COLOR-FILM DENSITIES FOR SOILS P. I.

THE PURPOSE WAS TO DETERMINE WHETHER COLOR AERIAL FILMS CONTAIN DENSITY INFORMATION USABLE FOR SEPARATING SOIL MAPPING UNITS. SIX TRANSECTS CROSSING A TOTAL OF 16 SOIL MAPPING UNITS WERE LOCATED IN THE FIELD AND ON COLOR AERIAL NEGATIVES. MICRODENSITOMETRIC MEASUREMENTS OF SMALL INCREMENTS ALONG THE TRANSECTS ON THE NEGATIVES WERE ANALYZED USING DISCRIMINANT ANALYSIS WITH RESPECT TO EFFECTS OF TRAINING SETS, GROUND RESOLUTION ELEMENT SIZES, AND TYPE OF FILM MATERIAL. THE OVERALL ACCURACY OF IDENTIFICATION WAS 39.7 PERCENT FOR IDEAL TRAINING SETS AND DECREASED GRADUALLY IF THESE SETS WERE MODIFIED TO SUIT PRACTICAL REQUIREMENTS. DIFFERENT GROUND RESOLUTION ELEMENTS (0.6 M SQUARE AND 2.5 M SQUARE) DID NOT SUBSTANTIALLY ALTER THE ACCURACY. THE ANALYSIS DEMONSTRATED A MARKED DIFFERENCE BETWEEN THE COLOR-NEGATIVE FILM AND A HYPOTHETICAL B&W NEGATIVE FILM. /AUTHOR/

  • Authors:
    • Cihlar, J
    • Protz, R
  • Publication Date: 1972-11

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Filing Info

  • Accession Number: 00203001
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 15 1973 12:00AM