DETECTION OF SALINE SOILS WITH SKYLAB MULTISPECTRAL SCANNER DATA

The feasibility of detecting and delineating eight areas of low, medium and high salinity levels in Cameron County, Texas, was tested by using SKYLAB S192 multispectral scanner (MSS) data. Scan lines of MSS digital data corresponding to each of the 13 S192 MSS bands were selected from bare and from adjacent naturally vegetated soil in each saline area. The S192 MSS digital data from fallow cropland could not be related to salinity levels except for MSS band 9. However, the S192 MSS digital differences between vegetated- and bare-soil areas (contrast) correlated significantly with salinity levels for six contiguous S192 bands. The highest correlations were for bands 7. The results indicate that the reflective infrared wavelengths are superior to the visible wavelengths for soil salinity detection and that soil salinity may not be readily estimatable when using bare-soil information alone. The predicitve procedures used may lead to a useful saline-soil detection and delineation scheme, but more testing is warranted.

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  • Corporate Authors:

    American Society of Photogrammetry

    105 North Virginia Avenue
    Falls Church, VA  United States  22046
  • Authors:
    • Richardson, A J
    • Gerbermann, A H
    • Gausman, H W
    • Cuellar, J A
  • Publication Date: 1976-5

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Filing Info

  • Accession Number: 00139265
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 16 1976 12:00AM