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  • 1
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    Observations of the polar regions from satellites using active and passive microwave techniques (1985)
    In:  Other Sources
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    Publication Date: 2011-08-19
    Description: Observations of the ocean ice, ice sheets, ice edges, and ocean waves in the Antarctic, performed by the Seasat and Nimbus-7 satellites are described. Specific features of the Seasat altimeter, the SAR, the Seasat-A Scatterometer System, and the Scanning Multichannel Microwave Radiometer (SMMR) are discussed, together with the advantages and limitations of each instrument as applied to the study of ice dynamics. The Nimbus-7 SMMR algorithm for calculating sea-ice concentrations is presented. In addition, the Seasat altimeter-derived data on wind speed and wave heights in the Southern Ocean, and on the ice sheets of the Antarctica and Greenland were evaluated.
    Keywords: GEOSCIENCES (GENERAL)
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    ICESat over Arctic Sea Ice: Interpretation of Altimetric and Reflectivity Profiles (2006)
    In:  Other Sources
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    Publication Date: 2018-06-11
    Description: We provide an assessment of the ICESat altimeter for studying the Arctic Ocean and examine the magnitude of the large- and small-scale expressions of geophysical processes embedded in the elevation profiles. This analysis includes data from six surveys. ...
    Keywords: Communications and Radar
    Type: Journal of Geophysical Research; Volume 111
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    NASA TECHNICAL REPORTS
  • 3
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    Analysis of atmosphere-sea ice interactions in the Arctic basin using ESMR microwave data (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Data from the Electrically Scanning Microwave Radiometer (ESMR) on Nimbus-5 are used to determine the spatial and temporal patterns of change in microwave brightness signatures of Arctic sea ice during a full annual cycle (1973/74). Interactions of ice conditions with the atmosphere are examined using grid point data for surface air temperature and atmospheric pressure. Principal components analysis is used to examine the major elements present in the microwave and atmospheric data. Component scores from these analyses are then used in a canonical correlation analysis to determine interassociations present between the ice and atmosphere in the Beaufort Sea and the European sectors on a synoptic time scale. The synoptic weather conditions associated with the pattern of snow melt on the ice in spring 1974 are described, and a clarification of possible alternative interpretations of features identified as polynyi occurring at 80-85 deg N during the late summer 1974 is presented.
    Keywords: GEOSCIENCES (GENERAL)
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    NASA TECHNICAL REPORTS
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