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The correlation and quantification of airborne spectroradiometer data to turbidity measurements at Lake Powell, UtahA water sampling program was accomplished at Lake Powell, Utah, during June 1975 for correlation to multispectral data obtained with a 500-channel airborne spectroradiometer. Field measurements were taken of percentage of light transmittance, surface temperature, pH and Secchi disk depth. Percentage of light transmittance was also measured in the laboratory for the water samples. Analyses of electron micrographs and suspended sediment concentration data for four water samples located at Hite Bridge, Mile 168, Mile 150 and Bullfrog Bay indicated differences in the composition and concentration of the particulate matter. Airborne spectroradiometer multispectral data were analyzed for the four sampling locations. The results showed that: (1) as the percentage of light transmittance of the water samples decreased, the reflected radiance increased; and (2) as the suspended sediment concentration (mg/l) increased, the reflected radiance increased in the 1-80 mg/l range. In conclusion, valuable qualitative information was obtained on surface turbidity for the Lake Powell water spectra. Also, the reflected radiance measured at a wavelength of 0.58 micron was directly correlated to the suspended sediment concentration.
Document ID
19800038297
Document Type
Conference Proceedings
Authors
Merry, C. J. (U.S. Army, Cold Regions Research and Engineering Laboratory, Hanover N.H., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1979
Subject Category
EARTH RESOURCES AND REMOTE SENSING
Meeting Information
International Symposium on Remote Sensing of Environment(Ann Arbor, MI)
Funding Number(s)
CONTRACT_GRANT: NSG-5014
Distribution Limits
Public
Copyright
Other