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  • EARTH RESOURCES AND REMOTE SENSING  (3,646)
  • 1975-1979  (3,646)
Collection
Keywords
Years
Year
  • 1
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    Active remote sensing of layered random media (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Analytical expressions for the backscattering cross sections have been derived for active remote sensing of an arbitrary number of random layers. These results are applicable to the interpretation of radar backscattering from vegetation and snow-ice fields. We illustrate the results by matching experimental data using the model of a three-layer random medium with air above and ground below.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: IEEE Transactions on Geoscience Electronics; GE-17; Oct. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    California desert resource inventory using multispectral classification of digitally mosaicked Landsat frames (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Procedures for adjustment of brightness values between frames and the digital mosaicking of Landsat frames to standard map projections are developed for providing a continuous data base for multispectral thematic classification. A combination of local terrain variations in the Californian deserts and a global sampling strategy based on transects provided the framework for accurate classification throughout the entire geographic region.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Integration of Landsat, Seasat, and other geo-data sources (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The paper discusses integration of Landsat, Seasat, and other geographic information sources. Mosaicking of radar data and registration of radar to Landsat digital imagery are described, and six types of geophysical data, including gravity and magnetic measurements, are integrated and analyzed using image processing techniques.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Multiple-frame, full resolution Landsat mosaicking to standard map projections (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Landsat digital data are presently available by frames whose size and location are determined by satellite orbit. The utility of Landsat data was increased by the image processing support for JPL's planetary program which provided the basic software and procedures necessary for image mosaicking. The computer software has been extended to perform this task on Landsat Multi-spectral scanner imagery and a ten frame digital mosaic of the Southern California desert has been completed. Major processing steps include location of geographic points in the digital frame and of common geographic points in adjacent frames, conversion to a map projection, lateral 'rubber sheet' correction of the digital frames, brightness correction of adjacent frames, and mosaicking of the frames to eliminate overlap and produce a single large frame.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Fall Technical Meeting; Oct 15, 1978 - Oct 20, 1978; Albuquerque, NM
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Integration of socioeconomic data and remotely sensed imagery for land use applications (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The Image Based Information System (IBIS) uses techniques of digital image processing to interface geocoded data sets, information management systems, thematic maps, and remotely sensed imagery. For two cases IBIS has been used to integrate remotely sensed imagery and socioeconomic data. In the first case thematically classified Landsat imagery covering Orange County, California is combined with census tracts and municipalities. In the second case, thematically classified Landsat imagery over Los Angeles, California is combined with census tracts.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Annual William T. Pecora Memorial Symposium; Oct 25, 1976 - Oct 29, 1976; Sioux Falls, SD
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    IBIS - A geographic information system based on digital image processing and image raster datatype (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: IBIS (Image Based Information System) is a geographic information system which makes use of digital image processing techniques to interface existing geocoded data sets and information management systems with thematic maps and remotely sensed imagery. The basic premise is that geocoded data sets can be referenced to a raster scan that is equivalent to a grid cell data set. The first applications (St. Tammany Parish, Louisiana, and Los Angeles County) have been restricted to the design of a land resource inventory and analysis system. It is thought that the algorithms and the hardware interfaces developed will be readily applicable to other Landsat imagery.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Symposium on Machine Processing of Remotely Sensed Data; Jun 29, 1976 - Jul 01, 1976; West Lafayette, IN
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Map characteristics of Landsat mosaics (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Map characteristics of the Landsat mosaics developed at JPL are considered. Procedures for digital mosaicking of Landsat frames to standard map projections were used to mosaic at full resolution ten scenes over the California desert region and twenty-one scenes over Arizona. The procedures are analyzed for horizontal positioning error (global and local) and the potential for classification error associated with the adjustment of brightness of Z values between frames; the use of this technology for the mapping of extensive features is discussed. Mosaicking facilities, techniques, mapping accuracy, and thematic mapping characteristics are described. A comparative analysis of Landsat mosaicking technology developed at Goddard Space Flight Center, IBM Gaithersburg, and USGS Flagstaff is made, and suggestions are given for algorithm development to improve systems capacity and ability to handle a variety of cases.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: ASP 79-131 , American Society of Photogrammetry, Annual Meeting; Mar 18, 1979 - Mar 24, 1979; Washington, DC
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Application of digital analysis of MSS data to agro-environmental studies (1978)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E78-10151 , NASA-CR-157245
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Feasibility of remote sensing benthic microalgae (1979)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Results of data analyses from multispectral scanning data are presented. The data was collected in July 1977 for concentration of chlorophyll in benthic microalgae (mainly diatoms) on an estuary mudflat.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-158618
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Geomorphic and landform survey of Northern Appennine Range (NAR) (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The author has identified the following significant results. An approach to landslide hazard detection was developed through the analysis of satellite imagery (LANDSAT 2) showing many landslide areas that occur on marine silts and clays in northern Appennine Range in Italy. A landslide risk score was given for large areas by narrowing and extending well defined areas, whose behavior and reflectivity variation was due to upper surface changes. Results show that this methodology allows evolution pattern of clay outflows to be distinguished.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E77-10178 , NASA-CR-153276
    Format: application/pdf
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