NDLI: Evaluate the application of erts-a data for detecting and mapping snow cover

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Evaluate the application of erts-a data for detecting and mapping snow cover

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1973
Description	The author has identified the following significant results. Analysis of ERTS-1 data covering the test sites in the western United States indicate that the MSS-4 and 5 spectral bands are the most useful for detecting and mapping snow cover. Of these two bands, the MSS-5 is the most consistently useful, as snow-covered areas in some MSS-4 images are nearly saturated causing some loss of detail. Snow can be readily detected and can be distinguished from clouds through a number of interpretive keys. At the ERTS-1 resolution, numerous terrestrial features not visible in lower resolution meteorological satellite data can be detected. In addition to various natural features, man-made features such as roads, electric power lines, cultivated fields, and timber cuts are visible. In two cases analyzed for the Salt-Verde Watershed in Arizona, good agreement is observed between the location of the snowline as mapped from the ERTS-1 data and as depicted on aerial snow survey charts compiled within a few days of the ERTS-1 passage. Results indicate that the snowline can be mapped in more detail from ERTS-1 imagery than can be achieved by current aerial survey methods.
File Size	538484
Page Count	11
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19730010630
Archival Resource Key	ark:/13960/t6547gj4x
Language	English
Publisher Date	1973-03-15
Access Restriction	Open
Subject Keyword	Geophysics Cost Effectiveness Earth Resources Program Watersheds Multispectral Photography Photointerpretation Clouds Meteorology Mapping Snow Cover Imagery Arizona Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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