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Gobron, N., Pinty, B., Melin, F., Taberner, M., Verstraete, M., Widlowski, J. (2003). Intercomparison of Land Surface Remote Sensing Products From Various Sensors. Eos Trans. AGU, 84(46), Fall Meet. Suppl. 2003, Abstract # B22C-05

The biophysical activities on land surfaces are documented from spectral measurements made in space. Advances in the understanding of radiation transfer and availability of higher performance instruments have lead to the development of a new generation of geophysical products able to provide reliable, accurate information on the state and evolution of terrestrial environments. Specifically, a series of optimized algorithms have been developed to estimate the Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) for various instruments. Such an approach allows the synergistic use of FAPAR products derived from different sensors and the construction of global FAPAR time series independent from the life time of these specific sensors. The outline of the methodology will be summarized and the preliminary results of an inter-comparison exercise conducted with SeaWiFS, MERIS(ENVISAT), MISR(Terra) and MODIS(Terra) products will be presented.

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Updated: 14-Jan-2005