CONSTRUCTION AND INTERPRETATION OF A DIGITAL THERMAL INERTIA IMAGE

An image representing the thermal inertia in the vicinity of Pisgah Crater and Lavic Lake in Southern California has been generated from visible, near IR, and thermal images taken from aircraft. Construction of the thermal inertia image required radiometric calibration and geometric rectification of the acquired images as well as registration to a topographic map. The Kahle thermal model used in the construction of the thermal inertia image requires specification of albedo, topographic slope and slope azimuth, diurnal temperature range and local meteorological conditions. Albedo information was derived from the visible image; digital topographic information was computed from digitized stereo aerial photographs; and thermal ranges were calculated by subtracting the predawn from the afternoon thermal image data. Our computed values of thermal inertia were in close agreement with published values for simular surface materials. Thermal inertia provides complementary information to conventional images of reflected solar radiation for use in lithologic mapping. /Author/

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  • Corporate Authors:

    American Society of Photogrammetry

    105 North Virginia Avenue
    Falls Church, VA  USA  22046
  • Authors:
    • Gillespie, A R
    • Kahle, A B
  • Publication Date: 1977-8

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Filing Info

  • Accession Number: 00164880
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 23 1977 12:00AM