HR: 15:15h
AN: B33D-06    [Abstracts]
TI: Assessement of Land Biophysical Activity Over Multiple Years From a Sensor Independent Product
AU: * Nadine, G
EM: nadine.gobron@jrc.it
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AU: Bernard, P
EM: bernard.pinty@jrc.it
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AU: Frederic, M
EM: frederic.melin@jrc.it
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AU: Malcolm, T
EM: malcolm.taberner@jrc.it
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AU: Michel, V M
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AU: Alan, B
EM: alan.belward@jrc.it
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AU: Thomas, L
EM: thomas.lavergne@jrc.it
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AU: Jean-Luc, W
EM: jean-luc.widlowski@jrc.it
AF: EC-JRC, via E. Fermi, 1, Ispra, VA 21020 Italy
AB: In the context of scientific research concerning global change issues, remote sensing products have been demonstrated to be essential tools to monitor the characteristics of both land surfaces and their temporal evolution. 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. This paper will present inter-comparison procedure and results from the exercise conducted with SeaWiFS and MERIS (ENVISAT) global product. A study of European land surfaces response against 2003 drought will be illustrated.
DE: 9335 Europe
DE: 1694 Instruments and techniques
DE: 1640 Remote sensing
DE: 0933 Remote sensing
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting