USE OF REMOTE SENSING TECHNIQUES FOR GEOLOGICAL HAZARD SURVEYS IN VEGETATED URBAN REGIONS

摘要

Throughout this report the term "space photograph" refers to photos taken from satellites (Gemini, Apollo, Skylab, ERTS, etc.) orbiting the earth (approximately 100-500 miles high). On the other hand, usage of the term aerial photograph has been restricted to photos taken from non-orbiting aircraft within the earth's atmosphere (generally less than 70,000 feet). Geologists should bear in mind, however, that air photo interpretation is a tool aiding in the solution of field oriented geologic problems and should be used in conjunction with field work. Photo interpretation is merely a means to reach an end and is not an end within itself.nThe primary objective of this study is to examine the feasibility of using aerial photography for lithologic differentiation in a heavily vegetated region.