NDLI: Joint retrieval of vegetation structure and photosynthetic activity from MISR

Content Provider	IEEE Xplore Digital Library
Author	Gobron, N. Pinty, B. Widlowski, J.-L. Verstraete, M.M. Diner, D.J.
Copyright Year	2001
Description	Author affiliation: EC-Joint Res. Center Space Applications Inst., Ispra, Italy (Gobron, N.)
Abstract	This paper describes the implementation of a physical and mathematical approach to design a simple 2-dimensional algorithm dedicated to the interpretation of data collected by MISR. One dimension of information fully exploits the spectral information in the blue, red and near-infrared bands while the other dimension capitalizes on the multiangular capability of MISR to assess the anisotropic behaviour of terrestrial surfaces with respect to solar radiation. This approach delivers an estimate of the fraction of absorbed photosynthetically active radiation (FAPAR) that relates to the vegetation photosynthetic activity. The anisotropy shape is strongly related to the architecture of the vegetation and, under some favourable conditions, it permits revealing some type of surface heterogeneity. The proposed vegetation activity and structure (VEGAS) algorithm for MISR therefore delivers two axes of information representing the FAPAR and the vegetation structure at the MISR subpixel full spatial resolution.
Starting Page	1127
Ending Page	1129
File Size	96103
Page Count	3
File Format	PDF
ISBN	0780370317
DOI	10.1109/IGARSS.2001.976767
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-09
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vegetation Anisotropic magnetoresistance Spatial resolution Geophysical measurements Algorithm design and analysis Space technology Geometry Propulsion Laboratories Solar radiation
Content Type	Text
Resource Type	Article

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