NDLI: Survey of the seasonal snow cover of alaska (Document No: 19730005605)

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Survey of the seasonal snow cover of alaska (Document No: 19730005605)

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1972
Description	The author has identified the following significant results. The delineation of the transient snow cover can generally be made directly from any of the RBV of MSS images. On many glaciers, however, there seems to be a relatively small difference between the reflectivities of snow and ice in the visible portion of the spectrum (corresponding to MSS bands 4 and 5). On the other hand, the reflectivity is distinctly lower for ice than for snow in the near infrared (MSS bands 6 and 7). By applying the sensors of the latter spectral bands the position of the transient snowline, indicative of the mass balance, can in many cases be determined with what appears to be a satisfactory accuracy. This circumstance should prove especially useful in studies of regional variations of glacier mass balances. It had been found that the effect of winds early in the fall seasons can be seen on the arctic slope when a light dusting of snow is present. Winds channeled by topography redistribute the snow and actually remove it from regions. After freeze up has occurred and a continuous snow cover exists it is possible to identify open water reaches on streams flowing through the region. Such cases are identifiable on the ERTS images especially on the MSS 7 images.
File Size	153278
Page Count	3
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19730005605
Archival Resource Key	ark:/13960/t2r54d602
Language	English
Publisher Date	1972-12-13
Access Restriction	Open
Subject Keyword	Geophysics Albedo Earth Resources Program Alaska Ice Glaciers Seasons Snow Cover Imagery 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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