concluding Remark. - References. - 4. Thermo-mechanical Response of Nearly Parallel-sided Ice Slabs Sliding over their Bed. - 1. Motivation. - 2. The Basic Boundary-value Problem and its Reduction to Linear Form. - 3. The Solution of the Boundary-value Problems. - (a) Zeroth-order problem. - (b) First-order problem. - (α) Harmonic perturbation from uniform flow for a zero accumulation rate. - (β) Analytic solution for a Newtonian fluid. - (γ) Numerical solution for non-linear rheology. - (δ) Effect of a steady accumulation rate. - (ε) A historical note on a previous approach. - (η) The first-order temperature problem. - (c) Numerical results for steady state. - (α) Transfer of bottom protuberances to the surface. - (β) Basal stresses. - (γ) Surface velocities. - (δ) Effect of a steady accumulation rate. - 4. Remarks on Response to a Time-dependent Accumulation Rate. - 5. Surface-wave Stability Analysis. - (a) The eigenvalue problem. - (b) Discussion of results. - 6. Final Remarks. - References. - 5. The Application of the Shallow-ice Approximation. - 1. Background and Previous Work. - 2. Derivation of the Basal Shear-stress Formula by Integrating the Momentum Equations over Ice Thickness. - (a) Derivation. - (b) The use of the basal shear-stress formula in applied glaciology. - 3. Solution of the Ice-flow Problem using the Shallow-ice Approximation. - (a) Governing equations. - (b) Shallow-ice approximation. - (c) Construction of the perturbation solution. - (d) Results. - (e) Temperature field. - 4. Theoretical Steady-state Profiles. - (a) Earlier theories and their limitations. - (b) Surface profiles determined by using the shallow-ice approximation. - 5. An Alternative Scaling - a Proper Analysis of Dynamics of Ice Sheets with Ice Divides. - (a) Finite-bed inclination. - (b) Small-bed inclination. - (c) Illustrations. - References. - 6. The Response of a Glacier or an Ice Sheet to Seasonal and Climatic Changes. - 1. Statement of the Problem. - 2. Development of the Kinematic Wave Theory. - (a) Full non-linear theory. - (b) Perturbation expansion-linear theory. - (c) An estimate for the coefficients C and D. - (d) Boundary and initial conditions. - 3. Theoretical Solutions for a Model Glacier. - (a) Solutions neglecting diffusion. - (b) Theoretical solutions for a diffusive model. - (α) Coefficient functions for the special model. - (β) Solution for a step function. - (γ) General solution for uniform accumulation rate. - (δ) The inverse problem - calculation of climate from variations of the snout. - 4. General Treatment for an Arbitrary Valley Glacier. - (a) Fourier analysis in time. - (α) Low-frequency response. - (β) High-frequency response. - (γ) Use of the results. - (b) Direct integration methods. - 5. Derivation of the Surface-wave Equation from First Principles Non-linear Theory. - (a) Surface waves in the shallow-ice approximation. - (α) Integration by the methods of characteristics. - (β) An illustrative example. - (γ) A remark on linearization. - (δ) Effects of diffusion. - (b) Remarks regarding time-dependent surface profiles in ice sheets. - (c) Long waves in an infinite ice slab - Is accounting for diffusion enough?. - (α) Basic equations. - (β) Construction of perturbation solutions. - (γ) Numerical results. - 6. Concluding Remarks. - References. - 7. Three-dimensional and Local Flow Effects in Glaciers and Ice Sheets. - 1. Introduction. - 2. Effect of Valley Sides on the Motion of a Glacier. - (a) Solutions in special cases. - (α) Exact solutions for the limiting cases. - (β) Solution for a slightly off-circular channel. - (γ) A note on very deep and wide channels. - (b) A useful result for symmetrical channels with no boundary slip. - (c) Numerical solution - discussion of results. - 3. Three-dimensional Flow Effects in Ice Sheets. - (a) Basic equations. - (b) Decoupling of the stress-velocity problem from the problem of surface profile. - (c) The equation describing the surface geometry. - (d) The margin conditions. - 4. Variational Principles. - (a) Fundamental variational theorem. - (b) Variational principle for velocities. - (c) Reciprocal variational theorem. - (d) Maximum and minimum principles. - (e) Adoption of the variational principles to ice problems. - 5. Discussion of Some Finite-element Solutions. - References. - Appendix: Detailed Calculations Pertaining to Higher-order Stresses in the Shallow-ice Approximation. - AUTHOR INDEX. - SUBJECT INDEX.
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  • 50
    Monograph available for loan
    Monograph available for loan
    Ottawa : Geological Survey of Canada
    Associated volumes
    Call number: SR 90.0007(317) ; AWI G6-06-0042
    In: Bulletin
    Type of Medium: Monograph available for loan
    Pages: 49 S. + 4 pl.
    ISBN: 066010637X
    Series Statement: Bulletin / Geological Survey of Canada 317
    Language: English
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  • 51
    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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  • 52
    Monograph available for loan
    Monograph available for loan
    San Diego [u.a.] : Academic Press
    Associated volumes
    Call number: AWI A6-92-0276 ; PIK N 455-00-0309
    In: International geophysics series, Vol. 30
    Type of Medium: Monograph available for loan
    Pages: XV, 662 S. , Ill., Kt.
    ISBN: 0122835204 , 0-12-283522-0
    Series Statement: International geophysics series 30
    Language: English
    Note: Contents: Preface. - Acknowledgments. - 1 How the Ocean-Atmosphere System Is Driven. - 1.1 Introduction. - 1.2 The Amount of Energy Received by the Earth. - 1.3 Radiative Equilibrium Models. - 1.4 The Greenhouse Effect. - 1.5 Effects of Convection. - 1.6 Effects of Horizontal Gradients. - 1.7 Variability in Radiative Driving of the Earth. - 2 Transfer of Properties between Atmosphere and Ocean. - 2.1 Introduction. - 2.2 Contrasts in Properties of Ocean and Atmosphere. - 2.3 Momentum Transfer between Air and Sea, and the Atmosphere's Angular Momentum Balance. - 2.4 Dependence of Exchange Rates on Air-Sea Velocity, Temperature, and Humidity Differences. - 2.5 The Hydrological Cycle. - 2.6 The Heat Balance of the Ocean. - 2.7 Surface Density Changes and the Thermohaline Circulation of the Ocean. - 3 Properties of a Fluid at Rest. - 3.1 The Equation of State. - 3.2 Thermodynamic Variables. - 3.3 Values of Thermodynamic Quantities for the Ocean and Atmosphere. - 3.4 Phase Changes. - 3.5 Balance of Forces in a Fluid at Rest. - 3.6 Static Stability. - 3.7 Quantities Associated with Stability. - 3.8 Stability of a Saturated Atmosphere. - 3.9 Graphical Representation of Vertical Soundings. - 4 Equations Satisfied by a Moving Fluid. - 4.1 Properties of a Material Element. - 4.2 Mass Conservation Equation. - 4.3 Balance for a Scalar Quantity like Salinity. - 4.4 The Internal Energy (or Heat) Equation. - 4.5 The Equation of Motion. - 4.6 Mechanical Energy Equation. - 4.7 Total Energy Equation. - 4.8 Bernoulli's Equation. - 4.9 Systematic Effects of Diffusion. - 4.10 Summary List of the Governing Equations. - 4.11 Boundary Conditions. - 4.12 A Coordinate System for Planetary Scale Motions. - 5 Adjustment under Gravity in a Nonrotating System. - 5.1 Introduction: Adjustment to Equilibrium. - 5.2 Perturbations from the Rest State for a Homogenous Inviscid Fluid. - 5.3 Surface Gravity Waves. - 5.4 Dispersion. - 5.5 Short-Wave and Long-Wave Approximations. - 5.6 Shallow-Water Equations Derived Using the Hydrostatic Approximation. - 5.7 Energetics of Shallow-Water Motion. - 5.8 Seiches and Tides in Channels and Gulfs. - 6 Adjustment under Gravity of a Density-Stratified Fluid. - 6.1 Introduction. - 6.2 The Case of Two Superposed Fluids of Different Density. - 6.3 The Baroclinic Mode and the Rigid Lid Approximation. - 6.4 Adjustments within a Continuously Stratified Incompressible Fluid. - 6.5 Internal Gravity Waves. - 6.6 Dispersion Effects. - 6.7 Energetics of internal waves. - 6.8 Internal Waves Generated at a Horizontal Boundary. - 6.9 Effects on Boundary-Generated Waves of Variations of Buoyancy Frequency with Height. - 6.10 Free Waves in the Presence of Boundaries. - 6.11 Waves of Large Horizontal Scale: Normal Modes. - 6.12 An Example of Adjustment to Equilibrium in a Stratified Fluid. - 6.13 Resolution into Normal Modes for the Ocean. - 6.14 Adjustment to Equilibrium in a Stratified Compressible Fluid. - 6.15 Examples of Adjustment in a Compressible Atmosphere. - 6.16 Weak Dispersion of a Pulse. - 6.17 Isobaric Coordinates. - 6.18 The Vertically Integrated Perturbation Energy Equation in Isobaric Coordinates. - 7 Effects of Rotation. - 7.1 Introduction. - 7.2 The Rossby Adjustment Problem. - 7.3 The Transients. - 7.4 Applicability, to the Rotating Earth. - 7.5 The Rossby Radius of Deformation. - 7.6 The Geostrophic Balance. - 7.7 Relative Geostrophic Currents: The Thermal Wind. - 7.8 Available Potential Energy. - 7.9 Circulation and Vorticity. - 7.10 Conservation of Potential Vorticity for a Shallow Homogeneous Layer. - 7.11 Circulation in a Stratified Fluid and Ertel's Potential Vorticity. - 7.12 Perturbation Forms of the Vorticity Equations in a Uniformly Rotating Fluid. - 7.13 Initialization of Fields for Numerical Prediction Schemes. - 8 Gravity Waves in a Rotating Fluid. - 8.1 Introduction. - 8.2 Effect of Rotation on Surface Gravity Waves: Poincare Waves. - 8.3 Dispersion Properties and Energetics of Poincare Waves. - 8.4 Vertically Propagating Internal Waves in a Rotating Fluid. - 8.5 Polarization Relations. - 8.6 Energetics. - 8.7 Waves Generated at a Horizontal Boundary. - 8.8 Mountain Waves. - 8.9 Effects of Variation of Properties with Height. - 8.10 Finite-Amplitude Topographic Effects. - 8.11 Dissipative Effects in the Upper Atmosphere. - 8.12 The Liouville-Green or WKBJ Approximation. - 8.13 Wave Interactions. - 8.14 The Internal Wave Spectrum in the Ocean. - 8.15 Wave Transport and Effects on the Mean Flow. - 8.16 Quasi-geostrophic Flow (f Plane): The Isallobaric Wind. - 9 Forced Motion. - 9.1 Introduction. - 9.2 Forcing Due to Surface Stress: Ekman Transport. - 9.3 Wind-Generated Inertial Oscillations in the Ocean Mixed Layer. - 9.4 Ekman Pumping. - 9.5 Bottom Friction: Velocity Structure of the Boundary Layer. - 9.6 The Laminar Ekman Layer. - 9.7 The Nocturnal Jet. - 9.8 Tide-Producing Forces. - 9.9 Effect of Atmospheric Pressure Variations and Wind on Barotropic Motion in the Sea: The Forced Shallow-Water Equation. - 9.10 Baroclinic Response of the Ocean to Wind Forcing: Use of Normal Modes. - 9.11 Response of the Ocean to a Moving Storm or Hurricane. - 9.12 Spin-Down by Bottom Friction. - 9.13 Buoyancy Forcing. - 9.14 Response to Stationary Forcing: A Barotropic Example. - 9.15 A Forced Baroclinic Vortex. - 9.16 Equilibration through Dissipative Effects. - 10 Effects of Side Boundaries. - 10.1 Introduction. - 10.2 Effects of Rotation on Seiches and Tides in Narrow Channels and Gulfs. - 10.3 Poincare Waves in a Uniform Channel of Arbitrary Width. - 10.4 Kelvin Waves. - 10.5 The Full Set of Modes for an Infinite Channel of Uniform Width. - 10.6 End Effects: Seiches and Tides in a Gulf That Is Not Narrow. - 10.7 Adjustment to Equilibrium in a Channel. - 10.8 Tides. - 10.9 Storm Surges on an Open Coastline: The Local Solution. - 10.10 Surges Moving along the Coast: Forced Kelvin Waves. - 10.11 Coastal Upwelling. - 10.12 Continental Shelf Waves. - 10.13 Coastally Trapped Waves. - 10.14 Eastern Boundary Currents. - 11. The Tropics. - 11.1 Introduction. - 11.2 Effects of Earth's Curvature: Shallow-Water Equations on the Sphere. - 11.3 Potential Vorticity for a Shallow Homogeneous Layer. - 11.4 The Equatorial Beta Plane. - 11.5 The Equatorial Kelvin Wave. - 11.6 Other Equatorially Trapped Waves. - 11.7 The Equatorial Waveguide: Gravity Waves. - 11.8 Planetary Waves and Quasi-geostrophic Motion. - 11.9 Baroclinic Motion near the Equator. - 11.10 Vertically Propagating Equatorial Waves. - 11.11 Adjustment under Gravity near the Equator. - 11.12 Transient Forced Motion. - 11.13 Potential Vorticity for Baroclinic Motion: The Steady Limit. - 11.14 Steady Forced Motion. - 11.15 The Tropical Circulation of the Atmosphere. - 11.16 Tropical Ocean Currents. - 12 Mid-latitudes. - 12.1 Introduction. - 12.2 The Mid-latitude Beta Plane. - 12.3 Planetary Waves. - 12.4 Spin-Up of the Ocean by an Applied Wind Stress. - 12.5 Steady Ocean Circulation. - 12.6 Western Boundary Currents. - 12.7 Vertical Propagation of Planetary Waves in a Medium at Rest. - 12.8 Nonlinear Quasi-geostrophic Flow in Three Dimensions. - 12.9 Small Disturbances on a Zonal Flow Varying with Latitude and Height. - 12.10 Deductions about Vertical Motion from the Quasi-geostrophic Equations. - 13 Instabilities, Fronts, and the General Circulation. - 13.1 Introduction. - 13.2 Free Waves in the Presence of a Horizontal Temperature Gradient. - 13.3 Baroclinic Instability: The Eady Problem. - 13.4 Baroclinic Instability: The Charney Problem. - 13.5 Necessary Conditions for Instability. - 13.6 Barotropic Instability. - 13.7 Eddies in the Ocean. - 13.8 Fronts. - 13.9 The Life Cycle of a Baroclinic Disturbance. - 13.10 General Circulation of the Atmosphere. - Appendix One Units and Their SI Equivalents. - Appendix Two Useful
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  • 53
    Monograph available for loan
    Monograph available for loan
    Boston, Mass. : American Meteorol. Soc.
    Call number: PIK N 456-16-90119
    Type of Medium: Monograph available for loan
    Pages: XVII, 208 S. , Ill., graph. Darst.
    ISBN: 0933876548
    Series Statement: Meteorological Monographs 19,41
    Language: English
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  • 54
    Monograph available for loan
    Monograph available for loan
    Rockville, MD : U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Data and Information Service,
    Call number: PIK N 454-17-90910
    Type of Medium: Monograph available for loan
    Pages: x, 290 Seiten , Diagramme, Karten , 28 cm
    Language: English
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  • 55
    Monograph available for loan
    Monograph available for loan
    Madrid : Secc
    Call number: PIK N 456-17-90913
    Type of Medium: Monograph available for loan
    Pages: 536 Seiten
    Series Statement: Ministerio de Transportes Turismo Y Comunicaciones : Publicación Serie A 114
    Parallel Title: 1,1=6; 2,1=13 von Publicaciones / D / Ministerio del Aire, Subsecretaria de Aviación Civil, Servicio Meteorológico Nacional
    Language: Spanish
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  • 56
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier Scientific Publ.
    Associated volumes
    Call number: AWI Bio-99-0079-2
    In: The Northwest European Pollen Flora, II
    Type of Medium: Monograph available for loan
    Pages: V, 265 S. , zahlr. Ill.
    ISBN: 0444418806
    Language: English
    Note: CONTENTS: Preface / G. C. S. Clarke and W. Punt. - 8. Solanaceae / W. Punt and M. Monna-Brands. - 9. Saxifragaceae / A. A. M. L. Verbeek-Reuvers. - 10. Boraginaceae / G. C. S. Clarke. - 11. Escalloniaceae / A. A. M. L. Verbeek-Reuvers. - 12. Grossulariaceae / A.A.M.L. Verbeek-Reuvers. - 13. Hydrangeaceae / A. A. M. L. Verbeek-Reuvers. - 14. Parnassiaceae / A. A. M. L. Verbeek-Reuvers. - 15. Plantaginaceae / G. C. S. Clarke and M. R.Jones. - 16. Valerianaceae / G. C. S. Clarke and M. R. Jones. - 17. Aceraceae / G. C. S. Clarke and M. R. Jones. - 18. Hippuridaceae / M. S. Engel. - 19. Haloragaceae / M. S. Engel. - 20. Papaveraceae / A. J. Kalis. - Index. - Errata.
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  • 57
    Monograph available for loan
    Monograph available for loan
    Palisades : Lamont-Doherty Geological Observatory, Columbia University
    Call number: AWI G2-19-92382
    Type of Medium: Monograph available for loan
    Pages: 690 Seiten , Illustrationen, Karten
    Language: English
    Note: Table of Contents CHAPTER 1 INTERNAL CYCLING AND THROUGHPUT : Pathways from River Mouth to Sea Floor Depth Profiles of Sea Salt Composition Constituent Classification The Chemical Composition of Marine Organic Matter Composition of Particulate Matter Caught in Sediment Traps A Simple Model for Biologically Utilized CDnstituents The Distributions of Biointermediate Constituents Estimation of Input Rates Horizontal Segregation of CDnstituents in the Deep Sea Summary CHAPTER 2 THE SEDIMENTARY SINK Factors Influencing the Distribution of Sedimentary Constituents Introduction Sediment Types Distribution of Opal Production Opal Solution on the Sea Floor Distribution of Calcite in Marine Sediments Degree of Calcite Saturation Variation in the Carbonate Ion Content of Sea Water Spacial Variations in the CaC0 3 Saturation of Sea Water Factors Controlling the Rate of Calcite Solution Thickness and Shape of the Sublysocline Transition Zone Variation of Sediment Type with Time Manganese Nodules Summary CHAPTER 3 THE ATMOSPHERIC IMPRINT : The Cycles of Gases within the Sea Introduction Solubilities of Gases in Sea Water The Rate of Gas Exchange Stagnant Film Thickness Derived from Natural Radiocarbon Stagnant Film Thicknesses Determined by the Radon Method Oxygen Concentrations in Surface Ocean Water Oxygen Deficiencies in the Deep Sea The Marine N2O Cycle Excess Helium The Carbon Dioxide Content of Surface Ocean Water Origin of the Equatorial Pacific CO2 Anomaly Summary CHAPTER 4 REACTIVE METALS AND THE GREAT PARTICULATE SWEEP : The Cycle of Metals in the Sea Introduction Products of Uranium and Thorium Decay Thorium Isotopes in the Sea Protactinium-231 to Thorium-230 Activity Ratios The Distribution of Lead-210 The Distribution of Polonium-210 The Distribution of Radium-226 Anthropogenic Plutonium in the Sea Toward a Model of Metal Transport Distributions of Stable Metals in the Sea Stable Isotope Ratios in Reactive Metals Transport of Iron and Manganese in the Sea Lessons from Controlled Ecosystem Studies Distribution Coefficients Summary CHAPTER 5 HOW FAST DOES THE MILL GRIND? : Rates of Vertical Mixing and Sediment Accumulation Introduction Rate of Vertical Mixing Implication to the Distribution of Radium-226 Distribution of Radiocarbon in the Ocean Rate of Continental Runoff Sediment Accumulation Rates Radiocarbon Dating Uranium Series Dating Beryllium Dating Potassium-Argon Dating Agreement Among Dating Methods Comparison of Model and Observed Rates of CaC0 3 Solution Summary CHAPTER 6 WHAT KEEPS THE SYSTEM IN WHACK? : Control Mechanisms Operating in the Sea Introduction Phosphate Controls Silicate Controls Carbon Controls Interactions between the Phosphate and Carbon Controls Nitrate Controls Dissolved Oxygen Controls Major Anion Controls Major Cation Controls Possible Causes for Perturbations Recorders of Paleoocean Chemistry The Marine Geochemistry of Carbon-13 The Uranium Content of Coral Factors Influencing Nutrient Gradients in the Deep Sea Summary CBAPTER 7 FREIGHT TRAINS AND FICKIAN CONFUSION : The Movement of Water Through the Deep Sea Introduction Types of Motion One Dimensional Advection - Diffusion Model Tracers for Diapycnal and Isopycnal Mixing Mixing Rates Based on Radon-222 and Radium-228 The Distribution of Helium-3 in the Deep Pacific Sources of Deep Water Northern Component Water Conservative Properties of NCW Initial Radiocarbon to Carbon Ratio in NCW Feed for NCW Production Southern Component Water Ventilation of the Deep Atlantic Ocean Ventilation of the Deep Pacific and Indian Oceans The Grand Cycle of Radiocarbon in the Deep Ocean Biological Short-Circuiting Temporal Variations in Radiocarbon Production Argon-39 Summary CHAPTER 8 THE ANTHROPOGENIC INVASION : The Movement of Water Through the Oceanic Thermocline Introduction Input Functions Hydrology of the Main Thermocline Tritium Distribution within the Thermocline Temporal Trends in Tritium Tritium as a Guide to Deep Water Formation Supplementary Information from Strontium-90 Bomb Carbon-14 Distribution within the Thermocline Explanations for Low Equatorial Bomb Carbon-14 Inventories Implications of Equatorial Upwelling to the Tritium Budget An Upwelling Rate Based on the Equatorial CO2 Anomaly Helium-3 Distribution in the Main Oceanic Thermocline Purposeful Tracers Summary CHAPTER 9 ICE SHEETS AND OCEAN PHOSPHATE : Glacial to Interglacial Changes in Ocean Chemistry Introduction Temperature and Salinity Changes Formation and Destruction of Organic Materials Changes in CaCO3 Storage Evidence for an Early Post-Glacial Lysocline Change Changes in Phosphate Concentration The Combined Evidence from Deep Sea Cores Cause of the Oceanic Phosphate Change An Alternate Scenario Wrap Up of the CO2 Record The Oxygen Record Glacial to Interglacial Changes in Ocean Mixing Rate Glacial to Interglacial Lysocline Changes Changes in the Distribution of Nutrients in the Deep Sea Summary CHAPTER 10 CAN MAN OVERRIDE THE CONTROLS? : The Buildup of Fossil Fuel CO2 in the Atmosphere and Oceans Introduction CO2 Production in the Past CO2 Production in the Future Capacity of the Sea for Fossil Fuel CO2 Uptake Utilizable Capacity - Simplified Calculation Utilizable Capacity - Rigorous Calculation Kinetics of Fossil Fuel CO2 Uptake by the Sea Numerical Model crosschecks on the Validity of the Numerical Model Prediction of Future CO2 Levels Solution of Sea Floor Calcite Summary REFERENCES, CONSTANTS, DEFINITIONS, ABBREVIATIONS AND INDEX Introduction to the References Subject Outline for the References Annotated Reference List Frequently Used Constants Definitions of Isotope Notations Abbreviations Index Foldout Caption
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  • 58
    Call number: ZSP-201-83/22
    In: CRREL Report, 83-22
    Description / Table of Contents: A new experimental method for measuring the soil-water diffusivity of frozen soil under isothermal conditions is introduced. The theoretical justification of the method is presented and the feasibility of the method is demonstrated by experiments conducted using marine-deposited clay. The measured values of the soil-water diffusivity are found comparable to reported experimental data.
    Type of Medium: Series available for loan
    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-22
    Language: English
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  • 59
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/19
    In: CRREL Report, 84-19
    Description / Table of Contents: In this study a method for making long-range forecasts of freeze-up dates in rivers is developed. The method requires the initial water temperature at an upstream station, the long-range air temperature forecast, the predicted mean flow velocity in the river reach, and water temperature response parameters. The water temperature response parameters can be either estimated from the surface heat exchange coefficient and the average flow depth or determined empirically from recorded air and water temperature data. The method is applied to the St. Lawrence River between Kingston, Ontario, and Massena, New York, and is shown to be capable of accurately forecasting freeze-up. Originator-supplied keywords include: Ice formation, and River ice.
    Type of Medium: Series available for loan
    Pages: iii, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 84-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Problem formulation Analytical treatment Application to the upper St. Lawrence River Summary Literature cited Appendix A: Basic program for St. Lawrence River freeze-up forecast
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  • 60
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/24
    In: CRREL Report, 84-24
    Description / Table of Contents: This report describes the growth characteristics and crystalline textures of urea ice sheets which are now used extensively in the Cold Regions Research and Engineering Lab. (CRREL) test basin for modeling sea ice. The aims of the report are to describe the different kinds of crystalline texture encountered in urea ice sheets and to show that even small variations in texture can drastically influence the mechanical behavior of urea ice sheets. Standard petrographic techniques for studying microstructure in thin sections were used on 24 urea ice sheets. These investigations entailed observations of the crystalline texture of the ice (including details of the subgrain structure), grain size measurements, and studies of the nature and extent of urea entrapment and drainage patterns in the ice. Increased knowledge of the factors controlling the crystalline characteristics of urea ice sheets has progressed to the point where test basin researchers at CRREL are now able to fabricate ice sheets with prescribed structures leading to predictable mechanical properties. Originators supplied keywords include: Sea ice, and Mechanical properties.
    Type of Medium: Series available for loan
    Pages: iv, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 84-24
    Language: English
    Note: Contents: Abstract Preface Introduction Objectives Analytical techniques Procedures for growing urea ice sheets Analysis of the crystalline structure of urea ice Characteristics of urea ice Results and discussion Ice sheet no. 1 Ice sheet no. 2 Ice sheet no. 3 Ice sheet no. 4 Ice sheet no. 5 Ice sheet no. 6 Ice sheet no. 7 Ice sheet no. 8 Ice sheet no. 9 Ice sheet no. 10 Ice sheet no. 11 Ice sheet no. 12 Ice sheet no. 13 Ice sheet no. 14 Ice sheet no. 15 Ice sheet no. 16 Ice sheet no. 17 Ice sheet no. 18 Ice sheet no. 19 Ice sheet no. 20 Ice sheet no. 21 Ice sheet no. 22 Ice sheet no. 23 Ice sheet no. 24 Urea concentrations in test tank solution and ice Discussion and conclusions E/σf ratio Thickness of incubation layer Crystal properties Literature cited Appendix A: Thin sections of urea ice sheets
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  • 61
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/17
    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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  • 62
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    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.
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    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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  • 63
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    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.
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    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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  • 64
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    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.
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    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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  • 65
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    Call number: ZSP-201-82/32
    In: CRREL Report, 82-32
    Description / Table of Contents: Low-frequency (10 Hz) volcanic earthquakes originate at a wide range of depths and occur before, during, and after magmatic eruptions. The characteristics of these earthquakes suggest that they are not typical tectonic events. Physically analogous processes occur in hydraulic fracturing of rock formations, low-frequency icequakes in temperate glaciers, and autoresonance in hydroelectric power stations. We propose that unsteady fluid flow in volcanic conduits is the common source mechanism of low-frequency volcanic earthquakes (tremor). The fluid dynamic source mechanism explains low-frequency earthquakes of arbitrary duration, magnitude, and depth of origin, as unsteady flow is independent of physical properties of the fluid and conduit. Fluid transients occur in both low-viscosity gases and high-viscosity liquids. A fluid transient analysis can be formulated as generally as is warranted by knowledge of the composition and physical properties of the fluid, material properties, geometry and roughness of the conduit, and boundary conditions. To demonstrate the analytical potential of the fluid dynamic theory, we consider a single-phase fluid, a melt of Mount Hood andeside at 1250 deg C, in which significant pressure and velocity variations occur only in the longitudinal direction.
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    Pages: 15 Seiten , Illustrationen
    Series Statement: CRREL Report 82-32
    Language: English
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  • 66
    Call number: ZSP-980-71
    In: 2nd Working Meeting "Radioisotope Application and Radiation Processing in Industry", Part 3, 98 to 155
    In: ZfI-Mitteilungen, Nr. 71
    Type of Medium: Series available for loan
    Pages: 368 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 71
    Language: English
    Note: Contents of Part 3 P. Popp, J. Leonhardt: Characterization of coulometric and hypercoulometric ECD mode of operation D. Hinneburg, H.-J. Grosse, J. Leonhardt, P. Popp: Calculation of current-voltage characteristics of electron-capture detectors A.G. Rozno, V.V. Gromov: Study of volume electric charge in radioactive dielectrics by the method of "acoustic sounding" Iv. N. Pandev, M.G. Christova, St.D. Stefanov, N.V. Gentchev, St.T. Bakardjiev, D.T. Genov, Ch.D. Christov: Portable gamma-irradiator - modified model P. Hargittai, V. Stenger: Planning of dose-rate distribution of radiation fields by computer M. Remer: DOSKMF2 - A contribution to the computer-aided design of dose rate distributions A. Heger, H. Dorschner, W. Schumann, D. Pleul: Characterization of the radiation field and control of the optimal electron beam accelerator operation for industrial processes V. Prenerov, K. Shivarov, P. Ivanov: Programme for radiation protection by using portable defectoscopes in industrial building T. Geßner, K. Irmer: Nuclear radiation detectors using high resistivity neutron transmutation doped silicon H.-G. Könnecke, D. Luther: The influence of airing systems on the residence time in biological clarification plants J. Dermietzel, C. Wienhold, H. Grundmann, A. Staschok, J. Koch, E. Bordes: Tracer studies on carbon monoxide and carbon dioxide formation in liquid phase oxidation of p-xylene W. Smułek: Use of technical mixtures of carboxylic acids to the extraction of silver H. Förster: Determination of oxide film thickness on aluminium using 14-MeV neutron activation and BET method H. Jaskólska, L. Waliś, C. Janusz: Investigations of the monocrystallization process of neodymium doped YAG using radiotracers H. Wagler: Substoichiometric determination of Pd-II-traces with dithizone and problems of determination P. Tábor, L. Molnár, D. Nagymihá!yi: Radioisotope gauge for automatic control of cottonwool package H.-W. Thummel, G. Körner, D. Fritzsche: Compensation for thickness variations in determining the bulk material composition on conveyor belts using combined scatter-transmission and thickness measuring methods D. Fritzsche, W. Dolak: Radiometric determination of ash content of raw lignites M. Braune: A simplified mathematical model for scattered transmission of X-rays in raw brown coal P. S. Kamenov, E. I. Vapirev, S. I. Ormandjiev: A new type of nuclear weighing device for transporter belts W. Smulek, M. Borkowski: Separation of reduced molybdenum from fission products. The Mo - HN03 - HDEHP system J. Komosiński, M. Radwan: Selected problems of radioisotope technique for wear investigation of precise elements Dr. A. Várkonyi: The thin layer activation for industry G. Hartmann, P. Kulicke: Wear testing in power stations J. Kraś, Z. Banasik: The radioisotopes in wear investigation of combustion engines H.-D. Grohmann: Short-time measurements of wear on surface activated rails G.M. Ter-Akopian, E.A. Sokol, Fam Ngok Chyong, M.P. Ivanov, L.P. Chelnokov, V.I. Smirnov, V.A. Gorshkov: Neutron multiplicity detector for the study of rare nuclear decay events L. Gąsiorowski, P. Mroziński, K. Sobkowicz, F. Zrudelny: Implementation of Intel 8080 - based microcomputer system in the radioisotope measurements control instrumentation W. Birkholz, M. Steinert: Evaluation of autoradiograms using a microcomputer F. Myšák, M. Krejči, J. Hakl, E. Smrkovský: Study of boron diffusion in high temperature Ni-base alloys by means of solid state track detectors W. Birkholz, H.-Ch. Treutler, K. Freyer, M. Geisler, J. Dubnack: Autoradiography of gallium in silicon H.C. Treutler, K. Freyer: On quantitative autoradiography of semiconductor basic material A.S. Shtan': Radiation evaluation techniques and facilities used for quality assurance of fuel elements and fuel assemblies for nuclear power plants D. Babić, A. Šafranj, V. Marković: Radiation degradation of poly-propylene-molecular weight and melt viscosity change A. Ciszek: Modern irradiation processes equipment-accelerators and their applications G. Kummer: Identification of signals by means of the decision theory N.S. Batchvarov, I.D. Vankov, L.P. Dimitrov, Ch.D. Shukov, P.A. Pavlov: Betareflektometer SR-77
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  • 67
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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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  • 68
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    Call number: ZSP-201-82/18
    In: CRREL Report, 82-18
    Description / Table of Contents: Snow and ice control on highways has come to rely heavily on the use of sodium chloride to maintain a trafficable surface for unimpeded movement. Empirical approaches have led to a wide range of application rates, some clearly excessive, but justified on the ground of safety and expediency. The combination of environmental degradation from the huge quantities of salt entering the environment, along with the increased cost of salt itself and the cost of its application have spurred the search for more precise knowledge of the proper amount of salt to apply to a pavement, considering a range of environmental, traffic and chemical parameters. Since controlled tests in the field are extremely difficult to make, a circular test track of three test pavements, dense-graded asphaltic concrete (DGA), open-graded asphaltic concrete (DGA) and portland cement concrete (PCC), was constructed in a coldroom. Natural snow and ice were applied to the pavements and an instrumented slipping wheel was driven over the surfaces to generate frictional forces. These forces were measured and then used to evaluate the response to salt application with time for three test temperatures. OGA had the lowest friction values at a temperature near the freezing point, but higher initial values or more rapidly increasing values than DGA and PCC following salt application at the two lower temperatures. Optimum application rate of salt on PCC and DGA lies between 100 and 300 lb/lane mile (LM), and a higher rate resulted in slight or no improvement in friction. DGA showed anomalous results: lower friction for 300 Ib/LM and higher friction for both 100 and 500 Ib/LM.
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    Pages: vi, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 82-18
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Background Approach Influencing factors Field factors Laboratory Laboratory trafficking tests Force measurement and coefficient of friction Test tire slip Surface friction gauge Test procedure British portable tester Experimental results Conclusions Recommendations Literature cited Appendix A. Test pavements Appendix B. Pennsylvania State University field study Appendix C. Rochester Institute of Technology field study
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  • 69
    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.
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    Pages: 8 Seiten , Illustrationen
    Series Statement: CRREL Report 82-15
    Language: English
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  • 70
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    Call number: ZSP-201-82/8
    In: CRREL Report, 82-8
    Description / Table of Contents: A detailed analysis of methods for calculating the thermal conductivity of soils is presented, and trends in the predic­tions of these methods are compared. The influence of changes in the moisture content on the calculated thermal con­ductivity of a soil (at constant dry density) is shown, as is the sensitivity of this calculated value to changes in dry den­sity or in the soil solids’ thermal conductivity. The methods are evaluated to determine the extent of agreement of their predictions with measured values obtained on soils of known composition and properties. The deviations of the predicted values are determined for soils that are unfrozen or frozen, coarse or fine, unsaturated, saturated or dry. The applicability of each of the methods under various conditions is determined and recommendations are made as to the best method for each condition.
    Type of Medium: Series available for loan
    Pages: vi, 90 Seiten , Illustrationen
    Series Statement: CRREL Report 82-8
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Analysis of methods for calculating thermal conductivity Introduction Influence of moisture content on thermal conductivity Influence of dry density on thermal conductivity Influence of soil solids’ thermal conductivity Comparison of the various methods Evaluation of methods for calculating thermal conductivity Soils data used for evaluation Computer program Applicability of the methods Discussion and conclusions Applicability to unfrozen soils Applicability to frozen soils Applicability to saturated soils Effect of soil mineral composition Applicability to dry soils Summary of applicability of methods Literature cited Appendix A: Properties of some test soils Appendix B: Comparison of thermal conductivity values computed by the various methods and of their deviations from the values measured
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  • 71
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    Call number: ZSP-201-82/16
    In: CRREL Report, 82-16
    Description / Table of Contents: Abstract: A dynamic-thermodynamic sea ice model which employs a viscous-plastic constitutive law has been applied to the East Greenland area. The model is run on a 40-km spatial scale at 1/4-day time steps for a 60-day period with forcing data beginning on 1 October 1979. Results tend to verify that the model predicts reasonable thicknesses and velocities within the ice margin. Thermodynamic ice growth produces excessive ice extent, however, probably due to inadequate parameterization of oceanic heat flux. Ice velocities near the free ice edge are also not well simulated, and preliminary investigations attribute this to an improper wind field in this area. A simulation which neglects ice strength, effectively damping ice interaction with itself and allowing no resistance to deformation, produces excessive ice drift toward the coast and results in unrealistic nearshore thicknesses. A dynamics-only simulation produced reasonable results, including a more realistic ice extent, but the need for proper thermodynamics is also apparent. Other simulations verify that ice import from the Arctic Basin, and ice transport due to winds and currents, were also important components in the model studies.
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    Pages: v, 40 Seiten , Illustrationen , 29 cm
    Series Statement: CRREL Report 82-16
    Language: English
    Note: CONTENTS Abstract Preface Introduction Model description and application Results and discussion Wind and current fields Standard simulation Thermodynamic simulation Zero ice strength Zero ice import Zero currents Modified currents Zero winds Dynamics simulation Summary and concluding remarks Literature cite
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  • 72
    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.
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    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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  • 73
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    Call number: ZSP-201-82/10
    In: CRREL Report, 82-10
    Description / Table of Contents: Dielectric measurements have been performed on silt and sand samples from permafrost areas using Time Domain Reflectometry. The sample temperatures were varied from +25 °C to -25 °C, and volumetric water content was varied between oven-dry and 0.55 gH2O/cm3. The data were processed for frequencies between 0.1 and 5.0 GHz. The results show a constant K' and a low K' for frequencies up to 1 GHz. A frequency dependence seen on the data above 2 GHz is probably the result of unfrozen, adsorbed water. At moisture levels near saturation at all temperatures, these soils have excellent propagation characteristics for ground-probing radar operating below 0.3 GHz. Massive ice should be easily detectable in permafrost within a few degrees of 0 °C.
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    Pages: 7 Seiten , Illustrationen
    Series Statement: CRREL Report 82-10
    Language: English
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  • 74
    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.
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    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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  • 75
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    Call number: ZSP-201-83/11
    In: CRREL Report, 83-11
    Description / Table of Contents: Investigations of ground radar performance over thawed and seasonally frozen silts, and sands and gravels containing artificial and natural reflectors were carried out in Alaska. The radar emitted 5-10 ns pulses, the center frequency of which was approximately 150 MHz. The artificial reflectors were metal sheets and discs and the natural reflectors were the groundwater table and interfaces between frozen and thawed material. The water table was profiled at three sites where the subsurface material was coarse-grained alluvium. Dielectric constants of 16 to 18 were measured for the thawed silts, 6 to 7 for the frozen silts and 3 to 9 for the sands and gravels. Signal penetration in the thawed high moisture content silts may be achieved only by use of a lower frequency radar, whereas in the sands and gravels greater depths may be detected with more sophisticated signal processing.
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    Pages: 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-11
    Language: English
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  • 76
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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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  • 77
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-80/8
    In: CRREL Report, 80-8
    Description / Table of Contents: This report presents the results of the tests on the new U.S. Coast Guard 140-ft icebreaker Katmai Bay (WTGB-101) in the level plate ice and brash ice in Whitefish Bay and the St. Marys River. The results indicate that the vessel can penetrate 22 in. of level freshwater ice with 2-3 in. of snow cover. It can also penetrate up to 48 in. of brash ice in a continuous mode and at least 30 in. of plate ice by backing and ramming. The installed bubbler system decreased the required power of the vessel from 10 to 30% in brash ice and 25 to 35% in level ice. The low friction coating appears to be effective in decreasing the friction factor when it remains intact; when it peels off it appears to make conditions worse than plain paint. An average dynamic friction factor of 0.15 could be used over the entire hull for these tests.
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    Pages: iv, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 80-8
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion table Introduction Roughness and friction measurements Level plate ice performance Brash ice performance Ramming icebreaking performance Analysis of the data Propulsion efficiency in ice Regression analysis Conclusions and recommendations Literature cited
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  • 78
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-80/2
    In: CRREL Report, 80-2
    Description / Table of Contents: Winter thermal structure and ice conditions in the land-fast ice cover of Lake Champlain were studied in detail for the winters of 1975-76 and 1976-77. The lake was instrumented to a depth of 8.5 m with a string of highly calibrated thermistors attached to an ice mooring system and connected to a data logger at Shelburne Point, Vermont, during the winter of 1975-76 and at Gordon Landing on Grand Isle, Vermont, during 1976-77. This data logger automatically recorded water temperatures from the surface of the lake though snow, ice and water vertical profiles to the bottom of the lake every four hours. Pertinent meteorological parameters are presented for the appropriate measurement sites during the two winter periods, November '75-April '76, and November '76-April '77. Computations were made of freezing degree days (C) for both winters and correlated with ice formation dates. Predictions of ice growth, using the Stefan equation with an empirical coefficient, were correlated with actual ice growth. Documentation was made of the Lake Champlain Transportation Company's first attempt at wintertime navigation by ferry from Gordon Landing, Vermont, to Cumberland Head, New York, in a land fast ice cover during one of the coldest winters of this century.
    Type of Medium: Series available for loan
    Pages: iv, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 80-2
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Climate Site preparation and data collection Instrumentation, measurements and calibration Relocation of measurement site, Fall 1976 Visual observations, ice conditions, and pertinent photography Analysis Air temperature comparisons Degree days of freezing Prediction of ice growth Water and ice temperature Wind Solar radiation Grand Isle ferry operations 1976-77 Conclusions Recommendations Literature cited Appendix A. General observations of ice conditions on Lake Champlain
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  • 79
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    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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  • 80
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    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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  • 81
    Call number: ZSP-201-80/19
    In: CRREL Report, 80-19
    Description / Table of Contents: During the period 1975-1978 the Federal Highway Administration sponsored a series of environmental engineering in­vestigations along the Yukon River to Prudhoe Bay Haul Road. In 1976 the Department of Energy joined these in­vestigations with a series of ecological projects which continue to the present. Both agencies research efforts were con­ducted on a cooperative basis with CRREL’s in-house research program. The objectives of the research focused on 1) an evaluation of the performance of the road, 2) an assessment of changes in the environment associated with the road, 3) documentation of flora and vegetation along the 577-km-long transect, 4) methodologies for revegetation and restoration, and 5) an assessment of biological parameters as indicators of environmental integrity. In support of these objectives, specific studies were undertaken that investigated the climate along the road, thaw and subsidence beneath and adjacent to the road, drainage and side slope performance, distribution and properties of road dust, vegetation distribution, vegetation disturbance and recovery, occurrence of weeds and weedy species, erosion and its control, revegetation and restoration, and construction of the fuel gas line. This report presents background, information on the region, detailed results of the road thaw subsidence and dust investigations, and summaries of revegetation, fuel gas line, vegetation distribution, soil, and weed studies.
    Type of Medium: Series available for loan
    Pages: xv, 187 Seiten , Illustrationen
    Series Statement: CRREL Report 80-19
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Chapter 1. The road and its environment Introduction General physiography Regional climate Surficial and bedrock geology Permafrost and ground ice General biota Vegetation Floristic survey Vegetation mapping Soils and mapping Chapter 2. Roadbed performance and associated investigations Roadbed investigations Roadbed performance Performance of drainage features Performance of sideslopes Conclusions from road, drainage and sideslope performance studies Fuel gas line construction Chapter 3. Distribution and properties of road dust along the northern portion of the Haul Road Introduction Methods Results of wind direction and velocity measurements Dust load and distribution Particle size analyses of dust Chemical composition properties of dust and related samples Soil cation composition Dust impacts on vegetation Discussion and conclusions Chapter 4. Revegetation and restoration investigations Introduction Revegetation approaches Alyeska erosion control and revegetation program Weeds and weedy plants Performance of revegetation Alyeska willow cutting program CRREL restoration experiments Conclusions Revegetation recommendations General report recommendations Literature cited Appendix A: General environmental guidelines applicable to subarctic and arctic road construction Appendix B: University-based studies along the Yukon River-Prudhoe Bay Haul Road Appendix C: CRREL maps of Haul Road showing locations of all study Sites Appendix D: Additional Haul Road cross-sectional profiles Appendix E: Clay mineralogy of road-related materials Appendix F: List of reports in the Joint State/Federal Fish and Wildlife Ad­visory Team series
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  • 82
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/16
    In: CRREL Report, 80-16
    Description / Table of Contents: Eight species of loricate choanoflagellates (Acanthoccidae), Acanthoecopsis spiculifera, Bicosta spinifera, Bicosta antennigera, Callicantha simplex, Calliacantha multispina aff., Crinolina aperta, Diaphanoeca multionnulata, and Parvicorbicula socialis, were observed in samples obtained from the Weddell Sea during the austral summer, 1977. D. multiannulata was described for the first time from these samples; the other organisms have either been described previously or are being described at this time. The distribution of most species within the Weddell Sea was widespread. The distributional, environmental, and morphological range of A. spiculifera, B. spinifera, C. aperta, and P. socialis was expanded. Habitats in which choanoflagellates were found included the water column, the edges of ice floes, ponds on ice floes, and the interiors of ice floes. The presence of choanoflagellates within the ice indicates that there may be a closely coupled trophic relationship with the other two biological components of the ice community, the ice algae and the bacteria. The presence in the ice of seven species with both a caudal appendage and anterior projections suggests a positive relationship between this lorica configuration and the ice habitat. Mechanisms of variance of transverse costal diameters between genera may be useful to the taxonomy and phylogeny of this family.
    Type of Medium: Series available for loan
    Pages: vi, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 80-16
    Language: English
    Note: CONTENTS Introduction Literature review Objectives Materials and methods Results Observations Distribution and environmental tolerances Discussion Morphology Distribution Habitat Summary Conclusions Recommendations for future work Literature cited Appendix A Type descriptions of Acanthoecidae collected from the Weddell Sea
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  • 83
    Series available for loan
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/13
    In: CRREL Report, 80-13
    Description / Table of Contents: Specimens prepared from various types of ice without introducing excessive defects were tested at temperatures ranging from -2° to -190°C. These tests indicated slightly higher Charpy values at lower temperatures and in more highly dispersed material concentrations. Three modes of fracture occurred during testing. Depending on the temperature and the material composition, either of the first two modes, normal fracture or multiple fracture, will appear and will show a normal frequency distribution of Charpy values in each type of ice. The third mode, fracture from both ends,which frequently occurred in the NH4F doped ice, gave Charpy values two to five times higher than the mean value for normal fracture. It can, therefore, be concluded that certain types of doping can alter the mode of fracture, through which drastic modifications of impact resistance my be possible.
    Type of Medium: Series available for loan
    Pages: iii, 13 Seiten , Illustrationen
    Series Statement: CRREL Report 80-13
    Language: English
    Note: Contents Abstract Preface lntroduction Experimental Sample preparation Testing procedure Results General features Commercial Ice Notched commercial ice Sanded commercial ice Pure ice Single crystal ice Snow-ice Colloidal alumina-dispersed ice Colloidal silica.dispersed ice NH4F doped ice HF doped ice Discussion Literature cited
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  • 84
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/5
    In: CRREL Report, 81-5
    Type of Medium: Series available for loan
    Pages: 27 Seiten , Illustrationen
    Series Statement: CRREL Report 81-5
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test setup Test results The USCGC Mackinaw The Roger Slough The Cason J. Callaway The imperial St. Clair Vibration levels Discussion Frequency content Magnitude Mode of transmission Opening the channel Flexural waves Duration and occurrence of maximum vibrations Effect of weather Conclusions and recommendations Literature cited
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  • 85
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/9
    In: CRREL Report, 81-9
    Description / Table of Contents: Abstract: The calculation of the largest horizontal force a relatively thin floating ice plate may exert on a structure requires the knowledge of the buckling load for this floating plate. In the published literature on the stability of continuously supported beams and plates, it is usually assumed that this buckling force corresponds to the lowest bifurcation force Pcr. However, recent studies indicate that, generally, this is not the case, and this report clarifies the situation for floating ice plates. This problem is first studied on a simple model that exhibits the buckling mechanism of a floating ice plate but is amenable to an exact nonlinear analysis. This study shows that, depending on the ratio of the rigidities of the "liquid" and "plate," the post-buckling branch may rise or drop away from the bifurcation point. Thus, Pcr may or may not be the actual buckling load. It is also shown that when lift-off of "plate" from the "liquid" takes place the actual buckling load may drop substantially. This study is followed by an analysis of a floating compressed semi-infinite plate with a straight free edge, assuming that there is no lift-off. It is found that for this case there always exists a buckling load that is lower than Pcr. According to the obtained results, the value Pcr should be used with caution as a buckling load for floating ice plates. It is suggested that the buckling load be determined using the postbuckling equilibrium branch of the plate, taking into consideration the possibility of lift-off of the ice cover from the liquid base.
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    Pages: 7 Seiten , Illustrationen
    Series Statement: CRREL Report 81-9
    Language: English
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  • 86
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-81/11
    In: CRREL Report, 81-11
    Description / Table of Contents: Abstract: Relative displacement data from high explosive, shallow-buried bursts in rock are combined with relative displacement data from the contained nuclear explosion MIGHTY EPIC. Analysis of these data yields a preliminary, semi-empirical technique for predicting the location, direction and magnitude of relative displacements in rock from contained explosions. This technique is used to make relative displacement predictions for the DIABLO HAWK nuclear blast.
    Type of Medium: Series available for loan
    Pages: iv, 23 Seiten , Illustrationen
    Series Statement: CRREL Report 81-11
    Language: English
    Note: CONTENTS Abstract Preface Introduction DIHEST analysis MIGHTY EPIC analysis Geological setting and relative displacement documentation Shear stress analysis 8 Displacement analysis DIABLO HAWK predictions Literature cited
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  • 87
    Call number: ZSP-201-81/6
    In: CRREL Report, 81-6
    Description / Table of Contents: Abstract: A procedure is described for monitoring the microfracturing activity in ice plates subjected to constant loads. Sample time records of freshwater ice plate deflections as well as corresponding total acoustic emission activities are presented. The linear elastic, as well as viscoelastic, response for a simply supported rectangular ice plate is given. Suggested future work using the above procedure is discussed.
    Type of Medium: Series available for loan
    Pages: iv, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 81-6
    Language: English
    Note: CONTENTS Abstract Preface Notation Introduction Experimental procedure and considerations Growth of the ice plate Support of the ice plate Acoustic emission monitoring system Displacement transducers and data recording Mechanical loading System Analysis Experimental results Thin section analysis Summary and discussion Literature cited Appendix A : Ice plate linear elastic response Appendix B: Acoustic emission system sensitivity Appendix C: Ice plate linear viscoelastic response Appendix D: Equipment list
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  • 88
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/3
    In: (DE-B103)105551, CRREL Report
    Description / Table of Contents: Revegetation techniques were investigated for gravel soils in cold regions. Two gravel soil test sites were established in Hanover, New Hampshire, and Fairbanks, Alaska. During three growing seasons, we studied the applicability and cost effectiveness of various nutrient sources and mulch materials. The nutrient sources included sewage sludge (at 40, 60 and 80 tons/acre) and commercial fertilizer (at 200, 400 and 600 lb/acre). The mulching materials were wood fiber mulch with various types of tackifiers, peat moss, and sewage sludge. The effects of refertilization during the second growing season were also studied. At both sites the use of sewage sludge produced superior results in many respects to the use of fertilizer at the application rates studied. Grasses receiving sludge showed better establishment rates and greater plant cover and growth, and were able to withstand the hot drying conditions encountered during the summer months. Slightly quicker grass establishment was noted at the higher rates of application of each nutrient source in Fairbanks, while grass establishment at all sludge rates was good in Hanover. All fertilizer treatments performed poorly in Hanover. No evidence of winter injury to the grasses was noted in any of the treatments. Supplemental applications of nitrogen fertilizer in Hanover during spring of the second growing season proved highly beneficial. The fertilizer helped maintain grass growth even during dry summer conditions. The mulches were applied at the rate of 2,000 lb/acre. They were found to be important in providing a more nearly optimum environment for seedling establishment. Wood fiber mulch and the commercial Wood Fiber Mulch 2000, generally, were the best performers.
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    Pages: vi, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 80-3
    Language: English
    Note: CONTENTS Abstract Preface Introduction Literature review Experimental design Climate Results and discussion Nutrient sources Mulches Soil fertility Cost analysis Summary and conclusions Literature cited
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  • 89
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-80/6
    In: CRREL Report, 80-6
    Description / Table of Contents: Weekly measurements of the thickness of lake, river and fast sea ice made over a period of 10 to 15 years at 66 locations in Canada and Alaska are analyzed, and the portion of the data relating to maximum ice thickness and decay (i.e. the decrease in ice thickness) is examined. Ice thickness curves revealed individual patterns of ice decay, and comparisons between locations disclosed major contrasts in the amount of ice accretion and the times of maximum ice and ice clearance. Although many factors affect the ice decay process, this study investigates in detail the effect of thawing temperatures. Concurrent measurements of the air temperature at each location made it possible to analyze the relationship between accumulated thawing degree-days (ATDD) and ice cover decay. Other factors affecting ice ablation and breakup, such as snow-ice formation, snow cover depth, solar radiation and wind are also discussed.
    Type of Medium: Series available for loan
    Pages: v, 160 Seiten , Illustrationen
    Series Statement: CRREL Report 80-6
    Language: English
    Note: CONTENTS Abstract Preface Introduction Data sources and literature review Canada Alaska Data tabulation Station selection Description of tabulated data Station location and ice measurement site descriptions Review of previous studies on maximum ice in North America Maximum ice thickness maps Date of maximum ice Plotting of the ice decay curves General procedures Categories of water bodies Ice decay at sea ice locations Envelope curves Average curves Snow-ice formation Ice decay at lake ice locations Average curves Regional variations and similarities Ice decay at river ice locations Variations in ice thickness Rapid ice clearance Comparison between Alaskan and Canadian river ice decay curves Incremental extraction of ice decay data for analysis purposes Selection of ice decay intervals Preliminary evaluation of the methodology Further considerations of the methodology Relationships between ice decay and thawing air temperatures Average daily vs maximum daily air temperature 10-day increments vs accumulated values Total years vs year-to-year analysis Evaluation of use of 0°C as a base Final format of the relationship between ice decay and ATDD Evaluation of the final form Possible causes for variations in slope values Decreasing sea ice thickness and thawing air temperatures Factors affecting sea ice decay Relationship between ATDD and sea ice decay Influence of solar radiation and wind on sea ice decay Literature cited Selected bibliography Appendix A. Ice thickness measurements and other related (or associated) observations for stations in Canada and Alaska Appendix B. Maps of least and greatest ice thickness observed at the time of maximum growth, and average date of occurrence Appendix C. Annual ice decay curves for stations in Canada and Alaska
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  • 90
    Call number: ZSP-201-80/4
    In: CRREL Report, 80-4
    Description / Table of Contents: The primary objectives of this study were to 1) prepare a map from Landsat imagery of the Upper Susitna River Basin drainage network, lakes, glaciers and snowfields, 2) identify possible faults and lineaments within the upper basin and within a 100-km radius of the proposed Devil Canyon and Watana dam sites as observed on Landsat imagery, and 3) prepare a Landsat-derived map showing the distribution of surficial geologic materials and poorly drained areas. The EROS Digital Image Enhancement System (EDIES) provided computer- enhanced images of Landsat-1 scene 5470-19560. The EDIES false color composite of this scene was used as the base for mapping drainage network, lakes, glaciers and snowfields, six surficial geologic materials units and poorly drained areas. We used some single-band and other color composites of Landsat images during interpretation. All the above maps were prepared by photointerpretation of Landsat images without using computer analysis, aerial photographs, field data, or published reports. These other data sources were used only after the mapping was completed to compare and verify the information interpreted and delineations mapped from the Landsat images. Four Landsat-1 MSS band 7 winter scenes were used in the photomosaic prepared for the lineament mapping. We mapped only those lineaments related to reported regional tectonics, although there were many more lineaments evident on the Landsat photomosaic.
    Type of Medium: Series available for loan
    Pages: iii, 41 Seiten , Illustrationen
    Series Statement: CRREL Report 80-4
    Language: English
    Note: CONTENTS Abstract Preface Summary Objectives Conclusions Introduction Background Previous cooperative investigations Project rationale and coordination Approach Landsat imagery Interpretation techniques Part I. Use of Landsat imagery in mapping the drainage network, lakes, glaciers and snowfields (Lawrence W. Gatto) Objective Methods Results Conclusions Part II. Use of Landsat imagery in mapping and evaluating geologiclineaments and possible faults (Carolyn J. Merry) Objective Geologic structure Methods Results Conclusions Part Ill. Use of Landsat imagery in mapping surficial materials Section A. Landsat mapping (Harlan L. McKim) Objective Methods Results Section B. Field evaluation (Daniel E. Lawson) Objectives Methods Results Discussion Section C. Conclusions (Daniel E. Lawson and Harlan L. McKim) Literature cited Glossary
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  • 91
    Monograph available for loan
    Monograph available for loan
    Minneapolis : University of Minnesota Press
    Call number: PIK N 630-15-89173
    Description / Table of Contents: A field guide to the wild flowers of western Canada and the adjoining Great Plains states of the United States, including illustrations of nearly 400 species.
    Type of Medium: Monograph available for loan
    Pages: 336 S. , zahlr. Ill.
    Edition: 2nd, rev. ed., 2. print.
    ISBN: 0816613508 : , 0816613516 (pbk.) :
    Language: English
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  • 92
    Monograph available for loan
    Monograph available for loan
    London [u.a.] : Longman
    Call number: PIK N 182-16-90350
    Type of Medium: Monograph available for loan
    Pages: XI, 686 S. , graph. Darst.
    ISBN: 0582444012
    Language: English
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  • 93
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/25
    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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  • 94
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/26
    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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  • 95
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/30
    In: CRREL Report, 83-30
    Description / Table of Contents: Ice sheets are formed and retained in several ways in nature, and an understanding of these factors is needed before most structures can be successfully applied. Many ice sheet retention structures float and are somewhat flexible; others are fixed and rigid or semirigid. An example of the former is the Lake Erie ice boom and of the latter, the Montreal ice control structure. Ice sheet retention technology is changing. The use of timber cribs is gradually but not totally giving way to sheet steel pilings and concrete cells. New structures and applications are being tried but with caution. Ice-hydraulic analyses are helpful in predicting the effects of structures and channel modifications on ice cover formation and retention. Often, varying the flow rate in a particular system at the proper time will make the difference between whether a structure will or will not retain ice. The structure, however, invariably adds reliability to the sheet ice retention process.
    Type of Medium: Series available for loan
    Pages: iv, 39 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 83-30
    Language: English
    Note: Contents Abstract Preface Introduction Natural ice sheets Choosing an ice control structure Flexible structures Ice booms Frazil collector lines Fence booms Rigid or semirigid structures Pier-mounted booms Stone groins Artificial islands Removable gravity structures Timber cribs Weirs Pilings and dolphins Structures built for other purposes Hydroelectric dams Wicket dams Light piers and towers Bridge piers Breakwaters Ice control not using Structures Channel improvements Ice sheet tying Ice sheet bridges Conclusions Literature cited Appendix A: Ice control structure
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  • 96
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/29
    In: CRREL Report, 83-29
    Description / Table of Contents: A literature review indicated that the effects or permafrost on streambank erodibility and stability are not yet understood because systematic and quantitative measurements are seriously lacking. Consequently, general controversy exists as to whether perennially frozen ground inhibits lateral erosion and bankline recession, or whether it increases bank recession rates. Perennially frozen streambanks erode because of modification of the bank's thermal regime by exposure to air and water, and because of various erosional processes. Factors that determine rates and locations of erosion include physical, thermal and structural properties of bank sediments, stream hydraulics and climate. Thermal and physical modification of streambanks may also induce accelerated erosion within permafrost terrain removed from the immediate river environment. Bankline or bluffline recession rates are highly variable, ranging from less than 1 m/year to over 30 m/year and, exceptionally, to over 60 m/year. Long-term observations of the physical and thermal erosion processes and systematic ground surveys and measurements of bankline-bluffline recession rates are needed.
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    Pages: iv, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 83-29
    Language: English
    Note: CONTENTS Abstract Preface Introduction Stream bank erosional processes Permafrost and related factors Permafrost and erosion General Erosional processes Bank zone processes Bluff zone processes Factors affecting perm afrost erodibility Exposure to currents and wind waves Texture and stratigraphy Ice content, distribution and type Slope aspect Coriolis force Timing and depth of thaw Water level and temperature Vegetation Ice and snow cover Groundwater Rates and timing of erosion and recession Overall effects of permafrost Recommendations for research Literature cited Appendix A : Processes of stream bank modifications
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  • 97
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/31
    In: CRREL Report, 83-31
    Description / Table of Contents: A mathematical model is described that is used to determine the maximum ice conveyance capacity of a river channel. Based upon this model, computer programs were developed that enable the ice discharge to be calculated for steady-state flow conditions. For rivers that have uniform flow, the maximum ice-conveying capacity can be described with a simple function expressed in terms of the size of the ice fragments, channel geometry, and the flow of water in the river. For nonuniform flows, the computer program determines the elevation profile of the surface layer in addition to other flow characteristics, such as the velocity and surface concentration of the ice fragments. The location along this surface profile where the ice conveyance capacity becomes less than the upstream supply is determined and is considered to be the position where a surface ice jam or ice bridge will be formed.
    Type of Medium: Series available for loan
    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 83-31
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Constitutive relationships Equations of motion Uniform flow Nonuniform flow Ice transport: Uniform flow Symmetric channel Asymmetric channel Ice transport: Nonuniform flow Further considerations Basis for model improvement Conclusions Literature cited
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  • 98
    Call number: ZSP-201-83/32
    In: CRREL Report, 83-32
    Description / Table of Contents: Ice forces on a bridge pier in the Ottauquechee River, in Quechee, Vermont, were measured by installing fourpanels-each capable of measuring forces in the normal and tangential direction - on both sides of a vertical V-shaped pier nose. The measured forces are presented for a short period during an ice run. After the ice run, the thickness and sizes of the ice floes were measured and the compressive strength of the ice was determined in the laboratory from the ice samples collected along the river banks. The water level measurements made at several locations along theriver are also presented for the period of the ice run.
    Type of Medium: Series available for loan
    Pages: ii, 8 Seiten , Illustrationen
    Series Statement: CRREL Report 83-32
    Language: English
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  • 99
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/33
    In: CRREL Report, 83-33
    Description / Table of Contents: A thermodynamic model has been developed that for the first time describes the entire creep process, including primary, secondary, and tertiary creep, and failure for both constant stress (CSR) tests (σ= const.) and constant strain rate (CSR) tests (ϵ = const.), in the form of a unified constitutive equation and unified failure criteria. Deformation and failure areconsidered as a single thermoactivated process in which the dominant role belongs to the change of entropy. Failure occurs when the entropy change is zero. At that moment the strain rates in CS tests reach the minima and stress in CSR tests reaches the maximum (peak) values. Families of creep (ϵ vs τ) and stress-strain (σ vs ϵ) curves, obtained from uni-axial compression CS and CSR tests of frozen soil, respectively (both presented in dimensionless coordinates), are plotted as straight lines and are superposed, confirming the unity of the deformation and failure process and the validity of the model. A method is developed for determining the parameters of the model, so that creep deformation and the stress-strain relationship of ductile materials such as soils can be predicted based upon information obtained from either type of test.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 83-33
    Language: English
    Note: CONTENTS Abstract Nomenclature Introduction Principal relationships Constitutive equation Failure criteria Secondary creep: Flow equations Creep at constant stress (σ = Const.) Creep model Creep strain (σ = Const.) Creep at constant strain rate (ϵ = Const.) Stress-strain relationship Stress/strain/strain rate at failure Test data Preliminary analysis Constant stress tests (σ = Const.) Constant strain rate tests (ϵ = Const.) The principle of superposition Thermodynamic equation of creep Conclusions Literature cited
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  • 100
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/6
    In: CRREL Report, 83-6
    Description / Table of Contents: During the austral summers of 1976-77 and 1978-79, several ice cores were taken from the McMurdo Ice Shelf brine zone to investigate its thermal, physical and chemical properties. This brine zone consists of a series of super-imposed brine layers (waves) that originate at the seaward edge of the ice shelf and migrate at various rates, depending upon their age and position in the ice shelf. The brine in these layers becomes increasingly concentrated as the waves migrate inland through the permeable ice shelf firn. Chemical analyses of brine samples from the youngest (uppermost) brine wave show that it contains sea salts in normal seawater proportions. Further inland, deeper and older brine layers, though highly saline (S 〉 200 ‰), are severely depleted in SO2-4 with the SO2-4/Na+ ratio being an order of magnitude less than that of normal seawater. Analyses of Na+, K+, Ca2+, Mg2+, SO2-4 and CI-, together with solubility and temperature considerations, show that the sulfate depletion is due to selective precipitation of mirabilite, Na2SO4*10H2O. The location of the inland boundary of brine penetration is closely related to the depth at which the brine en-counters the firn/ice transition. However, a small but measurable migration of brine is still occurring in otherwise impermeable ice; this is attributed to eutectic dissolution of the ice by concentrated brine as it moves into deeper and warmer parts of the McMurdo Ice Shelf.
    Type of Medium: Series available for loan
    Pages: iii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-6
    Language: English
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