Wither Radar Global Mapping of the Tropical Forest: new avenues from the TREES ERS-1 Central Africa Mosaic.
F. De Grandi (1), J.P. Malingreau (1), M. Leysen (1),
M. Simmard (1, 2), P. Mayaux (1)
1) European Commission Joint Research Center
Space Applications Institute Monitoring Tropical Vegetation Unit TP 440
21020 Ispra (VA) Italy
Phone: +39 332 789823 Fax: +39 332 789073 Email: email@example.com
2) Centre de Recherche en Geomatique, Universite' Laval, Quebec, CANADA
The TREES ERS-1 Central Africa mosaic project CAMP has set the ground
for an entirely new perspective in radar remote sensing for the study
of large scale problems of the earth ecosystem. It was indeed the first
attempt in the context of tropical forest monitoring to bring a
high resolution microwave sensor from the role of gap filler or
spatially limited hot spot analysis to the role of global mapping of an
entire bio-geographical domain.
The project was started in 1995 by the MTV unit (Monitoring Tropical
Vegetation) of the European Commission DG JRC Space Applications
Institute; the core of the activity consists of the assemblage of more
than 400 ERS-1 images covering the whole Central African tropical belt.
So far the potential of this approach was demonstrated unequivocally in
terms of thematic information content, and the capability of mapping in
a short time, on demand and in all weather conditions a continental
scale geographical domain.
The CAMP success has also been the seed for many new initiatives within
the TREES project R/D framework and at the international level. In this
paper we will briefly summarize the main CAMP characteristics,
highlighting some technical aspects related to radar science, and
present some thematic results obtained so far in a number of studies
which hinge around CAMP.
Finally an overview of the evolution of the project and of the new
perspectives opened up by this approach will be given. This will entail
initiatives closely coupled with the existing data set, such as the set
up of a network of investigators to pursue thematic studies coordinated
by the SAI MTV; and derivatives and expansions of the project, such as
the introduction of multi-sensors and change analysis using new global
data acquisitions over Central Africa, and threading of the project to
other international initiatives, such as the NASDA Global Rain Forest
Monitoring GRFM program.
Keywords: ESA European
Space Agency - Agence spatiale europeenne,
observation de la terre, earth observation,
satellite remote sensing,
teledetection, geophysique, altimetrie, radar,
chimique atmospherique, geophysics, altimetry, radar,