INTERPRETATION OF SOILS

CONVENTIONAL PHOTOINTERPRETATION TECHNIQUES SUCH AS LANDFORM ANALYSES CAN BE USEFULLY SUPPLEMENTED BY PHOTOMETRIC INFORMATION EXTRACTED FROM COLOR IMAGERY. THE INTERPRETER CAN USE A REFLECTANCE RATIO OBTAINED FROM THE RED AND BLUE SPECTRAL BANDS OF THE COLOR IMAGE TO DELINEATE RELATIVE SOIL MOISTURE AND TEXTURE PATTERNS. TO PERFORM THE RATIO ANALYSES, THE INTERPRETER MUST RELATE SOIL IMAGE DENSITIES TO REFLECTANCES BY CALIBRATING THE COLOR IMAGERY THROUGH DENSITY VARIATIONS IN SHADOW IMAGES. THE PHOTOMETRIC CALIBRATION AND INTERPRETATION CAN BE EASILY ACCOMPLISHED USING A PHOTOINTERPRETATION CONSOLE. THE AERIAL CAMERA CAN THEN BE USED AS AN ACCURATE PHOTOMETER TO AUGMENT STANDARD ENGINEERING INTERPRETATION PROCESSES. /AUTHOR/

  • Authors:
    • Piech, K R
  • Publication Date: 1974-1

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Filing Info

  • Accession Number: 00203074
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 20 1974 12:00AM