An analysis of Seasat SAR for detecting geologic linearsThe value of Seasat synthetic aperture radar (SAR) imagery for detecting geologic linears was assessed in a study of an 89,000 sq km section of New York's Adirondack Mountains. A photographic print of optically processed, 1:500,000 scale SAR imagery (one look direction) was analyzed visually, and the detected linears were compared to those recorded on a 1:250,000 scale geologic map. Eighty percent of the 4,170 km of mapped, geologic linears were detected with the SAR imagery. Moreover, nearly 6,900 km of unmapped linears were also detected. Of these, an estimated 90 percent could be observed on high altitude aerial photographs. The relationship between SAR image detection of linears and the different types of indicators (e.g., straight valleys or shorelines) is reported.
Document ID
19840030827
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yan, S.-Y. (Cornell Univ. Ithaca, NY, United States)
Philipson, W. R. (Cornell Univ. Ithaca, NY, United States)
Teng, W. L. (Cornell University Ithaca, NY, United States)