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Using the solar elevation angle and radiance conversion to normalize forest spectral signaturesA number of spectral signals associated with forest cover were selected in order to test the usefulness of adjustments to Landsat MSS digital count values. The signatures were taken from 26 independent regional land cover inventories in the northeastern US. A regression analysis was conducted which revealed a significant relationship between digital count values and variation in the solar elevation angles in MSS bands four, six, and seven for deciduous forests and in all MSS bands for conifers. When signatures were adjusted for solar elevation angles and MSS sensor calibration differences, the dependence on solar elevation angle was reduced. The adjustments also significantly reduced the variance with Level II forest categories among scenes.
Document ID
19850028090
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Middleton, E. M.
(NASA Goddard Space Flight Center Eastern Regional Remote Sensing Applications Center, Greenbelt, MD, United States)
Lu, Y.-C.
(Computer Sciences Corp. Silver Spring, MD, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: International Symposium on Remote Sensing of Environment
Location: Ann Arbor, MI
Start Date: May 9, 1983
End Date: May 13, 1983
Accession Number
85A10241
Distribution Limits
Public
Copyright
Other

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