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  • COMMUNICATIONS AND RADAR  (1)
  • INSTRUMENTATION AND PHOTOGRAPHY  (1)
  • 1980-1984  (2)
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  • 1
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    Deforestation, floodplain dynamics, and carbon biogeochemistry in the Amazon Basin (1984)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Three aspects of the physical geographic environment of the Amazon Basin are considered: (1) deforestation and reforestation, (2) floodplain dynamics, and (3) fluvial geomorphology. Three independent projects are coupled in this experiment to improve the in-place research and to ensure that the Shuttle Imaging Radar-B (SIR-B) experiment stands on a secure base of ongoing work. Major benefits to be obtained center on: (1) areal and locational information, (2) data from various depression angles, and (3) digital radar signatures. Analysis will be conducted for selected sites to define how well SIR-B data can be used for: (1) definition of extent and location of deforestation in a tropical moist forest, (2) definition and quantification of the nature of the vegetation and edaphic conditions on the (floodplain) of the Amazon River, and (3) quantification of the accuracy with which the geometry and channel shifting of the Amazon River may be mapped using SIR-B imagery in conjunction with other remote sensing data.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The SIR-B Sci. Invest. Plan; 7 p
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Tradeoffs among several synthetic aperture radar image quality parameters - Results of a user survey study (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The imagery obtained with the aid of synthetic aperture radars (SAR) has been applied to several remote sensing disciplines such as geologic feature mapping, oceanic phenomena studies, and land use and urban morphology studies. The successful SAR experiment on Seasat and the Shuttle demonstrated the feasibility of global radar mapping at relatively high resolution from a spaceborn platform. The present investigation is concerned with the requirements of and the tradeoffs among several SAR image quality parameters. The results are presented from a survey study concerning the interpretability of a set of SAR images. The data used to generate these images were obtained by the Seasat SAR experiments. Attention is given to image scenes and the simulation experiment, image interpretation survey results, multiple-looks, the number of looks vs resolution, and number of bits vs resolution.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Photogrammetric Engineering and Remote Sensing (ISSN 0099-1112); 49; June 198
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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