AVIRIS measurements of spectral reflectance characteristics of whitecaps

Robert J. Frouin; Pierre-Yves Deschamps

doi:10.1117/12.411683

5 January 2001 AVIRIS measurements of spectral reflectance characteristics of whitecaps

Robert J. Frouin, Pierre-Yves Deschamps

Proceedings Volume 4154, Hyperspectral Remote Sensing of the Ocean; (2001) https://doi.org/10.1117/12.411683
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

The spectral reflectance of oceanic whitecaps in the visible and near infrared was investigated using high-altitude, 20 m resolution AVIRIS measurements off the Southern California coast. The whitecap effect on surface reflectance was expressed as a function of the difference between the reflectance of pixels contaminated by whitecaps and of adjacent pixels free of whitecaps. Whitecap reflectance was found to decrease substantially in the near infrared, by about 40% at 850 nm and 80% at 1,600 nm, in agreement with previous measurements in the coastal zone and the open ocean. The spectral dependence of whitecap reflectance appears to be fairly independent of environmental conditions, making it easy to take into account the resulting -- and significant -- effects in ocean color and aerosol remote sensing algorithms.

Citation Download Citation

Robert J. Frouin and Pierre-Yves Deschamps "AVIRIS measurements of spectral reflectance characteristics of whitecaps", Proc. SPIE 4154, Hyperspectral Remote Sensing of the Ocean, (5 January 2001); https://doi.org/10.1117/12.411683

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