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Application of remote sensing in the determination of water quality in Nebraska reservoirsIn June, July, and August, 1975, ground truth was collected from Lake McConaughy, a 35,000 acre reservoir in western Nebraska, coincident with the overflights of LANDSAT. Water samples were collected on six different dates and analyzed for turbidity, suspended solids, and chlorophyll, parameters which had correlated well with CCT reflectances. The correlations and regressions reported were derived from data obtained on only three of the six sampling dates. The radiance values from each of the four spectral bands were printed out in the form of a map of Lake McConaughy. Reflectances in the various bands were then obtained from the map at the appropriate sampling sites. The dependent variables chlorophyll, suspended solids, and turbidity were compared to the independent variables - reflectances in the four bands - by regression analysis. Both multiple and univariate regressions were examined. It is concluded that CCT's from LANDSAT can be used to detect and quantify the water quality parameters suspended solids, turbidity, and chlorophyll.
Document ID
19760023545
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hergenrader, G. L. (Nebraska Univ. Lincoln, NE, United States)
Date Acquired
September 3, 2013
Publication Date
July 22, 1976
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
NASA-CR-148776
Accession Number
76N30633
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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