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The blue-to-green reflectance ratio and lake water qualityCorrelations between the relative values of the blue and green reflectances of a lake and water quality indices, such as depth of photic zone, Secchi disk transparency, attenuation coefficient, and chlorophyll concentration, have been observed during an intensive satellite, aircraft, and surface vessel study of Lake Ontario and Conesus Lake. Determinations of blue and green reflectances from Skylab S190A color imagery are in excellent agreement with values obtained from small-scale color imagery from aircraft. Further, the accuracy of the satellite data appears within that required for extrapolation to the water quality indices. The study has also determined that changes in chlorophyll, lignin, and humic acid concentration can be discriminated by the behavior of the blue-to-green reflectance ratio and the reflectances of the green and red bands.
Document ID
19790026987
Document Type
Reprint (Version printed in journal)
Authors
Piech, K. R. (Calspan Corp. Buffalo, NY, United States)
Schott, J. R. (Calspan Corp. Buffalo, N.Y., United States)
Stewart, K. M. (New York, State University Buffalo, N.Y., United States)
Date Acquired
August 9, 2013
Publication Date
October 1, 1978
Publication Information
Publication: Photogrammetric Engineering and Remote Sensing
Volume: 44
Subject Category
ENVIRONMENT POLLUTION
Funding Number(s)
CONTRACT_GRANT: NSF GA-37768
CONTRACT_GRANT: NSF GA-32207
CONTRACT_GRANT: NAS9-13336
Distribution Limits
Public
Copyright
Other