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  • EARTH RESOURCES AND REMOTE SENSING  (3)
  • Reaction center
  • new taxa
  • 1985-1989  (3)
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Keywords
  • EARTH RESOURCES AND REMOTE SENSING  (3)
  • Reaction center
  • new taxa
Years
Year
  • 1
    Publication Date: 2013-08-31
    Description: For the first time in the U.S. space program, digital synthetic aperture radar (SR) data were obtained from different incidence angles during Space Shuttle Mission 41-G. Shuttle Imaging Radar-B (SIR-B) data were obtained at incidence angles of 58 deg., 45 deg., and 28 deg., on October 9, 10, and 11, 1984, respectively, for a predominantly forested study area in northern Florida. Cloud-free LANDSAT Thematic Mapper (T.M.) data were obtained over the same area on October 12. The SIR-B data were processed and then digitally registered to the LANDSAT T.M. data by scientists at the Jet Propulsion Laboratory. This is the only known digitally registered SIR-B and T.M. data set for which the data were obtained nearly simultaneously. The data analysis of this information is discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: JPL The Second Spaceborne Imaging Radar Symposium; p 159-164
    Format: application/pdf
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  • 2
    Publication Date: 2019-06-28
    Description: The study site selection is intended to serve all of the different research areas within the project, i.e., soil conditions, soil management, etc. There are seven major soil associations or soils formed on similar landscapes in the Miami Co., and over 38 soil series that were mapped. Soil sampling was conducted in some sites because of its variability in soils and cover types, variable topography, and presence of erosion problems. Results from analysis of these soil data is presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-188007 , NAS 1.26:188007
    Format: application/pdf
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  • 3
    Publication Date: 2019-07-12
    Description: The potential for using HH-polarized L-band SAR data obtained at different incidence angles from satellite altitudes to identify and map different forest cover types and stand density classes is studied. Reasonably accurate results are obtained if the speckle characteristics of the data are suppressed by low-pass spatial filters and a contextual classification algorithm. Multipolarized L-band SAR data obtained from aircraft altitudes over the same test site are also analyzed to assess the relationships between polarization and forest stand characteristics. It is found that incidence angle controls, to a very large extent, the characteristics of the data and the type of information that can be obtained from L-band, HH-polarized satellite SAR data. Cross-polarization of L-band SAR data enhances and differentiates various forest stand characteristics which cannot be defined using only the like-polarized data, and vice-versa.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Advances in Space Research (ISSN 0273-1177); 7; 11 1
    Format: text
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