NASA Technical Reports Server (NTRS) : Geological pdf

NASA Technical Reports Server (NTRS) : Geological

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The author has identified the following significant results. A binational, multidisciplinary research effort in Iceland is directed at an analysis of MSS imagery from ERTS-1 to study a variety of geologic, hydrologic, oceanographic, and agricultural phenomena. Initial findings are: (1) recent lava flows can be delineated from older ones; (2) ERTS-1 and NOAA-2 recorded volcanic eruptions on Heimaey, Vestmann Islands; (3) coastline changes are mappable; (4) areas covered with new or residual snow can be mapped, and dark appearance of newly fallen snow on band 7 appears to be related to melting; (5) sediment plumes from discharge of glacial rivers can be delineated; (6) the area encompassed by glacial ice can be mapped, including the new position of a surging glacier, Eyjabakkajokull, and related phenomena of nunataks and moraines; (7) changes in position of rivers, lake sizes, and new lakes can be mapped; (8) low sun angle imagery enhances the morphologic expression of constructional glacial and volcanic landforms; (9) MSS color composites permit regional mapping of distribution of vegetation; and (10) at least at 1:250, 000 map scale and smaller, ERTS-1 imagery provides a means of updating various types of maps of Iceland and will permit the

compilation of maps specifically aimed at those dynamic environmental phenomena which impact on the Icelandic economy

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 5/1/1973
• Year: 1973
• Book Topics/Themes: NASA Technical Reports Server (NTRS), AGRICULTURE, GEOLOGICAL SURVEYS, GEOPHYSICS, HYDROLOGY, ICELAND, IMAGERY, OCEANOGRAPHY, COASTAL WATER, EARTH RESOURCES PROGRAM, ECONOMIC FACTORS, MULTIDISCIPLINARY RESEARCH, SNOW COVER, VOLCANOLOGY, Williams, R. S., Jr. [Principal Investigator

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