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  • 1975-1979  (3)
  • 1
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    A method for the processing and analysis of digital terrain elevation data (1979)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A method is presented for the processing and analysis of digital topography data that can subsequently be entered in an interactive data base in the form of slope, slope length, elevation, and aspect angle. A discussion of the data source and specific descriptions of the data processing software programs are included. In addition, the mathematical considerations involved in the registration of raw digitized coordinate points to the UTM coordinate system are presented. Scale factor considerations are also included. Results of the processing and analysis are illustrated using the Shiprock and Gallup Quadrangle test data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E81-10030 , NASA-TM-82187 , ERL-177
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Procedure for extraction of disparate data from maps into computerized data bases (1979)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A procedure is presented for extracting disparate sources of data from geographic maps and for the conversion of these data into a suitable format for processing on a computer-oriented information system. Several graphic digitizing considerations are included and related to the NASA Earth Resources Laboratory's Digitizer System. Current operating procedures for the Digitizer System are given in a simplified and logical manner. The report serves as a guide to those organizations interested in converting map-based data by using a comparable map digitizing system.
    Keywords: COMPUTER OPERATIONS AND HARDWARE
    Type: NASA-RP-1048
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    A procedure for extraction of disparate data from maps into computerized data bases (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10210 , NASA-TM-80414 , REPT-167
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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