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  • Books  (3,643)
  • English  (3,615)
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  • 2020-2020
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  • 1
    Monograph available for loan
    Monograph available for loan
    Pasadena, Calif. : California Inst. of Technology
    Associated volumes
    Call number: M 96.0266
    In: Report EERL
    Type of Medium: Monograph available for loan
    Pages: 197 S.
    Series Statement: Report EERL no. 80-2
    Classification:
    Seismology
    Language: English
    Location: Upper compact magazine
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  • 2
    Call number: S 05.0339(50)
    In: Initial reports of the deep sea drilling project
    Type of Medium: Series available for loan
    Pages: xxviii, 868 S. : zahlr. graph. Darst. + 3 Kt.
    Language: English
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  • 3
    Call number: M 96.0537/7 ; 15/13860/7
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xii, 956 S.
    ISBN: 0132464225
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
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  • 4
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : McGraw-Hill
    Call number: 6290
    Type of Medium: Monograph available for loan
    Pages: xv, 464 S. : graph. Darst.
    Series Statement: McGraw-Hill Series in Fundamentals of Physics
    Language: English
    Location: Upper compact magazine
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  • 5
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0537/4 ; 15/13860/4
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xi, 914 S.
    ISBN: 0132463989
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
    Location: Reading room
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  • 6
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0538 ; 15/13860
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: x, 216 S.
    ISBN: 0137229011
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
    Location: Reading room
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  • 7
    Monograph available for loan
    Monograph available for loan
    Cambridge, Mass : MIT Press
    Call number: IASS 16.90011
    Type of Medium: Monograph available for loan
    Edition: Online-Ausg.
    ISBN: 0585374848 (electronic bk.) , 9780585374840 (electronic bk.) , 0262530457 (print)
    Parallel Title: Print version Macroeconomics after Keynes
    Language: English
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  • 8
    Monograph available for loan
    Monograph available for loan
    Washington, D.C. : U.S. Dept. of Commerce
    Call number: PIK N 456-16-90161/1 ; PIK N 456-16-90161/2
    Type of Medium: Monograph available for loan
    Pages: 621 S. : graph. Darst., Kt. , gebundene Kopie in 2 Bänden
    Edition: 2nd print.
    Uniform Title: Chung-kuo chi-hou 〈engl.〉
    Language: English
    Location: A 18 - must be ordered
    Location: A 18 - must be ordered
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  • 9
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0537/6 ; 15/13860/6
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xii, 1002 S.
    ISBN: 0132464144
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
    Location: Reading room
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  • 10
    Monograph available for loan
    Monograph available for loan
    London [u.a.] : Longman
    Call number: PIK N 182-16-90350
    Type of Medium: Monograph available for loan
    Pages: XI, 686 S. , graph. Darst.
    ISBN: 0582444012
    Language: English
    Location: A 18 - must be ordered
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  • 11
    Monograph available for loan
    Monograph available for loan
    Cambridge, Mass. : Belknap Press of Harvard University
    Call number: IASS 16.90614
    Type of Medium: Monograph available for loan
    Pages: 323 S.
    ISBN: 0674794850 , 9780674794856
    Language: English
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  • 12
    Monograph available for loan
    Monograph available for loan
    New York : Vintage Books
    Call number: IASS 16.90435
    Type of Medium: Monograph available for loan
    Pages: XII, 270 S.
    ISBN: 0394513576 , 039473954x (pbk.) , 9780394739540 (pbk.)
    Language: English
    Branch Library: RIFS Library
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  • 13
    Monograph available for loan
    Monograph available for loan
    Boston : Beacon Press
    Call number: IASS 16.90473
    Type of Medium: Monograph available for loan
    Pages: XLII, 465 S. , graph. Darst.
    ISBN: 0807015067 (hbk) , 0807015075 (pbk) , 9780807015070 (pbk)
    Series Statement: The theory of communicative action Vol. 1
    Uniform Title: Handlungsrationalität und gesellschaftliche Rationalisierung 〈engl.〉
    Language: English
    Branch Library: RIFS Library
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  • 14
    Monograph available for loan
    Monograph available for loan
    Fort Collins : Dept. of Atmospheric Science, Colorado State University
    Call number: MOP 35141
    Type of Medium: Monograph available for loan
    Pages: 54 S. , Ill.
    Language: English
    Location: MOP - must be ordered
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  • 15
    Call number: MOP 35293
    Type of Medium: Monograph available for loan
    Pages: 80 S. , graph. Darst.
    Series Statement: Atmospheric science paper 107
    Language: English
    Location: MOP - must be ordered
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  • 16
    Monograph available for loan
    Monograph available for loan
    London : Wykeham Publications
    Associated volumes
    Call number: AWI A5-16-89783
    In: The Wykeham science Series ; 3, 3
    Type of Medium: Monograph available for loan
    Pages: xv, 240 S. , Ill., graph. Darst. , 22 cm
    Edition: Repr.
    ISBN: 0851090400
    Series Statement: The Wykeham science series 3
    Language: English
    Note: Contents: Preface. - Symbols, units and numerical values. - 1. The nature and scope of meteorology. - 1.1. Meteorology in relation to other sciences. - 1.2. Variations in space and time. - 1.3. Applied meteorology. - 2. Physical properties of the atmosphere. - 2.1. Composition of dry air. - 2.1.1. Mean molecular weight. - 2.1.2. Dissociation and ionization. - 2.1.3. Escape to space of component molecules. - 2.2. Pressure, density and temperature. - 2.2.1. Definition of pressure. - 2.2.2. Values near sea level. - 2.2.3. Variations in the vertical. - 2.2.4. Diurnal fluctuations at upper levels. - 2.2.5. Horizontal pressure gradients. - 2.3. Water vapour. - 2.3.1. Humidity mixing ratio. - 2.3.2. Density of moist air. - 2.3.3. Saturation vapour pressure. - 2.3.4. Paths leading to saturation. - 2.3.5. Measurement of vapour pressure. - 2.3.6. Distribution of water vapour. - 3. Heat transfer. - 3.1. Radiation processes. - 3.1.1. Solar radiation: its energy distribution. - 3.1.2. The solar constant. - 3.1.3. Effect of the atmosphere and earth on solar radiation. - 3.1.4. Radiation from the earth and atmosphere. - 3.2. Convection. - 3.2.1. Adiabatic temperature changes. - 3.2.2. Adiabatic equation. - 3.2.3. Potential temperature: dry adiabatic lapse rate. - 3.2.4 Saturated adiabatic lapse rate. - 3.2.5. Stability and instability. - 3.3. Heat transfer in land and sea. - 3.3.1. Heating and cooling of soil. - 3.3.2. Heating and cooling of water. - 4. Condensation and precipitation. - 4.1. Microphysical processes. - 4.1.1 Condensation nuclei. - 4.1.2. Curvature and solute effects. - 4.1.3. Water-droplet clouds. - 4.1.4. Ice nuclei. - 4.1.5. Ice-crystal clouds. - 4.1.6. Precipitation from water clouds. - 4.1.7. Precipitation from mixed clouds. - 4.1.8. Thunderstorm electricity. - 4.2. Larger-scale processes. - 4.2.1. Surface cooling. - 4.2.2. Evaporation. - 4.2.3. Vertical motion. - 4.3. Cloud observations. - 4.3.1. Cloud genera: their heights and composition. - 4.3.2. Cloud recognition and general features. - 4.3.3. Effects of vertical wind shear. - 4.3.4. Cloud classification for forecasting. - 5. The tephigram. - 5.1. Construction of the diagram. - 5.1.1. Coordinates: area and energy. - 5.1.2. Isobars. - 5.1.3. Saturation mixing ratio lines. - 5.1.4. Saturated adiabatics. - 5.1.5. Height variation. - 5.2. Simple graphical computations. - 5.2.1. Height. - 5.2.2. Humidity elements. - 5.2.3. Condensation levels. - 5.2.4. Föhn effects. - 5.3. Precipitable water and precipitation rate. - 5.3.1. Formula and calculation. - 5.3.2. Precipitation rate. - 5.3.3. Water content of convection clouds. - 5.4. The effects of vertical motion on lapse rate. - 5.4.1. Unsaturated or saturated motion. - 5.4.2. Potential (convective) instability. - 5.5. Tephigram analysis. - 5.5.1. Latent instability. - 5.5.2. Air mass characteristics. - 6. Winds. - 6.1. Laws of motion and the earth's rotation. - 6.1.1. Newton's First and Second Laws. - 6.1.2. Nature of the earth's rotation. - 6.1.3. Effects of the earth's rotation: the Coriolis force. - 6.2. Inertial flow and geostrophic winds. - 6.2.1. Nature of inertial flow. - 6.2.2. Nature of geostrophic flow. - 6.2.3. Geostrophic wind equation. - 6.2.4. Wind and pressure near the equator. - 6.3. Gradient winds. - 6.4. Winds in the friction layer. - 6.5. Thermal winds. - 6.5.1. Vertical shear vector. - 6.5.2. Temperature control of the shear vector. - 6.5.3. Thermal wind equation and thickness charts. - 6.5.4. Hodographs and temperature advection. - 6.5.5. Jet streams. - 7. Instruments and observations. - 7.1. Routine surface observations. - 7.1.1. Pressure. - 7.1.2. Temperature and humidity. - 7.1.3. Precipitation and evaporation. - 7.1.4. Wind. - 7.1.5. Clouds and visibility. - 7.1.6. Sunshine and radiation. - 7.1.7. Ship observations. - 7.2. Upper air observations. - 7.2.1. Historical. - 7.2.2. The radiosonde: radar winds. - 7.2.3. Ozone measurements. - 7.3. World Weather Watch. - 7.4. Experiments in observation and interpretation. - 7.4.1. Pressure. - 7.4.2. Temperature and humidity. - 7.4.3. Evaporation and rainfall. - 7.4.4. Wind. - 7.4.5. Radiation. - 7.4.6. Topographical influences. - 8. Synoptic Meteorology. - 8.1. The surface weather map: an introduction. - 8.1.1. The plotting code. - 8.1.2. Pressure systems and features. - 8.1.3. Air masses. - 8.1.4. Fronts. - 8.2. Air mass characteristics. - 8.2.1. Classification. - 8.2.2. Modifications. - 8.2.3. Air masses over the British Isles. - 8.3. Frontal characteristics. - 8.3.1. The stability of a frontal surface. - 8.3.2. Equilibrium slope of a frontal surface. - 8.3.3. Frontal structure. - 8.4. Frontal depressions. - 8.4.1. The life cycle of a frontal depression. - 8.4.2. Cold front waves; depression families. - 8.4.3. Warm front waves. - 8.4.4. Secondaries at points of occlusion. - 8.5. Non-frontal depressions. - 8.5.1. Heat lows. - 8.5.2. Polar lows. - 8.5.3. Orographic lows. - 8.5.4. Tropical cyclones. - 8.5.5. Tornadoes. - 8.6. Anticyclones. - 8.6.1. General characteristics. - 8.6.2. Cold and warm anticyclones. - 8.7 Synoptic development. - 8.7.1. Convergence, divergence and vertical motion. - 8.7.2. Convergence and vorticity. - 8.7.3 Long waves. - 8.7.4. Circulation indices: blocking. - 8.8. Surface analysis. - 8.8.1. General. - 8.8.2. Representativeness of observations. - 8.8.3. METMAPS. - 9. Micrometeorology. - 9.1. The nature of airflow near the ground. - 9.1.1. Wind speeds over a uniform level surface. - 9.1.2. Flow within a fluid boundary layer. - 9.1.3. Shearing stress via the mixing length concept. - 9.1.4. The friction velocity u*. - 9.1.5. Interpretation of the mixing length concept. - 9.1.6. The wind profile equation in complete form. - 9.2. The influence of surface roughness on the wind. - 9.2.1. Roughness in the aerodynamic sense. - 9.2.2. Roughness in relation to shearing stress and mean wind speed. - 9.2.3. The drag coefficient CD. - 9.2.4. CD as a transfer coefficient. - 9.2.5. Effect of a change in surface roughness. - 9.3. Vertical transport by turbulence. - 9.3.1. Flux equations; use of electrical analogy. - 9.3.2. Heat flux and other calculations. - 9.3.3. Vertical temperature gradients in relation to turbulent exchange. - 10. The general circulation. - 10.1. General characteristics. - 10.1.1. Genesis and interactions. - 10.1.2. Time fluctuations. - 10.2. Observations. - 10.2.1. Time- and space-averaging. - 10.2.2. Tracers. - 10.3. Experiment and theory. - 10.3.1. The rotating vessel experiment. - 10.3.2. Conservation principles. - 10.3.3. Cellular models. - 10.4. Climatic zones. - 11. Weather forecasting. - 11.1. Historical survey. - 11.1.1. 1860-1920. - 11.1.2. 1920-1945. - 11.1.3. 1945-1960. - 11.1.4. 1960 onwards. - 11.2. Conventional forecasting. - 11.2.1. Pressure tendency. - 11.2.2. Making the forecast. - 11.3. Long-range forecasting. - 11.3.1. Statistical methods. - 11.3.2. Synoptic methods. - 11.3.3. Analogues. - 11.4. Numerical forecasting. - 11.4.1. The barotropic model. - 11.4.2. Later developments. - 11.5. Predictability and control. - 11.5.1. Short-range predictability. - 11.5.2. Medium-range predictability. - 11.5.3. Long-range predictability: climatic trends. - 11.5.4. Weather and climate modification. - Answers to Problems. - Subject Index. - The Wykeham Series.
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  • 17
    Monograph available for loan
    Monograph available for loan
    Rockville, MD : U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Data and Information Service,
    Call number: PIK N 454-17-90910
    Type of Medium: Monograph available for loan
    Pages: x, 290 Seiten , Diagramme, Karten , 28 cm
    Language: English
    Location: A 18 - must be ordered
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  • 18
    Monograph available for loan
    Monograph available for loan
    Stuttgart : Schweizerbart Science Publishers ; Volume 1, number 1 (1978)-
    Call number: M 18.91571
    Type of Medium: Monograph available for loan
    Pages: 134 Seiten
    ISSN: 2363-7196
    Series Statement: Global tectonics and metallogeny : special issue Vol. 10/2-4
    Classification:
    Tectonics
    Parallel Title: Erscheint auch als Global tectonics and metallogeny
    Language: English
    Location: Upper compact magazine
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  • 19
    Series available for loan
    Series available for loan
    Helsinki : Vesihallitus - National Board of Waters
    Associated volumes
    Call number: MOP Per 721(52)
    In: Publications of the Water and Environment Research Institute, 52
    Type of Medium: Series available for loan
    Pages: 57 S. , graph. Darst., Kt.
    ISBN: 9514667255
    Series Statement: Publications of the Water and Environment Research Institute 52
    Language: English
    Location: MOP - must be ordered
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  • 20
    Call number: AWI G6-18-91505
    Type of Medium: Dissertations
    Pages: 146 S. , Ill., graph. Darst.
    Language: English
    Note: Groningen, Univ., Diss., 1983 , CONTENTS: INTRODUCTION. - CHAPTER 1. ANALYTICAL AND PREPARATIVE TECHNIQUES. - 1.1. Introduction. - 1.2. Isotope mass spectrometry of H, O and C. - 1.2.1. 2H analysis of H2. - 1.2.2. 18O and 13C analysis of CO2. - 1.3. Preparation of H2 from H2O and organic compounds. - 1.3.1. Combustion and reduction system. - 1.3.1.1. Automated vacuum taps. - 1.3.1.2. Automated cold trap. - 1.3.1.3. Automated combustion. - 1.3.1,4, Membrane pump. - 1.3.2. Performance and results. - 1.3.2.1. H2O samples. - 1.3.2.1. Organic samples. - 1.4. Preparation of CO2 from H2O and organic compounds. - 1.4.1. Introduction. - 1.4.2. Review of the available methods for extracting oxygen. - 1.4.3. Sealed nickel tube pyrolysis. - 1.4.3.1. Principle. - 1.4.3.2. Realization. - 1.4.3.3. Technical details. - 1.4.3.4. Results and calibration. - 1.4.3.5. 18O analysis of some organic pounds 1.4.3.5. δ2H of hydrogen produced by the SNTP method. - 1.5. Preparation of carbon dioxide for 13C analysis. - 1.6. Separation of cellulose from wood and peat. - 1.6.1. Introduction. - 1.6.2. Separation of cellulose from wood. - 1.6.3. Separation of cellulose from peat. - 1.6.4 Nitration and drying of cellulose. - CHAPTER 2. 18O FRACTIONATION BETWEEN CO2 AND H2O. - 2.1. Introduction. - 2.2. 18O analysis of H2O. - 2.3. Equilibration with CO2. - 2.4. Mass spectrometric analyses. - 2.5. Results anddiscussion. - CHAPTER 3. FACTORS AFFECTING THE 2H/1H AND 18O/16O RATIO OF PLANT CELLULOSE. - 3.1. Survey of factors affecting the 2H/1H and 18O/16O ratio. - 3.2. Isotopic composition of precipitation. - 3.3. Leaf-water isotopic enrichment. - 3.3.1. Theoretical. - 3.3.2. Measurement of leaf-water enrichment. - 3.3.2.1. Trees. - 3.3.2.2. Bog plants. - 3.4. Biochemical fractionation. - CHAPTER 4. 2H, 18O AND 13C VARIATIONS IN TREE RINGS. - 4.1. Introduction. - 4.2. Methods and material. - 4.3. Results and discussion. - 4.3.1. Intra-ring variations. - 4.3.1.1. Late wood. - 4.3.1.2. Differences between early wood and late wood. - 4.3.2. Inter-ring variations. - CHAPTER 5. 2H, 18O AND 13C VARIATIONS IN PEAT. - 5.1. Introduction. - 5.2. δ2H, δ18O and δ13C values of bog plants. - 5.2.1. Material and method. - 5.2.2. δ18O and δ2H. - 5.2.3. δ13C 5.3. Engbertsdijksveen I. - 5.3. Introduction. - 5.3.2. Description of the local vegetational succession. - 5.3.3. Cellulose preparation. - 5.3.4. The δ2H and δ18O record. - 5.4. Engbertsdijksveen VII. - 5.4.1. Introduction. - 5.4.2. Description of the local vegetational succession. - 5.4.3. The δ2H and δ18O record. - 5.4.4. The δ13C record. - 5.5. Comparison between Engbertsdijksveen I and VII. - 5.6. Conclusions. - Appendix. - REFERENCES. - SUMMARY. - SAMENVATTING. - ACKNOWLEDGEMENTS.
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  • 21
    Monograph available for loan
    Monograph available for loan
    Catania : Instituto Internazionale di Vulcanologia
    Call number: M 18.90520
    Type of Medium: Monograph available for loan
    Pages: 205 Seiten , Illustrationen : , 2 Karten
    Language: English
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  • 22
    Monograph available for loan
    Monograph available for loan
    Dublin : Department of Transport and Power, Meteorological Service
    Call number: MOP 36777
    Type of Medium: Monograph available for loan
    Pages: 72 Seiten , Illustrationen, Tabellen
    Language: English
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  • 23
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier Scientific Publ.
    Associated volumes
    Call number: AWI Bio-99-0079-2
    In: The Northwest European Pollen Flora, II
    Type of Medium: Monograph available for loan
    Pages: V, 265 S. , zahlr. Ill.
    ISBN: 0444418806
    Language: English
    Note: CONTENTS: Preface / G. C. S. Clarke and W. Punt. - 8. Solanaceae / W. Punt and M. Monna-Brands. - 9. Saxifragaceae / A. A. M. L. Verbeek-Reuvers. - 10. Boraginaceae / G. C. S. Clarke. - 11. Escalloniaceae / A. A. M. L. Verbeek-Reuvers. - 12. Grossulariaceae / A.A.M.L. Verbeek-Reuvers. - 13. Hydrangeaceae / A. A. M. L. Verbeek-Reuvers. - 14. Parnassiaceae / A. A. M. L. Verbeek-Reuvers. - 15. Plantaginaceae / G. C. S. Clarke and M. R.Jones. - 16. Valerianaceae / G. C. S. Clarke and M. R. Jones. - 17. Aceraceae / G. C. S. Clarke and M. R. Jones. - 18. Hippuridaceae / M. S. Engel. - 19. Haloragaceae / M. S. Engel. - 20. Papaveraceae / A. J. Kalis. - Index. - Errata.
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  • 24
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/42
    In: CRREL Report, 82-42
    Description / Table of Contents: A high-resolution impulse radar profiling system was evaluated for 1) detecting the existence of sea ice which coring has revealed to exist on the bottom of the Ross Ice Shelf at Site J-9, 2) detecting the preferred horizontal c-axis azi-muthal direction of the sea ice crystals, using the voltage amplitude of the radar reflection from the sea ice bottom, and 3) determining the direction of the currents under an Antarctic ice shelf. A field program was conducted consisting of a surface radar survey on the Ross Ice Shelf at Site J-9 and surface and airborne radar profiling on the McMurdo Ice Shelf. The CRREL impulse radar system, operating at a center frequency of either 80 MHz or 20 MHz, was unable to detect the shelf bottom at Site J-9, which drilling revealed to be 416 m below the snow surface. The radar system was used to profile the McMurdo Ice Shelf both from the snow surface and from the air; a shelf thickness of about 275 m was easily detected. Theoretical considerations indicate that the bulk conductivity of the ice shelf at Site J1-9 was higher than originally anticipated, and this limited the radar sounding depth to about 405 m when operating at a frequency of 20 MHz.
    Type of Medium: Series available for loan
    Pages: iv, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 82-42
    Language: English
    Note: CONTENTS Abstract Introduction Profiling system Theoretical considerations Field program Discussion Literature cited
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  • 25
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/38
    In: CRREL Report, 82-38
    Description / Table of Contents: Extreme cold causes heavy buildup of frost, ice and condensation on many windows. It also increases the incentive for improving the airtightness of windows against heat loss. Our study shows that tightening specifications for Alaskan windows to permit only 30% of the air leakage allowed by current American airtightness standards is economically attractive. We also recommend triple glazing in much of Alaska to avoid window icing in homes and barracks. We base our conclusions on a two-year field study of Alaskan military bases that included recording humidity and temperature data, observing moisture accumulation on windows and measuring airtightness with a fan pressurization device.
    Type of Medium: Series available for loan
    Pages: v, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 82-38
    Language: English
    Note: Contents Abstract Preface Nomenclature Introduction Previous work in cold weather window performance Investigation Data acquisition and analysis Modeling the window thermal regime Moisture and ice observations Airtightness testing and analysis Annual heat loss from air leakage Results and conclusions Moisture on windows Airtightness Airtightness economics Recommendations for windows in extreme cold Airtightness Multiple glazing Literature cited Appendix A: Moisture levels and airtightness Appendix B: Dewpoint data Appendix C: Sample observations of icing
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  • 26
    Call number: ZSP-201-83/21
    In: CRREL Report, 83-21
    Description / Table of Contents: The probability density function of the gouge depths into the sediment is represented by a simple negative exponential over four decades of gouge frequency. The exceedance probability function is, therefore, e to the -lambda d, where d is the gouge depth in meters and lambda is a constant. The value of lambda shows a general decrease with increasing water depth, from 9/m in shallow water to less than 3/m in water 30 to 35 m deep. The deepest gouge observed was 3.6 m, from a sample of 20,354 gouges that have depths greater than or equal to 0.2 m. The dominant gouge orientations are usually unimodal and reasonably clustered, with the most frequent alignments roughly parallel to the general trend to the coastline. The value of N(bar) sub 1, the mean number of gouges (deeper than 0.2 m) per kilometer measured normal to the trend of the gouges, varies from 0.2 for protected lagoons to 80 in water between 20 and 38 m deep in unprotected offshore regions. The distribution of the spacings between gouges as measured along a sampling track is a negative exponential. The form of the frequency distribution of N sub 1 varies with water depth and is exponential for lagoons and shallow offshore areas, previously skewed for 10 to 20 m depths off the barrier islands, and near-normal for deeper water. As a Poisson distribution gives a reasonable fit to the N sub 1 distributions for all water depths, it is suggested that gouging can be taken as approximating a Poisson process in both space and time. The distributions of the largest values per kilometer of gouge depths, gouge widths, and the heights of the lateral embankment of sediments plowed from the gouges are also investigated.
    Type of Medium: Series available for loan
    Pages: 40 Seiten , Illustrationen, 1 Karte
    Series Statement: CRREL Report 83-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background and environmental setting Data collection and terminology Data analysis Gouge depths Gouge orientation Gouge frequency Extreme value analysis Applications to offshore design Gouge depth Extreme value statistics Burial depths Conclusion Literature cited Appendix A: Detailed bathymetric map of the Alaskan portion of the Beaufort Sea
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  • 27
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    Call number: ZSP-201-83/12
    In: CRREL Report, 83-12
    Description / Table of Contents: This paper documents the development and verification of two finite difference models that solve the general two-dimensional form of the heat conduction equation, using the alternative-direction implicit method. Both can handle convective, constant flux, specified temperature and semi-infinite boundaries. The conducting medium may be composed of many materials. The first program, ADI, solves for the case where no change of state occurs. ADIPC solves for case where a freeze/thaw change of phase may occur, using the apparent heat capacity method. Both models are verified by comparison to analytical results.
    Type of Medium: Series available for loan
    Pages: 74 Seiten , Illustrationen
    Series Statement: CRREL Report 83-12
    Language: English
    Note: CONTENTS Abstract Preface Introduction Finite differences applied to heat transfer Heat conduction equation Boundary conditions Phase change Computer program ADDATA, the data subroutine TRIDIG, the matrix solver ISOTHM, the isotherm finider ADI, main program ADEPC, main program Verification of ADI Comparison of ADI with analytical results Comparison of ADI with experimental results Verification of ADIPC Comparison of ADIPC with analytical results-the Neumann solution Comparison of ADIPC with analytical results-two-dimensional phase change verification User instruction for ADI User instruction for ADIPC Conclusions Literature cited Appendix A. Program INFSUM and sample input and output for program ADI Appendix B. Program ADIPC and sample input and output
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  • 28
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    Call number: ZSP-201-83/16
    In: CRREL Report, 83-16
    Description / Table of Contents: The presence of snow on the ground can impose limitations on the mobility of wheeled and tracked vehicles. Snow depth and density are the two most easily measured snow properties that can be related to mobility over snow. Existing models of snowpack accumulation and ablation processes and models of internal snowpack structure were examined to determine if a model of the snowpack can be developed for use in predicting the snow parameters that affect mobility. Simple models, such as temperature index models, do not provide sufficient snowpack details, and the more detailed models require too many measured inputs. Components of the various models were selected from a basis of a snowpack model for predicting snow properties related to mobility over snow. Methods of obtaining the input data from some components are suggested, and areas where more development is needed are described.
    Type of Medium: Series available for loan
    Pages: 34 Seiten , Illustrationen
    Series Statement: CRREL Report 83-16
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Conversion of metric units Introduction Review of existing models Accumulation models Ablation models Using existing models for studying mobility Proposed snowpack model for mobility studies Model components Implementation of the model Developing input data Conclusions Literature cited
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  • 29
    Call number: ZSP-201-83/22
    In: CRREL Report, 83-22
    Description / Table of Contents: A new experimental method for measuring the soil-water diffusivity of frozen soil under isothermal conditions is introduced. The theoretical justification of the method is presented and the feasibility of the method is demonstrated by experiments conducted using marine-deposited clay. The measured values of the soil-water diffusivity are found comparable to reported experimental data.
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    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-22
    Language: English
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  • 30
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/26
    In: CRREL Report, 83-26
    Description / Table of Contents: Ice accreted on high-speed rotors operating in supercooled fog can be thrown off by centrifugal force, creating severe unbalance and dangerous projectiles. A simple force balance analysis indicates that the strength of accreted ice and its adhesive strength can be obtained by measuring the thickness of the accretion, the location of the separation, the rotor speed, and the density. Such an analysis was applied to field and laboratory observations of self-shedding events. The results agree reasonably well with other observations.
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    Pages: 13 Seiten , Illustrationen
    Series Statement: CRREL Report 83-26
    Language: English
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  • 31
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-84/24
    In: CRREL Report, 84-24
    Description / Table of Contents: This report describes the growth characteristics and crystalline textures of urea ice sheets which are now used extensively in the Cold Regions Research and Engineering Lab. (CRREL) test basin for modeling sea ice. The aims of the report are to describe the different kinds of crystalline texture encountered in urea ice sheets and to show that even small variations in texture can drastically influence the mechanical behavior of urea ice sheets. Standard petrographic techniques for studying microstructure in thin sections were used on 24 urea ice sheets. These investigations entailed observations of the crystalline texture of the ice (including details of the subgrain structure), grain size measurements, and studies of the nature and extent of urea entrapment and drainage patterns in the ice. Increased knowledge of the factors controlling the crystalline characteristics of urea ice sheets has progressed to the point where test basin researchers at CRREL are now able to fabricate ice sheets with prescribed structures leading to predictable mechanical properties. Originators supplied keywords include: Sea ice, and Mechanical properties.
    Type of Medium: Series available for loan
    Pages: iv, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 84-24
    Language: English
    Note: Contents: Abstract Preface Introduction Objectives Analytical techniques Procedures for growing urea ice sheets Analysis of the crystalline structure of urea ice Characteristics of urea ice Results and discussion Ice sheet no. 1 Ice sheet no. 2 Ice sheet no. 3 Ice sheet no. 4 Ice sheet no. 5 Ice sheet no. 6 Ice sheet no. 7 Ice sheet no. 8 Ice sheet no. 9 Ice sheet no. 10 Ice sheet no. 11 Ice sheet no. 12 Ice sheet no. 13 Ice sheet no. 14 Ice sheet no. 15 Ice sheet no. 16 Ice sheet no. 17 Ice sheet no. 18 Ice sheet no. 19 Ice sheet no. 20 Ice sheet no. 21 Ice sheet no. 22 Ice sheet no. 23 Ice sheet no. 24 Urea concentrations in test tank solution and ice Discussion and conclusions E/σf ratio Thickness of incubation layer Crystal properties Literature cited Appendix A: Thin sections of urea ice sheets
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  • 32
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-84/15
    In: CRREL Report, 84-15
    Description / Table of Contents: Measurements of meltwater pH from annual layers of South Pole firn and ice samples ranging in age from 40 to 2000 years B.P. show that precipitation at this remote site has a higher natural acidity than that expected from atmospheric equilibrium with CO2. The average pH of deaerated (CO2-free) samples was 5.64 + or - 0.08, while air-equilibrated samples averaged 5.37 + or - 0.008, a pH that is about a factor of two more acidic than the expected background pH of 5.65. The observed 'excess' acidity can be accounted for by natural SO4(2)- and NO(3)- levels in the samples probably originating from non-anthropogenic H2SO4 and HNO3. Because of the presence of these naturally occurring acids in South Pole precipitation, a pH of 5.4 is considered a more representative baseline reference pH for acid precipitation studies.
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    Pages: ii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 84-15
    Language: English
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  • 33
    Call number: ZSP-201-84/9
    In: CRREL Report, 84-9
    Description / Table of Contents: This report presents the results of the first phase of a test program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. In Phase I, 222 constant-strain-rate uni-axial compression tests were performed on ice samples from ten multi-year pressure ridges to examine the magnitude and variation of ice strength within and between pressure ridges. A limited number of constant-strain-rate compression and tension tests, constant-load compression tests, and conventional triaxial tests were also performed on ice samples from a multi-year floe to provide preliminary data for developing ice yield criteria and constitutive laws for multi-year sea ice. Data are presented on the strength, failure strain, and modulus of multi-year sea ice under different loading conditions. The statistical variation of ice strength within and between pressure ridges is examined, as well as the effects of ice temperature, porosity, structure, strain rate and confining pressure on the mechanical properties of multi-year sea ice.
    Type of Medium: Series available for loan
    Pages: v, 107 Seiten , Illustrationen
    Series Statement: CRREL Report 84-9
    Language: English
    Note: CONTENTS Abstract Preface Introduction Field Sampling Site selection and description Ice sampling procedures Shipping and storage of ice samples Testing Techniques Multi-year Pressure Ridge Tests Ice description Sampling scheme and test variables Uniaxial compressive strength Residual compressive strength Failure strains Initial tangent modulus Statistical Variations in Ice Strength Differences in strength above and below level ice Sources of the variation in strength Shape of the strength histograms Multi-year Floe Ice Tests Ice description Uniaxial compressive strength Constant-load compression tests Constant-strain-rate tension tests Triaxial tests Conclusions Literature Cited Appendix A: Structural profile of a multi-year pressure ridge core Appendix B: Ridge uniaxial compression test data Appendix C: Structural profile of the continuous multi-year floe core Appendix D: Multi-year floe test data
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  • 34
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-84/6
    In: CRREL Report, 84-6
    Description / Table of Contents: An expression relating aerosol growth to cold environmental conditions was developed. This was accomplished by solving the diffusion equation with the method of Laplace transformation. The series solution was expressed in terms of the dimensionless parameters K (ratio of vapor density over droplet surface to droplet density), ω (ratio of environmental vapor density at time zero to vapor density over droplet surface), and dimensionless time τ (ratio of product of diffusion coefficient D and time t to square of initial radius of condensation nucleus). To take into account the variation of the vapor density over the surface of an acidic condensation nucleus due to the continuous dilution of the droplet, the solution was obtained by assuming various levels of constant vapor concentration. The final expression [R/R sub o - 1 = 2.4917 x 10 to the minus 18th power) exp(0.0737 θ) (P sub RHS/25) x (100-P sub RHS) τ to the 0.9890 powder] can be used to compute the value of R once the values of initial radius R sub o, relative humidity P sub RH, percent of relative humidity at the droplet surface P sub RHS, and environmental temperature θ are given.
    Type of Medium: Series available for loan
    Pages: vi, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 84-6
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature General background The problem Method of solution Results and discussion Conclusions Literature cited Appendix: Evaluation of rn's in equation 25
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  • 35
    Call number: MOP 41371 / Mitte
    In: WMO / World Meteorological Organization
    Type of Medium: Series available for loan
    Pages: X, 145 Seiten , Illustrationen
    Language: English
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  • 36
    Call number: ZSP-980-69
    In: 2nd Working Meeting "Radioisotope Application and Radiation Processing in Industry", Part 1, 1 to 48
    In: ZfI-Mitteilungen, Nr. 69
    Type of Medium: Series available for loan
    Pages: 480 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 69
    Language: English
    Note: Contents of Part 1 S. Niese: Reactor neutron activation analysis of industrial materials R.P. Gardner, K. Verghese: Use of Monte Carlo methods in the calibration and design optimization of radiation gauges and analyzers R. Otto, P. Hecht: On labelling with generator nuclides M. Richter: Measurement of residence time distribution with radiotracers using periodic pseudo-random binary signal sequences J. Schoen: A computer code for tracer experiment data analysis H.-H. Deicke, J. Flachowsky, K.-P. Rudolph, N. Beiermann: Transit time measurements in technical plants by using a multichannel analyzer H. Bohne: Measurements of air currents L. Baranyai: Tracer study of simultaneous homogenization and segregation in industrial equipments N. Balabanov, N. Kapitanova: Application of radiotracer method for study of glass furnaces J. Thẏn: Evaluation of mixing particulate solids by radiotracer method H.-G. Koennecke, P. Kulicke, E. Antal, J. Jentzsch, H. Michael: Investigation of the mixing efficiency of kneading machines using radionuclides A.G. Belov, V.E. Zhuchko, Yu.S. Zamyatnin, Yu.G. Teterev, D. Rubio: Development of the nuclear-physical methods of analysis at the laboratory of nuclear reactions of the JINR R. Burek, K. Wojcik: A new concept for measuring of free moisture in solid materials N. Bachvarov, I. Georgiev, E. Manolov, P. Pavlov, H. Shukov, K. Tropolov: Process control system for fresh concrete preparation H. Baumbach: Investigation of moisture migration in the concrete of a special test construction under simulated load conditions A. Petrov, A. Sreno, H. Hristov, P. Penev, G. Georgiev: Beta-ray backscatter instruments for coating thickness measurements in electronic and electrotechnical industry W. Stuchlik, H. Kupsch: Radioactive level indicator for bulk materials in containers with calculation of the residual volume H. Baumbach, K. Fichtler, R. Melzer, D. Tietze, H. Ullrich: The determination of density variation in radiation protective walls of concrete by means of Bremsstrahlung of 1o MeV from linear accelerator D. Avramov: Modernized versions of mobile NDT laboratories V. Friedrich: Examples for radioisotope application in environment protection St. Szpilowski: Prediction of mixing length for transport of effluent in rivers A. Owczarczyk: The localization of the leakages through the dams and bottoms of large water reservoires W. Listwan: Progress in leak detection methods for underground pipelines and tanks J. Starẏ, A. Zeman, B. Havlik: Radionuclides in the investigation of the cumulation of toxic elements on alga and fish W. Richter, D. Kahl, H.-J. Grosse, F. Gleisberg: The use of an AIG-analyzer for the investigation of SO2-dispersion problems R. Goeldner, H.-J. Grosse, F. Gleisberg: Possibilities of the development of improved smoke detectors J. Adler, H.-R. Doering, H.-J. Grosse, F. Gleisberg: The use of the AIG in microelectronics P. Popp, R. Fahnert, S. Mothes, G. Oppermann: Methods for the determination of toxic compounds at work places H.-R. Doering. H.-J. Grosse: The detection of halocarbons by means of the aerosol ionization gas analyzer (AIG) E, Jaworska, I. Kaluska, G. Strzelczak: Crosslinking and free radical decay reactions in irradiated polyethylene in presence of additives J. Zahalka: Radiation modified materials in machine engineering W. Bobeth, R. Hanke, A. Heger, J. Morgenstern, H. Paessler: Technological aspects of planar structurizing on woven and knitted fabrics by localized radiation induced grafting B. Ihme, E. Maeder, A. Mally: Problems in the development of high-energy radiation processing of woven and knitted fabrics S. Nikolov. P, Panayotov, V. Diakova, M. Nikolova: Radiation modification of timber in people's republic of Bulgaria H. Dahlhelm. G. Matejko. G. Huebner: Experiments on sprouting inhibition in onions J. Thẏn: Process analysis with nuclear technique A. Merz: Axial dispersion and homogenization in chemical engineering systems A. Zeuner, F. Hartmann: Investigation of material transport in rotating dryers by aid of Lanthanum-140 D. Manr: Tracer research for modelling of Ion-exchange equipment
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  • 37
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-82/43
    In: CRREL Report, 82-43
    Description / Table of Contents: The radar signatures of ice wedges and wedge-like structures have been investigated for a variety of soil conditions. The radar used for this study emitted short sinusoidal pulses of about 10-ns duration with an approximate center frequency of 150 MHz. Most of the ice wedges existed at depths of about 1 m in a variety of silty and sandy soils with both frozen and thawed active layers. The position of the wedges was usually identified from corresponding surface features. An artificial ice wedge in coarse-grained alluvium was also profiled as well as wedge-like structures of fine silt in a coarse-grained glacial outwash. All wedges and wedge-like structures produced a hyperbolic reflection profile except when an active layer of thawed, saturated silt was present which eliminated returns from the wedges. The peaks of the hyper-bolas were sometimes masked by reflections from the permafrost table or other material interfaces, and multiple hyperbolas occurred at some sites. The dielectric constant of the host medium was often calculated from the linear portions of the hyperbolas and the results were verified by laboratory time domain reflectometry measurements per-formed on field samples. In some cases, hyperbolic profiles originated at several meters depth suggesting that deep ice wedges could be detected in areas of cold permafrost.
    Type of Medium: Series available for loan
    Pages: iv, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 82-43
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Objectives and procedures Equipment used Radar TDR Definitions Massive ice Results Artificial wedge: Norwich, Vermont Ice wedges in sand: Fish Creek, Alaska Ice wedges: Prudhoe Bay, Alaska Ice wedges under thawed fine-grained soils: North Slope, Alaska Wedge-like soil structures: Ft. Greely, Alaska TDR measurements Summary and concluding remarks Literature cited Appendix A: Brief discussion of dispersion
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  • 38
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-82/41
    In: CRREL Report, 82-41
    Description / Table of Contents: Many of the important factors influencing the choice of appropriate aquifer test procedures are presented. The concepts of bias, accuracy and spatial variabil­ity are explained. The definitions of a number of aquifer parameters are devel­oped from basic principles demonstrating the underlying assumptions and limita­tions. The parameters considered are: piezometric head, hydraulic conductiv­ity/intrinsic permeability, flow direction, specific discharge magnitude, transmissivity, volumetric flow rate, total porosity, effective porosity, aver­age linear velocity, storage coefficient, specific yield, dispersion coefficient-aquifer dispersivity. For each parameter several techniques are described, evaluated and ranked in terms of perceived potential accuracy, simplicity and value to contaminant transport studies. It must be stressed, however, that the evaluations are based principally upon theoretical grounds, and not upon actual conduct of the described procedures.
    Type of Medium: Series available for loan
    Pages: iv, 111 Seiten , Illustrationen
    Series Statement: CRREL Report 82-41
    Language: English
    Note: CONTENTS Abstrac Preface Introduction Purpose Scope Concept of accuracy Test selection Definition of parameters Piezometric head Use of piezometers Hydraulic conductivity Flow direction Specific discharge magnitude Transmissivity Volumetric flow rate Porosity Average linear velocity Storage coefficient-specific yield Aquifer dispersivity Parameter estimation techniques Piezometric head Hydraulic conductivity Direction and magnitude of specific discharge vector Transmissivity Volumetric flow rate Total porosity Average linear velocity Storage coefficient Specific yield Effective porosity Aquifer dispersivity-dispersion coefficients Conclusions Literature cited
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  • 39
    Call number: ZSP-201-82/39
    In: CRREL Report, 82-39
    Description / Table of Contents: Observations of a 4.4-m-high brine step in the McMurdo Ice Shelf, Antarctica, show that it has migrated about 1.2 km in 4 years. The present brine wave is overriding an older brine-soaked layer. This migration is proof of the dynamic nature of the step, which is the leading edge of a brine wave that originated at the shelf edge after a major break-out of the McMurdo Ice Shelf. The inland boundary of brine penetration is characterized by a series of descending steps that are believed to represent terminal positions of separate intrusions of brine of similar origin. The inland boundary of brine percolation is probably controlled largely by the depth at which brine encounters the firn/ ice transition (43 m). However, this boundary is not fixed by permeability considerations alone, since measurable movement of brine is still occurring at the inland boundary. Freeze-fractionation of the seawater as it migrates throught the ice shelf preferentially precipitates virtually all sodium sulfate, and concomitant removal of water by freezing in the pore spaces of the infiltrated firm produces residual brines approximately six times more concentrated than the original seawater.
    Type of Medium: Series available for loan
    Pages: v, 35 Seiten , Illustrationen
    Series Statement: CRREL Report 82-39
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Analytical techniques Radio echo profiling Core drilling Results and discussion Brine infiltration survey Brine layer steps Brine infiltration characteristics Brine infiltration mechanisms at inland boundary Confirmation of brine depths by drilling Density and temperature profiles Ice shelf freeboard Brine upwelling Brine chemistry Conclusions Literature cited
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  • 40
    Call number: ZSP-201-82/37
    In: CRREL Report, 82-37
    Description / Table of Contents: This report presents a Landsat-derived land cover map of the northwest portion of the Arctic National Wildlife Refuge, Alaska. The report is divided into two parts. The first is devoted to the land cover map with detailed descriptions of the mapping methods and legend. The second part is a description of the study area. The classification system used for the maps is an improvement over existing methods of describing tundra vegetation. It is a comprehensive method of nomenclature that consistently applies the same criteria for all vegetation units. It is applicable for large- and small-scale mapping and is suitable for describing vegetation complexes, which are common in the patterned-ground terrain of the Alaskan Arctic. The system is applicable to Landsat-derived land cover classifications. The description of the study area focuses on five primary terrain types: flat thaw-lake plains, hilly coastal plains, foothills, mountainous terrain, and river flood plains. Topography, landforms, soils and vegetation are described for each terrain type. The report also contains area summaries for the Landsat-derived map categories. The area summaries are generated for the five terrain types and for the 89 townships within the study areas. Two land cover maps at 1:250,000 are included.
    Type of Medium: Series available for loan
    Pages: 68 Seiten , Illustrationen, 2 Karten
    Series Statement: CRREL Report 82-37
    Language: English
    Note: CONTENTS Abstract Preface Foreword Introduction A land cover map of the ANWR study area Legend development Mapping method Results Discussion Description of the ANWR study area General description Description of specific terrain types Conclusions Literature cited Appendix A: Descriptions of Landsat land cover categories for ANWR Appendix B: Area summaries Appendix C: Aproximate equivalent units in several systems of land cover, wetland and vegetation classifications used in northern Alaska Appendix D: Soil taxonomy Appendix E: Summary of principal Landsat land cover categories within the terrain types of the ANWR study area
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  • 41
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-82/36
    In: CRREL Report, 82-36
    Description / Table of Contents: Camp construction and drilling activities in 1950 at the East Oumalik drill site in northern Alaska caused extensive degradation of ice-rich, perennially frozen silt and irreversible modification of the upland terrain. In a study of the long-term degradational effects at this site, the near-surface geology was defined by drilling and coring 76 holes (maximum depth of 34 m) in disturbed and undisturbed areas and by laboratory analyses of these cores. Terrain disturbances, including bulldozed roads and excavations, camp structures and off-road vehicle trails, were found to have severely disrupted the site's thermal regime. This led to a thickening of the active layer, melting of the ground ice, thaw subsidence and thaw consolidation of the sediments. Slumps, sediment gravity flows and collapse of materials on slopes bounding thaw depressions expanded the degradation laterally, with thermal and hydraulic erosion removing materials as the depressions widened and deepened with time. Degradational processes became less active after thawed sediments thickened sufficiently to slow the increase in the depth of thaw and permit slope stabilization. The site's terrain is now irregular and hummocky with numerous depressions. Seasonal thaw depths are deeper in disturbed areas than in undisturbed areas and reflect the new moisture conditions and morphology. The severity of disturbance is much greater at East Oumalik than at another old drill site, Fish Creek. The difference results primarily from differences in the physical properties of the sediments, including the quantity and distribution of ground ice.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 82-36
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Methodology Geologic setting Camp construction and occupation Types of disturbance Degradational processes and the effective area of impact Areal effects of disturbance Topography Groundwater, surface water and drainage Sediment properties and near-surface stratigraphy Surficial processes Depth of thaw Comparison to Fish Creek Discussion and conclusions Literature cited
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  • 42
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/19
    In: CRREL Report, 83-19
    Description / Table of Contents: Small-scale laboratory experiments were conducted on model bridge piers in the CRREL test basin. The experiments were performed by pushing model ice sheets against structures and monitoring the ice forces during the ice/structure interaction. The parameters, varied during the test program, were the geometry of the bridge piers and the velocity, thickness, and flexural strength of the ice. The results are presented in the form of ice forces on sloping and vertical structures with different geometries. During ice action on sloping structures, a phenomenon of transition of failure mode from bending to crushing was observed as the ice velocity was steadily increased.
    Type of Medium: Series available for loan
    Pages: 17 Seiten , Illustrationen
    Series Statement: CRREL Report 83-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction Tests Results Ice forces on inclined structures Transition of ice action due to velocity increase Aspect ratio Bridge pier nose geometry Conclusions Literature cited
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  • 43
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-201-83/11
    In: CRREL Report, 83-11
    Description / Table of Contents: Investigations of ground radar performance over thawed and seasonally frozen silts, and sands and gravels containing artificial and natural reflectors were carried out in Alaska. The radar emitted 5-10 ns pulses, the center frequency of which was approximately 150 MHz. The artificial reflectors were metal sheets and discs and the natural reflectors were the groundwater table and interfaces between frozen and thawed material. The water table was profiled at three sites where the subsurface material was coarse-grained alluvium. Dielectric constants of 16 to 18 were measured for the thawed silts, 6 to 7 for the frozen silts and 3 to 9 for the sands and gravels. Signal penetration in the thawed high moisture content silts may be achieved only by use of a lower frequency radar, whereas in the sands and gravels greater depths may be detected with more sophisticated signal processing.
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    Pages: 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-11
    Language: English
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  • 44
    Monograph available for loan
    Monograph available for loan
    Washington D.C. : Environmental Science Services Administration National Aeronautics and Space Administration United States Air Force
    Call number: MOP 40337 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XX, 289 Seiten , Illustrationen
    Language: English
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  • 45
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/31
    In: CRREL Report, 83-31
    Description / Table of Contents: A mathematical model is described that is used to determine the maximum ice conveyance capacity of a river channel. Based upon this model, computer programs were developed that enable the ice discharge to be calculated for steady-state flow conditions. For rivers that have uniform flow, the maximum ice-conveying capacity can be described with a simple function expressed in terms of the size of the ice fragments, channel geometry, and the flow of water in the river. For nonuniform flows, the computer program determines the elevation profile of the surface layer in addition to other flow characteristics, such as the velocity and surface concentration of the ice fragments. The location along this surface profile where the ice conveyance capacity becomes less than the upstream supply is determined and is considered to be the position where a surface ice jam or ice bridge will be formed.
    Type of Medium: Series available for loan
    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 83-31
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Constitutive relationships Equations of motion Uniform flow Nonuniform flow Ice transport: Uniform flow Symmetric channel Asymmetric channel Ice transport: Nonuniform flow Further considerations Basis for model improvement Conclusions Literature cited
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  • 46
    Monograph available for loan
    Monograph available for loan
    Boston : American Meteorological Society
    Call number: MOP 40509 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 347 Seiten , Illustrationen
    Language: English
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  • 47
    Monograph available for loan
    Monograph available for loan
    [Reading, Berkshire] : [European Centre for Medium Range Weather Forecasts]
    Call number: MOP 44987 / Mitte
    Type of Medium: Monograph available for loan
    Pages: i, 97 Seiten , Illustrationen , 30 cm
    Language: English
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  • 48
    Call number: MOP 47169 / Mitte
    Type of Medium: Monograph available for loan
    Pages: I, 209 Seiten , Illustrationen , 30 cm
    Language: English
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  • 49
    Monograph available for loan
    Monograph available for loan
    Paris : Organisation Européenne de Recherches Spatiales
    Call number: MOP 41394 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 55 Seiten , Illustrationen
    Series Statement: European Space Research Organization: Scientific note 54
    Language: English
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  • 50
    Call number: ZSP-SCAR-570-6
    In: Antarctic Research Report to SCAR, No. 6
    Type of Medium: Series available for loan
    Pages: 38 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 6
    Language: English
    Note: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 83-October 84. - II. Planned Activities, October 84-October 85. - References.
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  • 51
    Call number: MOP 45321 / Mitte
    In: Antarctic research activities of the German Democratic Republic
    Type of Medium: Monograph available for loan
    Series Statement: Antarctic research activities of the German Democratic Republic : report to SCAR No 5
    Language: English
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  • 52
    Call number: MOP 45089 / Mitte
    Type of Medium: Monograph available for loan
    Pages: [55] Seiten
    Language: English
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  • 53
    Monograph available for loan
    Monograph available for loan
    Amsterdam : Elsevier
    Call number: MOP 43353 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XII, 347 Seiten , Illustrationen , 2 Beilagen , 23 cm
    Language: English
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  • 54
    Call number: MOP 45483 / Mitte
    Description / Table of Contents: The reality of subregional variability in tornado occurrence density as evidenced in the county to county variability in Missouri is examined. Reported tornadoes for the period from 1916 through 1975 were used. Demographic and geographic factors known to impact on tornado reporting efficiencies and accuracies are related to county tornado report densities by step-wise multiple linear regression techniques. The analysis suggests that over 75 percent of the county to county apparent variability in reported tornado densities in Missouri is explainable in terms of variability in population density, other related demographic variables and regional scale geographic factors.
    Type of Medium: Monograph available for loan
    Pages: xi, 86 Seiten , Illustrationen, Karten , 28 cm
    Language: English
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  • 55
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/10
    In: CRREL Report, 82-10
    Description / Table of Contents: Dielectric measurements have been performed on silt and sand samples from permafrost areas using Time Domain Reflectometry. The sample temperatures were varied from +25 °C to -25 °C, and volumetric water content was varied between oven-dry and 0.55 gH2O/cm3. The data were processed for frequencies between 0.1 and 5.0 GHz. The results show a constant K' and a low K' for frequencies up to 1 GHz. A frequency dependence seen on the data above 2 GHz is probably the result of unfrozen, adsorbed water. At moisture levels near saturation at all temperatures, these soils have excellent propagation characteristics for ground-probing radar operating below 0.3 GHz. Massive ice should be easily detectable in permafrost within a few degrees of 0 °C.
    Type of Medium: Series available for loan
    Pages: 7 Seiten , Illustrationen
    Series Statement: CRREL Report 82-10
    Language: English
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  • 56
    Call number: MOP 45822 / Mitte
    Type of Medium: Monograph available for loan
    Pages: in Auszügen
    ISBN: 0853122121 , 0470271833
    Series Statement: Ellis Horwood series in environmental sciences
    Language: English
    Note: Table of Contents Preface List of Participants Foreword Introduction Education and training in remote sensing Chapter 1 Background - the physical basis of remote sensing Chapter 2 The EARTHNET data acquisition, processing and distribution faculty Chapter 3 METEOSAT, Europe's contribution to the global weather observing system Chapter 4 Remote sensing from space: review of future plans and prospects Chapter 5 Guide to the design and specification of a primary user receiving station for meteorological and oceanographic satellite data Chapter 6 The design and implementation of DIBIAS, a digital interactive image processing system Chapter 7 A low-cost image data display system for teaching use Chapter 8 Elementary ideas of optical image processing Chapter 9 Geometrical aspects of remote sensing, space cartography Chapter 10 Statistical methods: a selective tutorial survey Chapter 11 The atmospheric correction of remotely sensed data and the quantitative determination of suspended matter in marine water surface layers Chapter 12 Remote sensing of a complex surface Chapter 13 Some legal aspects of remote sensing Chapter 14 Airborne remote sensing experiments with a fluorescent tracer Chapter 15 Remote sensing of pollution Chapter 16 Studies of dust storms from satellites Chapter 17 The use of remote sensing in hydrology in Norway Chapter 18 Radio echo sounding of ice masses: principles and applications Chapter 19 Examples of applications of digital image processing of remotely sensed phenomena Chapter 20 Sea surface fronts and temperatures Chapter 21 Remote sensing of ocean waves, currents and surface winds by dekametric radar Chapter 22 The SEASAT-1 synthetic aperture radar: introduction data reception and processing Chapter 23 Microwave radiometry and applications Chapter 24 Meteorological models and climatological data sets Chapter 25 Use of satellite images and derived meteorological parameters for weather analysis and forecast Chapter 26 The use of cinematographic methods for the presentation of atmospheric motions as revealed by remote sensing techniques from satellites Notes on Field Trips FT1 A field assessment of various forms of remote sensing imagery on theTay Estuary tidal flats FT2 Notes for field work on sea truth measurement for remote sensing verification Worksheets for Laboratory Exercises WS1 Example of an exercise in aerial photograph interpretation WS2 A case study of mid-latitude frontal cyclone structure using TIROS-N upper-air and surface observations WS3 A climatological archive from meteorological satellite data - the problems involved WS4 Interpretation of aerial infrared survey data WS5 Simple spatial filtering experiments WS6 Portable LANDSAT-type radiometer and classification of a LANDSAT scene of the Dundee area WS7 Estimation of the forest area in the County of Norfolk from LANDSAT MSS images WS8 Classification and temporal variation in Wessex using LANDSAT MSS images WS9 Mapping of the Abertay Sands using LANDSAT MSS digital data WS 10 Estimation of snow cover in the Scottish highlands from LANDSAT imagery WS 11 Snow cover determination from TIROS-N and NOAA-6 AVHRR data Index
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  • 57
    Call number: MOP 45384/2 / Mitte
    Type of Medium: Monograph available for loan
    Pages: Getrennte Zählung , Illustrationen
    Language: English
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  • 58
    Monograph available for loan
    Monograph available for loan
    Moscow : Progress Publishers
    Call number: MOP 47047 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 343 Seiten , Illustrationen
    Uniform Title: Poljanye dnevniki 〈engl.〉
    Language: English
    Note: Aus dem Russischen übersetzt
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  • 59
    Monograph available for loan
    Monograph available for loan
    Toronto : Atmospheric Environment Service, Environment Canada
    Call number: MOP 42751 / Mitte
    Type of Medium: Monograph available for loan
    Pages: V, 60, 25 Seiten , Illustrationen
    Series Statement: Canadian meteorological memoirs 25
    Language: English
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  • 60
    Series available for loan
    Series available for loan
    Moscow : Academy of Sciences of the USSR, Soviet Committee on Antarctic Research
    Associated volumes
    Call number: MOP 46294/A / Mitte
    In: USSR national report to SCAR, No. 25
    Type of Medium: Series available for loan
    Series Statement: USSR national report to SCAR 25
    Language: English
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  • 61
  • 62
    Call number: ZSP-201-80/19
    In: CRREL Report, 80-19
    Description / Table of Contents: During the period 1975-1978 the Federal Highway Administration sponsored a series of environmental engineering in­vestigations along the Yukon River to Prudhoe Bay Haul Road. In 1976 the Department of Energy joined these in­vestigations with a series of ecological projects which continue to the present. Both agencies research efforts were con­ducted on a cooperative basis with CRREL’s in-house research program. The objectives of the research focused on 1) an evaluation of the performance of the road, 2) an assessment of changes in the environment associated with the road, 3) documentation of flora and vegetation along the 577-km-long transect, 4) methodologies for revegetation and restoration, and 5) an assessment of biological parameters as indicators of environmental integrity. In support of these objectives, specific studies were undertaken that investigated the climate along the road, thaw and subsidence beneath and adjacent to the road, drainage and side slope performance, distribution and properties of road dust, vegetation distribution, vegetation disturbance and recovery, occurrence of weeds and weedy species, erosion and its control, revegetation and restoration, and construction of the fuel gas line. This report presents background, information on the region, detailed results of the road thaw subsidence and dust investigations, and summaries of revegetation, fuel gas line, vegetation distribution, soil, and weed studies.
    Type of Medium: Series available for loan
    Pages: xv, 187 Seiten , Illustrationen
    Series Statement: CRREL Report 80-19
    Language: English
    Note: CONTENTS Abstract Preface Summary Introduction Chapter 1. The road and its environment Introduction General physiography Regional climate Surficial and bedrock geology Permafrost and ground ice General biota Vegetation Floristic survey Vegetation mapping Soils and mapping Chapter 2. Roadbed performance and associated investigations Roadbed investigations Roadbed performance Performance of drainage features Performance of sideslopes Conclusions from road, drainage and sideslope performance studies Fuel gas line construction Chapter 3. Distribution and properties of road dust along the northern portion of the Haul Road Introduction Methods Results of wind direction and velocity measurements Dust load and distribution Particle size analyses of dust Chemical composition properties of dust and related samples Soil cation composition Dust impacts on vegetation Discussion and conclusions Chapter 4. Revegetation and restoration investigations Introduction Revegetation approaches Alyeska erosion control and revegetation program Weeds and weedy plants Performance of revegetation Alyeska willow cutting program CRREL restoration experiments Conclusions Revegetation recommendations General report recommendations Literature cited Appendix A: General environmental guidelines applicable to subarctic and arctic road construction Appendix B: University-based studies along the Yukon River-Prudhoe Bay Haul Road Appendix C: CRREL maps of Haul Road showing locations of all study Sites Appendix D: Additional Haul Road cross-sectional profiles Appendix E: Clay mineralogy of road-related materials Appendix F: List of reports in the Joint State/Federal Fish and Wildlife Ad­visory Team series
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  • 63
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-80/18
    In: CRREL Report, 80-18
    Description / Table of Contents: The use of ice as a structural material is common practice for certain applications in cold regions. Techniques such as surface flooding or water spraying are used to accelerate ice growth rates, thereby lengthening the winter construction season. This report examines the heat and mass transfer rates from freely falling water drops in cold air. Design equations which predict the amount of supercooling of the drops as a function of outdoor ambient temperature, drop size and distance of fall are given
    Type of Medium: Series available for loan
    Pages: v, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 80-18
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Velocity problem Heat and mass transfer problem - A single drop Heat and mass transfer - A system of drops Literature cited Appendix A: FORTRAN IV program to calculate final drop temperature, air temperatureand humidity
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  • 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-201-80/16
    In: CRREL Report, 80-16
    Description / Table of Contents: Eight species of loricate choanoflagellates (Acanthoccidae), Acanthoecopsis spiculifera, Bicosta spinifera, Bicosta antennigera, Callicantha simplex, Calliacantha multispina aff., Crinolina aperta, Diaphanoeca multionnulata, and Parvicorbicula socialis, were observed in samples obtained from the Weddell Sea during the austral summer, 1977. D. multiannulata was described for the first time from these samples; the other organisms have either been described previously or are being described at this time. The distribution of most species within the Weddell Sea was widespread. The distributional, environmental, and morphological range of A. spiculifera, B. spinifera, C. aperta, and P. socialis was expanded. Habitats in which choanoflagellates were found included the water column, the edges of ice floes, ponds on ice floes, and the interiors of ice floes. The presence of choanoflagellates within the ice indicates that there may be a closely coupled trophic relationship with the other two biological components of the ice community, the ice algae and the bacteria. The presence in the ice of seven species with both a caudal appendage and anterior projections suggests a positive relationship between this lorica configuration and the ice habitat. Mechanisms of variance of transverse costal diameters between genera may be useful to the taxonomy and phylogeny of this family.
    Type of Medium: Series available for loan
    Pages: vi, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 80-16
    Language: English
    Note: CONTENTS Introduction Literature review Objectives Materials and methods Results Observations Distribution and environmental tolerances Discussion Morphology Distribution Habitat Summary Conclusions Recommendations for future work Literature cited Appendix A Type descriptions of Acanthoecidae collected from the Weddell Sea
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  • 65
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/40
    In: CRREL Report, 82-40
    Description / Table of Contents: The use of explosives to break floating ice sheets is described, and test data are used to develop design curves that predict explosives effects as ice thickness, charge size, and charge depth vary. Application of the curves to practical problems is illustrated by numerical examples. The general features of underwater explosions are reviewed and related to ice blasting. Quasi-static plate theory is considered, and is judged to be inapplicable to explosive cratering of ice plates. The specific energy for optimized ice blasting is found to compare quite favorably with the specific energy of icebreaking ships. All available field data for ice blasting are tabulated in appendices, together with details of the re­gression analyses from which the design curves are generated.
    Type of Medium: Series available for loan
    Pages: iv, 68 Seiten , Illustrationen
    Series Statement: CRREL Report 82-40
    Language: English
    Note: CONTENTS Abstract Preface Introduction General behavior of underwater explosions Regression analysis for ice-blasting data General features of the regression curves Use of the regression curves as design curves for ice blasting Row charges and pattern charges Response of floating ice sheets to underwater explosions Specific energy and “powder factor” Summary and conclusions Literature cited Appendix A: Basic data on ice blasting Appendix B: Scaled input data Appendix C: Initial regression analysis using complete polynomial Appendix D: Regression analysis with two coefficients of the original poly­nomial deleted
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  • 66
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/30
    In: CRREL Report, 83-30
    Description / Table of Contents: Ice sheets are formed and retained in several ways in nature, and an understanding of these factors is needed before most structures can be successfully applied. Many ice sheet retention structures float and are somewhat flexible; others are fixed and rigid or semirigid. An example of the former is the Lake Erie ice boom and of the latter, the Montreal ice control structure. Ice sheet retention technology is changing. The use of timber cribs is gradually but not totally giving way to sheet steel pilings and concrete cells. New structures and applications are being tried but with caution. Ice-hydraulic analyses are helpful in predicting the effects of structures and channel modifications on ice cover formation and retention. Often, varying the flow rate in a particular system at the proper time will make the difference between whether a structure will or will not retain ice. The structure, however, invariably adds reliability to the sheet ice retention process.
    Type of Medium: Series available for loan
    Pages: iv, 39 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 83-30
    Language: English
    Note: Contents Abstract Preface Introduction Natural ice sheets Choosing an ice control structure Flexible structures Ice booms Frazil collector lines Fence booms Rigid or semirigid structures Pier-mounted booms Stone groins Artificial islands Removable gravity structures Timber cribs Weirs Pilings and dolphins Structures built for other purposes Hydroelectric dams Wicket dams Light piers and towers Bridge piers Breakwaters Ice control not using Structures Channel improvements Ice sheet tying Ice sheet bridges Conclusions Literature cited Appendix A: Ice control structure
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  • 67
    Call number: MOP 46292/B / Mitte
    In: United Kingdom Antarctic research report, 1984
    Type of Medium: Series available for loan
    Series Statement: United Kingdom Antarctic research report 1984
    Language: English
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  • 68
    Series available for loan
    Series available for loan
    Geneva : WMO
    Call number: MOP 45420 / Mitte
    Type of Medium: Series available for loan
    Pages: Getrennte Zählung , Illustrationen , 28 cm
    Language: English
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  • 69
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/19
    In: CRREL Report, 81-19
    Description / Table of Contents: Field observations support the interpretation that differences in the strength of radar returns from the ice covers of lakes on the North Slope of Alaska can be used to determine where the lake is frozen completely to the bottom. An ice/frozen soil interface is indicated by a weak return and an ice/ water interface by a strong return. The immediate value of this result is that SLAR (side-looking airborne radar) imagery can now be used to prepare maps of large areas of the North Slope showing where the lakes are shallower or deeper than 1.7m (the approximate draft of the lake ice at the time of the SLAR flights). The bathymetry of these shallow lakes is largely unknown and is not obvious from their sizes or outlines. Such information could be very useful, for example in finding suitable year-round water supplies.
    Type of Medium: Series available for loan
    Pages: iii, 17 Seiten , Illustrationen
    Series Statement: CRREL Report 81-19
    Language: English
    Note: CONTENTS Abstract Preface Introduction The experiment Results Maps of completely frozen North Slope lakes Literature cited
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  • 70
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/18
    In: CRREL Report, 81-18
    Description / Table of Contents: During the growing seasons of 1977, 1978, and 1979, revegetation techniques were studied on the Chena River Lakes Project, a flood control dam and levee near Fairbanks, Alaska, to find an optimal treatment for establishing permanent vegetation cover on the gravel structures. The treatments tested on plots at the dam andor levee involved three main variables 1 vegetation grass and clover seed andor willow cuttings, 2 mulch, mulch blanket, andor sludge, and 3 substrate gravel or fine-grained soil over the gravel base. The mulches were hay, wood-cellulose-fiber, peat moss, and Conwed Hydro Mulch 2000, which is a wood-cellulose-fiber mulch with a polysaccharide tackifier. A constant rate of fertilizer was applied to all plots except the control. A section of each plot was refertilized again in their third growing season to compare annual and biannual fertilization. The high fertilization rate produced above-average growth. Fescue, brome, and foxtail were the most productive species on the dam, while alsike cover was the most productive on the wetter levee site. When grass seed and willow cuttings were planted at the same time, willow survival and growth were reduced. Fertilization is required for at least two years to produce an acceptable permanent vegetation cover, although fine- grained soil or sludge reduces the amount of fertilizer needed in the second year. Third-year fertilization may not be necessary since the benefits of the second fertilization continue for at least two years. A sludge treatment refertilized during its second growing season produces the highest biomass recorded in this study.
    Type of Medium: Series available for loan
    Pages: ix, 59 Seiten , Illustrationen
    Series Statement: CRREL Report 81-18
    Language: English
    Note: CONTENTS Abstract Preface Abbreviations Conversion factors Summary Introduction Background Site characterization Climate Purpose Materials and methods General Moose Creek Dam site Tanana Levee site Sampling and measurement Abiotic controls on vegetation Meteorological data Soil moisture as a limiting factor Soil chemical analysis Vegetation growth and survival Moose Creek Dam site Tanana Levee site Biomass by species Roof penetration Seedling density of invading woody species Weeds Supplemental observations Sediment loss Sludge and runoff-water composition Cost analysis Conclusions Literature cited Appendix A: 1977 grass growth on 1977 dam treatments Appendix B: 1978 grass growth on 1977 dam treatments Appendix C: 1979 grass growth on 1977 dam treatments Appendix D: Grass growth on 1978 dam treatments Appendix E: 1977, 1978, and 1979 survival of willow treatments Appendix F: Grass growth on Tanana levee treatments Appendix C: Chemical analysis of sludge and runoff water
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  • 71
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/22
    In: CRREL Report, 81-22
    Description / Table of Contents: Development of the hydropower potential of Bradley Lake, Alaska, would greatly increase winter freshwater discharge from the Bradley River into Kachemak Bay, which may result in increased ice formation and related ice-induced problems. The objectives of this investigation were to describe winter surface circulation in the bay and document ice distribution patterns for predicting where additional ice might be transported if it forms. Landsat MSS bands 5 and 7 and RBV imagery with 70% cloud cover or less, taken between 1 November and 30 April each year from 1972 to 1980, were analyzed. Surface circulation patterns inferred from suspended sediment patterns and ice distribution and movement were observed and mapped from the Landsat imagery. The generalized circulation patterns indicate that any additional ice formed due to future increased winter discharge from Bradley River would be likely to accumulate along Homer Spit and to be blown into the outer bay by the dominant northerly winter winds.
    Type of Medium: Series available for loan
    Pages: vi, 43 Seiten , Illustrationen
    Series Statement: CRREL Report 81-22
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion factors Introduction Physical setting Hydrology Climate Bathymetry PhysIcal oceanography Wind effects on circulatIon Previous investigations Approach Imagery analyzed Wind and tidal data Results Suspended sediment patterns Ice distribution Generaltzed surface circulation Conclusions Literature cited Appendix A. Keys to Figures 2, 3 and 4 Appendix B. Observations made from usable Landsat Imagery Appendix C. Selected landsat images used to make observations and interpretations of surface water patterns and ice distribution
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  • 72
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/1
    In: CRREL Report, 82-1
    Description / Table of Contents: On 27 March 1964 a major earthquake struck Southern Alaska. The city of Anchorage, which contained a large part of Alaska's population, suffered loss of life and destruction of property. The time of the day, the season, and ground conditions were such that loss of life and property was minimized. The frozen ground and the ice on fresh waster bodies responded to the earthquake shocks in a seldom-observable pattern, which was noted and recorded. Changes of sea level and slides into the sea were responsible for waterfront destruction. It is concluded that the main factor that limited structural damage was the frozen state of the ground.
    Type of Medium: Series available for loan
    Pages: iv, 26 Seiten , Illustrationen
    Series Statement: CRREL Report 82-1
    Language: English
    Note: CONTENTS Abstract Preface Abstract of events Earthquakes and frozen ground The response of freshwater ice sheets to earthquake shock The earthquake disturbance in glaciated mountains Disturbed wildlife Tidal waves Summary Literature cited
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  • 73
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/27
    In: CRREL Report, 81-27
    Description / Table of Contents: Existing classifications for deposits in the glacial environment are inadequate and inconsistent. Deposits should be classified both descriptively and genetically; adequate descriptive classifications already exist. A major problem for previous genetic classifications has been that glacial deposition and the resulting deposits' properties were poorly understood. On the basis of three criteria-sediment source, uniqueness to the glacial environment, and preservation of glacier-derived properties-deposits in the glacial environment result from either of two groups of processes: primary or secondary. Primary processes release the debris of the glacier directly and form deposits that may bear properties related to the glacier and its mechanics. Their deposits are classified genetically as till and are the only deposits indicative of glaciation. In contrast, secondary processes mobilize, rework, transport and resediment debris and deposits in the glacial environment. They develop new, nonglacial properties in their deposits, while destroying or substantially modifying glacier-derived properties. Interpretation of their properties may provide information on the depositional are classified genetically according to the depositional process just as they are in other sedimentary environments. This genetic classification differs from previous classifications in that not all diamictons deposited in the glacial environment are classified as till; it is based strictly on process-related criteria. The origin of properties of glacial deposits in relation to the glacier's mechanics and environment must be recognized if the mechanisms and depositional processes of former glaciers are to be precisely understood.
    Type of Medium: Series available for loan
    Pages: iii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 81-27
    Language: English
    Note: CONTENTS Abstract Preface Introduction Criteria for process grouping Depositional processes Deposit groups-tills and nontills Comparison of melt-out and sediment flow Melt-out Sediment flow Classification of glacial deposits Conclusions Literature cited
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  • 74
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/4
    In: CRREL Report, 82-4
    Description / Table of Contents: Several proposed methods for treating the momentum flux between drifting sea ice and the underlying ocean are interpreted in terms of simple planetary-boundary-layer (PBL) turbulence theory. The classical two-layer approach, in which the solution for a thin surface layer is matched to an Ekman solution for the outer layer, is used to derive several forms of the drag law. These forms range from linear (where stress is proportional to relative speed), through quadratic (where stress is proportional to relative speed squared), to a Rossby-similarity law like that used to express frictional drag on geostrophic wind in the atmosphere. Only formulations which conform with Rossby-similarity scaling are consistent with free-drift data from the 1975 AIDJEX drift station experiment.
    Type of Medium: Series available for loan
    Pages: iv, 17 Seiten , Illustrationen
    Series Statement: CRREL Report 82-4
    Language: English
    Note: CONTENTS Abstract Preface Background Hierarchy of drag laws and simple models The momentum equation for the planetary boundary layer Linear eddy viscosity - the constant stress layer Two-layer eddy viscosity PBL scaling A dimensionless two-layer system A dimensionless two-layer system with modified stress Evaluating the drag laws Rossby similarity parameters and buoyancy effects Discussion Literature cited
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  • 75
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/6
    In: CRREL Report, 82-6
    Description / Table of Contents: The interpretation of continuous radar profiles requires an alternative geophysical means of obtaining ground dielectric information. Ground dielectric properties were measured using wide-angle reflection and refraction (WARR) soundings with a ground-probing radar set that transmits pulses f a few nanoseconds duration. The investigations, carried out over sandy gravel in interior Alaska, provided dielectric data to about a 5-m depth. The WARR soundings were displayed as individual traces allowing interference between separate events and dispersion to be observed, and the soundings were compared with continuous radar and resistivity profiles conducted concurrently to extract the maximum amount of dielectric information. The dielectric constants, derived mainly from the direct ground waves propagating along the surface, ranged from 2.9 to 7.4. Dielectric values interpreted for one site predicted the possibility of a refracted event which may have occurred during one of the soundings.
    Type of Medium: Series available for loan
    Pages: iii, 11 Seiten , Illustrationen
    Series Statement: CRREL Report 82-6
    Language: English
    Note: CONTENTS Abstract Preface Introduction Theory of ground wave propagation from a horizontal electric dipole Equipment and methods Results Site 1 Site 2 Site 3 Summary and concluding remarks Literature cited
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  • 76
    Monograph available for loan
    Monograph available for loan
    Washington, D.C. : Mineralogical Society of America
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    Call number: 11/M 19.92815
    In: Reviews in mineralogy, 1
    Type of Medium: Monograph available for loan
    Pages: vi, diverse Seitenangaben , Illustrationen, Diagramme
    Edition: fourth printing
    ISBN: 0-939950-01-4
    Series Statement: Reviews in mineralogy 1
    Language: English
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  • 77
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    Monograph available for loan
    Washington, D.C. : Mineralogical Society of America
    Associated volumes
    Call number: 11/M 19.92818
    In: Reviews in mineralogy, 20
    Type of Medium: Monograph available for loan
    Pages: xi, 369 Seiten , Illustrationen, Diagramme
    ISBN: 0-939950-24-3
    Series Statement: Reviews in mineralogy 20
    Language: English
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  • 78
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    Monograph available for loan
    Washington, D.C. : Mineralogical Society of America
    Associated volumes
    Call number: 11/M 19.92819
    In: Reviews in mineralogy, 27
    Type of Medium: Monograph available for loan
    Pages: xv, 516 Seiten , Illustrationen, Diagramme
    Edition: second printing
    ISBN: 0-939950-32-4
    Series Statement: Reviews in mineralogy 27
    Language: English
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  • 79
    Monograph available for loan
    Monograph available for loan
    New York : Wiley
    Call number: MOP 46630 / Mitte
    Type of Medium: Monograph available for loan
    Pages: Seite 1-183, 218-239, 247-281
    ISBN: 047189804X
    Series Statement: A Wiley-Interscience publication
    Language: English
    Note: Contents Chapter 1. Major Fields of Application [1.1] Introduction [1.2] Medicine; X-ray Computed Tomography [1.3] Medicine; Emission Computed Tomography [1.4] Medicine; Ultrasound CT [1.5] Astronomy [1.6] Electron Microscopy [1.7] Nuclear Magnetic Resonance [1.8] Optics [1.9] Stress Analysis, Geophysics, and Other Areas [1.10] References Chapter 2. Definition of the Radon Transform [2.1] Introduction [2.2] Two Dimensions [2.3] Three Dimensions [2.4] Extension to Higher Dimensions [2.5] Some Important Examples Chapter 3. Basic Properties [3.1] Introduction [3.2] Homogeneity [3.3] Linearity [3.4] Transform of a Linear Transformation [3.5] Shifting Property [3.6] Transform of Derivatives [3.7] Transforms Involving Hermite Polynomials [3.8] Transforms Involving Laguerre Polynomials [3.9] Derivatives of the Transform [3.10] Transform of Convolution Chapter 4. Relation to Other Transforms [4.1] Introduction [4.2] Relation to the Fourier Transform [4.3] Relation to the Gegenbauer Transform [4.4] Relation to the Hough Transform Chapter 5. Inversion [5.1] Introduction [5.2] Odd Dimension [5.3] Even Dimension [5.4] Unification and the Adjoint [5.5] Fourier Methods Chapter 6. Recent Development of Inversion Methods [6.1] Introduction [6.2] Projection-Slice Theorem [6.3] Backprojection [6.4] Backprojection of Filtered Projections [6.5] Filter of Backprojections [6.6] Iterative Methods [6.7] Three-dimensional Methods [6.8] Categorized References Chapter 7. Series Methods [7.1] Introduction [7.2] Gegenbauer Transform Pair [7.3] Circular Harmonic Expansion ( n = 2) [7.4] Spherical Harmonic Expansion (n = 3) [7.5] A Tchebycheff Transform Pair of the Second Kind [7.6] Orthogonal Function Expansions on the Unit Disk [7.7] Orthogonal Function Expansions Over the Entire Plane [7.8] Other Approaches Chapter 8. More Properties, Applications, and Generalizations [8.1] Introduction [8.2] Characterization of the Transform [8.3] A Discrete Version [8.4] Picture Restoration [8.5] Transformations in Geophysics [8.6] The Integral Equation of Potential Scattering [8.7] Partial Differential Equations [8.8] Generalizations and Other Uses Appendix A. Translation of Radon's 1917 Paper Appendix B. Generalized Functions Appendix C. Special Functions References Index
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  • 80
    Call number: MOP 46079 / Mitte
    In: DOE/ER / US Department of Energy, Office of Energy Research, 0083
    Type of Medium: Series available for loan
    Pages: 124 Seiten , Illustrationen , 28 cm
    Series Statement: DOE/ER / US Department of Energy, Office of Energy Research 0083
    Language: English
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  • 81
    Call number: 12555
    Type of Medium: Monograph available for loan
    Pages: XV, 419 Seiten , Illustrationen
    ISBN: 0444863265
    Language: English
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  • 82
    Monograph available for loan
    Monograph available for loan
    Berlin : Springer
    Associated volumes
    Call number: 13394
    In: Topics in applied physics ; 8
    Type of Medium: Monograph available for loan
    Pages: 363 Seiten , Illustrationen
    Edition: second corrected and updated edition
    Edition: Online edition Springer eBook Collection. Physics and Astronomy
    ISBN: 9783540707554 , 9783540119135 (print)
    Series Statement: Topics in Applied Physics 8
    URL: Volltext  (ZZ)
    Language: English
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  • 83
  • 84
    Call number: 10.1144/GSL.SP.1967.002.01.01 (e-book)
    In: Special publications / the Geological Society, London, Volume 2
    Type of Medium: 12
    Pages: 1 Online-Ressource (XI, 827 Seiten)
    Series Statement: Special publications / the Geological Society, London 2
    Language: English
    Note: Table of Contents Introduction Geological Society, London, Special Publications, 2, 1-11, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.01 The symposium meeting Geological Society, London, Special Publications, 2, 13-14, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.02 Part I: Symposium Papers Introduction to Part I Geological Society, London, Special Publications, 2, 15-16, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.03 Life in Pre-Cambrian and early Cambrian times John Watson Cowie Geological Society, London, Special Publications, 2, 17-35, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.04 The significance of certain trace-fossil ranges Roland Goldring Geological Society, London, Special Publications, 2, 37-39, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.05 Fluctuations in the evolution of Palaeozoic intertebrates Michael Robert House Geological Society, London, Special Publications, 2, 41-54, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.06 The origins of some Silurian enteletacean brachiopods Victor Gordon Walmsley Geological Society, London, Special Publications, 2, 55-56, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.07 Permo-Triassic extinction Frank Harold Trevor Rhodes Geological Society, London, Special Publications, 2, 57-76, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.08 Changes in terrestrial vertebrate faunas during the Mesozoic C. B. Cox Geological Society, London, Special Publications, 2, 77-89, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.09 Some Cretaceous-Tertiary marine faunal changes John Michael Hancock Geological Society, London, Special Publications, 2, 91-104, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.10 Major features of the evolution of echinoids Graeme Maxwell Philip Geological Society, London, Special Publications, 2, 105-106, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.11 Plant-insect relationships in Palaeozoic and later time Norman Francis Hughes and John Smart Geological Society, London, Special Publications, 2, 107-117, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.12 Biochemical evolution and the fossil record Lambert Beverly Halstead Tarlo Geological Society, London, Special Publications, 2, 119-132, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.13 Fossil birds and their adaptive radiation James Fisher Geological Society, London, Special Publications, 2, 133-154, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.14 General Discussion Geological Society, London, Special Publications, 2, 155-156, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.15 Part II: Documentation of the Fossil Record Introduction to Part II Geological Society, London, Special Publications, 2, 158-159, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.16 Plantae Plantae N. F. H. Geological Society, London, Special Publications, 2, 162, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.17 Chapter 1 Thallophyta—1 H. P. Banks, K. I. M. Chesters, N. F. Hughes, G. A. L. Johnson, H. M. Johnson and L. R. Moore Geological Society, London, Special Publications, 2, 163-180, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.18 Chapter 2 Thallophyta—2 M. Black, C. Downie, R. Ross and W. A. S. Sarjeant Geological Society, London, Special Publications, 2, 181-209, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.19 Chapter 3 Bryophyta and Charophyta* L. J. Grambast and W. S. Lacey Geological Society, London, Special Publications, 2, 211-217, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.20 Chapter 4 Pteridophyta—1 H. P. Banks, W. G. Chaloner and W. S. Lacey Geological Society, London, Special Publications, 2, 219-231, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.21 Chapter 5 Pteridophyta—2 H. P. Banks, M. G. Collett, F. R. Gnauck and N. F. Hughes Geological Society, London, Special Publications, 2, 233-245, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.22 Chapter 6 Gymnospermophyta K.L. Alvin, P. D. W. Barnard, T.M. Harris, N. F. Hughes, R. H. Wagner and A. Wesley Geological Society, London, Special Publications, 2, 247-268, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.23 Chapter 7 Angiospermae K. I. M. Chesters, F. R. Gnauck and N. F. Hughes Geological Society, London, Special Publications, 2, 269-288, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.24 Invertebrata Invertebrata M. J. S. R. Geological Society, London, Special Publications, 2, 290, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.25 Chapter 8 Protozoa F. T. Banner, W. J. Clarke, J. L. Cutbill, F. E. Eames, A. J. Lloyd, W. R. Riedel and A. H. Smout Geological Society, London, Special Publications, 2, 291-332, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.26 Chapter 9 Porifera and Archaeocyatha R. M. Finks and D. Hill Geological Society, London, Special Publications, 2, 333-345, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.27 Chapter 10 Coelenterata G. A. L. Johnson, I. D. Sutton, F. M. Taylor and G. Thomas Geological Society, London, Special Publications, 2, 347-378, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.28 Chapter 11 Bryozoa G. P. Larwood, A. W. Medd, D. E. Owen and R. Tavener-Smith Geological Society, London, Special Publications, 2, 379-395, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.29 Chapter 12 Brachiopoda D. V. Ager, P. Copper, G. M. Dunlop, G. F. Elliott, F. A. Middlemiss, A. J. Rowell, A. Williams and A. D. Wright Geological Society, London, Special Publications, 2, 397-421, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.30 Chapter 13 Mollusca: Amphineura, Monoplacophora and Gastropoda D. Curry and N. J. Morris Geological Society, London, Special Publications, 2, 423-430, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.31 Chapter 14 Mollusca: Cephalopoda (Nautiloidea) C.H. Holland Geological Society, London, Special Publications, 2, 431-443, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.32 Chapter 15 Mollusca: Cephalopoda (Ammonoidea) D. T. Donovan, F. Hodson, M. K. Howarth, M. R. House, E. T. Tozer and C. W. Wright Geological Society, London, Special Publications, 2, 445-460, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.33 Chapter 16 Mollusca: Cephalopoda (Coleoidea) D. T. Donovan and J. M. Hancock Geological Society, London, Special Publications, 2, 461-467, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.34 Chapter 17 Mollusca: Scaphopoda and Bivalvia N. J. Morris Geological Society, London, Special Publications, 2, 469-477, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.35 Chapter 18 Arthropoda: Protarthropoda and Trilobitomorpha J. W. Cowie, W. T. Dean, R. Goldring, W. D. I. Rolfe, A. W. A. Rushton, J. T. Temple and R. P. Tripp Geological Society, London, Special Publications, 2, 479-497, 1 January 1967, https://doi.org/10.1144/GSL.SP.1967.002.01.36
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  • 85
    Call number: MR 22.94922
    Type of Medium: Monograph available for loan
    Pages: X, 326 Seiten , Illustrationen, graphische Darstellungen, Karten
    ISBN: 0-906812-26-7 , 0-906812-25-9
    Series Statement: Shiva geology series
    Language: English
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  • 86
    Monograph available for loan
    Monograph available for loan
    London u.a. : Allen & Unwin
    Call number: MR 22.94921
    Type of Medium: Monograph available for loan
    Pages: 128 Seiten , zahlreiche Illustrationen
    ISBN: 0-04-551051-2 , 0-04-551052-0
    Language: English
    Note: Preface Acknowledgements 1 Introduction 2 Stress and strain 3 Structural symmetry 4 Structure and stratigraphical succession 5 Structures in brittle rocks: tension fractures and shear zones 6 Rock cleavage and schistosity: generalities 7 Fracture cleavage and strain-slip cleavage 8 Flow cleavage, schistosity and lineation 9 Boudinage 10 Drag-folds and parasitic folds 11 Mullion and rodding structures 12 Superposed minor structures 13 Minor structures and large-scale tectonics 14 Conclusions Bibliography Index
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  • 87
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    Series available for loan
    Berlin : VEB Deutscher Verlag der Wissenschaften
    Associated volumes
    Call number: 7120
    In: Mathematische Forschungsberichte, 23
    Type of Medium: Series available for loan
    Pages: 98 Seiten , Illustrationen
    Series Statement: Mathematische Forschungsberichte 23
    Language: English
    Note: TABLE OF CONTENTS Abstract Introduction Chapter I. The algebras H and L 1. Notation. General conventions 2. Fundamental notions and definitions 3. Geometrical interpretation 4. Summary Chapter II. Monogenic functions 1. Functions which have hypercomplex values 2. Monogenic functions 3. Representatives of monogenic functions in the Banach algebra Lγ 4. Analyticity of monogenic functions Chapter III. Some elementary monogenic functions I. Introduction 2. The inverse function ζ-1 3. The exponential function 4. The components of a power series with real coefficients 5. Trigonometric and hyperbolic functions 6. The logarithmic function 7. The inverse function ζ*-1 8. The singular manifold of (ζ-α*)-1 Chapter IV. Hypercomplex integrals and theorems of Cauchy's type 1. Introduction. Integrals of hypercomplex-valued functions 2. Integrals of monogenic functions over closed curves and surfaces 3. Cauchy's second theorem for monogenic functions of ζ 4. An application of Cauchy's second theorem Chapter V. On some results of Marcel N. Roşuleţ 1. Introduction 2. An algebra associated with Laplace's equation 3. Summary of analysis 4. On the relation between the algebras U and L Appendix. The product of two algebra elements Bibliography
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  • 88
    Call number: MOP 45523 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 58 Seiten
    Series Statement: Division of Applied Physics technical papers 3
    Language: English
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  • 89
    Call number: MOP 46357 / Mitte
    In: Studies in geophysics
    Type of Medium: Monograph available for loan
    Pages: XIV, 106 Seiten , Illustrationen
    ISBN: 0309032849
    Series Statement: Studies in geophysics
    Language: English
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  • 90
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/21
    In: CRREL Report, 82-21
    Description / Table of Contents: The acoustic emission response from fine-grained polycrystalline ice subjected to constant compressive loads was examined. A number of tests were conducted with the nominal stress ranging from 0.8 to 3.67 MPa at a temperature of -5 C. The acoustic emission response was recorded and the data are presented with respect to time and strain. The source of acoustic emissions in ice is considered in terms of the formation of both microfractures and visible fractures that develop without catastrophic failure of the ice. A model to describe the acoustic emission response is developed.
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    Pages: iv, 15 Seiten , Illustrationen
    Series Statement: CRREL Report 82-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Experimental procedures Ice specimens Mechanical test equipment Acoustic emission equipment Data recording Acoustic emission sources in ice Acoustic events and visible fracturing Source mechanisms Tests on ice single crystals General acoustic emission response Analysis of data Transient response Steady-state response Amplitude distribution Combined transient and steady-state response in the time domain Discussion Summary Literature cited
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  • 91
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/20
    In: CRREL Report, 81-20
    Description / Table of Contents: A historical review of research is presented to establish the state- of-the-art for analyzing the behavior of vehicles in shallow snow. From this review, the most comprehensive and promising model is put together to establish a first-cut performance prediction model for vehicles operating in shallow snow, slush, ice and thawing soils.
    Type of Medium: Series available for loan
    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 81-20
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Historical review Model selection Traction Resistance Slush and thawing soils Ice, hard-packed snow, packed snow River and lake ice Model use Conclusions Literature cited
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  • 92
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/21
    In: CRREL Report, 81-21
    Description / Table of Contents: The reflection of solar radiation by a snow cover in situ and the apparent influence of selected substrates were examined in wavelength bands centered at 0.81, 1.04, 1.10, 1.30, 1.50 and 1.80 micrometers. Substrates included winter wheat, timothy, corn, alfalfa, grass, concrete and subsurface layers of 'crusty' snow and ice. Reasonable qualitative agreement between measurements and theoretical predictions was demonstrated, with indications of quantitative agreement in the definition of a 'semi-infinite depth' of snow cover. It was concluded that ultimate quantitative agreement between theory and measurement will require that an 'optically effective grain size' be defined in terms of physically measuarable dimensions or meteorologically predictable characteristics of the ice crystals composing the snowpack.
    Type of Medium: Series available for loan
    Pages: iii, 17 Seiten , Illustrationen
    Series Statement: CRREL Report 81-21
    Language: English
    Note: CONTENTS Abstract Preface Introduction Experimental method Substrate preparation Experimental configuration Radiometric measurements Snow characterization Reflectance standards Data analysis Reflectance measurements Snow replica analysis Discussion of results Comparative reflectance of various substrates under snow Ablation of a snow cover Reflectance from a very light, fresh snow cover Measurements at angles other than vertical Reflectance from substrates Concluding observations Literature cited
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  • 93
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/24
    In: CRREL Report, 81-24
    Description / Table of Contents: This report develops a method of analysis for heat transmission systems operating under district heating load conditions. The method accounts for the effects of heat source and load characteristics. The use of thermal energy storage systems is outlined and advantages are given. The transmission model itself considers the following technical aspects: (1) frictional pressure losses in piping system, (2) pump characteristics, (3) pump driver characteristics, and (4) heat losses from the buried piping. The capital costs considered are the piping system and necessary pumps. Operation and maintenance costs include cost of heat loss and cost of pumping energy input. Allowances are also made for system maintenance and repair over the assumed lifetime.
    Type of Medium: Series available for loan
    Pages: vii, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 81-24
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Modes of heat transmission History and state of the art Technical aspects of heat transmission systems Heat sources Space heating loads Thermal energy storage Fluid dynamics considerations Pump drivers Buried piping systems Economic aspects of heat transmission systems Capital costs Operation and maintenance costs Problem formulation Criteria for the optimum solution The objective function Problem solution The response surface Methods of solution Sample results, conclusions and suggestions for future work Results from model calculations Conclusions and suggestions for future work Literature cited Appendix A: Computer program listing
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  • 94
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/25
    In: CRREL Report, 81-25
    Description / Table of Contents: The problem of heat conduction with phase changeAoften called the Stefan problemrincludes some of the mostintractable mathematical areas of heat transfer. Exact solutions are extremely limited and approximate methodsare widely used. This report discusses the collocation method for the heat balj ce integral approximation. The methodis applied to some standard problems of phase change-Neumann's problem-and a new solution is presented for thecase of surface convection for a semi-infinite body. Numerical results are given for soil systems and also for materialsof interest in latent heat thermal storage.
    Type of Medium: Series available for loan
    Pages: v, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 81-25
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Conversion factors Introduction Collocation method Neumann problem Specified surface heat flux Convective surface heat flux Insulated semi-infinite body Conclusion Literature cited Appendix A: Program listing for numerical quadrature of equation 28
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  • 95
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-81/26
    In: CRREL Report, 81-26
    In: Mechanics of cutting and boring, Part 7
    Description / Table of Contents: Abstract: This report deals with force, torque, energy and power in machines such as drills and boring devices, where the cutting head rotates about a central axis while penetrating parallel to that axis. Starting from a cosideration of the forces developed on individual cutting tools, or segments of cutters, the thrust and torque on a complete cutting head is assessed, and simple relationships between thrust and torque are derived. Similarly, the energy and power needed to drive the cutting head arc estimated and related to tool characteristics. Design characteristics of existing machines are compiled and analyzed to give indications of thrust, torque, power, effective tool forces, nominal thrust pressure, power density, and specific energy.
    Type of Medium: Series available for loan
    Pages: iv, 38 Seiten , Illustrationen
    Series Statement: CRREL Report 81-26
    Language: English
    Note: CONTENTS Abstract Preface Foreword Introduction Terminology Tool forces Parallel motion tools Indentation tools Head thrust, thrust per unit width, and nominal head pressure Power and power density Torque Specific energy Efficiency and performance index Power requirements for clearance of cuttings Minimum power requirements for lifting cuttings in a vertical hole Power consumption and efficiency in continuous-flight augers Air circulation Mud circulation Literature cited Appendix A: Vertical conveyance by continuous-fiight augers Appendix B: Surface areas on a helical flight and its stem
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  • 96
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/3
    In: CRREL Report, 82-3
    Description / Table of Contents: The conditions that lead to initial breakup of a solid ice on a river due to rapid water level variations are analyzed. The analysis is based on the theory of beams on an elastic foundation. First cracking is assumed to occur when the bending moment induced in the ice cover by the wave exceeds the flexural strength of the ice cover.
    Type of Medium: Series available for loan
    Pages: iv, 17 Seiten , Illustrationen
    Series Statement: CRREL Report 82-3
    Language: English
    Note: CONTENTS Abstract Preface Symbols Introduction Purpose of the study Stating the problem Fracturing of the ice cover due to the passage of surge waves Basic assumptions Derivation of the bending moments Determination of the wave characteristics Deflection of the ice Discussion and field observations Summary Literature cited
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    Branch Library: AWI Library
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  • 97
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/5
    In: CRREL Report, 82-5
    Description / Table of Contents: The problem of simultaneous heat and mass transfer in a homogeneous snow layer, with one side kept at its initial temperature and the other side with a step temperature increase, was solved for the case of constant through-flow conditions. An experimentally determined effective thermal conductivity function, i.e. Ke = 0.0014 + 0.58 G (where G is dry mass flow rate of air in g/sq cm-s), was employed in the solution. The computed nondimensional temperature distribution agreed quite well with experimental data taken under pseudo-steady state conditions with the exception of the temperature for the lowest flow rate used in the experiment. The pronounced nonlinearity of the temperature distribution was found to be a strong function of the flow rate. For sinusoidal variation of atmospheric pressure, the responding flow in the snow medium was also found to be sinusoidal. In conjunction with the diurnal temperature change, this variation facilitated the process of repeated sublimation and condensation in alternate directions and thereby produced a surface layer of approximately constant snow density.
    Type of Medium: Series available for loan
    Pages: v, 10 Seiten , Illustrationen
    Series Statement: CRREL Report 82-5
    Language: English
    Location: AWI Archive
    Branch Library: AWI Library
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  • 98
    Monograph available for loan
    Monograph available for loan
    Pasadena : California Institute of Technology
    Associated volumes
    Call number: M 96.0264
    In: Report EERL
    Type of Medium: Monograph available for loan
    Pages: ii, 305 S.
    Series Statement: Report EERL 80-01
    Classification:
    Seismology
    Language: English
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 99
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, N.J. : Prentice-Hall
    Associated volumes
    Call number: M 96.0537/3 ; 15/13860/3
    In: Proceedings
    Type of Medium: Monograph available for loan
    Pages: xii, 1101 S.
    ISBN: 0132463806
    Classification:
    B.5.
    Language: English
    Location: Upper compact magazine
    Location: Reading room
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 100
    Monograph available for loan
    Monograph available for loan
    Leipzig : Mitteldeutsche Wetterdienststelle
    Call number: MOP 36294 ; MOP 36279
    Type of Medium: Monograph available for loan
    Pages: 37, 38 S.
    Language: English
    Location: MOP - must be ordered
    Location: MOP - must be ordered
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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