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Monitoring water quality from LANDSATWater quality monitoring possibilities from LANDSAT were demonstrated both for direct readings of reflectances from the water and indirect monitoring of changes in use of land surrounding Swift Creek Reservoir in a joint project with the Virginia State Water Control Board and NASA. Film products were shown to have insufficient resolution and all work was done by digitally processing computer compatible tapes. Land cover maps of the 18,000 hectare Swift Creek Reservoir watershed, prepared for two dates in 1974, are shown. A significant decrease in the pine cover was observed in a 740 hectare construction site within the watershed. A measure of the accuracy of classification was obtained by comparing the LANDSAT results with visual classification at five sites on a U-2 photograph. Such changes in land cover can alert personnel to watch for potential changes in water quality.
Document ID
19760004455
Acquisition Source
Legacy CDMS
Document Type
Preprint (Draft being sent to journal)
Authors
Barker, J. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 3, 2013
Publication Date
July 1, 1975
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
X-923-75-190
NASA-TM-X-71006
Accession Number
76N11543
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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