Abstract
ABSTRACT In support of the Bureau of Reclamation effort to manage eutrophication trends in Flaming Gorge Reservoir, Utah and Wyoming, remote sensing studies employing multispectral digital imagery were undertaken. Specifically, the imagery was used to extrapolate point measurements of chlorophyll concentration and light penetration to characterize conditions throughout the reservoir. In 1981 and 1982, aircraft and satellites acquired digital imagery of the reservoir concurrent with surface sampling. Sampling stations were identified within the imagery and the digital values at these points recorded. The surface measurements of chlorophyll and light penetration were regressed against the digital image values to obtain predictor equations for these indicators of primary productivity. The equations were then applied to the images of the whole reservoir to obtain maps of the distribution of chlorophyll and light penetration. A unique set of equations was defined for each data-gathering date. The favorable res...
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