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  • Books  (210)
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  • 1980-1984  (210)
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  • Books  (210)
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  • 1
    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
    Location: MOP - must be ordered
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  • 2
    Call number: ZSP-980-89 ; ZSP-980-89(2. Ex.)
    In: ZfI-Mitteilungen ; 89, Nr. 89
    Type of Medium: Series available for loan
    Pages: 132 S. , Ill., graph. Darst., Kt.
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 89
    Language: English
    Note: Contents: Preface. - Tritium in Antarctic precipitation - information on global distribution / D. Hebert. - On the physical geography of the Schirmacher Oasis (East Antarctica, Dronning Maud Land) / W. Richter. - Investigation of Deuterium concentration relations between atmospheric water vapour and precipitations in the Schirmacher Oasis, East Antarctica / P. Kowski. - Isotope-hydrological and hydrochemical characterization of lakes in the Schirmacher Oasis (East Antarctica) / W. Richter, U. Wand, G. Strauch, P. Kowski, W. Kurze. - Isotope-hydrological and hydrochemical studies of the interior Antarctic lake "Untersee" in the Wohlthat Massif, Dronning Maud Land, East Antarctica / W.-D. Hermichen, M. Crelle, P. Kowski, W. Kurze, U. Wand. - The isotope-glaciological situation in the surroundings of the Schirmacher Oasis/Dronning Maud Land - a first overview / W.-D. Hermichen, P. Kowski, G. Strauch. - Radiocarbon dating of breeding places of petrels in the Antarctic / A. Hiller, U. Wand. - K - Ar dating of basalt dykes in the Schirmacher Oasis, Dronning Maud Land, East Antarctica / G. Kaiser, U. Wand.
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  • 3
    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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  • 4
    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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  • 5
    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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  • 6
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    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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  • 7
    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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  • 8
    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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  • 9
    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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  • 10
    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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  • 11
    Call number: ZSP-558-7 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 152 S.
    Language: English
    Location: AWI Reading room
    Location: MOP - must be ordered
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  • 12
    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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  • 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
    Location: AWI Reading room
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  • 14
    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
    Location: AWI Reading room
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  • 15
    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
    Location: AWI Reading room
    Location: MOP - must be ordered
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  • 16
    Call number: AWI P6-09-0022 ; ZSP-597-175 ; ZSP-597-175(2. Ex.) ; ZSP-597-175(3. Ex.)
    In: Skrifter
    Type of Medium: Monograph available for loan
    Pages: 130 S. : Ill., graph. Darst., Kt. + 2 Kt.-Beil.
    ISBN: 8290307160
    Series Statement: Skrifter / Norsk Polarinstitutt 175
    Language: English
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  • 17
    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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  • 18
    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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  • 19
    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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  • 20
    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
    Location: Lower compact magazine
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  • 21
    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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  • 22
    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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  • 23
    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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  • 24
    Call number: 92.1182 ; AWI A3-88-0317
    Type of Medium: Monograph available for loan
    Pages: VII, 205 S. : graph. Darst.
    ISBN: 9027716765
    Classification:
    Historical Geology
    Language: English
    Location: Upper compact magazine
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  • 25
    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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  • 26
    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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  • 27
    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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  • 28
    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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  • 29
    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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  • 30
    Series available for loan
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    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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  • 31
    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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  • 32
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    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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  • 33
    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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  • 34
    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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  • 35
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    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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  • 36
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    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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  • 37
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    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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  • 38
    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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  • 39
    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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  • 40
    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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  • 41
    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
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  • 42
    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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  • 43
    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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  • 44
    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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  • 45
    Call number: AWI G5-98-0371
    In: SEPM short course, No. 10
    Type of Medium: Monograph available for loan
    Pages: Getrennte Zählung , Illustrationen , 30 cm
    Series Statement: SEPM short course 10
    Language: English
    Note: CONTENTS: Introduction / Michael A. Arthur. - Chapter 1: Stable isotopes of oxygen and carbon and their application to sedimentologic and paleoenvironmental problems / Thomas F. Anderson and Michael A. Arthur. - Chapter 2: Stable isotopes of sulfur, nitrogen and deuterium in recent marine environments / Ian R. Kaplan. - Chapter 3: Chemical diagenesis of carbonates: theory and application of trace element technique / Ján Veizer. - Chapter 4: The application of stable isotopes to studies of the origin of dolomite and to problems of diagenesis of clastic sediments / Lynton S. Land. - Bibliography.
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  • 46
    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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  • 47
    Call number: AWI A5-96-0611
    In: Environmental fluid mechanics
    Type of Medium: Monograph available for loan
    Pages: 299 Seiten , Illustrationen
    Edition: 1st edition 1982, reprinted 1984
    ISBN: 9027712476
    Series Statement: Environmental fluid mechanics 1
    Language: English
    Note: Table of Contents: FOREWORD. - CHAPTER 1. INTRODUCTION. - 1.1. Definitions. - 1.2. Practical Scope. - a. The Water Budget. - b. The Energy Budget. - 1.3. Global Climatology. - 1.4. The Transfer of Other Admixtures at the Earth-Atmosphere Interface. - CHAPTER 2. HISTORY OF THE THEORIES OF EVAPORATION - A CHRONOLOGICAL SKETCH. - 2.1. Greek Antiquity. - 2.2. The Roman Period and the Middle Ages. - 2.3. The Seventeenth and Eighteenth Centuries: Initial Measurements and Experimentation. - 2.4. Foundations of Present Theories in the Nineteenth Century. - CHAPTER 3. THE LOWER ATMOSPHERE. - 3.1. Moist Air. - a. Some Parameter Definitions. - b. Useful Forms of the First Law of Thermodynamics. - c. Saturation Vapor Pressure. - 3.2. Hydrostatic Stability of Partly Saturated Atmosphere. - a. Small Adiabatic Displacements. - b. Potential Temperature. - 3.3. Atmospheric Transport of Water Vapor. - a. Conservation of Water Vapor. - b. Other Conservation Equations. - c. Solution of the Transport Equations . - 3.4. The Atmospheric Boundary Layer. - CHAPTER 4. MEAN PROFILES AND SIMILARITY IN A STATIONARY AND HORIZONTALLY UNIFORM ABL. - 4.1. The Dynamic Sublayer. - a. The Logarithmic Profile. - b. The Power Law Approximation. - 4.2. The Surface Sublayer. - a. The Mean Profiles. - b. Some Flux-Profile Functions. - 4.3. Bulk Parameterization of the Whole ABL. - a. Similarity for the Mean Profiles in the Outer Sublayer. - b. Bulk Transfer Equations for the ABL. - 4.4. The Interfacial Sublayers. - a. Similarity for the Mean Profiles. - b. Interfacial Bulk Transfer Equations for Scalar Admixtures. - c. Smooth Surfaces: The Viscous Sublayer. - d. Surfaces with Bluff Roughness Elements. - e. Surfaces with Permeable Roughnesses: The Canopy Sublayer. - CHAPTER 5. THE SURFACE ROUGHNESS PARAMETERIZATION. - 5.1. The Momentum Roughness. - a. Land Surfaces. - b. Water Surfaces. - 5.2. The Scalar Roughness. - a. Calculation from Interfacial Transfer Coefficients. - b. Values Over Water. - CHAPTER 6. ENERGY FLUXES AT THE EARTH'S SURFACE. - 6.1. Net Radiation. - a. Global Short Wave Radiation. - b. Albedo. - c. Long-Wave or Terrestrial Radiation. - 6.2. Energy Absorption by Photosynthesis. - 6.3. Energy Flux at Lower Boundary of the Layer. - a. Land Surfaces. - b. Whole Water Bodies. - c. Water Surfaces. - 6.4. Remaining Terms. - a. Energy Advection. - b. Rate of Change of Energy Stored in the Layer. - CHAPTER 7. ADVECTION EFFECTS NEAR CHANGES IN SURFACE CONDITIONS. - 7.1. The Internal Boundary Layer. - a. Equations for the Mean Field. - b. Methods of Closure for Disturbed Boundary Layers: A Brief Survey. - c. Some General Features of Local Momentum Advection. Fetch Requirement. - 7.2. Evaporation with Local Advection. - a. Analytical Solutions with Power Laws. - b. Numerical Studies. - CHAPTER 8. METHODS BASED ON TURBULENCE MEASUREMENTS. - 8.1. Direct or Eddy-Correlation Method. - a. Instruments. - b. Requirements on Instrumentation. - 8.2. The Dissipation Method. - a. The Direct Variance Dissipation Method. - b. The Inertial Dissipation (or Spectral Density) Method. - CHAPTER 9. METHODS BASED ON MEASUREMENTS OF MEAN PROFILES. - 9.1. Mean Profile Method With Similarity Formulations. - a. Measurements in the Surface Sublayer. - b. Measurements in the Dynamic Sublayer. - c. Upper-Air Measurements: The ABL Profile Method. - 9.2. Bulk Transfer Approach. - a. Over a Uniform Surface. - b. Evaporation From Lakes. - 9.3. Sampling Times. - CHAPTER 10. ENERGY BUDGET AND RELATED METHODS. - 10.1. Standard Application. - a. With Bowen Ratio (EBBR). - b. With Profiles of Mean Wind and of One Scalar (EBWSP). - 10.2. Simplified Methods for Wet Surfaces. - a. Some Comments on Potential Evaporation. - b. The EBWSP Method With Measurements at One Level. - c. Advection-Free Evaporation from Wet Surfaces. - 10.3. Simplified Methods for Actual Evapotranspiration. - a. Adjustment of Penman's Approach With Bulk Stomatal Resistance. - b. Complementary Relationships between Actual and Potential Evaporation. - c. Extensions of Equilibrium Evaporation Concept. - CHAPTER 11. MASS BUDGET METHODS. - 11.1 Terrestrial Water Budget a. Soil Water Depletion and Seepage. - b. River Basins and Other Hydrological Catchments. - c. Lakes and Open-water Reservoirs. - d. Water Budget-Related Instruments; Evaporimeters. - 11.2. Atmospheric Water Budget a. Concept and Formulation b. Application of the Method . - HISTORICAL REFERENCES (PRIOR TO 1900). - REFERENCES. - INDEX.
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  • 48
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Call number: ZSP-168-8
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 20 S. : graph. Darst.
    Series Statement: Berichte zur Polarforschung 8
    Language: English
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  • 49
    Call number: AWI G9-89-0476
    In: International Union of Geological Sciences : Series B, Number 4
    Description / Table of Contents: Antarctic Geoscience is the proceedings volume of the Third Symposium on Antarctic Geology and Geophysics, held in Madison, Wisconsin. The 151 chapters in the book, which include both review papers and original contributions, range over all major fields of geoscience. At a time when interest in Antarctica, its geologic history, and its mineral resource potential is increasing, this book provides the most current and comprehensive overview of the subject. These papers, representing the recent work of many scientists from fifteen nations, offer a balanced assessment of current thought and knowledge concerning the geology and geoscience of Antarctica and the surrounding oceanic regions. Together, they constitute the most up-to-date reference work on Antarctic earth sciences. The book is divided into twelce sections: Gondwanaland (11 chapters), Scotia Arc Region (39, East Antarctica Shield (14), Upper Precambrian-Paleozoic Rocks (11), Paleontology (8), Igneous Rocks (14), Structural Geology and Tectonics (9), Mineral Deposits (4), Crustal Structure (13), Subglacial Morphology (4), Marine Geology (8), and Cenozoic History (16). The volume is generously illustrated with photographs and line drawings and includes a large color geologic map of the continent.
    Type of Medium: Monograph available for loan
    Pages: 1172 Seiten , Illustrationen , 29 cm
    Edition: First printing
    ISBN: 0299084108 , 0-299-08410-8
    Series Statement: International Union of Geological Sciences : Series B Number 4
    Language: English
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  • 50
    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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    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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  • 52
    Call number: AWI A6-92-0306 ; MOP 46247 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XVII, 477 Seiten , Illustrationen
    Edition: second editon
    ISBN: 0471059714
    Language: English
    Note: Contents: Abbreviations. - Partial List of Symbols. - 1 THE GOVERNING EQUATIONS. - 1-1 Introduction. - 1-2 Equation of Motion. - 1-3 Continuity Equation. - 1-4. - Equation of State. - 1-5 First Law of Thermodynamics. - 1-6 The Complete System of Equations. - 1-7 Coordinate Systems. - 1-8 Map Projections. - 1-8-1 Polar Stereographic Projection. - 1-8-2 Mercator Projection. - 1-8-3 Lambert Conformal Projection. - 1-8-4 Additional Remarks. - 1-9 Alternate Vertical Coordinates. - 1-9-1 Pressure Vertical Coordinate. - 1-9-2 Isentropic Vertical Coordinate Θ. - 1-10 Some Energy Relations. - 1-10-1 Kinetic Energy. - 1-10-2 Potential Energy. - 1-11 Available Potential Energy. - 1-12 Vorticity and Divergence Equations. - 1-12-1 Divergence Equations. - 2 WAVE MOTION IN THE ATMOSPHERE: PART 1. - 2-1 Introduction. - 2-2 Linearized Equations. - 2-3 Pure Sound Waves. - 2-4 Sound Waves and Internal Gravity Waves. - 2-5 Surface Gravity Waves. - 2-6 Inertial Gravity Waves and Rossby Waves. - 2-7 Response to Initial Conditions. - 2-8 Geostrophic Adiustment. - 3 SCALE ANALYSIS. - 3-1 Introduction. - 3-2 Shallow-Water Equations. - 3-3 Baroclinic Equations. - 3-4 Midlatitude Analysis. - 3-5 Tropics. - 3-6 Planetary Scale. - 3-7 Balance System. - 4 ATMOSPHERIC WAVES: PART. - 4-1 Introduction. - 4-2 Rossby Waves. - 4-3 Conditions for Barotropic Instability. - 4-4 Some Unstable Profiles. - 4-5 Linear Shear. - 4-6 Barotropic Effects in the Atmosphere. - 4-7 Baroclinic Instability. - 4-8 Baroclinic Instability with Linear Shear. - 4-9 Two-Level Model. - 4-10 Wave Structure. - 4-11 Vertical Energy Propagation. - 4-12 Barotropic Equatorial Waves. - 4-13 Vertical Structure of Equatorial Waves. - 5 NUMERICAL METHODS. - 5-1 Introduction. - 5-2 Finite Difference Methods. - 5-3 The Advection Equation. - 5-4 Some Basic Concepts. - 5-5 Stability Analysis. - 5-5-1 The Matrix Method. - 5-5-2 Von Neumann Method. - 5-5-3 The Energy Method. - 5-6 Examples of the Von Neumann Method. - 5-6-1 Euler Scheme. - 5-6-2 Uncentered Differencing, Von Neumann Method. - 5-6-3 Trapezoidal Implicit Scheme. - 5-6-4 Euler Backward Scheme. - 5-6-5 Fourth-Order Space Differencing. - 5-6-6 Oscillation Equation. - 5-6-7 Two-Dimensional Advection Equation. - 5-6-8 External Gravity Waves, Leapfrog Scheme. - 5-6-9 Staggered Grid. - 5-7 Forward-Backward Scheme, Pressure Averaging, and Semi-Implicit Methods. - 5-7-1 Forward-Backward Scheme. - 5-7-2 Pressure Averaging. - 5-7-3 Time Averaging. - 5-7-4 Semi-Implicit Method. - 5-7-5 Lax Wendroff Scheme. - 5-8 A Summary of Some Difference Schemes. - 5-9 Parabolic Equations. - 5-10 Elliptic Equations. - 5-10-1 Relaxation Method. - 5-10-2 Direct Methods. - 5-10-3 Gaussian Elimination. - 5-10-4 Buneman Variant. - 5-10-5 Helmholtz Equation on a Sphere. - 5-10-6 Reduction of a Three-Dimensional Elliptic Equation to Two-Dimensional Equations. - 5-11 Nonlinear Instability and Aliasing. - 5-11-1 Discrete Mesh. - 5-11-2 Primitive Equations Considerations. - 6 GALERKIN METHODS. - 6-1 Introduction. - 6-2 Example with Spectral and Finite Element Methods. - 6-3 Time Dependence. - 6-4 Barotropic Vorticity Equation with Fourier Basis Functions. - 6-5 Transform Method. - 6-6 Spectral Model of Shallow-Water Equations. - 6-7 Advection Equation with Finite Elements. - 6-8 Barotropic Vorticity Equation with Finite Elements. - 7 NUMERICAL PREDICTION MODELS. - 7-1 Filtered Models. - 7-1-1 Quasi-Geostrophic Equivalent Barotropic Model. - 7-1-1-1 Energetics of the Barotropic Model. - 7-1-2 Quasi-Geostrophic Multilevel Baroclinic Model. - 7-1-3 Linear Balanced Model. - 7-1-4 Nonlinear Balanced Model. - 7-2 Primitive Equation Models. - 7-2-1 Constraints from Continuous Equations. - 7-2-2 Vertical Differencing. - 7-3 Staggered Grid Systems. - 7-4 Example of a Staggered Primitive Equation Model. - 7-4-1 Equations in Curvilinear Coordinates. - 7-4-2 Horizontal Differencing. - 7-4-3 Energy Conservation. - 7-5 Potential Enstrophy Conserving Scheme. - 7-5-1 Continuous Integral Constraints. - 7-5-2 Difference Equations. - 7-5-3 Constraints Enforced. - 7-6 Spherical Grids. - 7-7 Fine Mesh Modeling. - 7-7-1 One-Way Influence. - 7-7-2 Boundary Conditions. - 7-7-3 Two-Way Interaction. - 7-7-4 Initialization on a Bounded Region. - 7-8 Baroclinic Spectral Models. - 7-9 Isentropic Coordinate Models. - 7-10 Upper Boundary Conditions. - 7-11 Mountain Effects. - 8 BOUNDARY LAYER REPRESENTATIONS. - 8-1 Introduction. - 8-2 Reynolds Equations. - 8-3 Bulk Formulas. - 8-4 Eddy Viscosity, K-Theory. - 8-5 Combined Prandtl and Ekman Layers. - 8-5-1 Prandtl Layer (Neutral Stratification). - 8-5-2 Ekman Layer. - 8-6 Nonneutral Surface Layer. - 8-6-1 Matching Ekman Spiral. - 8-7 Similarity Solutions for the Entire PBL. - 8-7-1 Deardorff Mixed Layer Model. - 8-7-2 Surface Layer. - 8-7-3 Matching Solutions for the Surface and Mixed Layers. - 8-7-4 Surface Wind Direction. - 8-7-5 Modified Transfer Coefficients. - 8-8 A Prediction Equation for h. - 8-8-1 Further Comments on PBL Parameterization. - 8-9 High-Resolution Model. - 8-9-1 The Coefficient of Eddy Viscosity. - 8-9-2 Surface Temperature. - 8-9-3 Some Prediction Model Details. - 8-10 Mean Turbulent Field Closure Models (Second-Order Closure). - 9 INCLUSION OF MOISTURE. - 9-1 Moisture Conservation Equation. - 9-1-1 Modified Thermodynamic Equation. - 9-1-2 Equivalent Potential Temperature and Static Energy. - 9-2 Convective Adjustment. - 9-2-1 Case A. Dry Convection, q 〈 qs. - 9-2-2 Case B. Moist Adjustment q ≥ qs. - 9-3 Modeling Cloud Processes. - 9-3-1 Nonconvective Condensation. - 9-4 Cumulus Parameterization. - 9-4-1 Introduction. - 9-4-2 Kuo Method. - 9-5 Parameterizations Involving Cloud Models. - 9-6 Arakawa and Schubert Model. - 9-6-1 Large-Scale Budget Equations. - 9-6-2 Cloud Budget Equations. - 10 RADIATION PARAMETERIZATION. - 10-1 Terrestrial Radiation. - 10-2 Absorbing Substances. - 10-3 Simplified Transmission Functions. - 10-4 Discretization, Long-Wave Radiation. - 10-4-1 Clear Sky. - 10-4-2 Cloudy Sky. - 10-5 Solar Radiation. - 10-5-1 Clear Sky. - 10-5-2 Cloudy Sky, One Cloud Layer. - 10-5-3 Two Contiguous Cloud Layers. - 10-5-4 Two Separated Cloud Layers. - 10-6 Miscellany. - 11 OBJECTIVE ANALYSIS AND INITIALIZATION. - 11-1 Introduction. - 11-2 A Three-Dimensional Analysis. - 11-3 Statistical Methods, Multivariate Analysis. - 11-4 Initialization. - 11-4-1 Introduction. - 11-4-2 Damping Techniques. - 11-4-3 Static Initialization. - 11-4-4 Variational Method. - 11-4-5 Normal Mode Expansions. - 11-4-6 Variational Normal Mode Initialization. - 11-5 Dynamic Balancing. - 11-6 Four-Dimensional Data Assimilation. - 11-7 Newtonian Relaxation or "Nudging". - 11-8 Smoothing and Filtering. - 11-8-1 Two-Dimensional Smoothers. - 11-8-2 Bandpass Filters. - 11-8-3 Boundary Effects. - 12 OCEAN DYNAMICS AND MODELING. - 12-1 Introduction. - 12-2 Wind-Driven Barotropic Models. - 12-3 Nonlinear Effects. - 12-4 Barotropic Numerical Models. - 12-5 Simple Thermohaline Models. - 12-6 Baroclinic Numerical Models. - 12-7 Bottom Topography Effects. - 12-8 Synoptic Scale Eddies. - 12-9 Mixed Layer Models. - 12-10 Problems in Ocean Modeling. - 13 WEATHER AND CLIMATE PREDICTION. - 13-1 Introduction. - 13-2 Current Forecasting Skill. - 13-2-1 Short Range. - 13-2-2 Medium and Longer Ranges. - 13-2-3 Additional Comments on Forecasting. - 13-3 Predictability of the Atmosphere. - 13-4 Statistical-Dynamical Prediction. - 13-4-1 Simple Empirical Corrections. - 13-4-2 Stochastic-Dynamical Prediction. - 13-5 Climate and Climate Prediction. - Appendix Mathematical Relations. - References. - Index.
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  • 53
    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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  • 54
    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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  • 55
    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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  • 56
    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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  • 57
    Call number: MOP Per 581 ; MOP Per 581(1/8) ; ZSP-319/A-1(Sonderheft) ; ZSP-319/A-1(Sonderheft, 2. Ex.)
    In: Geodätische und geophysikalische Veröffentlichungen : Reihe 1, Heft 8, Sonderheft 1
    Type of Medium: Series available for loan
    Pages: 107 Seiten , Illustrationen
    Edition: Sonderheft des NKSCAR der DDR
    Series Statement: Geodätische und geophysikalische Veröffentlichungen : Reihe 1 8
    Language: German , English
    Note: Inhalt: I. Zoologische Untersuchungen im Gebiet der sowjetischen Antarktisstation "Bellinghausen" / R. BANNASCH und K. ODENING. - II. Deuterium- und 18O-Variationen in Seen der Schirmacher-Oase (Ostantarktika) / W. RICHTER und G. STRAUCH. - III. Stable isotope investigations in Antarctica / H. SCHÜTZE, G. STRAUCH, K. WETZEL. - IV. The influence of degradation processes on the isotopic composition of Antarctic precipitation / R. DER. - V. Sommerliche Eisvariationen in der Olaf-Prydz-Bucht / H. GERNANDT. - VI. Zur Geologie des nördlichen Teils des Neptune Range / Pensacola-Gebirges (Antarktika) / W. WEBER und L. V. FEDOROV. - VII. Beobachtungen am Krill (Euphausia superba DANA) im atlantischen Sektor der Antarktis in der Sommersaison 1978 und 1979 / S. HOLZLÖHNER. - VIII. Forschungsreise eines Zubringertrawlers in die Antarktis / G. GUBSCH und U. HOFFMANN.
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  • 58
    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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  • 59
    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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  • 60
    Call number: ZSP-980-80
    In: ZfI-Mitteilungen, Nr. 80
    Type of Medium: Series available for loan
    Pages: 158 Seiten , Illustrationen
    Edition: als Manuskript gedruckt
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 80
    Language: German , Russian , English
    Note: Inhaltsverzeichnis: ZUSAMMENFASSUNGEN DER VORTRÄGE. - Beiträge der Isotopengeologie zur Aufklärung des kontinentalen Wachstums / K. Wetzel. - Ein quantitatives Modell des Schwefelkreislaufes mit Berücksichtigung der Isotopenverhältnisse / G. Weise, K. Wetzel. - Die Prozesse der Stoffumwandlungen in den Anfangsstadien der Erbildung und die Isotopenzusammensetzung des endogenen Stickstoffs / W. F. Wolynez. - Problema juvenil'nosti v izotopnoj geologii / Ju. A. Borščevskij. - Zur Theorie von Isotopenaustauschgleichgewichten in komplizierten natürlichen Systemen / R. Haberlandt, G. Christoph. - Zur Berechnung und Interpretation natürlicher Isotopenvariationen in Alumosilikaten / G. Christoph. - The use of statistical mechanical perturbation theory for the calculation and interpretation of isotopic fractionation factors / M. Wolfsberg. - Relationship between anomalies in the relative abundance of 18O, 17O, 16O and anomalies in the temperature dependence of isotopic fractionation factors / M. Wolfsberg. - Metod rasčeta izotopnych effektov v prirodnych mineralach po približennoj modeli "Razdel'nych Kolebanin" / S. I. Gol'šev, N. L. Padalko. - Intramolekulare Sauerstoffisotopengeothermometrie an Hydrosilicaten / H. Schütze. - Der 18O-Index. Ein isotopengeochemisches Konzept / H. Schütze. - Matematičeskii analiz frakcionirovanija izotopov ugleroda v živoi kletke / A. A. Ivlev. - Anwendung der modifizierten Zelltheorie zur Berechnung von Zustandseigenschaften dichter isotopensubstituierter Fluide / H.-L. Vörtler, J. Heybey. - Statistisch-mechanische Behandlung der Unterschiede im Adsorptionsverhalten isotopischer Spezies / H. Heybey, H.-L. Vörtler. - Theoretische Untersuchungen zu Adsorptionsisotopieeffekten von Erdgaskomponenten unter erhöhten Drücken / J. Heybey, P. Harting. - Experimentelle Untersuchungen zu speziellen Adsorptionsisotopieeffekten unter geologischen Bedingungen / P. Harting, K. Weingart, H. Heybey. - Die Isotopenzusammensetzung (O, H, C, S, N) des Erdmantels / H. Hoefs. - Neodym- und Strontiumisotope und ihre Anwendung auf TR-Mineralisation / S. B. Brandt, W. S. Lepin, W. N. Solodjankina, T. I. Kolosnizyna. - Zur Veränderung der isotopischen Zusammensetzung des Sauerstoffs von Cherts und Carbonaten im Prozess der Diagenese/Metamorphose / O. Gebhardt, H. Schütze. - The isotopic study of Boron in the process of formation of ore deposits / V. I. Ustinov, V. A. Grinenko, S. M. Aleksandrov, T. R. Ivanova. - Temperaturnyj profil' redkometal'nogo mestoroždenija po izotopno-kislorodnym dannym / Ju. A. Borščevskij, S. N. Gavrikova, N. I. Medvedovskaja, V. Ja. Fedčuk. - Biogennye faktory forminrovanija izotopnogo sostava ugleroda organičeskogo veščestva porod facial'no-genetičeskogo tipa / A. A. Ivlev, R. G. Pankina, M. V. Dachnova. - Izotopnyj sostav ugleroda frakcij nefti i organičeskogo veščestva porod / M. G. Frik, Ė. M. Galimov. - Stable isotope ratios in natural gas components separated by gas chromatography / G. Hut. - C-Isotopenuntersuchungen zur Entwicklung des Altpaläozoikums im Thüringischen Schiefergebirge / K. Hahne, I. Maaß, H. Lützner, J. Ellenberg, F. Falk, E. Grumbt. - Isotopengeochemische, thermobarogeochemische und elementgeochemische Untersuchungen an einer hydrothermalen Fluorit-Mineralisaton aus dem Südteil der DDR / G. Strauch, H. Kämpf, R. Thomas, M. Geisler, G. Haase, G. Stiehl. - Untersuchungen zur Isotopenfraktionierung des Stickstoffs in den Systemen NH4+/NH3 und N3- /N2 / H.-M. Nitzsche, G. Stiehl. - δ15N-Profile in der Bodenzone und ihre zeitlichen Veränderungen / H. Hübner. - Izotopnyj sostav ugleroda karbonatov v mestoroždenijach samorodnoj sery / V. I. Kityk, B. I. Srebrodol'skij. - Untersuchungen zur Fraktionierung der Schwefelisotope bei der chemischen und biochemischen Oxydation von Sulfid zu Sulfat / I. Maaß, J. Heyer, K. Wetzel, G. Weise. - Selective determination of quantitative and isotopic composition of sulphur-minerals associations / V. I. Ustinov, V. A. Grinenko. - Untersuchungen zur CO2-Resorption aus thermoindifferenten Kohledioxidmineralwasserbädern durch die Haut des Menschen / G. Hübner, I. Maaß, C. Epperlein, G. Plötner, H. Jordan. - Frakcionirovanie izotopov ugleroda metanobrazujušimi bakterijami pri ich roste na različnych substratach / M. V. Ivanov, S. S. Beljaev, A. M. Ėjakun, V. A. Boidar', K. S. Laurinavičus, O. V. Šipin. - Izotopnyj sostav ugleroda metana, obrazuemogo mikroorganizmami v prirode / M. V. Ivanov, K. S. Laurinavičus, V. A. Bondar', S. S. Beljaev. - Isotopenhydrologische Untersuchungen - Arbeiten aus dem GSF-Institut für Radiohydrometrie / H. Moser. - Tritium im Niederschlag Antarktikas - Aussagen zur globalen Verteilung / D. Herbert. - Untersuchung der Beziehung der Deuteriumkonzentration zwischen atmosphärischem Wasserdampf und Niederschlägen im Gebiet der Schirmacheroase / Ostantarktis / P. Kowski. - Isotopenhydrologische und hydeochemische Charakterisierung von Seen im Gebiet der Schirmacher-Oase, Ostantarktika / W. Richter, U. Wand, G. Strauch, P. Kowski, W. Kurze. - Isotopenglaziologische Untersuchungen zur Klärung der Herkunft des Inlandeiskörpers südlich der Schirmacheroase / Ostantarktis / W.-D. Hermichen, P. Kowski. - Carbon-13 in atmospheric CO2: 1977-1981 / W. G. Mook, C. D. Keeling. - Anwendung von H2 18O auf ökologische und pflanzenphysiologische Fragestellungen / H. Förstel. - Komplexe Isotopenuntersuchungen an armenischen Mineralwässern / R. Trettin, A. Hiller, E. S. Chalatjan. - Die isotope Zusammensetzung des Kristallwassers von Carnalliten und ihrer Ausgangslösungen / H.-D. Schmiedl, K. Koch, T. Böttger, G. Stiehl, J. Pilot. - Zur hydrologischen Interpretation von Isotopendaten im Zusammenhang mit Stofftransportvorgängen / H. Jordan, D. Hebert, K. Fröhlich, R. Gellermann, R.-P. Schols. - Zwei neue Standards zur massenspektrometrischen Isotopenhäufigkeitsbestimmung von Wasserstoff, Kohlenstoff und Sauerstoff im Bereich natürlicher Häufigkeiten / M. Herrmann, H. Gerstenberger. - Methoden der chemischen Konzentrierung und Identifizierung bei der Suche nach seltenen Radionukliden in der Natur / H. Bruchertseifer. - Die Anwendung der ultraempfindlichen Massenspektrometrie zur Isotopenanalytik / H.-J. Dietze, S. Becker. - Möglichkeiten des Nachweises superschwerer Elemente mit massenspektrometrischen Methoden / S. Becker, H.-J. Dietze. - Isotope analysis on nano-mole gas samples / S. Hałas. - Neue Möglichkeiten zur Freisetzung von Messgasen für die massenspektrometrische Isotopenanalysis aus Feststoffen / G. Müller, D. Hessel, H. Zahn, K. Mühle. - Die Kontrolle der Standardmeßbedingungen bei C-14-Datierungen / J. Görsdorf. - Raspredelenie izotopa 14C v različnych uglerodsoderžaščich materialach i frakcijach paleopočv v svjazi s geologičeskimi uslovijami zachoronečnija / L. A. Orlova, V. A. Panyčev, I. V. Nikolaeva. - Some variations in the isotopic composition of uranogenic and thorogenic lead and their significance for investigations of geochronology and genesis of ore and rocks / B. G. Amov. - Neue Daten für die Beiisotopenverhältnisse in Feldspäten aus dem Kristallinkomplex, den Graniten und Erzen Südbulgariens / B. Amow, V. Arnaudow, Z. Baldjiewa, M. Pawlowa. - 40Ar/39Ar-Altersspektren eines Biotits / G. Kaiser, J. Pilot. - Kalium-Calcium-Isochronen für Sylvinite des sibirischen Tafellandes / W. S. Lepin, T. W. Jegorowa, S. B. Brandt. - Beitrag zur Klärung der Genese west- und mittelerzgebirigischer Granite anhand von SR-87/SR-86-Verhältnissen / H. Gerstenberger, G. Haase. - Zur geochronologisch-genetischen Modellierung von Granitoiden im Westerzgebirge und Vogtland / Th. Kaemmel. - Zur Abschätzung von Altersunterschieden innerhalb des Erzgebirgsplutons auf grund von Isotopenaltern / Th. Kaemmel. - Theoretische Aspekte zur radiogeochronologischen Datierung von Gesteinen und Mineralen / G. Christoph. - Die Verteilung der Strontium-90 und Cäsium-137 im Wasserkörper der Ostsee 1975-1982 / D. Weiß, E. Ettenhub
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  • 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-201-82/36
    In: CRREL Report, 82-36
    Description / Table of Contents: Camp construction and drilling activities in 1950 at the East Oumalik drill site in northern Alaska caused extensive degradation of ice-rich, perennially frozen silt and irreversible modification of the upland terrain. In a study of the long-term degradational effects at this site, the near-surface geology was defined by drilling and coring 76 holes (maximum depth of 34 m) in disturbed and undisturbed areas and by laboratory analyses of these cores. Terrain disturbances, including bulldozed roads and excavations, camp structures and off-road vehicle trails, were found to have severely disrupted the site's thermal regime. This led to a thickening of the active layer, melting of the ground ice, thaw subsidence and thaw consolidation of the sediments. Slumps, sediment gravity flows and collapse of materials on slopes bounding thaw depressions expanded the degradation laterally, with thermal and hydraulic erosion removing materials as the depressions widened and deepened with time. Degradational processes became less active after thawed sediments thickened sufficiently to slow the increase in the depth of thaw and permit slope stabilization. The site's terrain is now irregular and hummocky with numerous depressions. Seasonal thaw depths are deeper in disturbed areas than in undisturbed areas and reflect the new moisture conditions and morphology. The severity of disturbance is much greater at East Oumalik than at another old drill site, Fish Creek. The difference results primarily from differences in the physical properties of the sediments, including the quantity and distribution of ground ice.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 82-36
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Methodology Geologic setting Camp construction and occupation Types of disturbance Degradational processes and the effective area of impact Areal effects of disturbance Topography Groundwater, surface water and drainage Sediment properties and near-surface stratigraphy Surficial processes Depth of thaw Comparison to Fish Creek Discussion and conclusions Literature cited
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  • 62
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/13
    In: CRREL Report, 83-13
    Description / Table of Contents: A review on past experimental and theoretical work indicates a need for additional experimentation to characterize the response of snow to inelastic pressure waves. Pressure data from previously conducted explosion tests are analyzed to estimate the elastic limit of snow of 400 -kg/cu m density to be about 36 kPa. This pressure corresponds to a scaled distance of 1.6 m/cu.rt.kg for charges fired beneath the surface of the snow, and to a scaled distance of 1.2 m/cu.rt.kg for charges fired in the air. The effects of a snow cover on the method of clearing a minefield by using an explosive charge fired in the air above the snow surface are also discussed and recommendations are given for further work in this area. Explosive pressure data are used to estimate the maximum effective scaled radius for detonating buried mines at shallow depth to be 0.8 m/cu.rt.kg. Fuel-air explosive will increase this effective radius significantly because of the increase in the size of the source region.
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    Pages: 33 Seiten , Illustrationen
    Series Statement: CRREL Report 83-13
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Objectives Background Problems in describing the response of snow to an applied stress Methods of determining the dynamic behavior of materials Review of previous studies on snow Experimental measurements on snow Summary of snow experiments Theoretical studies Confirmation of the theory Discussion Applications Recommendations Summary Literature cited Appendix A. Selected data from Wisotski and Snyder (1966) Appendix B. Pressure data from Livingston (1964)
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  • 63
    Call number: ZSP-201-83/14
    In: CRREL Report, 83-14
    Description / Table of Contents: An analysis of ice fracture that incorporates dislocation mechanics and linear elastic fracture mechanics is discussed. The derived relationships predict a brittle to ductile transition in polycrystalline ice under tension with a Hall-Petch type dependence of brittle fracture strength on grain size. A uniaxial tensile testing technique, including specimen preparation and loading system design was developed and employed to verify the model. The tensile strength of ice in purely brittle fracture was found to vary with the square root of the reciprocal of grain size, supporting the relationship that the theory suggests. The inherent strength of the ice lattice and the Hall-Petch slope are evaluated and findings discussed in relation to previous results. Monitoring of acoustic emissions was incorporated in the tests, providing insights into the process of microfracture during ice deformation.
    Type of Medium: Series available for loan
    Pages: 43 Seiten , Illustrationen
    Series Statement: CRREL Report 83-14
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Development of testing technique Test specimens Tensile testing Compression testing Experimental results Tensile tests Compression tests Discussion Conclusions Suggestions for further work Literature cited Appendix A: Additional information on seed grains Appendix B: Thin-sectioning procedure Appendix C: Displacement transducer calibration
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  • 64
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/16
    In: CRREL Report, 83-16
    Description / Table of Contents: The presence of snow on the ground can impose limitations on the mobility of wheeled and tracked vehicles. Snow depth and density are the two most easily measured snow properties that can be related to mobility over snow. Existing models of snowpack accumulation and ablation processes and models of internal snowpack structure were examined to determine if a model of the snowpack can be developed for use in predicting the snow parameters that affect mobility. Simple models, such as temperature index models, do not provide sufficient snowpack details, and the more detailed models require too many measured inputs. Components of the various models were selected from a basis of a snowpack model for predicting snow properties related to mobility over snow. Methods of obtaining the input data from some components are suggested, and areas where more development is needed are described.
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    Pages: 34 Seiten , Illustrationen
    Series Statement: CRREL Report 83-16
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Conversion of metric units Introduction Review of existing models Accumulation models Ablation models Using existing models for studying mobility Proposed snowpack model for mobility studies Model components Implementation of the model Developing input data Conclusions Literature cited
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  • 65
    Call number: ZSP-201-83/22
    In: CRREL Report, 83-22
    Description / Table of Contents: A new experimental method for measuring the soil-water diffusivity of frozen soil under isothermal conditions is introduced. The theoretical justification of the method is presented and the feasibility of the method is demonstrated by experiments conducted using marine-deposited clay. The measured values of the soil-water diffusivity are found comparable to reported experimental data.
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    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-22
    Language: English
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  • 66
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/23
    In: CRREL Report, 83-23
    Description / Table of Contents: The problems associated with measuring stresses in ice are reviewed. Theory and laboratory test results are then presented for a stiff cylindrical sensor made of steel that is designed to measure ice stresses in a biaxial stress field. Loading tests on freshwater and saline ice blocks containing the biaxial ice stress sensor indicate that the sensor has a resolution of 20 kPa and an accuracy of better than 15% under a variety of uniaxial and biaxial loading conditions. Principal stress directions can also be determined within 5 degrees. The biaxial ice stress sensor is not significantly affected by variations in the ice elastic modulus, ice creep or differential thermal expansion between the ice and gauge. The sensor also has a low temperature sensitivity (5 kPa/deg C).
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    Pages: 38 Seiten , Illustrationen
    Series Statement: CRREL Report 83-23
    Language: English
    Note: CONTENTS Abstract Preface Introduction Previous work Stress measurements Design considerations Stress sensors Biaxial ice stress sensor Biaxial stress sensor theory Gauge deformation Stresses associated with cylindrical sensors Determination of ice stresses Gauge calibration Evaluation of the biaxial ice stress sensor Temperature sensitivity Biaxial loading test equipment Biaxial loading test results Differential thermal expansion Long-term drift Discussion of test results Conclusions Literature cited
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  • 67
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    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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  • 68
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    Call number: ZSP-201-83/25
    In: CRREL Report, 83-25
    Description / Table of Contents: Ice action on two cylindrical and conical structures, located side by side, was investigated in a small-scale experimental study to determine the interference on the ice forces generated during ice-structure interaction. The proximity of the two structures changes the mode of ice failure, the magnitude and direction of ice forces on the individual structure, and the dominant frequency of ice force variations. Interference effects were determined by comparing the experimental results of tests at different structure spacings.
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    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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  • 69
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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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  • 70
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/26
    In: CRREL Report, 83-26
    Description / Table of Contents: Ice accreted on high-speed rotors operating in supercooled fog can be thrown off by centrifugal force, creating severe unbalance and dangerous projectiles. A simple force balance analysis indicates that the strength of accreted ice and its adhesive strength can be obtained by measuring the thickness of the accretion, the location of the separation, the rotor speed, and the density. Such an analysis was applied to field and laboratory observations of self-shedding events. The results agree reasonably well with other observations.
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    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-26
    Language: English
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  • 71
    Call number: ZSP-201-83/24
    In: CRREL Report, 83-24
    Description / Table of Contents: Secondary recovery of oil at Prudhoe Bay, Alaska, will involve transporting large quantities of seawater in elevated pipelines across tundra for injection into oil-bearing rock strata. The possibility of a pipeline rupture raises questions concerning the effects of seawater on tundra vegetation and soils. To evaluate the relative sensitivities of different plant communities to seawater, eight sites representing the range of vegetation types along the pipeline route were treated with single, saturating applications of seawater during the summer of 1980. Within a month of the treatment 30 of 37 taxa of shrubs and forbs in the experimental plots developed clear symptoms of stress, while none of the 14 graminoid taxa showed apparent adverse affects. Live vascular plant cover was thus reduced by 89 and 91% in the two dry sites and by 54, 74 and 83% in the three moist sites, respectively. Live(green) bryophyte cover was markedly reduced in the moist experimental sites in 1981. Bryophytes in all but one of the wet-site experimental plots were apparently unaffected by the seawater treatment. Two species of foliose lichens treated with seawater showed marked deterioration in 1981. All other lichen taxa were apparently unaffected by the seawater treatment. The absorption and retention of salts by the soil is inversely related to the soil moisture regime. In the wet sites, conductivities approached prespill levels within about 30 days. In such sites, spills at the experimental volumes are quickly diluted and the salts flushed from the soil. In the dry sites, on the other hand, salts are retained in the soil, apparently concentrating at or near the seasonal thaw line.
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    Pages: 43 Seiten , Illustrationen
    Series Statement: CRREL Report 83-24
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods Site selection and preparation Prespill assessment Seawater application Postspill assessment Enzyme assay and analysis of soil flora Results and discussion Soil-solution conductivities Vascular plant response Cryptogam response Site factors and plant response Soil flora and extracellular soil enzymes Limitations of this study Summary and conclusions Literature cited Appendix: Plant taxa included in this study
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  • 72
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    Call number: ZSP-201-84/15
    In: CRREL Report, 84-15
    Description / Table of Contents: Measurements of meltwater pH from annual layers of South Pole firn and ice samples ranging in age from 40 to 2000 years B.P. show that precipitation at this remote site has a higher natural acidity than that expected from atmospheric equilibrium with CO2. The average pH of deaerated (CO2-free) samples was 5.64 + or - 0.08, while air-equilibrated samples averaged 5.37 + or - 0.008, a pH that is about a factor of two more acidic than the expected background pH of 5.65. The observed 'excess' acidity can be accounted for by natural SO4(2)- and NO(3)- levels in the samples probably originating from non-anthropogenic H2SO4 and HNO3. Because of the presence of these naturally occurring acids in South Pole precipitation, a pH of 5.4 is considered a more representative baseline reference pH for acid precipitation studies.
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    Pages: ii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 84-15
    Language: English
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  • 73
    Call number: ZSP-201-84/16
    In: CRREL Report, 84-16
    Description / Table of Contents: Phase composition curves are presented for a typical saline silt from Lanzhou, P.R.C., and compared to some silts from Alaska. The unfrozen water content of the Chinese silt is much higher than that of the Alaskan silts due to the large amount of soluble salts present in the silts from China, which are not present in silt from interior Alaska. When the salt is removed, the unfrozen water content is then similar for both the Chinese and Alaskan silt. Here we introduce a technique for correcting the unfrozen water content of partially frozen soils due to high salt concentrations. We calculate the equivalent molality of the salts in the unfrozen water at various temperatures from a measurement of the electrical conductivity of the extract from saturated paste.
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    Pages: iii, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 84-16
    Language: English
    Note: Contents Abstract Preface Introduction Background Materials Sample preparation Nuclear magnetic resonance Specific surface area Electrical conductivity Results and discussion Summary Literature cited Appendix A: Unfrozen water content vs temperature data for Lanzhou silt
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  • 74
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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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  • 75
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    Call number: ZSP-201-84/11
    In: CRREL Report, 84-11
    Description / Table of Contents: Data obtained from two sets of data buoys either air-dropped or deployed by ship onto the Weddell Sea pack ice during the period from Dec 1978 to Nov 1980 are presented. The buoy data include position, pressure and temperature information and to date represent the most complete combined weather and pack ice drift records for the ice-covered Southern Ocean regions. The buoys tended to drift north initially and then to turn east generally between latitudes 62°S and 64°S. Buoy 1433 turned east farther south at approximately 67°S but at about the same time as buoy 0527, implying that the westerly wind belt was farther south than usual in 1979. The range of air pressures-from about 950 mb to about 1020 mb is typical of the circumpolar low pressure trough in the Southern Hemisphere. All buoys were equipped with an internal or compartment temperature sensor. The 1980 buoys also contained an external air temperature sensor in a ventilated, shielded can at 1-m height. Although differences of 10°C or more between recorded air and compartment temperatures are common, the correlation between the two measured temperatures is generally very good. The compartment temperatures are higher probably because the buoy is radiationally heated. We found that subtracting 3°C from the average daily compartment temperature yielded a good estimate of the average air temperature for any given day. This technique can be used to construct average daily air temperature records for the 1979 buoys which only contained the internal or compartment temperature sensor.
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    Pages: v, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 84-11
    Language: English
    Note: CONTENTS Abstract Preface Introduction Methods and instrumentation Results Drift tracks Pressure data Temperature data Discussion Conclusions Literature cited
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  • 76
    Call number: ZSP-201-84/9
    In: CRREL Report, 84-9
    Description / Table of Contents: This report presents the results of the first phase of a test program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. In Phase I, 222 constant-strain-rate uni-axial compression tests were performed on ice samples from ten multi-year pressure ridges to examine the magnitude and variation of ice strength within and between pressure ridges. A limited number of constant-strain-rate compression and tension tests, constant-load compression tests, and conventional triaxial tests were also performed on ice samples from a multi-year floe to provide preliminary data for developing ice yield criteria and constitutive laws for multi-year sea ice. Data are presented on the strength, failure strain, and modulus of multi-year sea ice under different loading conditions. The statistical variation of ice strength within and between pressure ridges is examined, as well as the effects of ice temperature, porosity, structure, strain rate and confining pressure on the mechanical properties of multi-year sea ice.
    Type of Medium: Series available for loan
    Pages: v, 107 Seiten , Illustrationen
    Series Statement: CRREL Report 84-9
    Language: English
    Note: CONTENTS Abstract Preface Introduction Field Sampling Site selection and description Ice sampling procedures Shipping and storage of ice samples Testing Techniques Multi-year Pressure Ridge Tests Ice description Sampling scheme and test variables Uniaxial compressive strength Residual compressive strength Failure strains Initial tangent modulus Statistical Variations in Ice Strength Differences in strength above and below level ice Sources of the variation in strength Shape of the strength histograms Multi-year Floe Ice Tests Ice description Uniaxial compressive strength Constant-load compression tests Constant-strain-rate tension tests Triaxial tests Conclusions Literature Cited Appendix A: Structural profile of a multi-year pressure ridge core Appendix B: Ridge uniaxial compression test data Appendix C: Structural profile of the continuous multi-year floe core Appendix D: Multi-year floe test data
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  • 77
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-82/34
    In: CRREL Report, 82-34
    Description / Table of Contents: The ice discharge through an opening in an ice control structure was documented to be a function of the floe size, ice type, ice floe conditions and vessel direction. The model data for the average ice discharge per vessel transit scaled to prototype values compared favorably with data taken at the St. Marys River ice control structure (ICS). The model results of the force measurements were also consistent with data taken at the St. Marys ICS. The dynamic loading conditions were independent of vessel direction. The dynamic loading to the structure using 3 types of ice (plastic, natural and urea-doped) showed a considerable difference in their means and standard deviations. The urea-doped ice was evaluated for dynamic loading conditions, and reasonable peak values of 3 to 5 times the mean load at each measuring position were recorded, independent of vessel direction. It appears that synthetic random ice floes may be used in model studies where ice discharge through an opening in a structure needs to be documented. This study shows the synthetic random ice floe discharge to fall reasonably within the values obtained for natural ice discharge for both rafted and non-rafted ice fields above the ICS. However, the question of whether synthetic ice can be used for analyzing force distributions and dynamic force loading criteria cannot be fully answered at this time because the load distributions of the synthetic and natural floes appear to differ.
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    Pages: 68 Seiten , Illustrationen
    Series Statement: CRREL Report 82-34
    Language: English
    Note: CONTENTS Abstract Preface Introduction Scope of work Ice discharge from Lake Huron into St. Clair River Water velocity profiles at Port Huron Ice conditions Physical model Basis for selection Description Instrumentation Model ice control structure Open water calibration Open water tests Experimental procedures and techniques Ice cover calibration Ice control structure orientation Analysis of ice discharge due to ship transits Natural ice Synthetic ice Forces on the ice control structure Static measurements Dynamic force measurements Potential additional shear stresses Anticipated ice conditions with ICS Conclusions Literature cited Appendix A. Application of model results Appendix B. Suggested additional studies Appendix C. Derivation of ice discharge
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  • 78
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    Call number: ZSP-201-83/9
    In: CRREL Report, 83-9
    Description / Table of Contents: Recent observations of shore ice pile-up and ride-up along the coast of the Alaska Beaufort Sea are presented. Information is given to show that sea ice movement on shore has overridden steep coastal bluffs and has thrust inland over 150 m, gouging into and pushing up mounds of beach sand, gravel, boulders and peat and, inland, the tundra material. The resulting ice scar morphology was found to remain for tens of years. Onshore ice movements up to 20 m are relatively common, but those over 100 m are very infrequent. Spring is a dangerous time, when sea ice melts away from the shore, allowing ice to move freely. Under this condition, driving stresses of less than 100 kPa can push thick sea ice onto the land.
    Type of Medium: Series available for loan
    Pages: v, 59 Seiten , Illustrationen
    Series Statement: CRREL Report 83-9
    Language: English
    Note: Contents Abstract Preface Introduction Winter 1979-80 observations Winter 1980-81 and summer 1981 observations Winter 1981-82 and summer 1982 observations Old ice ride-up features Discussion Literature cited Appendix A. The boulder rampart and rock littered shore west of Konganevik Pt. Appendix B. Site location maps
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  • 79
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    Call number: ZSP-201-83/8
    In: CRREL Report, 83-8
    Description / Table of Contents: In the course of model tests with urea-doped ice in the CRREL Ice Engineering Facility test basin, the growth process and the physical and mechanical properties of the model ice were investigated. The parameters which were varied were: urea concentration in the tank water, air temperature during growth, growth duration, and tempering time. Uniformity of ice thickness and ice mechanical properties over the whole tank area were found to be satisfactory. The structure of the urea-doped ice was found to be similar to that of the ice except for a relatively thick incubation layer over a dendritic bottom layer. Empirical relationships were established between: ice thickness and negative degree-hours; mechanical properties and growth temperature, urea concentration, and ice thickness; and reduction in mechanical properties and tempting time. The results of the study are presented in charts which permit reliable scheduling of model tests with required ice thickness and ice flexural strength.
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    Pages: vii, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 83-8
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Experimental facility and procedures Ice test basin Ice growth procedure Measurements Ice growth and structure Ice thickness distribution Ice growth during freeze-up Ice growth during warm-up Structure of urea-doped ice Mechanical properties of urea-doped ice Introductory remarks Model of a two-layer elastic material Properties of urea-doped ice during freeze-up Properties of urea-doped ice during warm-up Applications to test program scheduling Summary and conclusions Literature cited Appendix A: Results of ice thickness measurements for various growth conditions Appendix B: Properties of untempered ice Appendix C: Properties of tempered ice
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  • 80
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/6
    In: CRREL Report, 83-6
    Description / Table of Contents: During the austral summers of 1976-77 and 1978-79, several ice cores were taken from the McMurdo Ice Shelf brine zone to investigate its thermal, physical and chemical properties. This brine zone consists of a series of super-imposed brine layers (waves) that originate at the seaward edge of the ice shelf and migrate at various rates, depending upon their age and position in the ice shelf. The brine in these layers becomes increasingly concentrated as the waves migrate inland through the permeable ice shelf firn. Chemical analyses of brine samples from the youngest (uppermost) brine wave show that it contains sea salts in normal seawater proportions. Further inland, deeper and older brine layers, though highly saline (S 〉 200 ‰), are severely depleted in SO2-4 with the SO2-4/Na+ ratio being an order of magnitude less than that of normal seawater. Analyses of Na+, K+, Ca2+, Mg2+, SO2-4 and CI-, together with solubility and temperature considerations, show that the sulfate depletion is due to selective precipitation of mirabilite, Na2SO4*10H2O. The location of the inland boundary of brine penetration is closely related to the depth at which the brine en-counters the firn/ice transition. However, a small but measurable migration of brine is still occurring in otherwise impermeable ice; this is attributed to eutectic dissolution of the ice by concentrated brine as it moves into deeper and warmer parts of the McMurdo Ice Shelf.
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    Pages: iii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-6
    Language: English
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  • 81
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    Call number: ZSP-201-83/2
    In: CRREL Report, 83-2
    Description / Table of Contents: A numerical model of rime ice accretion on an arbitrary two-dimensional airfoil is presented. The physics of the model are described and results are presented that demonstrate, by comparison with other theoretical data and experimental data, that the model predictions are believable. Results are also presented that illustrate the capability of the model to handle time-dependent rime ice accretion, taking into account the feedback between the ice accretion and the airflow and droplet trajectory fields.
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    Pages: vi, 81 Seiten , Illustrationen
    Series Statement: CRREL Report 83-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Methodology Potential flow around an arbitrary airfoil Incompressible velocity field Droplet trajectory equation Computational procedure for trajectories Determining the point of impact Calculation of collision efficiencies Accreting an ice layer Determining the accuracy of the flow field Determining the accuracy of the trajectories Results and discussion Comparing results with and without the history term Collision efficiency of NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 0° attack angle Conclusions and recommendations Literature cited Appendix A : Sample input Appendix B: Sample output Appendix C : Program listing
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  • 82
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    Call number: ZSP-201-83/5
    In: CRREL Report, 83-5
    Description / Table of Contents: This report presents the results of dynamic ice-structure interaction model tests conducted at the CRREL Ice Engineering Facility. A flexible, single-pile, bottom-founded offshore structure was simulated by a test pile with about a one-to-ten scale ratio. Urea (instead of sodium chloride) was used as dopant to scale down the ice properties, resulting in good model ice properties. Six ice fields were frozen and 18 tests carried out. In all cases distinctive dynamic ice structure interaction vibrations appeared, from which abundant data were collected. In tests with linear ice velocity sweep, sawtooth-shaped ice force fluctuations occurred first. With increasing velocity the natural modes of the test pile were excited, and shifts from one mode to another occurred. The maximum ice force values appeared mostly with low loading rates, but high forces appeared random'y at high ice velocities. As a general trend, ice force maximums, averages and standard deviations decreased with increasing ice velocities. The aspect ratio effect of the ice force in continuous crushing follows the same dependence as in static loadings. The frequency of observed ice forces is strongly dominated by the natural modes of the structure. Dynamically unstable natural modes tend to make the developing ice force frequencies the same as the natural frequencies. Otherwise the resulting frequency depends directly on structural stiffness and ice velocity and inversely on the ice force range. During vibrations the displacement rates of the structure overcome the velocity of ice, making low loading rates and hence high ice forces possible. During crushing, ice induces both positive and negative damping.
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    Pages: iv, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 83-5
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test arrangements Ice properties Crushing patterns Maximum ice force vs velocity Dynamic aspect ratio effect and crushing strength Measured ice force frequencies Calculated ice force frequencies Accelerations, velocities and displacements Damping Ice-induced negative damping Limit cycles Buckling load Conclusions Literature cited
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  • 83
    Call number: ZSP-201-83/7
    In: CRREL Report, 83-7
    Description / Table of Contents: Peak power generation with hydropower creates tailwater flow conditions characterized by high and low flows with abrupt transitions between these states. Flows occurring in tailwaters typically form sharp-fronted, large-amplitude waves of relatively short period. An understanding of the mechanics of downstream propagation of these waves is important both for direct application in studies of the tailwater and because of the similarity of these waves to those following a dam break. An analysis of the dynamic equations of open channel flow is used to quantify the relative importance of flow wave convection, diffusion and dispersion in rivers. The relative importance of each process is re­lated to the relative magnitude of terms in the dynamic equations, providing a physical basis for model formulation. A one-dimensional diffusion wave flow routing model, modified for tailwaters, simulates the important physical pro­cesses affecting the flow and is straightforward to apply. The model is based upon a numerical solution of the kine­matic wave equation. The “modified equation,” Hirt, and von Neumann analyses are used to gain insight into the stability and dissipative and dispersive behavior of the numerical solution, and results of these analyses are compared. A set of linear routings is used to demonstrate the dissipative and dispersive behavior predicted by the analyses and to verify the accuracy of an expression that quantifies the numerical diffusion of the model. The analyses provide a basis for selection of numerical parameters for model applications. The capability and accuracy of the model are enhanced when physical wave diffusion is balanced by numerical diffusion in the model. Maintaining the diffusion balance re­quires that the time derivative weighting parameter 0 be variable and in some instances negative. Though some amount of phase error is introduced, negative 0 values have no adverse effect upon model stability. Field studies were con­ducted to demonstrate the benefits of careful model development and analysis, and to verify the diffusion wave model for rapidly varying tailwater flow. The bed slope and roughness characteristics of the field study reaches (below Apalachia and Norris Dams) differ greatly, spanning those of a large number of rivers of practical interest. The accurate simulation of flow in both of these tailwaters attests to the soundness of both the physical basis of the model and the numerical solution technique. The field studies confirm, for the extreme case of rapidly varying flow in a mildly sloped river, that inertia has a negligible effect upon unsteady flow waves at low Froude numbers. Additionally, these studies verify that diffusion of short-period waves in rivers is generally significant.
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    Pages: vi, 41 Seiten , Illustrationen
    Series Statement: CRREL Report 83-7
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Physical diffusion and dispersion in open channel flow Modeling approach Description of the diffusion wave flow routing model Analysis of the numerical model Modified equation and Hirt analyses of diffusion wave model von Neumann analysis of the diffusion wave model Linear case studies Accuracy considerations of the numerical solution Field studies Apalachia Dam tailwater Norris Dam tailwater Conclusions Literature cited
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  • 84
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-82/38
    In: CRREL Report, 82-38
    Description / Table of Contents: Extreme cold causes heavy buildup of frost, ice and condensation on many windows. It also increases the incentive for improving the airtightness of windows against heat loss. Our study shows that tightening specifications for Alaskan windows to permit only 30% of the air leakage allowed by current American airtightness standards is economically attractive. We also recommend triple glazing in much of Alaska to avoid window icing in homes and barracks. We base our conclusions on a two-year field study of Alaskan military bases that included recording humidity and temperature data, observing moisture accumulation on windows and measuring airtightness with a fan pressurization device.
    Type of Medium: Series available for loan
    Pages: v, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 82-38
    Language: English
    Note: Contents Abstract Preface Nomenclature Introduction Previous work in cold weather window performance Investigation Data acquisition and analysis Modeling the window thermal regime Moisture and ice observations Airtightness testing and analysis Annual heat loss from air leakage Results and conclusions Moisture on windows Airtightness Airtightness economics Recommendations for windows in extreme cold Airtightness Multiple glazing Literature cited Appendix A: Moisture levels and airtightness Appendix B: Dewpoint data Appendix C: Sample observations of icing
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  • 85
    Call number: ZSP-201-82/37
    In: CRREL Report, 82-37
    Description / Table of Contents: This report presents a Landsat-derived land cover map of the northwest portion of the Arctic National Wildlife Refuge, Alaska. The report is divided into two parts. The first is devoted to the land cover map with detailed descriptions of the mapping methods and legend. The second part is a description of the study area. The classification system used for the maps is an improvement over existing methods of describing tundra vegetation. It is a comprehensive method of nomenclature that consistently applies the same criteria for all vegetation units. It is applicable for large- and small-scale mapping and is suitable for describing vegetation complexes, which are common in the patterned-ground terrain of the Alaskan Arctic. The system is applicable to Landsat-derived land cover classifications. The description of the study area focuses on five primary terrain types: flat thaw-lake plains, hilly coastal plains, foothills, mountainous terrain, and river flood plains. Topography, landforms, soils and vegetation are described for each terrain type. The report also contains area summaries for the Landsat-derived map categories. The area summaries are generated for the five terrain types and for the 89 townships within the study areas. Two land cover maps at 1:250,000 are included.
    Type of Medium: Series available for loan
    Pages: 68 Seiten , Illustrationen, 2 Karten
    Series Statement: CRREL Report 82-37
    Language: English
    Note: CONTENTS Abstract Preface Foreword Introduction A land cover map of the ANWR study area Legend development Mapping method Results Discussion Description of the ANWR study area General description Description of specific terrain types Conclusions Literature cited Appendix A: Descriptions of Landsat land cover categories for ANWR Appendix B: Area summaries Appendix C: Aproximate equivalent units in several systems of land cover, wetland and vegetation classifications used in northern Alaska Appendix D: Soil taxonomy Appendix E: Summary of principal Landsat land cover categories within the terrain types of the ANWR study area
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  • 86
    Call number: ZSP-201-82/19
    In: CRREL Report, 82-19
    Description / Table of Contents: Under proper design and management, a forest ecosystem in the central United States should renovate municipal wastewater as long or longer than conventional agricultural systems, especially when design limitations are hydraulic loading rate, heavy metals, P and N. Forest systems require smaller buffer zones than agricultural systems and lower sprinkler pressures. Immature forests are better wastewater renovators than mature forests.
    Type of Medium: Series available for loan
    Pages: iv, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 82-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Forest systems design Pretreatment Distribution systems Public health considerations Buffer zone requirements Toxic effects Public access Hydraulic loading Nutrient uptake and loading Introduction Nitrogen Phosphorus Trace metals Design considerations Hydraulic loading rates Nitrogen loading rates Forest management options Reforestation Existing forest ecosystems Short term rotation plantations Potential long term effects on forest ecosystems Longevity of forest systems Consequences of overloading Soil chemical, physical and hydrologic properties Productivity Summary Literature cited
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  • 87
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/18
    In: CRREL Report, 82-18
    Description / Table of Contents: Snow and ice control on highways has come to rely heavily on the use of sodium chloride to maintain a trafficable surface for unimpeded movement. Empirical approaches have led to a wide range of application rates, some clearly excessive, but justified on the ground of safety and expediency. The combination of environmental degradation from the huge quantities of salt entering the environment, along with the increased cost of salt itself and the cost of its application have spurred the search for more precise knowledge of the proper amount of salt to apply to a pavement, considering a range of environmental, traffic and chemical parameters. Since controlled tests in the field are extremely difficult to make, a circular test track of three test pavements, dense-graded asphaltic concrete (DGA), open-graded asphaltic concrete (DGA) and portland cement concrete (PCC), was constructed in a coldroom. Natural snow and ice were applied to the pavements and an instrumented slipping wheel was driven over the surfaces to generate frictional forces. These forces were measured and then used to evaluate the response to salt application with time for three test temperatures. OGA had the lowest friction values at a temperature near the freezing point, but higher initial values or more rapidly increasing values than DGA and PCC following salt application at the two lower temperatures. Optimum application rate of salt on PCC and DGA lies between 100 and 300 lb/lane mile (LM), and a higher rate resulted in slight or no improvement in friction. DGA showed anomalous results: lower friction for 300 Ib/LM and higher friction for both 100 and 500 Ib/LM.
    Type of Medium: Series available for loan
    Pages: vi, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 82-18
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Background Approach Influencing factors Field factors Laboratory Laboratory trafficking tests Force measurement and coefficient of friction Test tire slip Surface friction gauge Test procedure British portable tester Experimental results Conclusions Recommendations Literature cited Appendix A. Test pavements Appendix B. Pennsylvania State University field study Appendix C. Rochester Institute of Technology field study
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  • 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-201-82/17
    In: CRREL Report, 82-17
    Description / Table of Contents: Seismic P and SH wave refraction experiments at the NATO RSG-11 test site in Munster Nord, Federal Republic of Germany, reveal the presence of a nearly horizontal, three-layer velocity structure. The upper layer, composed of un­consolidated glacial till, is 1 m thick and has P (compressional) and SH (shear-horizontal) wave velocities of 240 and 165 m s-1. The second layer, made up of similar, more compacted material, is 9.5 m thick, with a P wave velocity of 470 m s-1 and an SH wave velocity of 275 m s-1. The third layer, interpreted as the groundwater table, is located at a depth of 10.5 m and has a P wave velocity of 1590 m s-1. The SH wave velocity of this layer is controlled by the matrix material and is the same as that of the second layer. A single, unreversed observation indicated a fourth layer at a depth of about 20 m, but the existence of this layer remains unconfirmed. The observed fundamental mode Love wave dispersion is in agreement with the theoretical dispersion predicted by the refraction velocities. Computed partial derivatives of phase velocity with respect to shear wave velocity show, for the frequencies observed, that the dispersion confirms the thicknesses and velocities of the two upper layers and is not affected by the deeper structure.
    Type of Medium: Series available for loan
    Pages: iv, 33 Seiten , Illustrationen
    Series Statement: CRREL Report 82-17
    Language: English
    Note: CONTENTS Abstract Preface Introduction Refraction experiments Procedure Equipment Results P waves Low velocity zone SH waves Surface wave experiments Summary and discussion Literature cited Appendix A: P wave refraction data Appendix B: SH wave refraction data. Appendix C: Surface wave dispersion calculations
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  • 89
    Call number: ZSP-201-82/15
    In: CRREL Report, 82-15
    Description / Table of Contents: An experiment is described that demonstrates the balance between the ice and the unfrozen water in a frozen soil as water is removed. Nuclear magnetic resonance (NMR) is used to monitor the unfrozen water content as the soil is dehydrated by a molecular sieve material. Our results show that the unfrozen water content of a Morin clay soil remains constant until the total water content has been reduced to the point where no ice remains in the system. Once the ice is depleted, the unfrozen water content determined by NMR corresponds to the total water content of the soil determined by the weight of water removed by the molecular sieve material. Thus the validity of utilizing NMR in determining unfrozen water contents vs temperature is established.
    Type of Medium: Series available for loan
    Pages: 8 Seiten , Illustrationen
    Series Statement: CRREL Report 82-15
    Language: English
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  • 90
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/16
    In: CRREL Report, 82-16
    Description / Table of Contents: Abstract: A dynamic-thermodynamic sea ice model which employs a viscous-plastic constitutive law has been applied to the East Greenland area. The model is run on a 40-km spatial scale at 1/4-day time steps for a 60-day period with forcing data beginning on 1 October 1979. Results tend to verify that the model predicts reasonable thicknesses and velocities within the ice margin. Thermodynamic ice growth produces excessive ice extent, however, probably due to inadequate parameterization of oceanic heat flux. Ice velocities near the free ice edge are also not well simulated, and preliminary investigations attribute this to an improper wind field in this area. A simulation which neglects ice strength, effectively damping ice interaction with itself and allowing no resistance to deformation, produces excessive ice drift toward the coast and results in unrealistic nearshore thicknesses. A dynamics-only simulation produced reasonable results, including a more realistic ice extent, but the need for proper thermodynamics is also apparent. Other simulations verify that ice import from the Arctic Basin, and ice transport due to winds and currents, were also important components in the model studies.
    Type of Medium: Series available for loan
    Pages: v, 40 Seiten , Illustrationen , 29 cm
    Series Statement: CRREL Report 82-16
    Language: English
    Note: CONTENTS Abstract Preface Introduction Model description and application Results and discussion Wind and current fields Standard simulation Thermodynamic simulation Zero ice strength Zero ice import Zero currents Modified currents Zero winds Dynamics simulation Summary and concluding remarks Literature cite
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  • 91
    Call number: ZSP-201-80/20
    In: CRREL Report, 80-20
    Description / Table of Contents: Results of impulse radar studies of sea ice give support to the concept of a sea ice model in which the ice bottom is composed of an array of lossy parallel plate waveguides. The fundametal relation between the average bulk brine volume of sea ice and its electrical and strength properties is discussed as is the remote detection of under-ice current alignment. It was found that 1) the average effective bulk dielectric constant is dependent upon the average bulk brine volume of the sea ice; 2) sea ice anisotropy, arising from a bottom structure of crystal platelets with a preferred c-axis horizontal alignment, can be detected by radio echo sounding measurements made not only on the ice surface but also from an airborne platform; 3) the effective coefficient of reflection from the seaiIce bottom decreases with increasing average effective bulk dielectric constant of the ice, decreases with increasing bulk brine volume, and is typically one to two orders of magnitude lower dhan the coefficient of reflection from the ice surface; and 4) the losses In sea ice increase with increasing average bulk brine volume.
    Type of Medium: Series available for loan
    Pages: v, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 80-24
    Language: English
    Note: CONTENTS Abstract Preface Introduction Field program Results and discussion Conclusions Literature cited Appendix: Data analysis procedures
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  • 92
    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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  • 93
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/27
    In: CRREL Report, 80-27
    Description / Table of Contents: No general, analytical solution exists for phase change around a cylinder, thus, approximate methods have been evaluated. The heat balance integral technique applied to the cylinder gave excellent results when compared to published numerical solutions. Graphical solutions are given for phase change about a cylinder for ranges of the Stefan number, superheat parameter, and property value ratios for typical soils. An approximate, general solution has been derived which is reasonably accurate and can be used for any values of the above-mentioned parameters. The effective thermal diffusivity method has been shown to be useful for practical problems of phase change.
    Type of Medium: Series available for loan
    Pages: v, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 80-27
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Zero superheat Constant phase change rate Zero sensible heat Finite sensible heat Finite superheat Quasi-steady solution Heat balance integral solution Approximate methods Conclusions Literature cited
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  • 94
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/26
    In: CRREL Report, 80-26
    Description / Table of Contents: A vital concern to the survivability of hardened underground structures in rock is the relative displacement induced along geologic discontinuities by nearby explosions. Such displacement, commonly termed block motion, can occur along faults, joints, bedding planes and other structural weaknesses in rock. This report documents all occurrences of block motion observed during the development of DIHEST, a series of shallow-buried high explosive experiments designed to simulate the direct induced ground motions from a nuclear surface burst. Instances of block motion are described, along with pertinent details of the explosive arrays, geology and ground motion fields. The influence of these and other factors on the direction and magnitude of block motion is discussed.
    Type of Medium: Series available for loan
    Pages: vi, 62 Seiten , Illustrationen
    Series Statement: CRREL Report 80-26
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors Introduction STARMET Test description Test results PLANEWAVE II Test description Test results DATEX II Test description Test results HANDEC II Test description Test results ROCKTEST II Test description Test results Summary and discussion Literature cited
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  • 95
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/31
    In: CRREL Report, 80-31
    Description / Table of Contents: Ice accretion on structures built on the earth’s surface is discussed. Sources of water are the atmosphere or water bodies near or surrounding the structure. Ice types include frost, rime, glaze, and spray; properties and conditions governing their formation are presented. Methods of estimating accretion rates and total accretion on structures are given, and extracts from U.S. and Canadian codes for ice and wind loads on structures are included. Techniques for preventing or removing ice accretion are presented.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 80-31
    Language: English
    Note: CONTENTS Abstract Preface 1. Types of ice accretion a. Frost b. Rime c. Glaze d. Spray ice 2. Conditions governing type of accreted ice a. Meteorological b. Structural 3. Accretion rates a. Fundamentals b. Effect of height c. Geographical distribution 4. Spray icing 5. Structural design factors a. Dead loads b. Wind field in the boundary layer c. Windloads 6. Techniques for minimizing structural icing 7. Data collection needs 8. Literature cited
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  • 96
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/8
    In: CRREL Report, 80-8
    Description / Table of Contents: This report presents the results of the tests on the new U.S. Coast Guard 140-ft icebreaker Katmai Bay (WTGB-101) in the level plate ice and brash ice in Whitefish Bay and the St. Marys River. The results indicate that the vessel can penetrate 22 in. of level freshwater ice with 2-3 in. of snow cover. It can also penetrate up to 48 in. of brash ice in a continuous mode and at least 30 in. of plate ice by backing and ramming. The installed bubbler system decreased the required power of the vessel from 10 to 30% in brash ice and 25 to 35% in level ice. The low friction coating appears to be effective in decreasing the friction factor when it remains intact; when it peels off it appears to make conditions worse than plain paint. An average dynamic friction factor of 0.15 could be used over the entire hull for these tests.
    Type of Medium: Series available for loan
    Pages: iv, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 80-8
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion table Introduction Roughness and friction measurements Level plate ice performance Brash ice performance Ramming icebreaking performance Analysis of the data Propulsion efficiency in ice Regression analysis Conclusions and recommendations Literature cited
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  • 97
    Call number: ZSP-201-80/10
    In: CRREL Report, 80-10
    Description / Table of Contents: A mathematical model of coupled heat and moisture flow in soils has been developed. The model includes algorithms for phase change of soil moisture and frost heave and permits several types of boundary and initial conditions. The finite element method of weighted residual (Galerkin procedure) was chosen to simulate the spatial regime and the Crank-Nicholson method was used for the time domain portion of the model. To facilitate evaluation of the model, the heat and moisture fluxes were essentially decoupled; moisture flux was then simulated accurately, as were heat flux and frost heave in a laboratory test. Comparison of the simulated and experimental data illustrates the importance of unsaturated hydraulic conductivity. It is one parameter which is difficult to measure and for which only a few laboratory test results are available. Therefore, unsaturated hydraulic conductivities calculated in the computer model may be a significant source of error in calculations of frost heave. The algorithm incorporating effects of surcharge and overburden was inconclusively evaluated. Time-dependent frost penetration and frost heave in laboratory specimens were closely simulated with the model. After 10 days of simulation, the computed frost heave was about 2.3 cm vs 2.0 cm and 2.8 cm in two tests. Frost penetration was computed as 15 cm and was measured at 12.0 cm and 12.2 cm in the two laboratory samples after 10 days.
    Type of Medium: Series available for loan
    Pages: v, 49 Seiten , Illustrationen
    Series Statement: CRREL Report 80-10
    Language: English
    Note: CONTENTS Abstract Preface Introduction One-dimensional equations of simultaneous heat and moisture flux Moisture transport Heat transport Phase change Coupling effects Frost heave algorithm Development of computer model Finite difference vs finite element method Finite element formulation Time domain solution Evaluation of the mathematical model Heat flux Moisture flux Numerical dispersion Frost heave of homogeneous laboratory samples Conclusions Recommended studies to refine the model Literature cited Appendix A. Work plan, staffing and instrumentation requirements for correlating results oflaboratory frost susceptibility tests with field performance Appendix B. Proposed investigation of thaw weakening of subgrade soil and granular unboundbase course Appendix C. Derivation of finite element system matrices
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  • 98
    Call number: ZSP-201-81/1
    In: CRREL Report, 81-01
    Description / Table of Contents: Abstract: The formation of ice jams and their meteorological indicators were studied in detail for the winters of 1975-76, 1976-77 and 1977-78 on the Ottauquechee River at and east of Woodstock, Vermont. Meteorological data are presented for nearby National Weather Service Co-Operative Stations as well as for CRREL sites on the Ottauquechee River. The severity of each winter is discussed, as are the effects of a heavy rainfall on a high water equivalent snow cover. The resultant runoff and subsequent ice jamming that occurs is discussed. Continuous monitoring of water temperature before, during and immediately after an ice cover formed on the river during the winter of 1977-78 is included. The report includes a section on warm sewer outfall effects on the ice at and below a municipal treatment plant. Retrieved data will assist in future modeling studies to help predict ice formation, growth, decay and jamming of river ice covers.
    Type of Medium: Series available for loan
    Pages: iv, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 81-01
    Language: English
    Note: CONTENTS Abstract Preface Introduction Meteorological data retrieval and measurements Meteorological effects on river ice cover Winter 1975-76 Winter 1976-77 Winter 1977-78 Analysis of ice formation and decay Mechanism of ice formation Ice growth and decay on the Ottauquechee River, 1975-76, 1976-77, 1977-78 Influence of warm sewage effluent on river water temperatures and ice conditions Conclusions Literature cited Appendix A: Climatological observations Appendix B: Ice conditions, field remarks and pertinent photography
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  • 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-201-82/6
    In: CRREL Report, 82-6
    Description / Table of Contents: The interpretation of continuous radar profiles requires an alternative geophysical means of obtaining ground dielectric information. Ground dielectric properties were measured using wide-angle reflection and refraction (WARR) soundings with a ground-probing radar set that transmits pulses f a few nanoseconds duration. The investigations, carried out over sandy gravel in interior Alaska, provided dielectric data to about a 5-m depth. The WARR soundings were displayed as individual traces allowing interference between separate events and dispersion to be observed, and the soundings were compared with continuous radar and resistivity profiles conducted concurrently to extract the maximum amount of dielectric information. The dielectric constants, derived mainly from the direct ground waves propagating along the surface, ranged from 2.9 to 7.4. Dielectric values interpreted for one site predicted the possibility of a refracted event which may have occurred during one of the soundings.
    Type of Medium: Series available for loan
    Pages: iii, 11 Seiten , Illustrationen
    Series Statement: CRREL Report 82-6
    Language: English
    Note: CONTENTS Abstract Preface Introduction Theory of ground wave propagation from a horizontal electric dipole Equipment and methods Results Site 1 Site 2 Site 3 Summary and concluding remarks Literature cited
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  • 100
    Call number: ZSP-SCAR-570-4
    In: National Antarctic Research Report to SCAR, No. 4
    Type of Medium: Series available for loan
    Pages: 24 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 4
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 81-October 82. - II. Planned Activities, October 82-October 83. - References.
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