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Proceedings Paper

Characterization of land surface structure using multidirectional MISR/Terra observations
Author(s): Jean-Luc Widlowski; Bernard Pinty; Nadine Gobron; Michel M. Verstraete; Dave J Diner; Anthony B Davis
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Paper Abstract

The availability of quasi-simultaneous multi-directional measurements from space, as provided by the Multiangle Imaging SpectroRadiometer (MISR) on board the Terra platform, offers new and unique opportunities to document the anisotropy of terrestrial surfaces at key solar wavelengths. This contribution outlines the physical reasoning underpinning a new quantitative interpretation of multi-angular reflectance measurements over terrestrial surfaces. The most innovative aspect of this approach concerns the characterization of the heterogeneity of these surfaces. Indeed, when appropriately parameterized, the shape of the reflectance anisotropy at specific optical wavelengths can be related to the structural characteristics of the observed target. This allows the detection of geophysical conditions for which surface heterogeneity is an essential ingredient to describe the measured reflectance pattern. This finding paves the way for the quantitative characterization of plant canopy structure on the basis of multi-angular data.

Paper Details

Date Published: 24 February 2004
PDF: 9 pages
Proc. SPIE 5232, Remote Sensing for Agriculture, Ecosystems, and Hydrology V, (24 February 2004); doi: 10.1117/12.510717
Show Author Affiliations
Jean-Luc Widlowski, Joint Research Ctr. (Italy)
Bernard Pinty, Joint Research Ctr. (Italy)
Nadine Gobron, Joint Research Ctr. (Italy)
Michel M. Verstraete, Joint Research Ctr. (Italy)
Dave J Diner, Jet Propulsion Lab. (United States)
Anthony B Davis, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 5232:
Remote Sensing for Agriculture, Ecosystems, and Hydrology V
Manfred Owe; Guido D'Urso; Jose F. Moreno; Alfonso Calera, Editor(s)

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