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  • 1975-1979  (15,950)
  • 1970-1974
  • 1976  (15,950)
Collection
Language
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  • 1975-1979  (15,950)
  • 1970-1974
Year
  • 1
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/29
    In: CRREL Report, 76-29
    Description / Table of Contents: In order to verify current theoretical equations on ice bearing capacity, a heavily loaded truck was used to make successive passes over two ice bridges. Equipment, weather and the normal problems associated with field work resulted in only one complete breakthrough test. Breakthrough occurred on one bridge with a vehicle weight of 53,630 lb (24,327 kg) and an ice thickness of 17.5 in. (44.5 cm). Since only one test was completed, the conclusions drawn cannot be unequivocal. However, the results do indicate that Nevel's equation for ultimate failure of a floating ice sheet is a good working tool.
    Type of Medium: Series available for loan
    Pages: iv, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 76-29
    Language: English
    Note: Contents Abstract Preface Summary Introduction Location Test procedure Loading Site preparation and bridge construction Deflection measurements Conclusions Literature cited Appendix, Test data
    Location: AWI Archive
    Branch Library: AWI Library
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  • 2
    Call number: ZSP-201-76/30
    In: CRREL Report, 76-30
    Description / Table of Contents: The focus of this investigation was to assess the utility of remote sensing techniques in the study of land use-water quality relationships in an east central Wisconsin test area. The following types of aerial imagery were evaluated for this purpose: high altitude (60,000 ft) color, color infrared, multispectral black and white, and thermal; low altitude (less than 5000 ft) color infrared, multispectral black and white, thermal, and passive microwave. A non-imaging hand-held four-band radiometer was evaluated for utility in providing data on suspended sediment concentrations. Land use analysis includes the development of mapping and quantification methods to obtain baseline data for comparison to water quality variables. Suspended sediment loads in streams, determined from water samples, were related to land use of dfferences and soil types in three major watersheds. A multiple correlation coefficient R of 0.85 was obtained for the relationship between the 0.6-.7 incident and reflected radiation data from the hand-held radiometer and concurrent ground measurements of suspended solids in streams. Applications of the methods and baseline data developed in this investigation include: mapping and quantification of land use; input to watershed runoff models,estimation of effects of land use changes on stream sedimentation; and remote sensing of suspended sediment content of streams. High altitude color infrared imagery was found to be the most acceptable remote sensing technique forthe mapping and measurement of land use types.
    Type of Medium: Series available for loan
    Pages: vi, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 76-30
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric (SI) units of measurement lntroduction Objectives Approach and project history Study area Physical setting Cultural setting Documented pollution sources in the study area Evaluation of imagery Photographic imagery Thermal imagery PMIS imagery Land use analysis Analysis of 1972 imagery Analysis of 1974 imagery Soils of Manitowoc, East Twin and Oconto River watersheds Manitowoc River watershed East Twin River watershed Oconto River watershed Water quality data Manitowoc River East Twin River Oconto River Land use/stream sedimentation relationships Results and conclusions Sensor evaluation Land use analysis Mapping approaches Land use/sedimentation relationships Cost effectiveness analysis Recommendations and applications Selected bibliography Appendix A. Precipitation and temperature data
    Location: AWI Archive
    Branch Library: AWI Library
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  • 3
    Call number: MOP 44439 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 68 Seiten
    Language: English
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 4
    Call number: AWI A4-89-0036-1 ; AWI A4-78-0791-1 ; MOP 45231/A / Mitte
    In: Spravočnik po klimatu Antarktidy / pod red. I. M. Dolgina, Tom 1
    Description / Table of Contents: Contents: Foreword. - Geographical description of the Antarctic stations. - Solar radiation measurements in Antarctica. - Sunshine observations in Antarctica. - References. - Explanations to tables. - SECTION 1. SOLAR RADIATION AND NET RADIATION. - 1. Time of sunrise and sunset on the day dated the 15th. - 2. Sun's altitude at noon and at midnight on the day dated the 15th. - 3. Maximum Sun's altitude. - 4. Dates of the commencement and ending of the polar day and night. - 5. Mean monthly values of radiation fluxes. - 6. Mean monthly values of radiation fluxes with clear sky. - 7. Mean monthly values of total radiation fluxes with continuous total cloudiness. - 8. Mean monthly values of total radiation fluxes with continuous low cloudiness. - 9. Mean monthly values of net radiation with continuous total cloudiness. - 10. Mean monthly values of net radiation with continuous low cloudiness. - 11. Maximum values of radiation fluxes. - 12. Minimum values of radiation fluxes. - 13. Hourly and daily values of direct solar radiation at normal incidence. - 14. Hourly and daily values of direct solar radiation on a horizontal surface. - 15. Hourly and daily values of diffuse radiation. - 16. Hourly and daily values of total solar radiation. - 17. Hourly and daily values of net radiation. - 18. Extreme daily values of direct solar radiation at normal incidence. - 19. Extreme daily values of direct solar radiation on a horizontal surface. - 20. Extreme daily values of diffuse radiation. - 21. Extreme daily values of total solar radiation. - 22. Extreme daily values of net radiation. - 23. Frequency of daily values of direct solar radiation on a horizontal surface in ranges. - 24. Frequency of daily values of total solar radiation in ranges. - 25. Frequency of daily values of net radiation in ranges. - 26. Ten-day values of direct solar radiation at normal incidence. - 27. Ten-day values of direct solar radiation on a horizontal surface. - 28. Ten-day values of diffuse radiation. - 29. Ten-day values of total solar radiation. - 30. Ten-day values of absorbed radiation. - 31. Ten-day values of net radiation. - 32. Monthly and annual values of solar radiation and mean values of the surface albedo. - 33. Monthly and annual values of solar radiation with clear sky. - 34. Extreme monthly and annual values of direct solar radiation at normal incidence. - 35. Extreme monthly and annual values of direct solar radiation on a horizontal surface. - 36. Extreme monthly and annual values of diffuse radiation. - 37. Extreme monthly and annual values of total solar radiation. - 38. Extreme mean monthly and annual values of the surface albedo. - 39. Extreme values of the surface albedo. - 40. Extreme monthly and annual values of absorbed radiation. - 41. Extreme monthly and annual values of net radiation. - 42. Mean monthly values of radiation fluxes for the stations with short-period measurements. - 43.Mean monthly values of radiation fluxes for the period of anomalous decrease of the atmosphere transparency. - 44. Monthly and annual values of direct solar radiation at normal incidence. - 45. Monthly and annual values of direct solar radiation on a horizontal surface. - 46. Monthly and annual values of diffuse radiation. - 47. Monthly and annual values of total solar radiation. - 48. Mean monthly and annual values of the surface albedo. - 49. Monthly and annual values of absorbed radiation. - 50. Monthly and annual values of net radiation. - SECTION 2. SUNSHINE. - 51. Duration of sunshine. - 52. Mean duration of sunshine for the day with sunshine. - 53. Relative duration of sunshine. - 54. Number of days without sunshine. - 55. Diurnal variation of the duration of sunshine. - 56. Duration of sunshine: data for individual years. - 57. Mean sunshine duration for the day with sunshine: data for the individual years. - 58. Relative duration of sunshine: data for individual years. - 59. Number of days without sunshine: data for individual years. - Alphabetic index of stations (with the indication of the used period of observation). - List of meteorological stations ( in order of the mentioned data). - Meteorological stations location map.
    Type of Medium: Monograph available for loan
    Pages: 211 Seiten , Illustrationen
    Series Statement: Spravočnik po klimatu Antarktidy / pod red. I. M. Dolgina 1
    Language: Russian
    Note: In kyrillischer Schrift , Inhaltsverzeichnis in englischer Sprache (Seite 5-6)
    Location: AWI Reading room
    Location: AWI Reading room
    Location: MOP - must be ordered
    Branch Library: AWI Library
    Branch Library: AWI Library
    Branch Library: GFZ Library
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  • 5
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-76/7
    In: CRREL Report, 76-7
    Description / Table of Contents: This report covers a series of cantilever beam tests designed to determined the efficacy of adding reinforcement to an ice cover. Tests were run using 1-in.-diam tree branches, 3/16-in.-diam wire rope and 9/16-in. half-round wood dowels as reinforcement for both seawater and freshwater ice. The results show a definite advantage derived from using reinforcement, even when poorly placed. The results also show that reinforced ice carries a load even after it cracks. Thus, after the initial cracks there is time to remove people and equipment before final breakthrough. One must bear in mind, however, that reinforcement has disadvantages. The darker reinforcement absorbs solar radiation and thereby causes earlier weakening of the ice cover. Also, in many cases the time and effort required to place reinforcement may exceed those required to achieve equal strength by additional thickening of the ice sheet. This study has shown that understanding of the failure mechanism of ice under repetitive loading is poor and that future studies should be performed on this problem. Also, this study covered only cantilever beams. The actual field problem is strengthening a three-dimensional sheet. Hence, distribution and orientation of the reinforcement should be addressed in future studies.
    Type of Medium: Series available for loan
    Pages: v, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 76-7
    Language: English
    Note: Contents Abstract Preface Summary Conversion factors: U.S. customary to SI metric units Introduction Typical methods of constructing ice bridges Current knowledge Test program Objectives Equipment Procedure Data General Specific ice sheets Test results Conclusions Recommendations Literature cited
    Location: AWI Archive
    Branch Library: AWI Library
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  • 6
    Call number: MOP 44170
    Type of Medium: Monograph available for loan
    Pages: 61 S.
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 7
    Call number: SR 90.0008(75-17)
    In: Paper
    Type of Medium: Series available for loan
    Pages: 41 S.
    Series Statement: Paper / Geological Survey of Canada 75-17
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 8
    Call number: 21/SR 90.0917(41-42) ; MOP 40703 / Mitte
    In: Veröffentlichungen des Zentralinstituts für Physik der Erde
    Type of Medium: Series available for loan
    Pages: 201 S.
    Edition: Als Ms. gedr.
    Series Statement: Veröffentlichungen des Zentralinstituts für Physik der Erde 41
    Language: English
    Location: Reading room
    Location: MOP - must be ordered
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  • 9
    Series available for loan
    Series available for loan
    Washington, DC : Smithsonian Institution Press
    Associated volumes
    Call number: SR 90.0088(27)
    In: Smithsonian contributions to paleobiology
    Type of Medium: Series available for loan
    Pages: XXVI, 211 S.
    Series Statement: Smithsonian contributions to paleobiology 27
    Language: English
    Location: Lower compact magazine
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  • 10
    Call number: SR 90.1040(27)
    In: Serie geologica
    Type of Medium: Series available for loan
    Pages: 21 S.
    Series Statement: Serie geologica / Instituto de Geologia y Paleontologia, Academia de Ciencias de Cuba 27
    Language: Spanish
    Location: Lower compact magazine
    Branch Library: GFZ Library
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