NDLI: Evaluate the application of erts-a data for detecting and mapping sea ice

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Evaluate the application of erts-a data for detecting and mapping sea ice

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1973
Description	The author has identified the following significant results. Generally good agreement has been observed between the location of ice edges and ice concentrations as indicated on aerial observation charts and as mapped from ERTS-1 imagery. Moreover, ice surface features reported to be ridges and thaw holes are readily detected in the ERTS-1 imagery. Reported hummocks, puddles, frozen puddles, and rafted ice are not as readily detected in the imagery, although brightness variations on some ice surfaces can be distinguished, thereby suggesting their presence. In the ERTS-1 imagery, although dark new ice and nilas are difficult to detect, other younger forms of ice can be mapped and can usually be distinguished from older ice because of their lower, more uniform reflectance. A preliminary examination of the initial sample of ERTS-1 imagery collected during the spring, during the season of maximum ice extend, indicates several ice features of interest. Compact pack ice can be distinguished from coastal fast ice, and many leads can be mapped, even in the mid-Beaufort Sea. Several leads have distinct variation in reflectance.
File Size	323053
Page Count	9
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19730014725
Archival Resource Key	ark:/13960/t9p31nj6t
Language	English
Publisher Date	1973-05-24
Access Restriction	Open
Subject Keyword	Geophysics Ice Reporting Aerial Reconnaissance Multispectral Band Scanners Earth Resources Program Return Beam Vidicons Ice Mapping Imagery Arctic Regions Sea Ice 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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