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A technique for correcting ERTS data for solar and atmospheric effectsThe author has identified the following significant results. Based on processing ERTS CCTs and ground truth measurements collected on Michigan test site for January through June 1973 the following results are reported: (1) atmospheric transmittance varies from: 70 to 85% in band 4, 77 to 90% in band 5, 80 to 94% in band 6, and 84 to 97% in band 7 for one air mass; (2) a simple technique was established to determine atmospheric scattering seen by ERTS-1 from ground-based measurements of sky radiance. For March this scattering was found to be equivalent to that produced by a target having a reflectance of 11% in band 4, 5% in band 5, 3% in band 6, and 1% in band 7; (3) computer ability to classify targets under various atmospheric conditions was determined. Classification accuracy on some targets (i.e. bare soil, tended grass, etc.) hold up even under the most severe atmospheres encountered, while performance on other targets (trees, urban, rangeland, etc.) degrades rapidly when atmospheric conditions change by the smallest amount.
Document ID
19740013900
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Rogers, R. H. (Bendix Corp. Ann Arbor, MI, United States)
Peacock, K. (Bendix Corp. Ann Arbor, MI, United States)
Shah, N. J. (Bendix Corp. Ann Arbor, MI, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1974
Subject Category
Geophysics
Report/Patent Number
NASA-CR-136890
E74-10489
Accession Number
74N22013
Funding Number(s)
CONTRACT_GRANT: NAS5-21863
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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