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The cartographic application of ERTS/RBV imagery in polar regionsThe author has identified the following significant results. Results of the SR-149 experiments demonstrated the feasibility of revising coastlines on maps of Antarctica, detected gross changes in the northern limits of the three largest ice shelves in the world, and led to the discovery of unmapped geographical features in Antarctica. Analyses of MSS imagery during the investigations show positive identification and obvious changes in size, shape, and position of such features as glaciers, ice tongues, ice shelves, and fast ice when compared to the existing USGS 1:250,000 scale maps. Investigations also pointed out that accurate and meaningful photoimage mosaics can be compiled at scales of 1:500,000 and 1:1,000,000 over the Polar Regions. With respect to the Antarctic region, many thousands of square miles can be image mapped for the very first time if cloud-free imagery becomes available and at a great reduction in cost of compilation. The international scientific community will benefit from such timely products. Current maps are a necessity for proper planning for field operations, especially over the treacherous terrain of the Antarctic.
Document ID
19730021563
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Macdonald, W. R. (Geological Survey Washington, DC, United States)
Date Acquired
September 2, 2013
Publication Date
July 1, 1973
Subject Category
Geophysics
Report/Patent Number
NASA-CR-133629
E73-10953
Accession Number
73N30295
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-70243-AG-2
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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