THE USE OF COLOR AERIAL PHOTOGRAPHY IN THE RECONNAISSANCE OF SOILS AND ROCKS

MAN'S QUEST FOR MORE INTIMATE KNOWLEDGE OF THE STRUCTURE OF THE EARTH, AND THE DISTRIBUTION OF SOILS AND ROCKS HAS BEEN THE SUBJECT OF A CONTINUING INVESTIGATION AS MAN HAS PROGRESSED FROM THE STONE AGE TO THE NUCLEAR AGE. THIS PAPER DESCRIBES THE SPECIALIZED AREA OF THE INTERPRETATION OF SOILS AND ROCKS WHICH CAN BE OBTAINED FROM AERIAL PHOTOGRAPHY IN COLOR. SEVERAL CONTROLLED TESTS ARE DESCRIBED, IN THE EASTERN COASTAL PLAIN, BENNETTSVILLE, SOUTH CAROLINA, AND IN THE WESTERN DESERT, NEAR PHOENIX, ARIZONA. OTHER WORK IN COLOR PHOTOGRAPHY IS DESCRIBED, AND SOME RESULTS ARE GIVEN, IN USING AERIAL COLOR FILM, THE THREE LAYER EMULSION PRESENTS A MORE READILY UNDERSTOOD SPECTRAL RELATIONSHIP THAN CAN BE OBTAINED FROM BLACK AND WHITE FILM, AND THE RECONNAISSANCE OF INACCESSIBLE AREAS WITH THEIR ROCK STRUCTURES CAN BE MORE RAPIDLY ANALYZED WITH THE AID OF THE DISTANT VIEW OF AERIAL PHOTOGRAPHY THAN SOLELY BY GROUND EXPLORATION. THE BENNETTSVILLE, SOUTH CAROLINA TEST DEMONSTRATED THAT GEOLOGISTS NEVER HAVING VISITED THE GROUND SITE COULD MAKE AN ANALYSIS OF SOIL CONDITIONS WITH THE USE OF 1:20,000 SCALE AERIAL PHOTOGRAPHY IN COLOR AND IN INFRARED COLOR, WITH SPARSE GENERALIZED GROUND INFORMATION. A HIGHLY SKILLED SOILS ENGINEER PERFORMING INTERPRETATION ON THE PHOENIX, ARIZONA, TEST PHOTOGRAPHY REACHED A VALID CONCLUSION AS TO THE TYPE OF SOILS IN THE DESERT AREA WHEN HE WAS HALFWAY THROUGH THE STUDY OF THE 1:40,000 SCALE AERIAL COLOR PHOTOGRAPHY ALONG WITH INFRARED COLOR PHOTOGRAPHY. TECHNICAL QUESTIONS REGARDING THE FALL-OFF IN COLOR DENSITY WITH THE USE OF WIDE ANGLE LENSES ARE ANSWERED. AERIAL COLOR PHOTOGRAPHY IS ANOTHER TOOL WHICH CAN BE USED TO ASSIST SOILS ENGINEERS IN THE RECONNAISSANCE OF SOILS AND ROCKS WHEN EMPLOYED TO ITS FULL CAPABILITY AND WITHIN ITS LIMITATIONS. /AUTHOR/

  • Supplemental Notes:
    • Vol 8, No 2, PP 8-16, 10 FIG, 24 REF
  • Authors:
    • Anson, A
  • Publication Date: 0

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00229078
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:38AM