Satellite Geology and Photogeomorphology An Instructional Manual for Data Integration
*Lambert A. Rivard
Satellite data analysis has now become a mainstream of much geological reconnaissance and detailed mapping. There are currently some 30 Earth Observation imaging satellites acquiring data daily, with ground resolutions ranging from 30 m to 0.5 m, with concurrent archives growing exponentially.
In the author’s view satellite geology has tended to minimise, or overlook, the
continuing value of archives of pre-satellite conventional vertical stereoscopic mapping
air photography.
This monograph
is a portfolio of 97 data sets designed to demonstrate to students
and workers in the fields of land geoscience and land management the value in preliminary
site appraisals or mapping projects of the use of two data sources in a reciprocal
combined manner – conventional stereo airphotos and 30 m ground resolution
Landsat subscenes.
“For every site, geomorphology is the first thing encountered”. While geotechnical
knowledge is paramount, both quantitative and qualitative knowledge should be regarded
as important. The initial role of the physical geologist is qualitative, to establish
what geological phenomena exist in a site. “Once that is correctly decided, the subsequent
investigations can readily be developed, given the requisite time and finance,
to provide the degree of quantitative knowledge necessary”
(Hutchinson, p38).
Québec, March 2011 Lambert A. Rivard
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