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Proceedings Paper

Forest understory characterization at regional levels with satellite data: a conceptual approach
Author(s): Mario R. Caetano; Alfredo R. Huete; Jose M. Cardoso Pereira; Wenge Ni
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Paper Abstract

In this study we propose a methodology for understory characterization based on the isolation of the forest reflectance that is exclusively due to the background. This is achieved by extracting the contribution of the forest canopy from the overall forest reflectance using forward modeling based on forest reflectance models and existing data on forest structure. Then, the understory can be characterized by applying any methodology developed for open-sky shrub lands, such as vegetation indices or linear mixture models. The developed methodology was successfully applied to simulated data of maritime pine forests with different biophysical stand characteristics and with different understory characteristics.

Paper Details

Date Published: 11 December 1998
PDF: 12 pages
Proc. SPIE 3499, Remote Sensing for Agriculture, Ecosystems, and Hydrology, (11 December 1998); doi: 10.1117/12.332757
Show Author Affiliations
Mario R. Caetano, Ctr. Nacional de Informacao Geografica (Portugal)
Alfredo R. Huete, Univ. of Arizona (United States)
Jose M. Cardoso Pereira, Instituto Superior de Agronomia (Portugal)
Wenge Ni, Hughes STX (United States)


Published in SPIE Proceedings Vol. 3499:
Remote Sensing for Agriculture, Ecosystems, and Hydrology
Edwin T. Engman, Editor(s)

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