NDLI: Facilitating the exploitation of erts-1 imagery utilizing snow enhancement techniques

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Facilitating the exploitation of erts-1 imagery utilizing snow enhancement techniques

Content Provider	NASA Technical Reports Server (NTRS)
Author	Amato, R. V. Martin, K. R.
Copyright Year	1973
Description	The author has identified the following significant results. Snow cover in combination with low angle solar illumination has been found to provide increased tonal contrast of surface feature and is useful in the detection of bedrock fractures. Identical fracture systems were not as readily detectable in the fall due to the lack of a contrasting surface medium (snow) and a relatively high sun angle. Low angle solar illumination emphasizes topographic expressions not as apparent on imagery acquired with a higher sun angle. A strong correlation exists between the major fracture-lineament directions interpreted from multi-sensor imagery (including snow-free and snow cover ERTS) and the strike of bedrock joints recorded in the field indicating the structural origin of interpreted fracture-lineaments. A fracture-annotated ERTS-1 photo base map (1:250,000 scale) is being prepared for western Massachusetts. The map will document the utilization of ERTS-1 imagery for geological analysis in comparative snow-free and snow-covered terrain.
File Size	4436328
Page Count	63
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19730016607
Archival Resource Key	ark:/13960/t8vb2x37v
Language	English
Publisher Date	1973-05-24
Access Restriction	Open
Subject Keyword	Geophysics Geological Faults Structural Properties Geology Earth Resources Program Massachusetts Photogeology Snow Cover Imagery Fracturing Image Enhancement 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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