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USGS · 70112916

Airborne-biogeochemical survey test-case results

William E. Collins·Sheng-Huei Chang·Gary L. Raines·Frank C. Canney·Roger Ashley
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Abstract

Airborne spectroradiometer surveys over several forest-covered sulfide bodies indicate that mineralization has affected the overlying vegetation; anomalous spectral reflectivity properties can be detected in the vegetation using appropriate remote-sensing interments and data-reduction techniques. Mineralization induces subtle changes in the shape of the chlorophyll a and b absorption spectrum between 550 and 750 nm. The observed spectral variations appear specifically to be on the wings of the broad red chlorophyll bars, centered at about 680 nm.

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William E. Collins, Sheng-Huei Chang, Gary L. Raines, Frank C. Canney, Roger Ashley. 1980. Airborne-biogeochemical survey test-case results. https://pubs.usgs.gov/publication/70112916

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