Bidirectional reflectance effects derived from ASAS imagery of a pecan orchard

Karl Staenz; Robert P. Gauthier; Phil M. Teillet; Daniel J. Williams

doi:10.1117/12.157067

23 September 1993 Bidirectional reflectance effects derived from ASAS imagery of a pecan orchard

Karl Staenz, Robert P. Gauthier, Phil M. Teillet, Daniel J. Williams

Proceedings Volume 1937, Imaging Spectrometry of the Terrestrial Environment; (1993) https://doi.org/10.1117/12.157067
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Bidirectional reflectance factors (BRF) for a pecan orchard have been studied using Advanced Solid-State Array Spectrometer (ASAS) data acquired in the solar principal plane at altitudes of 2300 m and 5300 m above ground. In particular, the angular dependency of the BRF of different targets such as sunlit and shaded portions of the pecan tree, orchard floor, and soil (road) have been studied for viewing directions between -45 degrees and +45 degrees. The results indicate in general an increasing reflectance from the forward scattering direction to the backscattering direction. In addition, an increase in pixel size has significant effects on the surface BRFs.

Citation Download Citation

Karl Staenz, Robert P. Gauthier, Phil M. Teillet, and Daniel J. Williams "Bidirectional reflectance effects derived from ASAS imagery of a pecan orchard", Proc. SPIE 1937, Imaging Spectrometry of the Terrestrial Environment, (23 September 1993); https://doi.org/10.1117/12.157067

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