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  • COMMUNICATIONS AND RADAR  (2)
  • GEOPHYSICS  (1)
  • 1
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    Unknown
    In:  Other Sources
    Publication Date: 2011-08-16
    Description: Data collected by SEASAT would be useful in developing predictive physical models for the drift and deformation of sea ice, for estimating the heat budget of the polar seas, for the optimum routing of shipping through pack ice areas, for the design of both offshore structures and shipping capable of surviving in heavy pack ice, and for the tracking of large icebergs and ice islands. The instrument package for SEASAT-A is particularly useful for studying sea ice in that the Coherent Imaging Radar (CIR), the Scanning Multifrequency Microwave Radiometer (SMMR) and the Compressed Pulse Radar Altimeter (CPRA) are not limited by the presence of clouds.
    Keywords: GEOPHYSICS
    Type: NASA, Washington Seasat-A Sci. Contrib.; p 134-135
    Format: text
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  • 2
    facet.materialart.
    Unknown
    In:  Other Sources
    Publication Date: 2011-08-18
    Description: A number of remote sensing systems deployed in satellites to view the Earth which are successful in gathering data on the behavior of the world's snow and ice covers are described. Considering sea ice which covers over 10% of the world ocean, systems that have proven capable to collect useful data include those operating in the visible, near-infrared, infrared, and microwave frequency ranges. The microwave systems have the essential advantage in observing the ice under all weather and lighting conditions. Without this capability data are lost during the long polar night and during times of storm passage, periods when ice activity can be intense. The margins of the ice pack, a region of particular interest, is shrouded in cloud between 80 and 90% of the time.
    Keywords: COMMUNICATIONS AND RADAR
    Type: JPL Spaceborne Imaging Radar Symp.; p 113-115
    Format: text
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  • 3
    Publication Date: 2011-08-19
    Description: A pilot satellite experiment is described which would employ shuttle imaging radar (SIR) to determine the applicability of imaging radar for the description of sea ice type and movement. The experimental objectives, design, and anticipated results are discussed. The results are expected to constitute an important contribution to the understanding of the role of sea ice in air-sea interactions in polar regions. It is proposed that shuttle photography, thematic mapper imagery, and SIR data be utilized in this remote sensing project.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The SIR-B Sci. Invest. Plan; 2 p
    Format: text
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