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  • 1990-1994  (1,577,931)
  • 1950-1954  (228,318)
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  • 1
    Call number: ZSP-321-7
    In: GEOMAR-Report, 7
    Type of Medium: Series available for loan
    Pages: 104, [12] Seiten , Illustrationen , 30 cm
    Series Statement: GEOMAR-Report 7
    Language: German
    Note: Zugleich: Dissertation, Universität Kiel, 1991 , INHALTSVERZEICHNIS ZUSAMMENFASSUNG I. EINLEITUNG 1. Einführung und Zielsetzungen 2. Morphologie und Ozeanographie im Europäischen Nordmeer II. METHODEN 1. Das Untersuchungsmaterial 1.1 Beprobung der Sedimente 1. 2 Chemische Aufbereitung 2. Klassifizierung der organischen Mikrofossilien 3. Auswertung der Streupräparate 3.1 Relative Häufigkeiten 3.2 Semiquantitative Abschätzungen der Zystenkonzentrationen 4. Zeitskalen 5. Statistische Verfahren 5.1 Klusteranalyse 5. 2 Faktorenanalyse III. DIE PALÖKOLOGIE DER DINGFLAGELLATEN-ZYSTEN UND VERWANDTER ORGANISCHER MIKROFOSSILIEN IM EUROPÄISCHEN NORDMEER 1. Rekonstruktion der Ökologie aus Verbreitungsmustern in rezenten Oberflächensedimenten 2. Ökologie der Dinoflagellaten und ihrer Zysten 2.1 Die Ökologie der Dinoflagellaten und die biologische Bedeutung ihrer Zysten 2.2 Die Ökologie der Dinoflagellaten-Zysten 2.3 Fossile Oberlieferung der Dinoflagellaten-Populationen 3. Die Verbreitungsmuster der Taxa und Gemeinschaften 3.1 Biogeographie und Ökologie der einzelnen Taxa 3.2 Gemeinschaften im Europäischen Nordmeer 3.3 Konzentrationen der Dinoflagellaten-Zysten 4. Die ökologische Klassifikation der Taxa 4.1 Klusteranalyse: Gruppierung der Taxa 4.2 Faktorenanalyse: Definiten von Gemeinschaften 4.3 Synthese: Die ökologische Klassifikation 5. Vergleich mit dem kieseligenund kalkigen Plankton 5.1 Konzentrationen der Planktongruppen 5.2 Zusammensetzung der Faunen und Floren 6. Zusammenfassung: Ökologie und Ozeanographie 6.1 Die Verbreitungsmuster einzelner Arten und die Ozeanographie 6.2 Gemeinschaften und Ozeanographie IV. DIE SPÄT-UND POSTGLAZIALE ENTWICKLUNG DES NORWEGENSTROMES 1. Paläo-ozeanographie in den letzten 15000 Jahren 2. Ergebnisse 2.1 Dinozysten-Gemeinschaften im Spät-und Postglazial 2.2 Stratigraphie und Florenereignisse 2.3 Die isochrone Verbreitung der einzelnen Taxa 3. Dinoflagellaten-Zysten als Anzeiger palökologischer Veränderungen 3.1 Die Entwicklung der Gemeinschaften im Europäischen Nordmeer 3.2 Die Entwicklung der Gemeinschaften im Europäischen Nord-meer im Vergleich zu den angrenzenden Meeresgebieten 4. Die spät-und postglazialen Fluktuationen und Veränderungen des Norwegenstromes 4.1 Ursachen für die ozeanegraphischen Veränderungen 4.2 Zusammenhänge zwischen Florenveränderungen und paläo-ozeanographischen Ereignissen V. DANK VI. LITERATURVERZEICHNIS TAFELN
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  • 2
    Monograph available for loan
    Monograph available for loan
    London : H.M.S.O
    Call number: AWI G10-18-91809
    Type of Medium: Monograph available for loan
    Pages: 45 Seiten , Karte , 30 cm
    Edition: 2nd ed
    ISBN: 0115917179 (pbk.)
    Language: English
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  • 3
    Series available for loan
    Series available for loan
    Milano : Politecnico di Milano
    Call number: MOP S 6265
    Type of Medium: Series available for loan
    Pages: Seite 279-341 , Karten
    Edition: Sonderdruck
    Series Statement: Pubblicazioni dell'instituto di Geodesia, Topografia e Fotogrammetria N. 78
    Language: Undetermined
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  • 4
    Monograph available for loan
    Monograph available for loan
    München : Frederking und Thaler
    Call number: AWI E3-18-91885
    Description / Table of Contents: Ein internationales Team unter Führung des Franzosen Jean-Louis Etienne und des Amerikaners Will Steger durchquert mit Hundeschlitten die Antarktis an ihrer breitesten Stelle. Die Reise dauert sieben Monate und führt über 6100 km von der Spitze der Antarktischen Halbinsel im Westen über den Südpol bis Mirny am Indischen Ozean, der russischen Basis. Sechs erfahrene, verwegene, durchtrainierte Männer trotzen der Kälte und der Einsamkeit, dem Schnee und dem Nebel, den Orkanen und dem Eis auf diesem unwirtlichsten Kontinent der Erde. Sie sind einem Wechselbad von Monotonie und Gefahr, von menschlichen Konflikten und Bedrohung der Natur unterworfen. Aber ihr Mut, ihr Durchhaltevermögen und nicht zuletzt die Großartigkeit der Landschaft tragen sie über alle Schwierigkeiten hinweg. Euphorische, ja ekstatische Augenblicke entschädigen für alle Entbehrungen und Spannungen fern der Zivilisation. Als sensibler Franzose führt Etienne Buch über die Ereignisse. Seismographisch registriert er die Stimmungsschwankungen bei den einzelnen Mitgliedern des Teams und beim Team insgesamt, zwischen Freude und Enttäuschung, Leben im Augenblick und Phantasien, die in die unerreichbare Welt der Farben und Düfte zurückführen. Ein spannender Bericht, gleichzeitig Abenteuer, psychologische Studie und Schilderung des Zusammenlebens von sechs "Polarmenschen" unter extremen Bedingungen.
    Description / Table of Contents: Die Antarktis ist der unwirtlichste Kontinent unseres Planeten. Stürme erreichen dort Geschwindigkeiten von mehr als 180 km/h, und die Temperaturen sinken bis unter minus 50 Grad. Tückische Blizzards rauben jede Orientierung, und tödliche Gletscherspalten öffnen sich unvermutet vor den Füßen des Reisenden. Trotz dieser Risiken durchquerten sechs Männer die Eiswüste von West nach Ost - eine Strecke von 6300 Kilometern. Sie wuchsen über alle Unterschiede der Kulturen und Nationalitäten zu einer verschworenen Gemeinschaft zusammen. Ihr abenteuerliches Unternehmen ist ein deutlicher Wink an alle Verantwortlichen, dafür zu sorgen, daß die Antarktis, unser wichtigstes Wasserreservoir, ein Land des Friedens und der Forschung bleibt.
    Type of Medium: Monograph available for loan
    Pages: 266, [24] Seiten , Illustrationen , 24 cm
    ISBN: 3894053100 (Pp.)
    Series Statement: Reiseabenteuer
    Uniform Title: Transantarctica 〈dt.〉
    Language: German
    Note: Inhalt: Vorwort. - Prolog des Autors. - 1 "The longest road". - 2 Hier herrscht die Antarktis. - 3 Unter der Kapuze. - 4 Im Reich der Todesfallen. - 5 Die katabatische Windfolter. - 6 Schaffen wir es?. - 7 Der Wundervogel. - 8 Die Geisterstadt. - 9 Steger, der Teufelskerl. - 10 Sastrugis, so weit das Auge reicht. - 11 Hier kommen alle Winde von Norden. - 12 Weihnachten auf dem weißen Kontinent. - 13 Victor Wostok. - 14 Der Antarktis-Expreß. - 15 Der große Abstieg. - Epilog. - Anhang.
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  • 5
    Call number: M 18.91935
    In: Ökosystemforschung und Gewässerbewirtschaftung
    Type of Medium: Dissertations
    Pages: 162 Seiten , graphische Darstellungen
    Series Statement: Ökosystemforschung und Gewässerbewirtschaftung 3
    Language: German
    Note: Zugleich: Dissertation, Technische Universität Berlin, 1992
    Location: Upper compact magazine
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  • 6
    Call number: ZSP-SCAR-570-16
    In: National Antarctic Research Report to SCAR, No. 16
    Type of Medium: Series available for loan
    Pages: 99 Seiten , Illustrationen
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 16
    Language: English
    Note: CONTENTS: I. National Committee for Antarctic Research, and National Operating Body. - II. Map of Stations. - Ill. Permanent Observatories, Regular Observations and Long-term Monitoring. - IV. Report on Highlights of Science Activities from Previous Reporting Period (1 Oct. 93 - 31 March 94). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - V. List of Permits and Rationale for Entry into SPAs and SSSIs. - VI. Prospectus of Planned Activities for Coming Reporting Period (1 April 94 - 31 March 95). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VII. Future Activities Planned & Funded (beyond 31 March 95). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VIII. Bibliography. - IX. List of Principal Investigators and Responsible Authorities.
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  • 7
    Monograph available for loan
    Monograph available for loan
    [Erscheinungsort nicht ermittelbar] : [Verlag nicht ermittelbar]
    Call number: AWI P4-19-92238
    Type of Medium: Monograph available for loan
    Pages: 16 Seiten , Illustrationen
    Language: English
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  • 8
    Call number: AWI A5-19-92408
    Description / Table of Contents: In the book "Weather Condition and Helicopter Flights" by G. I. Mazurov and V. N. Nesteruk presented interaction between helicopters and environment, influence of meteorological factors and weather phenomena on the safety of helicopter multipurpose employment, physical nature of the influence of meteorological factors on the flights and the helicopter operation peculiarities in various geographical regions under marginal meteorological conditions are considered. The aerodynamical aspects of the interaction between the main rotor and the atmosphere are studied. Recommendations for further efficiency in the meteorological support of helicopter flight safety are put forward. It is for the first time that the problems of aviation meteorology with reference to helicopter aircraft are summarized in one issue. The book is intended for helicopter pilots, experts in aviation and synoptical meteorology, atmospheric physics, as well as aviation school cadets. It may be employed as a teaching aid for flight personnel classes. The book is useful for wide sections of readers and experts in the adventitious and purpose ful influence of the aircraft on environment and in transportation ecology.
    Type of Medium: Monograph available for loan
    Pages: 253 Seiten , Illustrationen
    ISBN: 5-286-00862-1
    Language: Russian
    Note: In kyrillischer Schrift
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  • 9
    Call number: ZSP-201-93/11
    In: CRREL Report, 93-11
    Description / Table of Contents: A laboratory study of the behavior of snow under shock wave loading and unloading conditions was conducted using a 200-mm-diameter gas gun to generate loading waves in snow samples with initial densities of 100 to 520 kg m-3 at temperatures of -2 to -23 deg C. Stress levels were 2 to 40 MPa. The response of snow to shock wave loading was measured as a function of distance from the impact plane using embedded stress gauges. Large impedance differences between snow and the stress gauges produced complex stress histories. A finite element model, along with a simple analytical model of the experiment, was used to interpret the stress histories. Snow deformation was not affected by initial temperature, but was found to be rate dependent. The initial density of the snow determined its pressure-deformation path. The pressure needed to compact snow to a specific final density increases with decreasing initial density. The release moduli increased nonlinearly from 50 MPa at a snow pressure of about 15 MPa to 2700 MPa at a snow pressure of about 40 MPa.
    Type of Medium: Series available for loan
    Pages: iii, 150 Seiten , Illustrationen
    Series Statement: CRREL Report 93-11
    Language: English
    Note: CONTENTS Preface Introduction Experimental equipment and methods Gas gun Snow target assembly Data acquisition Experimental procedure Measured data Stress histories Snow characterization Data analysis Recommendations Experimental methods Experimental needs Summary Literature cited Appendix A : Stress-time data plots Appendix B: Tabulated stress-time data Abstract
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  • 10
    Call number: ZSP-SCAR-570-14
    In: National Antarctic Research Report to SCAR, No. 14
    Type of Medium: Series available for loan
    Pages: 133 Seiten , Illustrationen
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 14
    Language: English
    Note: CONTENTS: I. National Committee for Antarctic Research, and National Operating Body. - II. Map of Stations. - Ill. Permanent Observatories, Regular Observations and Long-term Monitoring. - IV. Report on Highlights of Science Activities from Previous Reporting Period (1 Oct. 91 - 31 March 92). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - V. List of Permits and Rationale for Entry into SPAs and SSSIs. - VI. Prospectus of Planned Activities for Coming Reporting Period (1 April 92 - 31 March 93). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VII. Future Activities Planned & Funded (beyond 31 March 93). - A. Biology. - B. Geodesy & Geographic Information. - C. Geology. - D. Solid Earth Geophysics. - E. Glaciology. - F. Human Biology & Medicine. - G. Atmospheric Sciences. - H. Logistics. - I. Ocean Physical Sciences (incl. Marine Chemistry). - VIII. Bibliography. - IX. List of Principal Investigators and Responsible Authorities.
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  • 11
    Monograph available for loan
    Monograph available for loan
    Bonn : Federal Ministery for Research and Technology
    Call number: AWI A1-19-92588
    Type of Medium: Monograph available for loan
    Pages: 51 Seiten , Illustrationen
    ISBN: 3881352376
    Language: English
    Note: Contents Preface Introduction The Earth as a global system Basic building blocks Introduction The atmosphere The hydrosphere The cryosphere The geosphere The biosphere Global cycles Introduction The water cycle Bio-geochemical cycles Natural changes Introduction Crucial changes on characteristic time scales The development of civilization and its consequences for the Earth system Signals from a disturbed environment Introduction The changed environment Problems caused by a growing world population The world of tomorrow Introduction Climate models and their limits Living in a greenhouse searching for traces and solutions The sciences being challenged Introduction Guidelines for a program of research into global changes Science and politics take up the challenge: International and national research programs Introduction International efforts Global Change research in Germany Acronyms and Abbreviations Bibliography: Illustrations
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  • 12
    facet.materialart.13
    facet.materialart.13
    [Philadelphia] : American Meteor Society
    Call number: MOP S 7075
    In: Meteoritics
    Type of Medium: 13
    Pages: Seite 247-279 , Tabellen
    Edition: Sonderdruck reprinted from Meteoritics Vol. 1, No. 2, 1954
    Series Statement: Meteoritics Vol. 1, No. 2
    Language: English
    Location: MOP - must be ordered
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  • 13
    Call number: MOP S 12721
    In: Sterne und Weltraum, Jahrgang 30, Nr. 8-9
    Type of Medium: 13
    Pages: Seite 505 - 509 , Illustrationen
    Language: German
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  • 14
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-91/5
    In: CRREL Report, 91-5
    Description / Table of Contents: An analysis of the National Science Foundation's surface vehicle fleet in Antarctica is reported on here. Surface vehicle needs have been determined through interviews of vehicle users, managers and maintainers, and from direct on-site observation. An ideal grouping of vehicle categories is proposed that will address current needs and provide flexibility for the future. Ultimately, recommendations for streamlining and modernizing the NSF Antarctic vehicle fleet are made. Cargo transportation over snow was identified as being in a crisis state. Personnel movement functions for all but traversing are performed adequately at this time, although there is much room for improvement. Brands and models must be selected for some categories of recommended vehicle types. This will naturally follow a more in-depth analysis of candidates and discussions with NSF vehicle managers. A purchasing plan, including a time table, budget, and desired sequence of replacement, must then be formulated and executed.
    Type of Medium: Series available for loan
    Pages: v, 71 Seiten , Illustrationen
    Series Statement: CRREL Report 91-5
    Language: English
    Note: CONTENTS Preface Executive summary Introduction Regional divisions Zone A - rock and ice roads Zone B - local ice Zone C - traverse Zone D - ice edge Zone E - remote field site Zone F - inland station Current transportation needs in Antarctica Future transportation needs Transportation analysis Personnel transport Cargo transport Summary of analysis Recommendations for changes to U.S. vehicle fleet Conclusions and summary of findings Literature cited Appendix A: Age distribution of NSF surface vehicles Abstract
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  • 15
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-91/15
    In: CRREL Report, 91-15
    Description / Table of Contents: An overview is presented of recent activities and results in the use of commercially available short-pulse UHF radar for surveying ice conditions on freshwater bodies. Improvements in radar systems have made it possible to increase ice thickness resolution by as much as one third relative to that in past attempts, and some new signal processing approaches shown here may offer an order of magnitude improvement. Results from airborne surveying are shown in which the varieties of ice character are reflected. Given the lack of ground coupling, one can rely upon a reasonably well-defined wavelet structure for enhanced signal processing and interpretation possibilities. An algorithm is presented that locates returns from interfaces in the presence of noise for a non-minimum delay wavelet. The method performs a simple inversion in the frequency domain, enhanced by a time dependent weight designed to recognize the shape of the wavelet amplitude and phase spectra. Thin ice layers are resolved down to a few centimeters and are distinguished from an ice free condition by means of a matched filter system designed to recognize the interference pattern from parallel interfaces close to one another. The effects and constraints imposed by water layers on wet ice are discussed, as are general attenuation, sloping bottom, and critical angle effects in deeper water. In closing, observations on the problems and prospects of this sort of surveying are offered.
    Type of Medium: Series available for loan
    Pages: v, 31 Seiten , Illustrationen
    Series Statement: CRREL Report 91-15
    Language: English
    Note: Contents Preface Nomenclature Introduction Field surveys Methods and paraphernalia Results Sloping bottom effects and critical angle phenomena Deconvolution and thin layers Well-separated echoes Thin ice layers Thin layers of water Observations Literature cited Abstract
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  • 16
    Monograph available for loan
    Monograph available for loan
    Stockholm : Svenska Sällskapet för Antropologi och Geografi | Hässleholm : Norra Skåne Offset
    Call number: AWI G10-19-93225
    Type of Medium: Monograph available for loan
    Pages: 128 Seiten , Illustrationen
    Series Statement: Ymer / utg. av Svenska Sällskapet för Antropologi och Geografi 110
    Language: Swedish
    Note: In schwedischer Sprache
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  • 17
    Call number: MOP 47868 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 388 Blatt , Illustrationen
    Language: German
    Location: MOP - must be ordered
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  • 18
    Call number: AWI A3-20-93434
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 1
    Type of Medium: Series available for loan
    Pages: 121 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,1
    Language: German
    Note: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
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  • 19
    Monograph available for loan
    Monograph available for loan
    Hamburg : Deutscher Wetterdienst
    Associated volumes
    Call number: MOP 47414(20) / Mitte ; MOP 47414(20) / Mitte
    In: Wetterkundliche Lehrmittel, 20
    Type of Medium: Monograph available for loan
    Pages: 3 Seiten
    Series Statement: Wetterkundliche Lehrmittel Nr. 20
    Language: German
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    Location: MOP - must be ordered
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  • 20
    Call number: MOP 47414(8c) / Mitte ; MOP 47414(8c) / Mitte
    In: Wetterkundliche Lehrmittel, 8c
    Type of Medium: Monograph available for loan
    Pages: 3 Seiten , 3 Baupläne
    Series Statement: Wetterkundliche Lehrmittel Nr. 8c
    Language: German
    Location: MOP - must be ordered
    Location: MOP - must be ordered
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  • 21
    Monograph available for loan
    Monograph available for loan
    [Rockville] : National Oceanic and Atmospheric Administration [u.a]
    Call number: MOP 47484 / Mitte
    Type of Medium: Monograph available for loan
    Pages: Loseblatt-Ausgabe , Illustrationen
    Language: English
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  • 22
    Call number: MOP 47940 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 360 Seiten
    Language: German
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  • 23
    Monograph available for loan
    Monograph available for loan
    Berlin-Buch : Forschungsinstitut für Bioklimatologie
    Call number: MOP 47557 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 23 Seiten
    Language: German
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  • 24
    Call number: PIK M 490-19-93048
    Type of Medium: Monograph available for loan
    Pages: XIII, 577 S , Illustrationen, Diagramme
    Series Statement: Physica 191,1-4
    Language: English
    Location: A 18 - must be ordered
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  • 25
    Call number: PIK M 323-19-93050
    Type of Medium: Monograph available for loan
    Pages: X, 199 Seiten , Diagramme , 24 cm
    ISBN: 3764337338 ((Basel ...) , 0817637338 ((Boston)
    Series Statement: Progress in systems and control theory Vol. 16
    Language: Undetermined
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  • 26
    Monograph available for loan
    Monograph available for loan
    Hamburg : Deutscher Wetterdienst
    Call number: MOP 47414 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 25 Hefte in einer Box , Diverse Datenblätter und Karten (siehe Beschreibung)
    Language: German
    Note: Wolkentafel für Wetterbeobachter auf See Seegangsbilder zur Schätzung der Beaufort-Windstärken nach dem Aussehen der See Schlüsseltafel für die Eintragungen der Wetterbeobachtungen auf See (2 Exemplare) Wetterübersicht-Tabelle Bord-Wetterkarte Nr. 1 (2 Exemplare) Bord-Wetterkarte Nr. 3 (2 Exemplare) Bord-Wetterkarte Nr. 4 (2 Exemplare) Bord-Wetterkarte Nr. 5 (2 Exemplare) Bord-Wetterkarte Nr. 9 (2 Exemplare) Bord-Wetterkarte Nr. 10 (2 Exemplare) Bord-Wetterkarte Nr. 11 (2 Exemplare) Der Kalte Januar 1977 in den USA Der Schneewinter 1968/69 und seine Konkurrenten in der Rückschau auf die vergangenen 5 Jahrzehnte Die Nordseeorkan-Wetterlage von 16./17. Februar 1962
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  • 27
    Monograph available for loan
    Monograph available for loan
    [Hamburg] : Deutscher Wetterdienst
    Associated volumes
    Call number: MOP 47414(9b) / Mitte ; MOP 47414(9b) / Mitte
    In: Wetterkundliche Lehrmittel, 9b
    Type of Medium: Monograph available for loan
    Pages: 10 Seiten , Illustrationen
    Series Statement: Wetterkundliche Lehrmittel Nr. 9b
    Language: German
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  • 28
    Call number: MOP 47414(6c, d) / Mitte ; MOP 47414(6c, d) / Mitte
    In: Wetterkundliche Lehrmittel, 6c, d
    Type of Medium: Monograph available for loan
    Pages: 6 Seiten , Illustrationen
    Series Statement: Wetterkundliche Lehrmittel Nr. 6c, d
    Language: German
    Location: MOP - must be ordered
    Location: MOP - must be ordered
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  • 29
    Monograph available for loan
    Monograph available for loan
    Hamburg : Meteorologisches Amt für Nordwestdeutschland
    Call number: MOP 47414(A) / Mitte
    Type of Medium: Monograph available for loan
    Pages: 35 Seiten , Illustrationen
    Language: German
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  • 30
    Call number: MOP 47852 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
    Note: Diplomarbeit, Humboldt-Universität zu Berlin, 1993
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  • 31
    Call number: MOP 47707 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
    Note: Diplomarbeit, Humboldt-Universität zu Berlin, Fachbereich Physik, Meteorologisches Institut eingereicht von Bodo Wichura geboren am 23.12.1965 in Potsdam, Betreuer: Dipl.-Met. S.H. Richter
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  • 32
    Monograph available for loan
    Monograph available for loan
    Freiburg : Lingg Druck
    Call number: MOP 47855 / Mitte
    Type of Medium: Monograph available for loan
    Pages: VII, 164 Seiten , Illustrationen
    Language: German
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  • 33
    Series available for loan
    Series available for loan
    Offenbach am Main : Deutscher Wetterdienst
    Associated volumes
    Call number: MOP 47697/6 / Mitte
    In: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt, Nr. 6
    Type of Medium: Series available for loan
    Series Statement: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt 6
    Language: German
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  • 34
    Series available for loan
    Series available for loan
    Offenbach am Main : Deutscher Wetterdienst
    Associated volumes
    Call number: MOP 47697/9 / Mitte
    In: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt, Nr. 9
    Type of Medium: Series available for loan
    Series Statement: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt 9
    Language: German
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  • 35
    Monograph available for loan
    Monograph available for loan
    Praha : Český Hydrometeorologický Ústav
    Call number: MOP 42912 / Mitte
    Type of Medium: Monograph available for loan
    Pages: Getr. Zählung
    ISBN: 80-900206-4-X
    Language: English
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  • 36
    Series available for loan
    Series available for loan
    Pasay City, Philippines : Typhoon Committee Secretariat
    Associated volumes
    Call number: MOP 46950(1991) / Mitte
    In: ESCAP/WMO Typhoon Committee annual review, 1991
    Type of Medium: Series available for loan
    Series Statement: ESCAP/WMO Typhoon Committee annual review 1991
    Language: English
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  • 37
    Call number: MOP 47697/3 / Mitte
    In: Verifikationsbericht / Deutscher Wetterdienst, Abteilung Synoptische Meteorologie, Nr. 3
    Type of Medium: Series available for loan
    Series Statement: Verifikationsbericht / Deutscher Wetterdienst, Abteilung Synoptische Meteorologie 3
    Language: German
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  • 38
    Call number: MOP 47697/5 / Mitte
    In: Verifikationsbericht / Deutscher Wetterdienst, Abteilung Synoptische Meteorologie, Nr. 5
    Type of Medium: Series available for loan
    Series Statement: Verifikationsbericht / Deutscher Wetterdienst, Abteilung Synoptische Meteorologie 5
    Language: German
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  • 39
    Monograph available for loan
    Monograph available for loan
    Leipzig : Barth
    Call number: 6148
    Type of Medium: Monograph available for loan
    Pages: VIII, 307 Seiten , Illustrationen
    Uniform Title: An introduction to crystal chemistry 〈dt.〉
    Language: German
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  • 40
    Call number: AWI Bio-21-94350
    In: Bibliotheca diatomologica, 30
    Type of Medium: Monograph available for loan
    Pages: 241 Seiten , Illustrationen , 23 cm
    ISBN: 3443570216 (kart.)
    Series Statement: Bibliotheca diatomologica 30
    Language: German
    Note: INHALT Summary Verzeichnis der Abbildungen Verzeichnis der Tabellen Erläuterung der verwendeten Abkürzungen 1. EINLEITUNG 2. UNTERSUCHUNGSGEBIETE 2.1 Oberbayerische Alpenrandseen 2.2 Maarseen der Eifel 2.3 Hessische Baggerseen 2.4 Sonstige Seen 3. MATERIAL UND METHODEN 3.1 Probenahme und Substrat 3.2 Präparation und Auszählung 3.3 Chemisch-physikalische Parameter 3.4 Bestimmung der trophischen Kenngrößen 3.4.1 Toleranzen und Artengruppen 3.4.2 Präferenzen und Indikationssystem 3.5 Weitere statistische Verfahren und Kenngrößen der Gesellschaftsstruktur 4. ERGEBNISSE 4.1 Trophie-Indikation anhand von Aufwuchs-Diatomeen 4.1.1 Gesellschaftsstrukturen und trophischer Status 4.1.2 Trophische Valenzen und Artengruppen 4.1.3 Die Diatomeenflora der Seen: Vorkommen und Autökologie 4.1.4 Trophische Charakterisierung der Alpenrandseen anhand der Diatomeenflora Anwendung des Indikationssystems 4.1.5 Diversität und Trophie 4.2 Substrateinfluß 4.2.1 Gesellschaften natürlicher Substrate 4.2.2 Gesellschaften künstlicher Substrate 4.3 Bemerkungen zur Saisonalität: Der Aspektwechsel in den Alpenrandseen 5. DISKUSSION 6. ZUSAMMENFASSUNG 7. LITERATUR 8. ARTENREGISTER
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  • 41
    Call number: AWI Bio-21-94356
    Type of Medium: Monograph available for loan
    Pages: 308 Seiten , Illustrationen
    Series Statement: Hoppea 52.1992
    Language: German
    Note: Inhalt Vorwort 1. Allgemeines 1.1 Abgrenzungsmerkmale in der Gattung Pinnularia 1.2 Ökologische Bemerkungen 1.3 Anton Mayers Pinnularia-Bearbeitung 2. Spezieller Teil 2.1 Vorbemerkungen 2.2 Schalenmorphologie und Terminologie 2.3 Von Mayer beschriebene Pinnularia-Taxa 2.4 Gruppierung der Taxa 2.5 Erläuterungen zu den Beschreibungen der Taxa 2.6 Erläuterungen zum Bestimmungsschlüssel der Arten, wichtigen Varietäten und Morphotypen 2.7 Bestimmungsschlüssel 2.8 Beschreibungen der Taxa 3. Bemerkungen zu den Fundorten und Tafeln 3.1 Fundorte der Proben von Anton Mayer und ihre Diatomeenassoziationen 3.2 Die 80 Tafeln von Anton Mayer 3.3 Die Tafeln mit Mikrophotographien 4. Literatur 5. Tafeln 6. Index der Taxa und wichtigsten Synonyme
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  • 42
    Call number: AWI G4-22-94968
    Type of Medium: Monograph available for loan
    Pages: x, 532 Seiten , Illustrationen , 23 cm
    ISBN: 0-662-18742-3
    Series Statement: NHRI symposium No. 6
    Language: English
    Note: TABLE OF CONTENTS FOREWORD PREFACE INTRODUCTION SECTION 1: GENERAL PAPERS Case Study of a Grounded Jam; Restigouche River, New Brunswick / by S. Beltaos and B.C. Burrell Water Balance and Geochemistry Studies in a Tundra Watershed, District of Keewatin, Northwest Territories / by G.G. Bursey, T.W.D. Edwards and S.K. Frape River Icing Mounds: a Winter Water Source on the Eastern North Slope of Alaska / by E.F. Chacho, C.M. Collins, A.J. Delaney and S.A. Arcone Geochemical Evolution of Water in a Continental High Boreal Wetland Basin: Preliminary Results / by D. Craig A Physical Model of Ice Overthn.ist during the Break-Up of Intact River-Ice Covers / by M.N. Demuth and T.D. Prowse Seasonal Changes in the Hydrochemistry of Land Drainage: Colour Lake Catchment, Axel Heiberg Island, N.W.T. / by M. English, S. Schiff, M. Ecclestone, W.P. Adams, M. Hinton, L. Pezzutto, R. Elgood, C. Allan and D. Pierson Shape, Length and Flow· Conditions of Conduits at South Cascade Glacier, Washington State, U.S.A. / by A.G. Fountain CO2-Rich Ground Waters of the Flat River Valley, N.W.T. / by S.M. Hamilton, F.A. Michel and C.W. Jefferson Regional Snow Ablation in the Alaskan Arctic / by L.D. Hinzman, D.L. Kane and R.E. Giec Regionalization of Low Flows in Yukon Territory / by J.R. Janowicz Discharge Regimes of a Glacierized Basin, Slims River, Yukon / by P.G. Johnson Pulses in Glacier Discharge: Indicators of the Internal Drainage System of Glaciers / by P.G. Johnson Drainage of an Ice-Dammed Lake, Kaskawulsh Glacier Basin, Yukon / by J.N. Kasper and P.G. Johnson On Areal Distribution. of Snowcover in a Mountainous Area / by A. Killingtveit and K. Sand Hydrogeochemical Aspects of Two Selected Sites in a Fringe Zone of Discontinuous Permafrost / by Y.T.J. Kwong, D. Craig and M. Griffin Ice-Cover Growth and Freeze-Out of Solutes in a Mackenzie Delta Lake / by L.F.W. Lesack, P. Marsh and R.E. Hecky Hydrological Processes in a Small Catchment Containing a Perennial Snowbank, Melville Island, N.W.T. / by A.G. Lewkowicz and K.L. Young On Modelling Surface Meltwater Discharge from Arctic and Alpine Glaciers / by D.S. Munro A High Arctic Occurrence of Seasonal Frost Mounds / by W.H. Pollard Relationships between Snow Chemistry and Blowing Snow: Initial Findings / by J.W. Pomeroy, T.D. Davies and M. Tranter Peatlands of the Lake Melville Coastal Plain, Labrador / by J.S. Price, D.A. Maloney and F.G. Downey Constraints on the Origin of Acidity in Colour Lake, Axel Heiberg Island (79°25'N) / by S. Schiff, M. English, M. Ecclestone, R. Elgood, M. Hinton and L. Pezzutto Longitudinal Dispersion in the Ice-Covered Athabasca River / by G. Van Der Vinne and D. Andres Economic Impact of River Ice Jams in Canada / by G. Van Der Vinne, T.D. Prowse and D. Andres Estimation of Mass-Balance and Run-Off Component of Urumqi Glacier No. I from Water-Balance Analysis / by Z. Yang SECTION 2: MODELLING Interactive Modelling of Cold Regions Watersheds with SSARR / by E.A. Cassell and T. Pangburn Estimates of Evaporation in the Yukon and Northwest Territories / by J. Haas A Basin Water-Storage Model to Forecast Columbia River Discharge / by W. Tangborn Preliminary Findings from Experiments on Frazil and Anchor Ice in a Circular Flume / by G. Tsang and B. Trapp On Computer Simulation of Ice Motion in Rivers / by O.G. Vinogradov, A. Springer and P. Wierzba SECTION 3: OTHER CONTRIBUTIONS Transformation of Heavy Metals under Tidal Flows in the Severnaya Dvina Estuary / by V.F. Brekhovskikh, A.N. Malutin and M.A. Mordasov Northern River: BOD-DO Model / by V.F. Brekhovskikh and G.V. Volpian Water Storage in Alpine Glaciers (Abstract) / by M.M. Brugman Snowmelt Infiltration into Frozen Soil at Sites in the Discontinuous Permafrost Zone Near Mayo, Yukon Territory / by C.R. Bum Use of Periphyton Indices as a Biological Measure of Water Quality in Small Rivers / by E.A. Goncharevich Yukon and Northwest Territories Ground-Water Data Base / by P. Hardisty, V. Schilder, T. Dabrowski and J. Wells Some Aspects of Glacier Hydrology in China / by X. Hu and Z. Yang Modelled Estimates of Changes in the Water Balance of Forested Northern River Basins / by Yu.G. Motovilov and N.A. Nazarov Study of Surface Water Quality in the Northern Region Subject to Pollution / by A.N. Shammasov Response of Riverine and Lacustrine Biocenoses to Human Impact / by N.S. Zolotareva and M.A. Mordasov APPENDIX A: LIST OF PARTICIPANTS
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  • 43
    Series available for loan
    Series available for loan
    Boulder, Colo. : The Geological Society of America
    Associated volumes
    Call number: S 90.0006(174)
    In: Memoir / The Geological Society of America, 174
    Type of Medium: Series available for loan
    Pages: XI, 414 Seiten , Illustrationen, graphische Darstellungen, Karten
    ISBN: 0-8137-1174-6
    Series Statement: Memoir / The Geological Society of America 174
    Language: English
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  • 44
    Monograph available for loan
    Monograph available for loan
    Washington, DC : Mineralogical Society of America
    Call number: MR 22.94990
    Type of Medium: Monograph available for loan
    Pages: XII, 545 Seiten , Illustrationen, graphische Darstellungen
    Edition: 2. printing with minor revisions
    ISBN: 0-03-085155-6
    Language: English
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  • 45
    Call number: 10.1144/GSL.SP.1990.053.01.23 (e-book)
    In: Special publications / the Geological Society, London, No. 53
    Description / Table of Contents: This volume examines the processes responsible for sedimentation in modern glacimarine environments, and how such modern studies can be used as analogues in the interpretation of ancient glacimarine sequences. Sediments released from glaciers grounded in tidewater, floating ice shelves, ice tongues, icebergs and sea ice form complex sequences governed by glaciological, oceanographic, sedimentary and biogenic controls. Ten per cent of the world’s oceans and epicontinental seas contain such active glacimarine environments, but during Cenozoic glacial periods this area was doubled. This book will, therefore, be of relevance to all scientists concerned with high and middle latitude marine environments. The early chapters are concerned largely with processes of sedimentation in modern glacimarine environments; examples are drawn from Alaska, the Canadian Arctic, Svalbard and Antarctica. Studies of ancient sequences, both Cenzoic and pre-Cenozoic, from the Barents Sea, Greenland, Sweden, Alaska and the northwest European continental shelf, form the latter part of the book.
    Type of Medium: 12
    Pages: 1 Online-Ressource (VII, 423 Seiten) , Illustrationen
    Edition: First published
    ISBN: 0-903317-54-0
    Series Statement: Special publications / the Geological Society, London 53
    Language: English
    Note: Contents Julian A. Dowdeswell and James D. Scourse: Preface --- Julian A. Dowdeswell and James D. Scourse: On the description and modelling of glacimarine sediments and sedimentation / Geological Society, London, Special Publications, 53:1-13, doi:10.1144/GSL.SP.1990.053.01.01 --- G. S. Boulton: Sedimentary and sea level changes during glacial cycles and their control on glacimarine facies architecture / Geological Society, London, Special Publications, 53:15-52, doi:10.1144/GSL.SP.1990.053.01.02 --- Ross D. Powell: Glacimarine processes at grounding-line fans and their growth to ice-contact deltas / Geological Society, London, Special Publications, 53:53-73, doi:10.1144/GSL.SP.1990.053.01.03 --- Ellen A. Cowan and Ross D. Powell: Suspended sediment transport and deposition of cyclically interlaminated sediment in a temperate glacial fjord, Alaska, U.S.A. / Geological Society, London, Special Publications, 53:75-89, doi:10.1144/GSL.SP.1990.053.01.04 --- Eugene W. Domack: Laminated terrigenous sediments from the Antarctic Peninsula: the role of subglacial and marine processes / Geological Society, London, Special Publications, 53:91-103, doi:10.1144/GSL.SP.1990.053.01.05 --- Robert Gilbert: Rafting in glacimarine environments / Geological Society, London, Special Publications, 53:105-120, doi:10.1144/GSL.SP.1990.053.01.06 --- Julian A. Dowdeswell and Tavi Murray: Modelling rates of sedimentation from icebergs / Geological Society, London, Special Publications, 53:121-137, doi:10.1144/GSL.SP.1990.053.01.07 --- Paul R. Carlson, Terry R. Bruns, and Michael A. Fisher: Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska / Geological Society, London, Special Publications, 53:139-153, doi:10.1144/GSL.SP.1990.053.01.08 --- Alec E. Aitken: Fossilization potential of Arctic fjord and continental shelf benthic macrofaunas / Geological Society, London, Special Publications, 53:155-176, doi:10.1144/GSL.SP.1990.053.01.09 --- James P. M. Syvitski, K. William G. LeBlanc, and R. E. Cranston: The flux and preservation of organic carbon in Baffin Island fjords / Geological Society, London, Special Publications, 53:177-199, doi:10.1144/GSL.SP.1990.053.01.10 --- Ian J. Fairchild and Baruch Spiro: Carbonate minerals in glacial sediments: geochemical clues to palaeoenvironment / Geological Society, London, Special Publications, 53:201-216, doi:10.1144/GSL.SP.1990.053.01.11 --- C. M. T. Woodworth-Lynas and J. Y. Guigné: Iceberg scours in the geological record: examples from glacial Lake Agassiz / Geological Society, London, Special Publications, 53:217-233, doi:10.1144/GSL.SP.1990.053.01.12 --- Jens Bischof, Joachim Koch, Michaela Kubisch, Robert F. Spielhagen, and Jörn Thiede: Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6 / Geological Society, London, Special Publications, 53:235-251, doi:10.1144/GSL.SP.1990.053.01.13 --- Anders Solheim, Lars Russwurm, Anders Elverhøi, and Mona Nyland Berg: Glacial geomorphic features in the northern Barents Sea: direct evidence for grounded ice and implications for the pattern of deglaciation and late glacial sedimentation / Geological Society, London, Special Publications, 53:253-268, doi:10.1144/GSL.SP.1990.053.01.14 --- Tore O. Vorren, Erland Lebesbye, and Kjell B. Larsen: Geometry and genesis of the glacigenic sediments in the southern Barents Sea / Geological Society, London, Special Publications, 53:269-288, doi:10.1144/GSL.SP.1990.053.01.15 --- D. Huddart and J. D. Peacock: Early Holocene morainal bank sedimentology and marine ecology, Skjoldungebrae gorge, North Scoresby Land, East Greenland / Geological Society, London, Special Publications, 53:289-305, doi:10.1144/GSL.SP.1990.053.01.16 --- Rodney L. Stevens: Proximal and distal glacimarine deposits in southwestern Sweden: contrasts in sedimentation / Geological Society, London, Special Publications, 53:307-316, doi:10.1144/GSL.SP.1990.053.01.17 --- A. R. Lord: The Pleistocene—Holocene transition in Southwestern Sweden and the recognition of deglaciation effects in adjacent seas / Geological Society, London, Special Publications, 53:317-328, doi:10.1144/GSL.SP.1990.053.01.18 --- J. D. Scourse, W. E. N. Austin, R. M. Bateman, J. A. Catt, C. D. R. Evans, J. E. Robinson, and J. R. Young: Sedimentology and micropalaeontology of glacimarine sediments from the Central and Southwestern Celtic Sea / Geological Society, London, Special Publications, 53:329-347, doi:10.1144/GSL.SP.1990.053.01.19 --- M. S. Stoker: Glacially-influenced sedimentation on the Hebridean slope, northwestern United Kingdom continental margin / Geological Society, London, Special Publications, 53:349-362, doi:10.1144/GSL.SP.1990.053.01.20 --- Carolyn H. Eyles and Martin B. Lagoe: Sedimentation patterns and facies geometries on a temperate glacially-influenced continental shelf: the Yakataga Formation, Middleton Island, Alaska / Geological Society, London, Special Publications, 53:363-386, doi:10.1144/GSL.SP.1990.053.01.21 --- A. C. M. Moncrieff and M. J. Hambrey: Marginal-marine glacial sedimentation in the late Precambrian succession of East Greenland / Geological Society, London, Special Publications, 53:387-410, doi:10.1144/GSL.SP.1990.053.01.22
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  • 46
    Call number: AWI G3-22-94975
    Type of Medium: Series available for loan
    Pages: XIII, 263 Seiten , Illustrationen , 1 Karte
    Edition: First edition 1983, reprinted edition 1993
    Series Statement: Guidebook / Division of Geological & Geophysical Surveys, Department of Natural Resources, State of Alaska 1
    Language: English
    Note: Kartenbeilage unter dem Titel: Physiographic map and field trip localities of the Upper Cook Inlet area, Alaska / compiled by R. D. Reger and R. G. Updike (1982) , CONTENTS Introduction General statement Organization and acknowledgments Selected references Middle Tanana River valley R&sum& of the permafrost and Quaternary geology Road log and locality descriptions Selected references Delta River area. Alaska Range R&sum& of the permafrost and Quaternary geology Road log and locality description Trans-Alaska Pipeline System Thawing problems Construction modes Conventional burial Special burial Conventional elevated and anchor support Selected references Copper River basin Rèsumè of Quaternary geology Road log and locality description Gakona section Richardson Highway Simpson Hill roadcut Copper River Bluff section Glenn Highway Selected references Overview of the Matanuska Glacier Selected references Upper Cook Inlet region and the Matanuska Valley Introduction Physiography and geology Upper Cook Inlet region Matanuska Valley Climate Vegetation. Soils Rèsumè of Quaternary geology General statement Late Pliocene-early Pleistocene glaciations and interglaciations Mt. Susitna Glaciation Mt. Susitna-Caribou Hills interglaciation Caribou Hills Glaciation Late Pleistocene glaciations and interglaciations Caribou Hills-Eklutna interglaciation Eklutna Glaciation Eklutna-Knik interglaciation Knik Glaciation Knik-Naptowne nonglacial interval Naptowne Glaciation Early Holocene Glaciations Middle to Late Holocene events Alaskan Glaciation Tustumena advances Tunnel advances Other events Road log and locality descriptions Selected references Appendix A - Radiocarbon dates related to late Quaternary events in the Upper Cook Inlet region, Alaska
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  • 47
    Call number: MR 22.94995
    Type of Medium: Monograph available for loan
    Pages: 195 Seiten , Illustrationen, graphische Darstellungen, Karten
    Edition: First edition
    ISBN: 7-116-01128-5
    Language: English
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  • 48
    Call number: AWI G5-23-95000
    Type of Medium: Monograph available for loan
    Pages: xii, 169 Seiten , Illustrationen
    Language: English
    Note: Masterarbeit, Queen's University (Kingston, Ont.), 1990 , TABLE OF CONTENTS ABSTRACT ACKOWLEDGEMENTS LIST OF FIGURES LIST OF TABLES CHAPTER 1: INTRODUCTION 1.1 Purpose of Study 1.2 Site Description 1.2.1 Climate 1.2.2 Geology 1.2.3 Late Cenozoic Evolution of the Queen Elizabeth Islands 1.2.4 Origin of Colour Lake 1.2.5 Lake and Basin Morphometry and Morphology CHAPTER 2: LITERATURE REVIEW 2.1 General Arctic Limnology 2.1.1 Thermal Regimes and Circulation 2.1.2 Biological Limnology 2.2 Sedimentation in Arctic Lakes 2.2.1 Sedimentary Processes 2.2.2 Deposits 2.3 Phycology and Paleophycology of High Arctic Lakes CHAPTER 3: METHODS 3.1 Basin Factors 3.1.1 Weather 3.1.2 Stream Sampling 3.1.3 Snowmelt, Depth of Ground Thaw, and Soil parameters 3.1.4 Measurement of Mass Wasting 3.2 General Limnology 3.3 Sediment Sampling and Analysis 3.3.1 Sediment Collection 3.3.2 Sediment Analysis 3.3.3 Microfossil Analysis 3.3.3.1 Diatoms and Chrysophytes 3.3.3.2 Chironomids CHAPTER 4: RESULTS 4.1 Basin Factors 4.1.1 Weather 4.1.2 Stream Discharge and Water Quality 4.1.3 Snow, Active Layer Thickness, and Soil Parameters 4.1.4 Mass Wasting 4.1.4.1 Gelifluction survey 4.1.4.2 Mudflows and other Observations 4. 2 Limnology 4.2.1 General Limnology - 1987 4.2.1.1 Lake Temperature 4.2.1.2 Lake Chemistry 4.2.1.3 Water Stage 4.2.1.4 Suspended Sediment 4.2.1.5 Algae 4.2.2 General Limnology - 1988 4.3 Sedimentology 4.3.1 Surficial Sediments 4.3.1.1 Structure and Grain Size 4.3.1.2 Organic Matter 4.3.1.3 Microfossils 4.3.2 Long Cores 4.3.2.1 Structure and Grain Size 4.3.2.2 Organic Matter 4.3.2.3 Dating 4.3.2.4 Microfossils CHAPTER 5: DISCUSSION 5.1 Basin Factors 5.1.1 Inflows 5.1.2 Mass Wasting 5.1.2.1 Rates of Soil Movement 5.1.2.2 Gelifluction as a Sediment Source 5.2 Limnology 5.3 Sedimentology 5.3.1 Recent Sedimentary Environment 5.3.2 Late Holocene Sedimentary Environment 5.3.2.1 Signal from Alluvial Fan River 5.3.2.2 Signal from Gelifluction 5.3.2.3 Signal from Lake Ice Cover 5.2.3.4 General Sedimentology 5.2.3.5 Paleophycology 5.3.3 Modelling Colour Lake Sedimentology . CHAPTER 6: CONCLUSIONS REFERENCES APPENDIX A: CORRECTION OF TALL BURIED STAKES APPENDIX B: TEST OF EFFECT OF IGNITION BEFORE SEDIGRAPHING APPENDIX C: DIATOM SPECIES LIST APPENDIX D: SEDIMENT VOLUME IN A SMALL MUDFLOW APPENDIX E: ICE RECORD VITA
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  • 49
    Monograph available for loan
    Monograph available for loan
    St. John's : Geological Association of Canada
    Call number: MR 24.95645
    Type of Medium: Monograph available for loan
    Pages: v, 194 Seiten , Illustrationen , 28 cm
    Edition: Second printing
    ISBN: 091921634X , 0-919216-34-X
    Series Statement: Geoscience Canada reprint series 3
    Language: English
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  • 50
    Call number: MR 24.95646
    Type of Medium: Monograph available for loan
    Pages: 27 Seiten , Illustrationen
    ISBN: 9171469311
    Series Statement: Report / University of Stockholm, Department of Quaternary Research 20
    Language: English
    Note: Zugl.: Stockholm, Univ., Diss., 1991
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  • 51
    Monograph available for loan
    Monograph available for loan
    Copenhagen : [Verlag nicht ermittelbar]
    Call number: AWI G7-19-92326
    Type of Medium: Monograph available for loan
    Pages: 59 Seiten , Illustrationen
    Language: English
    Note: CONTENTS: Report on the 1995 activities of GRIP Operation Center (GOC). - Objective. - Kangerlussuaq (Søndre Strømfjord). - Preparation of field season. - Start of field season. - Communication. - Medevac. - Acknowledgement. - 1995 Field Season, Diary. - Maintenance / Logistics. - Bulk supplies. - Table of C130 flights. - Table of Twin Otter flights. - List of participants. - GRIP 1995 sub programs. - GRIP summaries 1989-1995. - GOC documentation 1989-1994. - Sitreps. - Daily reports from DOME GRIP. - Map of Northern Greenland. - List of GRIP addresses. - Tasks of GOC.
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  • 52
    Dissertations
    Dissertations
    Kassel : Fachgebiet Ökochemie der Gesamthochschule Kassel-Universität
    Call number: AWI Bio-18-91639
    Type of Medium: Dissertations
    Pages: 244 Seiten , Illustrationen, graphische Darstellungen
    Language: German
    Note: Kassel, Gesamthochsch., Diss., 1993 , Inhaltsverzeichnis: 1 Einleitung und Problemstellung. - 2 Ökologie der Algen. - 2.1 Lebensraum. - 2.1.1 Wasser. - 2.1.2 Litoral. - 2.1.3 Luft. - 2.1.4 Boden. - 2.1.5 Technische Systeme. - 2.2 Algen als aktive Veränderer ihres Biotops. - 2.2.1 Eutrophierung. - 2.2.2 Algenausscheidungen. - 3 Selbstregulierende Entsorgungsysteme. - 3.1 Natürliche Selbstreinigungsvorgänge. - 3.1.1 Technische Nutzung von Selbstreinigungsvorgängen. - 3.2 Nutzung von Algen in der Abwasserreinigung. - 3.3 Biologische Wasseranalyse. - 3.3.1 Algen als Indikatoren der organischen Belastung. - 4 Material und Methoden. - 4.1 Auswahl der untersuchten Anlagen. - 4.1.1 Anlagenbeschreibung. - 4.2 Beprobungszeit und Probenahmestellen. - 4.2.1 Beprobungstermine. - 4.2.2 Bezeichnung der Probenahmestellen. - 4.3 Untersuchungsmethoden. - 4.3.1 Algenproben. - 4.3.1.1 Algenkulturen. - 4.3.1.2 Artenbestimmung. - 4.3.2 Bodenproben. - 4.3.3 Abwasserproben. - 5 Die Algenvegetation der untersuchten Anlagen. - 5.1 Wurzelraumanlage in Vlotho (A). - 5.2 Versuchsanlage Witzenhausen (B). - 5.3 Wurzelraumanlage in Bünde (C). - 5.4 Anlage Beberbeck (D). - 5.5 Sonstige Biotope. - 6 Veränderung der Algenzönosen entlang der Entsorgungskette. - 6.1 Artendiversität entlang der Entsorgungskette. - 6.1.1 Anlage Vlotho. - 6.1.2 Anlage Witzenhausen. - 6.1.3 Anlage Bünde. - 6.1.4 Anlage Beberbeck. - 6.2 Änderungen durch die technische Ausführung des Biotops. - 6.2.1 Anlage Vlotho. - 6.2.1.1 Ablaufbereich Vlotho. - 6.2.2 Anlage Bünde. - 6.2.2.1 Zulaufbereich Bünde. - 6.2.2.2 Ablaufbereich Bünde. - 6.2.3 Anlage Beberbeck. - 6.2.3.1 Zulaufbereich Beberbeck. - 6.2.3.2 Ablaufbereich Beberbeck. - 7 Vergleich der Teilbiotope ähnlicher technischer Ausführung. - 7.1 Anlagenbeete. - 7.1.1 Bodenalgenkulturen. - 7.1.1.1 Einfluß der organischen Belastung auf die Bodenalgenflora. - 7.1.1.2 Einfluß der Beprobungstiefe auf die Bodenalgenflora. - 7.1.2 Beetoberflächen. - 7.1.2.1 Einfluß der organischen Belastung auf die Algenflora des Beetezulaufes. - 7.2 Offene Wasserkörper. - 7.2.1 Fließwasserstrecken. - 7.2.2 Stehende Wasserkörper. - 8 Ökologische Ansprüche der gefundenen Algenarten. - 8.1 Auswirkungen der organischen Belastung und der technischen Parameter auf die Algenflora. - 8.2 Einschätzung von Leistungen der Algen in Kläranlagen. - 9 Zusammenfassung. - 10 Literaturverzeichnis. - 11 Anhang. - Anhang 1 - Schematische Fließdiagramme der Anlagen A-D. - Anhang 2 - Darstellung der gefundenen Algenarten. - Anhang 3 - Tabellenverzeichnis. - Anhang 4 - Abbildungsverzeichnis. - Anhang 5 - Photographische Biotop- und Algendarstellung.
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  • 53
    Monograph available for loan
    Monograph available for loan
    Beirut : Librairie du Liban
    Call number: 1.2/M 18.91851
    Type of Medium: Monograph available for loan
    Pages: 1006 Seiten , Illustrationen
    ISBN: 9789953100005
    Language: English , Arabic
    Note: Text in Englisch und Arabisch
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  • 54
    Call number: AWI Bio-18-91955
    Type of Medium: Monograph available for loan
    Pages: 85 Seiten , Illustrationen
    Edition: autorisierte deutsche Übersetzung der Originalausgabe
    ISBN: 333460439X (kart.) , 3827406366
    Uniform Title: Textbook of pollen analysis 〈dt.〉
    Language: German
    Note: Inhaltsverzeichnis: Vorwort. - Welche Pflanze? Bestimmungsschlüssel. - Tabelle 1. Skulpturtypen. - Hauptschlüssel. - Tabelle A. Vesiculate (Pinaceae und Podocarpaceae). - Tabelle B. Zusammengesetzte Pollenkörner (PK). - Tabelle B1. Dyaden. - Tabelle B2. Tetraden. - Tabelle B3. Polyaden. - Tabelle C. Polyedrische PK. - Tabelle D. Bilaterale PK. - Tabelle E. Subtetraedrische Sporen. - Tabelle F. Rotationsellipsoide (oder ovate) PK: Hauptschlüssel. - Tabelle F1. Polyplicate (Ephedra). - Tabelle F2. Inaperturate. - Tabelle F3. Trichotomocolpate. - Tabelle F4. Monocolpate. - Tabelle F5. Monoporate. - Tabelle F6. Dicolpate. - Tabelle F7. Tricolpate. Hauptschlüssel zu den Subsektionen. - Tabelle F7.1. Tricolpate, psilat. - Tabelle F7.2. Tricolpate, scabrat. - Tabelle F7.3. Tricolpate, echinat. - Tabelle F7.4. Tricolpate, rugulat-striat. - Tabelle F7.5. Tricolpate, suprareticulat. - Tabelle F7.6. Tricolpate, perreticulat. - Tabelle F7.7. Tricolpate, intectat (clavat). - Tabelle F8. Stephanocolpate. - Tabelle F9. Pericolpate. - Tabelle F10. Dicolporate. - Tabelle F11. Tricolporate: Hauptschlüssel zu den Subsektionen. - Tabelle F11.1 Tricolporate, psilat-scabrat. - Tabelle F11.2. Tricolporate, echinat. - Tabelle F11.3. Tricolporate, striat-rugula. - Tabelle F11.4. Tricolporate, suprareticulat-foveolat. - Tabelle F11.5. Tricolporate, perreticulat-frustillat. - Tabelle F12. Stephanocolporate. - Tabelle F13. Pericolporate. - Tabelle F14. Diporate. - Tabelle F15. Triporate. - Tabelle F16. Stephanoporate. - Tabelle F17. Periporate: Hauptschlüssel zu den Subsektionen. - Tabelle F17.1. Periporate, verrucat-echinat. - Tabelle F17.2. Periporate, vermiculat-rugulat oder reticulat. - Tabelle F17.3. Periporate, psilat-scabrat. - Tabelle F18. Syncolpate. - Tabelle F19. Heterocolpate. - Tabelle F20. Fenestrate. - Caryophyllaceae (periporate). - Cyperaceae. - Gramineae. - Plantaginaceae. - Rosaceae. - Morphologisches Glossar. - Literatur. - Register der Pflanzennamen. , Dublette der Martin-Luther-Universität Halle-Wittenberg
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  • 55
    Call number: AWI G7-18-92027
    Description / Table of Contents: The book by M. S. Krass and V. G. Merzlikin "The Radiative Thermophysics of Snow and Ice"- the new point of view with usage of methods of light-scattering media theory is realized as working of theory of radiative thermophysics of snow and ice. The statements of new class of thermophysics problems are presented, snow and ice are supposed as light-scattering media with volume reflection and absorption. For the first time this method have helped to explain some noted effects of metamorphic evolution in upper active layer of snow-ice medium and to correct lows of their mass-energy exchange. Optical and physical models for different kinds of snow and ice were studied. The models take into account snow and ice-atmosphere interaction by means of convective heat transfer, solar flux and long-wavelength reradiation, and also phase transitions in medium and at boundaries. The model realizations of various native cases of forming heat regime within snow-ice covers are considered. For all that the way of practical use of theoretical results is shown. The range of the problems makes the book to be interesting for experts in glaciology and planetology, physicists, mathematicians, geographers, climatologists.
    Type of Medium: Monograph available for loan
    Pages: 260 Seiten , Illustrationen
    ISBN: 5-286-00243-9
    Language: Russian
    Note: Contents: Introduction. - Legend. - Chapter 1. Basic Directions of Snow and Ice Thermal Physics Study. - 1. Analysis of traditional theoretical and experimental methods. - 2. New methodological point of view on the thermal physics of snow-ice masses. - 3. Conditions of initial data. - 4. Complex heat transfer within the system "space-atmosphere-earth surface". - 5. Optical and thermophysical properties of snow and ice. - Chapter 2. General Statement of the Problem of Radiative Thermophysics. - 1. Absorption and scattering of light in optical-heterogeneous media. - 2. Optical phenomenological models and parameters of radiation transfer in light-scattering media (LSM). - 3. Distribution of absorbed radiation flux in the unlimited layer of LSM. - 4. Optical models and snow and ice characteristics as LSM ones. - 5. Influence of boundary conditions upon thermal regime of lightscattering snow-ice layer. - 6. Statements of basic problems of radiative thermal physics of snow and ice. - Chapter 3. Thermal Regime of Snow-Ice Cover. - 1. Estimation of heat processes characteristics of snow-ice covers. - 2. Oscillating external sources. - 3. Radiative-conductive mechanism of snow and ice heating. - 4. Thermal regime of combined snow-ice layers. - 5. Melting in snow-ice media under conditions of radiative heat transfer. - 6. Thermo-radiative heating and balance of the upper part of active layer of antarctic snow-ice covers. - Chapter 4. The Model of Metamorphic Evolution of Snow and Ice. - 1. Influence of radiation fluxes upon icy crystals of snow cover. - 2. Mechanism of sublimation under forming of snow cover. - 3. Phenomenological picture of sublimation in snow medium. - 4. The model of radiative-thermal regime under sublimation. - 5. Thermal regime of snow and ice under conditions of evaporation and condensation. - 6. On nature of snow and ice metamorphism. - Chapter 5. Radiative Thermophysics of Snow-Ice Masses in Practical utilization. - 1. Heat regime of snow-ice cover under thermoregulative film. - 2. Influence upon surface melting of glaciers. - 3. Antarctic experiments on artificial increase of ablation. - 4. Artificial increase of ablation control. - 5. Ecological aspects of artificial increase of ablation. - 6. Cooling in polar regions. - Chapter 6. Thermophysics of Antarctic Lakes. - 1. Natural conditions of oases. - 2. Types of antarctic lakes. - 3. One-dimensional heat problem. - 4. Simplification of the model. - 5. Thermal regime of fresh and saline lakes. - 6. Phenomenon of fresh-saline stratified lakes. - 7. Stationary model including mass transfer. - 8. Thermal regime of fresh-saline lake Vanda. - Chapter 7. Space Glaciology. - 1. Ice in Solar system. - 2. Radiative thermophysics of ice under cosmic conditions. - 3. Ice of cometary nuclei. - 4. Heat-balance models of 'radiative thermophysics of cometary nuclei. - Conclusion. - References. - Index. , In kyrillischer Schrift
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  • 56
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-92/17
    In: CRREL Report, 92-17
    Description / Table of Contents: The CRREL Instrumented Vehicle (CIV), shear annulus, direct shear, andtriaxial compression devices were used to characterize the strength ofthawed and thawing soil. These strength values can be used in simpletraction models to predict the tractive performance of vehicles. Strength was evaluated in terms of the parameters c' and Φ' based on the Mohr-Coulomb failure criterion. It is proposed here that an instrumented vehicle is best suited for terrain characterization for mobility studies because the conditions created by a tire slipping on a soil surface are exactly duplicated. The c' and Φ' values from the shear annulus were found to overpredict traction because of the low normal stress applied by the annulus and the curved nature of the failure envelope. Of all the tests, the direct shear test yielded the highest Φ' value, most likely because the test was run at a slow deformation rate under drained conditions. The triaxial test results were the most similar to those from the vehicle. All test methods show Φ' increasingwith soil moisture up to the liquid limit of the soil and then decreasing. As measured with the vehicle, was also found to be strongly influenced by the thaw depth.
    Type of Medium: Series available for loan
    Pages: 17 Seiten , Illustrationen
    Series Statement: CRREL Report 92-17
    Language: English
    Note: CONTENTS Introduction Objective Background Strength measurement techniques Triaxial compression Direct shear Shear annulus device CRREL Instrumented Vehicle Discussion Comparison of methods Influence of soil conditions Traction prediction Conclusions References Abstract
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  • 57
    Call number: ZSP-201-94/12
    In: CRREL Report, 94-12
    Description / Table of Contents: Subsurface radar was used to profile ice and snow conditions on the Ross Ice Shelf at McMurdo Station, Antarctica, during mid-January 1993. Deconvolution and migration were often used to improve vertical resolution and spatial imaging. Profiles at a pulse center frequency of 400 MHz along the 3.2-km-long Pegasus ice runway show many low-density horizons above 9 m depth that are up to 30 m long. They are associated with air bubbles included during refreezing of meltwater and are interpreted as layers between a few and tens of centimeters thick. There is a strong reflecting horizon at about 9 m depth that is probably from brine intrusion as it is continuous with the intrusion into the snow to the east. Diffraction asymptotes give a dielectric constant near 3.2 for material above the brine level, a value that implies near-solid ice. Profiles at 100 MHz along the road between Pegasus runway and Williams Field in the accumulation zone show snow features such as layer deformation and intrusive brine layers that both abruptly and gradually change in depth. A single profile at a relic solid waste dump at Williams Field detected buried debris and ice within the upper 7 m. A survey of a suspected fuel spill shows some local disturbances near the center, but no excavation was done to verify the findings. Profiles traversing the sewage sumps at Williams Field outline the extent of the sewage deposition, and give depths to contaminated snow that closely agree with observation. Despite variability in dielectric properties, single-layer migration effectively improves the resolution of subsurface conditions. Recommendations are made for future surveys.
    Type of Medium: Series available for loan
    Pages: iv, 29 Seiten , Illustrationen
    Series Statement: CRREL Report 94-12
    Language: English
    Note: CONTENTS Preface Introduction Radar equipment General operation Antennas Waveforms and phase polarity Antenna directivity Field procedures and data processing Field procedures Data recording Data processing Site location Results Pegasus runway Access road from Williams Field to Pegasus runway Williams Field Summary and conclusions Literature cited Appendix A: Airborne profile of a portion of the access road Abstract
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  • 58
    Monograph available for loan
    Monograph available for loan
    Bonn : Der Bundesminister für Forschung und Technologie, Referat Öffentlichkeitsarbeit]
    Call number: M 19.92438
    Type of Medium: Monograph available for loan
    Pages: 103 Seiten , Illustrationen
    Language: German
    Location: Upper compact magazine
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  • 59
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-994(1990/1991)
    In: Zweijahresbericht / Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung, [4]
    Type of Medium: Series available for loan
    Pages: 170 Seiten , Illustrationen
    Series Statement: Zweijahresbericht / Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung [4.]
    Language: German
    Note: Inhaltsverzeichnis 1. Einleitende Übersicht 2. Nationale und internationale Zusammenarbeit 2.1 Nationale Zusammenarbeit 2.2 Internationale Zusammenarbeit 3. Forschungsarbeiten - Expeditionen 3.1 ANTVIII 3.2 ARKVII 3.3 ANT IX 3.4 ARK VIII 3.5 ANT X/1 4. Arbeitsberichte der Sektionen 4.1 Biologie I (Zoologie) 4.2 Biologie II (Botanik und Mikrobiologie) 4.3 Chemie 4.4 Geologie 4.5 Geophysik 4.6 Physik des Ozeans und der Atmosphäre I (Feldstudien) 4.7 Physik des Ozeans und der Atmosphäre 11 (Modelle) 4.8 Meeresphysik und Meßwesen 5. Ausgewählte Forschungsthemen 6. Logistik 6.1 Polarstationen 6.2 FS "Polarstern" und FK ,,Victor Hensen" 6.3 Polarflugzeuge und Hubschrauber 6.4 Ingenieurprojekte 6.5 Allgemeine Logistik 7. Zentrale Einrichtungen 7.1 Öffentlichkeitsarbeit 7.2 Bibliothek 7.3 Rechenzentrum 8. Personeller Ausbau und Haushaltsentwicklung 8.1 Personal 8.2 Haushalt Anhang I. Personal II. Wissenschaftl. Veranstaltungen III. Publikationen des Instituts IV. Veröffentlichungen der Mitarbeiter V. Abgeschlossene Examensarbeiten VI. "Polarstern"-Expeditionen
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  • 60
    Monograph available for loan
    Monograph available for loan
    Potsdam : Deutscher Wetterdienst
    Call number: MOP 47626 / Mitte
    Description / Table of Contents: Die Weiterführung der Vorhersagemodellierung an der ZWD mit der Zielstellung der RT-Ausbreitungsrechnung und der Weiterentwicklung höher aufgelöster regionaler Vorhersagesysteme im Rahmen einer abgestimmten Zusammenarbeit mit dem DWD setzt ein modernes ausbaufähiges Mesoanalysemodell voraus, daß in einer 100 km Grundversion in Standardelementen und auf Standardflächen realisiert wurde und einen Ausgangspunkt für sowohl operative Spezialanwendungen an der ZWD als auch inhaltliche Beiträge zu speziellen Problemen im Europa- und Deutschlandmodell des DWD darstellt.
    Type of Medium: Monograph available for loan
    Pages: 3 Anlagen
    Language: German
    Location: MOP - must be ordered
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  • 61
    Call number: PIK W 510-19-92837
    Type of Medium: Monograph available for loan
    Pages: VIII, 62 Seiten , Illustrationen, Diagramme, Karten
    ISBN: 9529844026
    Series Statement: Working paper / European Forest Institute 3
    Language: English
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  • 62
    Monograph available for loan
    Monograph available for loan
    Nerja : Patronato de la Cueva de Nerja
    Call number: AWI G1-19-92413
    Type of Medium: Monograph available for loan
    Pages: 354 Seiten , Illustrationen
    Series Statement: Trabajos sobre la Cueva de Nerja 3
    Language: Spanish
    Note: ÍNDICE PRESENTACIÓN INTRODUCCIÓN INTRODUCTION ESTUDIO GEOLÓGICO DEL ENTORNO DE LA CUEVA DE NERJA l. INTRODUCCIÓN 1.1. Localización geográfica 1.2. Metodología de trabajo 1.3. Objetivos 2. ENCUADRE GEOLÓGICO GENERAL 3. ANTECEDENTES 4. ESTRATIGRAFÍA 4.1. Materiales alpujárrides 4.1.1. Manto de Almijara (Alpujárride Intermedio) 4.1.1.1. Esquistos oscuros 4.1.1.2. Esquistos claros 4.1.1.3. Calcosquistos 4.1.1.4. Mármoles de la base 4.1.1.5. Mármoles con intercalaciones de esquistos y calcosquistos 4.1.2. Manto de Guájares (Alpujárride Superior) 4.1.2.1. Esquistos oscuros 4.1.2.2. Esquistos claros 4.1.2.3. Mármoles 4.2. Materiales Neógeno-Cuaternarios 4.2.1. Unidad inferior pliocena 4.2.2. Unidad superior pliocena 4.2.3. Unidad pleistocena 4:2.3.1. Brechas y conglomerados 4.2.3.2. Gravas, arenas y limos 4.2.3.3. Travertinos 4.2.3.4. Depósitos litoquímicos 4.2.4. Unidad Holocena 5. ESTRUCTURA GEOLÓGICA 6. HISTORIA GEOLÓGICA BIBLIOGRAFÍA ANÁLISIS ESTRATIGRÁFICO DE LOS MATERIALES NEÓGENOCUATERNARIOS DE LA REGIÓN DE NERJA 1. INTRODUCCIÓN 2. ESTRATIGRAFÍA 2.1. Brechas rojas basales 2.2. Unidad inferior pliocena 2.2.1. Facies continentales de la Unidad inferior pliocena 2.2.2. Facies marinas de la Unidad inferior pliocena 2.2.3. Medio de depósito 2.3. Discordancia intrapliocena 2.4. Unidad superior pliocena 2.4.1. Facies marinas de la Unidad superior pliocena 2.4.2. Facies continentales de la Unidad superior pliocena 2.4.3. Medio de depósito 2.5. Unidad pleistocena 2.5.1. Descripción de los materiales 2.5.2. Medio de depósito y edad de los materiales 2.6. Otros materiales atribuibles al Pleistoceno 2.6.1. Travertinos 2.6.2. Facies detrítcias y cabonatadas del cruce de la carretera de la Cueva 2.7. Materiales del Holoceno 3. EVOLUCIÓN TECTOSEDIMENTARIA y PALEOGEOGRÁFICA 4. CONCLUSIONES BIBLIOGRAFÍA LA FRACTURACIÓN EN EL ENTORNO DE LA CUEVA DE NERJA 1. INTRODUCCIÓN 1.1. Antecedentes 1.2 Estructura del entorno de la Cueva de Nerja 2. RASGOS GENERALES DE LA FRACTURACIÓN 3. ESTUDIO DE LAS FALLAS 3.1. Las fallas mesoscópicas 3.2. Las grandes fallas 4. ESTUDIO DE LAS DIACLASAS 4.1. Resultado del estudio de la diaclasación en el entorno de la Cueva de Nerja 4.2. Estudio de la diaclasación en el interior de la Cueva 5. COMPARACIÓN DE LOS RESULTADOS OBTENIDOS EN LAS DIACLASAS Y FALLAS 6. ALGUNOS DATOS ACERCA DE LA CRONOLOGÍA DE LA FRACTURACIÓN E IMPORTANCIA DE LA MISMA 7. CONTROLES GEOLÓGICOS DE LA CUEVA DE NERJA: INFLUENCIA DE LA FRACTURACIÓN 8. CONCLUSIONES BIBLIOGRAFÍA ESTUDIO GEOMORFOLÓGICO DEL ENTORNO DE LA CUEVA DE NERJA 1. INTRODUCCIÓN 2. SÍNTESIS GEOLÓGICA Y ÁMBITO BIOCLIMÁTICO 3. ANÁLISIS MORFOMÉTRICO Y DE LA RED DE DRENAJE 3.1. Consideraciones previas. Rasgos hidrográficos generales 3.2. Características de forma 3.3. Características de relieve 3.4. Análisis de la red de drenaje 4. RASGOS GENERALES DEL MODELADO EN EL CONJUNTO MONTAÑOSO 4.1. Erosión hídrica y formas estructurales 4.2. Periglaciarismo y glaciarismo 4.3. Morfologías kársticas 5. EL PIEDEMONTE LITORAL: FORMAS Y PROCESOS 5.1. Morfologías relacionadas con las brechas pleistocenas 5.2. Otras morfologías 6. BOSQUEJO DE EVOLUCIÓN GEOMORFOLÓGICA. PROCESOS ACTUALES BIBLIOGRAFÍA ESTUDIO HIDROGEOLÓGICO DEL ENTORNO DE LA CUEVA DE NERJA 1. INTRODUCCIÓN 2. ANTECEDENTES 3. MARCO CLIMÁTICO 3.1. Precipitciones 3.2. Temperaturas 4. HIDROLOGÍA SUPERFICIAL 5. EL ACUÍFERO DE LAS ALBERQUILLAS 5.1. Descripción 5.2. Puntos de Agua 5.2.1. Pozos perforados 5.2.1.1. Piezometría 5.2.2. Manantiales 5.2.2.1. El manantial de Maro 5.3. Hidrogeoquímica 5.3.1. Aplicación de la hidroquímica a la investigación hidrogeológica 5.3.1.1. Distribución espacial 5.3.1.2. Evolución temporal 5.3.2. Aplicación de la hidroquímica a la karstogénesis 5.3.2.1. El sistema calcocarbónico 5.4. Funcionamiento del acuífero 6. LA CUEVA DE NERJA EN EL ACUÍFERO DE LAS ALBERQUILLAS BIBLIOGRAFÍA INTRODUCCIÓN A LA PETROLOGÍA DE LOS MÁRMOLES DE LA CUEVA DE NERJA Y MATERIALES ASOCIADOS 1. INTRODUCCIÓN 2. CONTEXTO GEOLÓGICO 3. DESCRIPCIÓN DE LAS ROCAS Y PETROGRAFÍA 3.1. Rocas Carbonáticas 3.1.1. Mármoles dolomíticos puros 3.1.2. Mármoles dolomíticos impuros 3.1.3. Mármoles calcíticos y rocas con silicatos cálcicos 4. COMPOSICIÓN QUÍMICA DE LOS MINERALES 5. EVOLUCIÓN METAMÓRFICA 5.1. Antecedentes 5.2. Metamorfismo de las rocas carbonáticas 5.3. Condiciones del metamorfismo 6. CONCLUSIONES BIBLIOGRAFÍA DATACIONES GEOCRONOLÓGICAS ABSOLUTAS (Métodos E.S.R. y Series de Uranio) EN LA CUEVA DE NERJA Y SU ENTORNO. IMPLICACIONES EVOLUTIVAS, PALEOCLIMÁTICAS Y NEOSISMOTECTÓNICAS 1. INTRODUCCIÓN 2. METODOLOGÍA 2.1. Campaña de muestreo 2.2. Métodos geocronológicos empleados 3. LOCALIZACIÓN Y DESCRIPCIÓN DE LAS MUESTRAS 3.1. Muestras del interior de la Cueva de Nerja 3.2. Muestras de depósitos sedimentarios del entorno exterior 4. RESULTADOS OBTENIDOS Y DISCUSIÓN 5. CONCLUSIONES: IMPLICACIONES EVOLUTIVAS, PALEOCLIMÁTICAS Y NEOSISMOTECTÓNICAS 5.1. Relativas a la evolución de la Cueva de Nerja 5.2. Relativas a la edad de algunos materiales del entorno 5.3. Relativas a los cambios paleoclimáticos de la región 5.4. Relativas a la neosismotectónica de la región BIBLIOGRAFÍA . ESTUDIO DE LA VENTILACIÓN DE LA CUEVA DE NERJA MEDIANTE LA CONCENTRACIÓN DE RADÓN 1 INTRODUCCIÓN 1.1. Radioactividad Natural 1.2. Cómo se puede medir la concentración en Rn 1.3. Exhalación en Rn del suelo 1.4. Método para evaluar la ventilación 2 DISPOSITIVO EXPERIMENTAL 2.1. Toma de muestras de aire 2.2. Medida del contenido en Rn de las células 2.3. Medida de la temperatura del aire de la Cueva 3 RESULTADOS 3.1. Concentración de Rn en la Cueva 3.2. Temperatura del aire en la Cueva 3.3. Evaluación del índice de ventilación BIBLIOGRAFIA CARACTERIZACIÓN ISOTÓPICA Y ANÁLISIS DE LOS PROCESOS DE DEGRADACIÓN DE LOS MATERIALES CARBONATADOS DE LA CUEVA DE NERJA. ESTUDIO PRELIMINAR 1. INTRODUCCIÓN 1.1. Antecedentes 1.2. Localización geológica y materiales estudiados 2. METODOLOGÍA 2.1. Muestreo 2.2. Estudio de laboratorio 2.2.1. Análisis mineralógico 2.2.2. Isótopos estables 2.2.3. Elementos traza 2.2.4. Microscopía electrónica de barrido 3 RESULTADOS OBTENIDOS 3.1. Espeleotemas 3.2. Roca encajante 3.3. Travertinos 3.4. Mustras de agua 4. INTERPRETACIÓN Y DISCUSIÓN DE LOS RESULTADOS 4.1. Isótopos estables 4.2. Estudio de las alteraciones 4.2.1. Procesos de alteración de carbonatos 4.2.2. Estudio de elementos traza 4.2.3. Estudio mineralógico 5 CONCLUSIONES AGRADECIMIENTOS BIBLIOGRAFÍA ESTUDIO GEOQUÍMICO DE LAS AGUAS DE INFILTRACIÓN DE LA CUEVA DE NERJA 1. INTRODUCCIÓN 2. METODOLOGÍA DE TRABAJO 2.1. Trabajo de campo 2.2. Trabajo de laboratorio 2.3. Trabajo de gabinete 3. LOS CAUDALES DE GOTEO 4. LOS PARÁMETROS FÍSICO-QUÍMICOS: (pH, TEMPERATURA y CONDUCTIVIDAD) 5. LA INFORMACIÓN HIDROGEOQUÍMICA 5.1. La química de los carbonatos 5.1.1. Los equilibrios calco-carbónicos, el pH de equilibrio y la presión parcial de CO2 5.1.2. La pC02 de las aguas de infiltración 5.1.3. El dpH de las aguas de infiltración 5.2. Las distintas clases de agua 5.3. Consideraciones sobre algunos componentes químicos de interés en las aguas de infiltración sensu stricto 5.3.1. Iones procedentes mayoritariamente del agua de lluvia 5.3.1.1. Cloruros (Cl-) 5.3:1.2. Sílice(SiO2) 5.3.1.3. Nitratos (NO3) 5.3.1.4. Sulfatos (SO4) 5.3.2. Iones procedentes fundamentalmente de los materiales acuíferos 5.3.2.1. Alcalinidad total (TAC) 5.3.2.2. Relación CA2+/Mg2+ 6. ALGUNOS ASPECTOS PARA LA CONSERVACIÓN DE LA CUEVA 7. CONCLUSIONES BIBLIOGRAFÍA MEDIDAS TOPOGRÁFICAS DE PRECISIÓN PARA CONTROL DE MICRODEFORMACIONES EN EL TECHO DE LA CUEVA DE NERJA 1. INTRODUCCIÓN 2. DESCRIPCIÓN DEL SISTEMA 3. MEDIDAS DE IMPLANTACIÓN 4. ALTIMETRÍA 5. RESULTADOS Y CONCLUSIONES AGRADECIMIENTOS BIBLIOGRAFÍA . , In spanischer Sprache , Zusammenfassung in englischer Sprache
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  • 63
    Call number: MOP 41324/I / Mitte
    Type of Medium: Monograph available for loan
    Pages: 162 Seiten
    Language: English
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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-201-93/3
    In: CRREL Report, 93-3
    Description / Table of Contents: Results are presented of a study to determine appropriate methods of flow modification for mitigating ice jam formation in navigable rivers. Based on a review of alternative methods for flow modification, it is concluded that for many rivers, especially large ones, the most appropriate method involves controlled ice-cover formation through the regulation of river flow. Flow discharge and stages would be regulated by controlling the flow releases from reservoirs and flow stages at river dams, such that optimal flow conditions prevail for rapid formation, and subsequent maintenance, of an accumulation ice cover over river reaches in which potentially large amounts of frazil ice may grow. Accumulation covers would be formed of frazil ice pans and floes and, if appropriate, broken ice conveyed from upstream. Existing dams, augmented where needed by navigable ice booms, could serve as retention structures for the development of accumulation covers. A preliminary indication of the feasibility of this method for controlling ice-cover formation on stage-regulated pools of the Ohio River is assessed through the use of a numerical model that simulates ice-cover formation from frazil ice. It is found that this approach holds promise for mitigating jam occurrence, although its implementation necessarily entails management of flow through major portions of the Ohio River. The results of the study are, to a limited extent, generalized to other rivers.
    Type of Medium: Series available for loan
    Pages: v, 58 Seiten , Illustrationen
    Series Statement: CRREL Report 93-3
    Language: English
    Note: CONTENTS Preface Nomenclature Introduction Background Scope of the study Control of river ice formation Control methods Controlled ice-cover formation for the upper Ohio River Numerical simulation of ice-cover formation Flow profile Water temperature variation Frazil ice growth Ice-cover progression Thermal growth of ice cover Numerical results Illustration of simulated ice-:over formation Ice-cover formation in the Hannibal and Montgomery pools Generalized results Conclusions and recommendations Literature cited Appendix A: Expression for coefficients Appendix B: Listing of computer program
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  • 65
    Monograph available for loan
    Monograph available for loan
    Dordrecht : Springer | New York [u.a.] : Chapman & Hall
    Call number: AWI G3-20-93489
    Description / Table of Contents: Frozen Ground Engineering first introduces the reader to the frozen environment and the behavior of frozen soil as an engineering material. In subsequent chapters this information is used in the analysis and design of ground support systems, foundations, and embankments. These and other topics make this book suitable for use by civil engineering students in a one-semester course on frozen ground engineering at the senior or first-year-graduate level. Students are assumed to have a working knowledge of undergraduate mechanics (statics and mechanics of materials) and geotechnical engineering (usual two-course sequence). A knowledge of basic geology would be helpful but is not essential. This book will also be useful to advanced students in other disciplines and to engineers who desire an introduction to frozen ground engineering or references to selected technical publications in the field. BACKGROUND Frozen ground engineering has developed rapidly in the past several decades under the pressure of necessity. As practical problems involving frozen soils broadened in scope, the inadequacy of earlier methods for coping became increasingly apparent. The application of ground freezing to geotechnical projects throughout the world continues to grow as significant advances have been made in ground freezing technology. Freezing is a useful and versatile technique for temporary earth support, groundwater control in difficult soil or rock strata, and the formation of subsurface containment barriers suitable for use in groundwater remediation projects.
    Type of Medium: Monograph available for loan
    Pages: x, 352 Seiten , Illustrationen
    ISBN: 978-1-4757-2292-5
    Language: English
    Note: Contents PREFACE CHAPTER 1. FROZEN GROUND 1.1 Frozen ground support systems Frozen earth wall Design considerations 1.2 Seasonally and perennially frozen ground Cold regions: definition Subsurface temperatures Active layer, Permafrost 1.3 Terrain features in permafrost areas Ground ice features Patterned ground 1.4 Engineering considerations Freezing process Thawing of frozen ground Frost action Useful aspects of frozen ground Ice as a construction material Problems CHAPTER 2. PHYSICAL AND THERMAL PROPERTIES 2.1 Composition and structure of frozen ground Soil types Phase relationships Ice phase Particle size and size distribution Consistency of cohesive soils 2.2 Soil classification Unified soil classification system Frozen soil classification 2.3 Water-ice phase relationships Unfrozen water in frozen soil Effect of solutes on freezing 2.4 Soil frost action Frost action process Frost susceptibility of soils Frost-heave forces Freeze-thaw effects on permeability 2.5 Thermal properties Thermal conductivity Heat capacity Thermal diffusiuity Latent heat of fusion Thermal expansion (or contraction) Problems CHAPTER 3. HEAT FLOW IN SOILS 3.1 Heat transfer at the ground surface Climatic factors Freezing (or thawing) indices Surface n-factor 3.2 Seasonal ground freezing (or thawing) Frost depth Thawing of frozen soil Design implications 3.3 Temperature below cooled (or heated) areas Steady state heat flow Transient temperatures Periodic heat flow 3.4 Thermal analysis: frozen ground support systems Single freeze pipe Wall formation Multiple rows of freeze pipes Problems CHAPTER 4. THAW BEHAVIOR OF FROZEN GROUND 4.1 Thaw settlement 4.2 Consolidation of thawing soils Thaw consolidation Residual stress in thawing soils 4.3 Thaw-consolidation in some layered systems Two layer soil problems Compressible soil ouer discrete ice layers Problems CHAPTER 5. MECHANICAL PROPERTIES OF FROZEN SOILS 5.1 Stress-strain-time and strength behavior Hydrostatic pressure effect on frozen soil behavior Shear stress effect on frozen soil behavior 5.2 Factors influencing creep and strength Creep of frozen soil under constant stress Stress-strain behavior under constant strain rate Ice content effect on strength Normal pressure effect on strength Strain rate effect on strength Temperature effect on strength Frozen soil behauior at cryogenic temperatures 5.3 Analytical representation of creep and strength data General creep equation Strength of frozen soils Comparison with Vyalou's creep and strength equations Normal pressure effect on creep and strength Salinity effect on frozen soil creep and strength 5.4 Frozen soil behavior in uniaxial tension 5.5 Deformability of frozen soils 5.6 Compressibility of frozen soils Problems CHAPTER 6. CONSTRUCTION GROUND FREEZING 6.1 Design considerations Ground freezing applications Soil conditions Groundwater flow Ground movement 6.2 Freezing methods and system installation Primary plant and pumped loop secondary coolant Expendable liquid refrigerant Installation of the cooling system 6.3 Structural design of frozen earth walls Curved walls Straight walls and combinations Tunnels Finite-element method 6.4 Monitoring requirements Freeze hole deviation Temperature Frost boundary location and wall thickness 6.5 Other construction considerations Protection of exposed frozen earth Concrete placement against frozen earth Problems CHAPTER 7. FOUNDATIONS IN FROZEN SOILS 7.1 General considerations Foundations in seasonally frozen ground Foundations in permafrost 7.2 Shallow foundations Selection of foundation method Design of shallow foundations Bearing capacity Settlement considerations 7.3 Pile foundations Pile types Pile placement Pile freezeback Axially loaded piles Laterally loaded piles Anchors in frozen ground 7.4 Frost-heave forces on foundations Tangential forces on a vertical surface Design for frost heave Problems CHAPTER 8. STABILITY OF SOIL MASSES IN COLD REGIONS 8.1 Landslides in permafrost: classification 8.2 Slopes in thawing permafrost Low-angle planar flows Slides 8.3 Slopes in frozen soils 8.4 Slope stabilization methods Construction and design techniques Stabilization of planar slides Stabilization of cut slopes Problems CHAPTER 9. EARTHWORK IN COLD REGIONS 9.1 Site considerations Drainage Thermal and frost action factors Subsurface conditions Material sources 9.2 Excavation and transport Mechanical excavation Drilling and blasting Thawing frozen soil Hydraulic dredging 9.3 Field placement Compaction Placement in water 9.4 Water-retaining embankments on permafrost Unfrozen embankments Frozen embankments Maintaining the frozen state Thermal and stability considerations 9.5 Embankment performance Frost heave Settlement Stability Artificial islands CHAPTER 10. FIELD INVESTIGATIONS 10.1. Sampling frozen ground Sampling methods Sample protection 10.2 Ground-temperature measurement Temperature sensors and measuring equipment 10.3 Field testing of frozen soils Field test methods Pressuremeter test Deep static cone penetration test Other types of field tests 10.4 Geophysical methods Seismic velocities in frozen ground Electrical properties of frozen ground Geophysical techniques used in frozen ground High-frequency electrical methods Borehole logging in permafrost APPENDIX A. SYMBOLS APPENDIX B. SI UNITS APPENDIX C LABORATORY AND FIELD TESTS ON FROZEN SOILS C1 Handling, storage, and machining of specimens prior to testing C2 Uniaxial compression test C3 Uniaxial tensile test C.4 Salinity of soil pore water C5 Thermosiphon C6 Pile load test in permafrost REFERENCES AUTHOR INDEX SUBJECT INDEX
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  • 66
    Monograph available for loan
    Monograph available for loan
    Potsdam : Meteorologsiches Hauptobservatorium
    Call number: MOP 47549 / Mitte
    Type of Medium: Monograph available for loan
    Language: German
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  • 67
    Call number: AWI A3-20-93434-2
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 2
    Type of Medium: Series available for loan
    Pages: 218 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,2
    Language: German
    Note: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
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  • 68
    Call number: MOP 47934 / Mitte
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    Language: German
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  • 69
    Call number: MOP 47869 / Mitte
    Type of Medium: Dissertations
    Pages: 117, XXIII, 4 Blätter , Diagramme , 30 cm
    Language: German
    Note: Dissertation, Universität Leipzig, 1992
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  • 70
    Monograph available for loan
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    [Reading] : European Centre for Medium Range Weather Forecasts
    Call number: MOP 47681 / Mitte
    Type of Medium: Monograph available for loan
    Pages: vii, 480 Seiten , Illustrationen , 30 cm
    Language: English
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  • 71
    Call number: MOP 47695 / Mitte
    Type of Medium: Dissertations
    Pages: 83, [5] Blätter , Illustrationen
    Language: German
    Note: Dissertation, Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, 1990
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  • 72
    Monograph available for loan
    Monograph available for loan
    Hong Kong : Royal Observatory
    Call number: MOP 47253(1989) / Mitte
    Type of Medium: Monograph available for loan
    Pages: 96, [2] Seiten , Illustrationen
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  • 73
    Monograph available for loan
    Monograph available for loan
    Jena : Univ.
    Call number: PIK N 602-21-94422
    Type of Medium: Monograph available for loan
    Pages: 31 S. , Ill.
    Edition: 4., neu erarb. Aufl.
    Language: German
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  • 74
    Monograph available for loan
    Monograph available for loan
    Göttingen : Selbstverl. d. Forschungszentrums Waldökosysteme, Univ.
    Call number: PIK W 511-92-0244
    Type of Medium: Monograph available for loan
    Pages: IX, 200 S , Ill
    Series Statement: Berichte des Forschungszentrums Waldökosysteme / Universität Göttingen 80
    Language: German
    Note: Zugl.: München, Techn. Univ., Diss., 1992
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  • 75
    Series available for loan
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    Offenbach am Main : Deutscher Wetterdienst
    Associated volumes
    Call number: MOP 47697/8 / Mitte
    In: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt, Nr. 8
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    Series Statement: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt 8
    Language: German
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  • 76
    Series available for loan
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    Offenbach am Main : Deutscher Wetterdienst
    Associated volumes
    Call number: MOP 47697/10 / Mitte
    In: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt, Nr. 10
    Type of Medium: Series available for loan
    Series Statement: Verifikationsbericht zur Güte lokaler Wettervorhersagen / Deutscher Wetterdienst, Zentralamt 10
    Language: German
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  • 78
    Monograph available for loan
    Monograph available for loan
    Cambridge : British Antarctic Survey
    Call number: AWI Bio-21-94362
    Type of Medium: Monograph available for loan
    Pages: 214 Seiten , Illustrationen , 30 cm
    Edition: 1st published
    ISBN: 0856651400
    Language: English
    Note: TABLE OF CONTENTS ECOLOGY 1 Sea ice: its formation, distribution and properties 2 Ice-associated ecosystems 3 Ice diatoms 4 Techniques for sampling sea-ice algae 5 The Antarctic planktonic ecosystem 6 Some aspects of the large-scale physical oceanography of the Arctic Ocean influencing biological oceanography 7 Arctic planktonic ecosystems 8 Arctic plankton diatoms: dominant species, biogeography 9 The paleontological significance of fossil diatoms from the high-latitude oceans TAXONOMY 10 Key to diatom families and glossary 11 Family Thalassiosiraceae Section 1: the genera Skeletonema, Pororsira, Bacterosira, and Detonula and the genus Thalassiosira from the Arctic Section 2: the genus Thalassiosira from the Antarctic 12 Family Leptocylindraceae: the genus Corethron 13 Family Coscinodiscaceae: the genus Stellarima 14 Family Hemidiscaceae: the genera Actinocyclus and Azpeitia 15 Family Rhizosoleniaceae: the genera Rhizosolenia and Proboscia 16 Family Biddulphiaceae: the genus Eucampia 17 Family Diatomaceae: the genera Thalassiothrix and Trichotoxon 18 Family Naviculaceae: Arctic species of the genera Diploneis, Gyrosigma, Haslea, Navicula, Pinnularia, Pleurosigma, Stauroneis and Stenoneis 19 Family Naviculaceae: the genera Plagiotropis, Manguinea, Membraneis, and Banquisia 20 Family Naviculaceae: the genus Pseudogomphonema 21 Family Auriculaceae and Bacillariaceae: the genera Auricula, Hantzschia, and Nitzschia 22 Family Bacillariaceae: the genus Nitzschia section Pseudonitzschia 23 Family Bacillariaceae: the genus Nitzschia section Nitzschiella 24 Family Bacillariaceae: the genus Nitzschia section Fragilariopsis BIBLlOGRAPHY
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  • 79
    Monograph available for loan
    Monograph available for loan
    Jakutsk : Institut Merzlotovedenija SO RAN
    Call number: AWI G3-22-94863
    Description / Table of Contents: В сборнике освещаются современные представления о мерзлотных ландшафтах - закономерностях их функциониромния, временной динамике и пространственной дифференциации. В большинстве статей рассматриваются свойства многолетнемерзлого субстрата - температура, льдистость, мощность деятельного слоя как определяющие факторы самобытности мерзлотных ландшафтов. Показаны конкретные примеры зависимости развития мерзлотных ландшафтов от широтной зональпости, высотной поясности, меридианалыюй секторности, проявления ритмичности природных процессов, микроклимата и геолого -геоморфологических условий. Часть статей посвящена проблемам функционироnапия природно-антропогенных систем в криолитозоне и некоторым вопросам охраны и рационального использования мерзлотных ландшафтов. Сборник представляет интерес для широкого круга исследователей, интсресующихся вопросами региональноrо и теоретического мерзлотоведения, ландшафтоведения, охраны природы и рационального природопользования.
    Description / Table of Contents: Translation of the abstract: The collection highlights modern ideas about permafrost landscapes - the laws of their functioning, temporal dynamics and spatial differentiation. Most articles consider the properties of the permafrost substrate - temperature, ice content, thickness of the active layer - as determining factors of the identity of permafrost landscapes. Concrete examples of the dependence of the development of permafrost landscapes on latitudinal zonality, altitudinal zonality, meridianal sector, manifestations of the rhythm of natural processes, microclimate and geological and geomorphological conditions are shown. Some of the articles are devoted to the problems of the functioning of natural-anthropogenic systems in the permafrost zone and some issues of the protection and rational use of permafrost landscapes. The collection is of interest to a wide range of researchers interested in issues of regional and theoretical permafrost, landscape science, nature conservation and rational nature management.
    Type of Medium: Monograph available for loan
    Pages: 191 Seiten , Illustrationen
    ISBN: 5-7623-0694-1
    Language: Russian
    Note: СОДЕРЖАНИЕ Антропогенные изменения климата криоэкология / М.К.Гаврилова Изменчивость параметров гидротермического режима грунтов на склоновых ландшафтах Центральной Якутии / С.П.Варлатов, Ю.Б. Скачков, П.Н.Скрябин Влияние инверсии воздуха на температурный режим маревых ландшафтов Западной Якутии / П.Я. Копстаптинов К вопросу типизации деятельного слоя на примере Якутии / И.С. Васильев Склоновая микрозональность ландшафтов долины среднего течения р. Амги / А.Н. Горохов. Криогенные "мезы" - специфическая особенность высокогорных ландшафтов Центральных Анд / А.П. Горбунов. Засоление почв при аласообразовании / Р.В. Десяткин Радиационный баланс и микроклимат листвсннично-березовоrо леса Центральной Якутии / И. Сугаров Оценка чувствительности мерзлотных ландшафтов на примере трассы маmстрального водовода р Лена-Татта / А.Н. Федоров, Н.П. Босиков, П.Я. Константинов, Я.И. Торговкин, И.С.Василъев, Т.А. Ботулу Дистанционный контроль естественной и антропогенной динамики природной среды Севера / М.М. Шаи, А.Г. Корев, С.И.Сериков О развитии криогенных процессов и устойчивости агроземель в Якутии / П.П. Гаврилъев О влиянии техногенных нарушений на температурный режим грунтов на Приленском плато / П.Н.Скрябин, Г.Г. Пудов Прокладка газопровода на маревых и аласных участках Центральной Якутии / И.П. Константинов, В.А. Попов Криогенное разрушение сенокосных угодий Заполярья / В.П. Босиков Формирование и режим техногенных криопэщв в ландшафтах долины р. Лены / B.Н. Kиpeeв Температура rорных пород техногенных ландшафтов месторождения трубки "Удачная" / И.В. Климовский, С.П. Готовцев Изменение водно-физических свойств почв аласов под антропогенным воздействием / В.Г. Тарабукина Подземные льды и хозяйственное освоение высокогорных территорий Тянь-Шаня и Памира / Е.Д. Ермолин Уточненная методика сглаживания для решения одномерной задачи Стефана / А.С. Тетельбаум , In kyrillischer Schrift
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  • 80
    Call number: AWI G4-22-94986
    Description / Table of Contents: Hydrological processes occurring within the vadose zone, especially in heterogeneous soils and tills typical of the Canadian shield, are not well understood. This research investigates the importance of the vadose zone in a small headwater basin (Harp 4-21) in the Canadian shield with respect to the generation of stream runoff quantity and quality during episodic rainfall and snowmelt events. The study focused specifically on: firstly the effect of variable antecedent moisture conditions on water-table and stream response, secondly, the significance of the stored vadose water in water extracted from a rising water-table, and thirdly the significance of preferential flowpathways in the vadose zone as a means of rapidly rotating, stored vadose water to the stream during runoff events. The instrumentation of the Harp 4-21 basin includes three v-notch weirs along the stream, numerous piezometers and wells, several soil lysimeters, and three tensiometer nests. Much of the data used in this study was obtained from five sites located along a hillslope transect. Soil water content at each of the hillslope sites was accurately determined using time domain reflectometry (TDR), whereas water table elevations were measured using both electronic water level tapes and calibrated rod floats. Preferential flowpath data was derived from flow gauging and chemical analyses of water samples. Results obtained from the near-stream and lower slope reaches of the hillslope transect indicated that soil water content in the vadose zone is maintained at a high level of saturation by shallow water-table depths. Further analysis of simultaneously measured soil water content and depth to water—table data clearly showed that the existence of a thick essentially saturated zone overlying the water table (capillary fringe) was responsible for the large and rapid water-table responses observed during many of the nine studied precipitation events. On a basin scale, the seasonal variability of the area in which the capillary fringe extended to the ground surface was largely responsible for the observed trend in basin yield (runoff volume/ rainfall volume) for the nine runoff events. Chemical tracing results using silica, pH and DOC showed that the large vadose water reservoir in the near-stream and lower slope areas was a dominant component in water extracted from a rising water-table during most precipitation events. Silica results from the near-stream vadose zone showed that only the massive groundwater recharge associated with spring snowmelt could completely replace the vadose water reservoir with shorter residence time snowmelt/rainfall water. The rapid routing of stored near-stream capillary fringe vadose water through preferential pathways (macropores, soil pipes) was a significant source of runoff to the stream during runoff events. The presence of soil pipes, along with the significant vadose water reservoir in near-stream and lower slope areas are sufficient to explain the large phreatic/vadose water component typically identified in two component flow separation models, and constitutes the basis of a physically-based conceptual runoff model for the Harp 4-21 basin.
    Type of Medium: Dissertations
    Pages: 172 Seiten , Illustrationen
    Language: English
    Note: Masterarbeit, Wilfrid Laurier University, Waterloo, 1992 , Table of Contents Abstract Acknowledgements List of Figures List of Tables Chapter 1 Introduction and Literature Review 1.1 introduction 1.2 Research objectives 1.3 Literature review 1.3.1 Overland flow 1.3.2 Overland flow from partial areas 1.3.3 Subsurface stormflow 1.3.4 The variable source area subsurface stormtlow concept 1.3.5 Groundwater and the capillary fringe effect 1.3.6 Preferential flow 1.3.6.1 Macropore flow 1.3.6.2 Unstable flow 1.4 Summary of uncertainties in the vadose zone Chapter 2 Methodology 2.1 Introduction 2.2 The Harp 4-21 basin: site description 2.2.1 Basin topography 2.2.2 Bedrock and surficial geology 2.2.3 Vegetation 2.2.4 General hydrology 2.3 Basin instrumentatio 2.3.1 Stream 2.3.2 Phreatic zone 2.3.3 Vadose zone 2.3.3.1 Soil moisture 2.3.3.2 Preferential flowpaths 2.4 Hillslope transect instrumentation 2.4.1 The hillslope transect 2.4.2 Time domain reflectometry 2.4.3 Vadose water extraction 2.5 Sampling techniques, frequency and chemical analyses 2.5.1 Precipitation 2.5.2 Stream 2.5.3 Phreatic zone 2.5.4 Vadose zone 2.5.4.1 Soil moisture measurement and analysis of the TDR trace 2.5.4.2 Vadose water sampling 2.5.5 Chemical analysis Chapter 3 Results and Discussion: Antecedent Moisture Conditions 3.1 Introduction 3.2 Runoff events ~ampled during the May 1990 - April 1991 field season 3.3 Assessment of antecedent moisture conditions in the Harp 4-21 basin 3.3.1 Seasonal basin yield 3.3.2 Seasonal depth to water-table 3.3.3 Tensiometric data 3.3.4 Soil moisture conditions in the hillslope transect (Time Domain Reflectometry) 3.3.4.1 Soil water content/depth to water-table relationship 3.3.4.2 Estimation of the capillary fringe thickness and the temporal variation of basin area in which it extends to the ground surface 3.4 Assessment of the origin of water in the vadose zone of near-stream and lower slope areas which experience significant water-table responses during runoff generating events 3.4.1 Introduction 3.4.2 Near-stream 07 piezometer nest 3.4.3 Lower slope TD4 mini-piezometer nest Chapter 4 Preferential flowpathways: Results and discussion 4.1. Discharge contributions to streamflow during runoff events 4.2. Assessment of the origin of water emmitted from the soil pipes during runoff events Chapter 5 Conclusions References Appendix I Appendix II Appendix Ill Appendix IV Appendix V , Englisch
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  • 81
    Call number: S 90.0095(246)
    In: Special paper / The Geological Society of America, 246
    Type of Medium: Series available for loan
    Pages: VII, 364 Seiten , Illustrationen, graphische Darstellungen, Karten , 28 cm
    ISBN: 0-8137-2246-2
    Series Statement: Special paper / The Geological Society of America 246
    Language: English
    Note: Preface Introduction Magmatic and hydrothermal processes in ore-bearing systems Judith L. Hannah and Holly J. Stein Theoretical and Experimental Studies Theoretical contraints on the chemistry of the magmatic aqueous phase Philip A. Candela Partitioning of F and Cl between magmatic hydrothermal fluids and highly evolved granitic magma James D. Webster and John R. Holloway Internal differentiation of rare-element pegmatites; A synthesis of recent research David London Fluorine-rich Granite-Rhyolite Systems The petrogenetic and metallogenetic significance of topaz granite from the southwest England orefield D.A.C. Manning and P. I. Hill The role of fluorine in the petrogenesis of magmatic segregations in the SL Francois volcano-plutonic terrane, southeastern Missouri P. I. Nabelek and C. Russ-Nabelek Melt inclusions in the quartz phenocrysts of rhyolites from Topaz and Keg Mountains, Thomas Range, Utah Christine Payette and Robert F. Martin Rare-metal enriched peralumininous rhyolites in a continental arc, Sierra Bianca area, Trans-Pecos Texas; Chemical modification by vapor-phase crystallization Jonathan G. Price, Jeffrey N. Rubin, Christopher D. Henry, Thomas L. Pinkston, Steven W. Tweedy, and David W. Koppenaal Tin and Tungsten-bearing Granitoids Comparative petrologic evolution of the Sn and W granites of the Fairbanks-Circle area, interior Alaska R. J. Newberry, L. E. Bums, S. E. Swanson, and T. E. Smith Mineralogical variation as a guide to the petrogenesis of the tin granites and related skarns, Seward Peninsula, Alaska Samuel E. Swanson, Rainer J. Newberry, Gary A. Coulter, and Thomas M. Dyehouse Geochemistry of highly fractionated I- and S-type granites from the tin-tungsten province of western Tasmania W. N. Sawka, M. T. Heizler, R. W. Kistler, and B. W. Chappell Genesis and fluid evolution of the East Kemptville greisen-hosted tin mine, southwestern Nova Scotia, Canada Jean M. Richardson, Keith Bell, David H. Watkinson, and John Blenkinsop Mica chemistry as an indicator of oxygen and halogen fugacities in the CanTung and other W-related granitoids in the North American Cordillera W. T. van Middelaar and J. D. Keith The Black Pearl mine, Arizona; Wolframite veins and stockscheider pegmatite related to an albitic stock Christopher Schmitz and Donald M. Burt Tin-bearing Rhyolites, Black Range, New Mexico Genesis of the rhyolite-hosted tin occurrences in the Black Range, New Mexico, as indicated by stable isotope studies Robert O. Rye, John L. Lufkin, and Michael D. Wasserman Eruptive fountains of silicic magma and their possible effects on the tin content of fountain-fed lavas, Taylor Creek Rhyolite, New Mexico Wendell A. Duffield Origin of Taylor Creek rhyolite magma, Black Range, New Mexico, based on Nd-Sr isotope studies Cadi Reece, Joaquin Ruiz, Wendell A. Duffield, and P. Jonathan Patchett Other Pre-Tertiary Granitoid Examples Petrogenesis of the Proterozoic rapakivi granites of Finland Ilmari Haapala and O. Tapani Rämö The Topsails igneous suite, western Newfoundland; Fractionation and magma mixing in an "orogenic" A-type granite suite Joseph B. Whalen and Kenneth L. Currie Anorogenic, bimodal emplacement of anorthositic, charnockitic, and related rocks in the Adirondack Mountains, New York James McLelland and Philip Whitney Geochemistry and metallogeny of Arizona peraluminous granitoids with reference to Appalachian and European occurrences Anne L. Shaw and John M. Guilbert Index
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  • 82
    Series available for loan
    Series available for loan
    Boulder, Colo. : Geological Society of America
    Associated volumes
    Call number: S 90.0095(268)
    In: Special paper / The Geological Society of America, 268
    Type of Medium: Series available for loan
    Pages: ix, 406 Seiten , illustrationen, Karten , 28 cm
    ISBN: 0-8137-2268-3
    Series Statement: Special paper / The Geological Society of America 268
    Language: English
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  • 83
    Monograph available for loan
    Monograph available for loan
    Waterloo, Ont. : University of Waterloo
    Call number: AWI G6-23-95002
    Type of Medium: Monograph available for loan
    Pages: xx, 214 Seiten , Illustrationen
    Language: English
    Note: Masterarbeit, University of Waterloo, 1990 , TABLE OF CONTENTS Abstract Acknowledgements List of figures List of tables List of plates preamble CHAPTER 1: INTRODUCTION 1.1 PURPOSE AND SCOPE 1.2 LOCATION AND CLIMATE 1.3 GEOLOGICAL SETTING 1.3.1 Bedrock geology 1.3.2 Glacial history 1.3.2 Surficial geology 1.4 PREVIOUS RESEARCH AND PARALLEL STUDIES 1.5 SITE INVESTIGATIONS 1.5.1 Introduction 1.5.2 Water sampling methods 1.5.3 Piezometer methods 1.5.4 Measuring hydraulic conductivity 1.S.S Surface flow monitoring 1.5.6 Seepage meters 1.5.7 Coring and porewater squeezing 1.5.8 Frost table probing 1.5.9 Geological mapping 1.5.10 Weather records 1.5.11 Depth sounding 1.6 ANALYTICAL METHODS AND LABORATORY INVESTIGATIONS 1.6.1 Sample collection, filtration, and alkalinity 1.6.2 Analytical methods 1.6.3 Quality of chemical analyses 1.6.4 Grain-size distributions and organic matter contents in till 1.6.5 Core logging and porewater squeezing 1.6.6 SEM examination of mineral weathering CHAPTER 2: HYDROLOGY AND HYDROGEOLOGY synopsis 2.1 INTRODUCTION 2.2 LOCATION AND CLIMATE 2.3 FIELD AND ANALYTICAL METHODS 2.3.1 Field methods 2.3.2 Analytical methods 2.4 SETTING 2.5 HYDROLOGY 2.5.1 Surface hydrology 2.5.2 Groundwater hydrology 2.5.2.1 Thawing of the active layer 2.5.2.2 Structure and composition of the active layer till 2.5.2.3 Groundwater flow 2.6 DISCUSSION 2.7 CONCLUSIONS CHAPTER 3: A PRELIMINARY ASSESSMENT OF ISOTOPE HYDROLOGY AND GEOCHEMISTRY abstract 3.1 INTRODUCTION 3.2 STUDY AREA 3.3 ANALYTICAL METHODS 3.4 VEGETATION AND ACTIVE LAYER PROPERTIES 3.5 STABLE ISOTOPE DATA 3.6 WATER CHEMISTRY 3.7 SUMMARY CHAPTER 4: ISOTOPIC ANALYSIS OF EVAPORATION synopsis 4.1 INTRODUCTION 4.2 STUDY AREA 4.3 FIELD AND LABORATORY METHODS 4.3.1 Materials and field methods 4.3.2 Analytkal methods 4.4 THEORY 4.4.1 Theoretical development 4.4.2 Basis of this approach 4.5 PRESENTATION AND ANALYSIS OF DATA 4.6 DISCUSSION OF RESULTS 4.7 CONCLUSIONS CHAPTER 5: WATER BALANCE AND GEOCHEMICAL EVALUATIONS abstract 5.l INTRODUCTION 5.2 SETTING 5.3 ANALYTICAL METHODS 5.4 HYDROLOGY 5.5 WATER BALANCE CALCULATIONS 5.6 GEOCHEMISTRY 5.7 DISCUSSION 5.8 CONCLUSIONS CHAPTER 6: CONCLUSIONS AND RECOMMENDATIONS 6.1 SUMMARY OF CONCLUSIONS 6.2 RECOMMENDATIONS FOR FUTURE RESEARCH References LIST OF APPENDICES A. Part A: Stable isotope analyses of water samples Part B: Tritium analyses Part C: Field geochemical measurements Part D: Major ion analyses of water samples B. GROUNDWATER SAMPLING FROM PIEZOMETERS C. RELIABILITY OF Eh MEASUREMENTS D. PIEZOMETER DESIGNS/INSTALLATION PROCEDURES Part A: 1988 Part B: 1989 E. HYDRAULIC CONDUCTIVITY TESTING/DATA F. SURFACE FLOW MEASUREMENTS Part 1: Weir Part 2: Stream gauging G. SEEPAGE METER METHODS AND MEASUREMENTS H. CORING AND SQUEEZING METHODS I. CORE AND SOIL PIT DESCRIPTIONS J. LABORATORY INVESTIGATIONS TO ADDRESS WATER QUALITY Part A: Duplicates, blanks, and comparative analyses Part B: Filtration experiment Part C: Dissolved organic carbon Part D: Carbon-13 K. CHEMICAL AND ISOTOPIC ANALYSES OF POREWATERS EXTRACTED FROM CORES L. SCANNING ELECTRON MICROSCOPY OF TILL M. WATER BALANCE THEORY
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  • 84
    Call number: AWI G6-23-95004
    Type of Medium: Monograph available for loan
    Pages: vii, 100 Seiten , Illustrationen
    Language: English
    Note: Bachelorarbeit, Wilfrid Laurier University, 1993 , TABLE OF CONTENTS Chapter 1 Introduction Chapter 2 Literature Review 2.1 Introduction 2.2 Water Balance 2.3 Nutrient Inputs 2.4 Models Chapter 3 Study Site and Site Characteristics 3.1 Study Site Location 3.2 Geology 3.3 Surface Cover 3.4 Permafrost Depth 3.5 Lake Formation 3.6 Lake Characteristics 3.7 Lake Sub Basin Characteristics 3.8 Climate 3.9 Precipitation and Melt 3.10 Evaporation Chapter 4 Methods 4.1 Introduction 4.2 Physical Sampling 4.2.1 Water Level 4.2.2 Stream Discharge 4.2.3 Precipitation 4.2.4. Radiation 4.2.5 Evaporation 4.2.6 Groundwater 4.3 Chemical Sampling 4.3.1 Total Phosphorus 4.4 Biological Sampling 4.4.1 Chlorophyll a 4.5 Water Balance 4.6 Nutrient Inputs 4.7 Models 4.7.1 Predicting Total Phosphorus Concentrations 4.7.2 Chlorophyll a Chapter 5 Results 5.1 Introduction 5.2 Water Balance 5.2.1 Lake Storage 5.2.2 Stream Discharge 5.2.3 Precipitation 5.2.4 Radiation 5.2.5 Evaporation 5.2.6 Groundwater 5.3 Nutrient Inputs 5.4 Models 5.4.1 Predicting Total Phosphorus Concentrations 5.4.2 Chlorophyll a Chapter 6 Discussion 6.1 Introduction 6.2 Water Balance 6.3 Nutrient Inputs 6.4 Models Chapter 7 Further Study Appendices Appendix 1 Lake Storage Appendix 2 Discharge Data Appendix 3 Precipitation Appendix 4 Radiation Appendix 5 Evaporation Appendix 6 Nutrient Data Appendix 7 Chlorophyll a Bibliography , Englisch
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  • 85
    Monograph available for loan
    Monograph available for loan
    Anchorage, Alas. : Bureau of Land Management, Alaska State Office | Anchorage, Alas. : Alaska Natural History Association
    Call number: AWI G3-23-95156
    Type of Medium: Monograph available for loan
    Pages: 128 Seiten , Illustrationen, Karten , 27 cm
    ISBN: 0930931106 , 0-930931-10-6
    Language: English
    Note: Contents Foreword Introduction Oil - Catalyst for change The Haul Road - Highway to the Arctic Origins: The geologic setting Glaciers shape the land Glaciation and wildlife distribution Permafrost and the periglacial environment The Dalton Highway road log Glossary Selected references
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  • 86
    Dissertations
    Dissertations
    Wageningen : Landbouwuniversiteit Wageningen
    Call number: AWI G3-23-95005
    Description / Table of Contents: In this thesis processes and parameters associated with heat and mass transfer in frozen porous media both on a theoretical and empirical basis are studied. To obtain the required measurements some existing measuring methods needed to be improved. Firstly, an improved model has been developed for the measurement of thermal conductivity with use of the nonsteady-state probe method. The measurements of thermal conductivity indicate four separate effects caused by the freezing process. The second improved measuring method is the measurement of bulk electrical conductivity with use of time-domain r e flectometry. And the third improvement is the use of the dispersion theory in the description of relations between water content and bulk electrical conductivity or dielectric constant. This thesis shows that time-domain reflectometry can be used to measure the unfrozen water content and bulk electrical conductivity simultaneously under frozen conditions and that from the latter parameter solute redistribution can be monitored. From the measured heat flows a time delay in the forming of pore ice can be concluded. From the measured moisture transport (resulting in frost heave) a relation with some soil properties could be established. For some of the materials studied a minimum temperature gradient has been observed at which heave starts . From this and other results an effort was made to come to a synthesis of the rigid ice concept and the segregation potential concept. The thesis finishes with some recommandations in connection with the improvement of soil structure by freezing, frost heave and artificial ground freezing.
    Type of Medium: Dissertations
    Pages: 8, 204 Seiten , Illustrationen
    Language: English
    Note: Dissertation, Landbouwuniversiteit Wageningen, Wageningen, 1991 , 1 INTRODUCTION 1.1 Fields of interest 1.2 Macroscopic freezing test 1.3 Microscopic model 1.4 Aim of the thesis 1.5 Overview of the thesis 2 THEORY 2.0 Introduction to the chapter 2.1 Theory of different soil analyses 2.1.1 Particle size distribution 2.1.2 Specific surface area 2.1.3 Cation exchange capacity 2.1.4 Zeta potential 2.1.5 Water retention 2.1.6 Hydraulic conductivity 2.1.7 Thermal conductivity 2.2 Determination of soil water content by time-domain reflectometry 2. 2.1 Transmission line theory 2.2.2 Water content 2.2.3 Bulk electrical conductivity 2.3 Transfer of heat and mass 2.3.1 Moisture transport 2.3.2 Heat transport 2.3.3 Solute transport 3 NEW MODELS AND METHODS 3.0 Introduction to the chapter 3.1 A new model for the nonsteady-state probe method to measure thermal properties of porous media 3.1.0 Abstract 3.1.1 Introduction 3.1.2 Present approach 3.1.3 Experimental set-up 3.1.4 The perfect line source model 3.1.5 The modified Jaeger model 3.1.6 Gauss-Newton iteration 3.1.7 Calibration measurements 3.1.8 Conclusions 3.2 A new method to measure bulk electrical conductivity in soil using time-domain reflectometry 3.2.0 Abstract 3.2.1 Introduction 3.2.2 Measurement theory 3.2.3 Materials and methods 3.2.4 Results and discussion 3.2.5 Conclusions 3.3 Application of dispersion theory to time-domain reflectometry in soils 3.3.0 Abstract 3.3.1 Introduction 3.3.2 Dielectric constant as a function of water content 3.3.2.1 Soil as a two phase dielectric medium 3.3.2.2 Unfrozen soils 3.3.2.3 Frozen soils 3.3.3 Bulk electrical conductivity as a function of water content 3.3.4 Materials and methods 3.3.5 Results and discussion 3.3.5.1 Validation of the model for bulk electrical conductivity 3.3.5.2 Comparison with other models 3.3.6 Conclusions 3.3.7 Appendix 3.4 Description of the experiments to measure heat and mass transfer in freezing porous media 3.4.1 Experimental set-up 3.4.2 Used materials 3.4.3 Relations between soil physical and electrochemical properties 4 RESULTS AND DISCUSSION 4.0 Introduction to the chapter 4.1 Thermal conductivity of unsaturated frozen sands 4. 1.0 Abstract 4.1. 1 Introduction 4.1. 2 Experimental set-up 4.1. 3 Theoretical approach 4. 1.4 Properties of the used sands 4.1.5 Measured heat flows 4.1. 6 Measured thermal conductivities 4.1. 7 Discussion 4.2 Heat transfer 4.2.1 Heat capacity 4.2.2 Thermal conductivity 4.2.2.1 Influence of the temperature dependence of the pore ice versus unfrozen water content 4.2.2.2 Contribution of the apparent thermal conductivity 4.2.2.3 Segregated ice content 4.2.2.4 Presence of the freezing front close to the measuring probe 4.2.3 Latent heat of in situ freezing 4.2.4 Heat balances 4.2.5 Temperature fields 4.2.6 Dynamics of heat flows in frozen porous materials 4.3 Moisture transfer 4.3.1 Segregation potential 4.3.2 Influence of soil physical and electrochemical properties 4.4 Application of time-domain reflectometry to measure solute concentration during soil freezing 4.4.0 Abstract 4.4.1 Introduction 4.4.2 Materials and methods 4.4.3 Results and discussion 4.4.3.1 Influence of temperature 4.4.3.2 Influence of liquid water content 4.4.3.3 Redistribution of solutes 4.4.4 Conclusions 4.5 Influence of added solutes on moisture transfer 5 CONCLUSIONS AND FINAL DISCUSSION 5.1 General discussion 5.2 Recommandations in connection with frost in porous media , Zusammenfassung in niederländischer Sprache
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