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Proceedings Paper

Polarization to estimate leaf surface reflectance
Author(s): Vern Vanderbilt; Craig Daughtry; Robert Dahlgren
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Paper Abstract

The Photochemical Reflectance Index (PRI) provides insight remote sensing into plant physiological processes occurring at leaf to canopy scales. We have found that PRI displays greater sensitivity to these processes if redefined to exclude the leaf surface reflectance. Here we suggest our published method for estimating leaf surface reflectance using linear polarizers underestimates the actual leaf surface reflectance. We suggest part of the leaf volume reflectance obtained using our published method represents light diffusely scattered by the leaf surface. We propose here a modification to our published method in order to obtain estimates of vPRI that are presumably more sensitive to leaf photochemistry.

Paper Details

Date Published: 6 September 2019
PDF: 8 pages
Proc. SPIE 11132, Polarization Science and Remote Sensing IX, 1113205 (6 September 2019); doi: 10.1117/12.2529214
Show Author Affiliations
Vern Vanderbilt, NASA Ames Research Ctr. (United States)
Craig Daughtry, USDA-ARS (United States)
Robert Dahlgren, CSUMB/NASA Ames Research Ctr. (United States)

Published in SPIE Proceedings Vol. 11132:
Polarization Science and Remote Sensing IX
Julia M. Craven; Joseph A. Shaw; Frans Snik, Editor(s)

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