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  • 2015-2019
  • 1970-1974  (3)
  • 1973  (3)
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  • 2015-2019
  • 1970-1974  (3)
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  • 1
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    Identification of agricultural crops by computer processing of ERTS MSS data (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Quantitative evaluation of computer-processed ERTS MSS data classifications has shown that major crop species (corn and soybeans) can be accurately identified. The classifications of satellite data over a 2000 square mile area not only covered more than 100 times the area previously covered using aircraft, but also yielded improved results through the use of temporal and spatial data in addition to the spectral information. Furthermore, training sets could be extended over far larger areas than was ever possible with aircraft scanner data. And, preliminary comparisons of acreage estimates from ERTS data and ground-based systems agreed well. The results demonstrate the potential utility of this technology for obtaining crop production information.
    Keywords: GEOPHYSICS
    Type: PAPER-A25 , NASA. Goddard Space Flight Center Symp. on Significant Results obtained from the ERTS-1, Vol. 1, Sect. A and B; p 205-212
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Identification of agricultural crops by computer processing of ERTS-MSS data (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Identification of agricultural crops in Dekalb, Ogle, and Lee counties in Illinois by computer processing of ERTS-1 MSS data
    Keywords: GEOPHYSICS
    Type: E73-10127 , PAPER-A25 , NASA. Goddard Space Flight Center Agr., Forestry, Range Resources; p 25
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Results of the 1971 Corn Blight Watch experiment. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-08-13
    Description: The objective of the experiment was to evaluate the use of advanced remote sensing techniques to detect the development and spread of southern corn leaf blight during the growing season across the Corn Belt region. The sampling plan involved the selection of the study area, the determination of the flightline, and the determination of a field sample design. Aspects of data acquisition are discussed, giving attention to ground data collection and aerial data collection. Details of data flow are considered along with data analysis procedures and corn blight records. The experiment results are examined, taking into account photointerpretation results, the machine analysis of multispectral scanner data results, the influence of blight on yields, and questions of crop identification.
    Keywords: GEOPHYSICS
    Type: International Symposium on Remote Sensing of Environment; Oct 02, 1972 - Oct 06, 1972; Ann Arbor, MI
    Format: text
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    NASA TECHNICAL REPORTS
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