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Proceedings Paper

Remotely sensing the photochemical reflectance index, PRI
Author(s): Vern Vanderbilt; Craig Daughtry; Robert Dahlgren
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Paper Abstract

In remote sensing, the Photochemical Reflectance Index (PRI) provides insight into physiological processes occurring inside leaves in a plant stand. Developed by1,2, PRI evolved from laboratory reflectance measurements of individual leaves. Yet in a remotely sensed image, a pixel measurement may include light from both reflecting and transmitting leaves.

We compared values of PRI based upon polarized reflectance and transmittance measurements of water and nutrient stressed leaves. Our results show the polarized leaf surface reflection should be removed when calculating PRI and that the leaf physiology information is in leaf interior reflectance, not leaf transmittance.

Paper Details

Date Published: 1 September 2015
PDF: 6 pages
Proc. SPIE 9613, Polarization Science and Remote Sensing VII, 96130Z (1 September 2015); doi: 10.1117/12.2187160
Show Author Affiliations
Vern Vanderbilt, NASA Ames Research Ctr. (United States)
Craig Daughtry, USDA-ARS Hydrology and Remote Sensing Lab. (United States)
Robert Dahlgren, NASA Ames Research Ctr. (United States)

Published in SPIE Proceedings Vol. 9613:
Polarization Science and Remote Sensing VII
Joseph A. Shaw; Daniel A. LeMaster, Editor(s)

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