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Satellite geological and geophysical remote sensing of Iceland: Preliminary results of geologic, hydrologic, oceanographic, and agricultural studies with ERTS-1 imageryThe author has identified the following significant results. The wide variety of geological and geophysical phenomena which can be observed in Iceland, and particularly their very direct relation to the management of the country's natural resources, has provided great impetus to the use of ERTS-1 imagery to measure and map the dynamic natural phenomena in Iceland. MSS imagery is being used to study a large variety of geological and geophysical eruptive products, geologic structure, volcanic geomorphology, hydrologic, oceanographic, and agricultural phenomena of Iceland. Some of the preliminary results from this research projects are: (1) a large number of geological and volcanic features can be studied from ERTS-1 imagery, particularly imagery acquired at low sun angle, which had not previously been recognized; (2) under optimum conditions the ERTS-1 satellite can discern geothermal areas by their snow melt pattern or warm spring discharge into frozen lakes; (3) various maps at scales of 1:1 million and 1:500,000 can be updated and made more accurate with ERTS-1 imagery; (4) the correlation of water reserves with snowcover can improve the basis for planning electrical production in the management of water resources; (5) false-color composites (MSS) permitted the mapping of four types of vegetation: forested; grasslands, reclaimed, and cultivated areas, and the seasonal change of the vegetation, all of high value to rangeland management.
Document ID
19740006883
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Williams, R. S., Jr. (Geological Survey Reston, VA, United States)
Boeovarsson, A. (Icelandic Surveying Dept.)
Frioriksson, S. (Agr. Res. Inst.)
Palmason, G. (Natl. Energy Authority)
Rist, S. (Natl. Energy Authority)
Sigtryggsson, H. (Icelandic Meteorol. Serv.)
Saemundsson, K. (Natl. Energy Authority)
Thorarinsson, S. (Iceland Univ.)
Thorsteinsson, I. (Agr. Res. Inst.)
Date Acquired
September 3, 2013
Publication Date
December 1, 1973
Subject Category
Geophysics
Report/Patent Number
NASA-CR-136324
E74-10185
Accession Number
74N14996
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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