Title: Tropical Forest Mapping at Regional Scale using the GRFM SAR Mosaics over Amazon in South America
Publisher: JRC
Publication Year: 2006
JRC N°: JRC34345
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC34345
Type: PhD Theses
Abstract: Main focus of the work described in this thesis is on the estimation of tropical vegetation cover using as data source continental scale Synthetic Aperture Radar (SAR) mosaics at 100 m spatial resolution. These radar mosaics were acquired over the South America tropical belt in a spatially and temporally contiguous way by the National Agency for Space Development of Japan (NASDA) JERS-1 instrument in the context of the Global Rain Forest Mapping (GRFM) project. Raw data were processed by the NASA Alaska SAR Facility (ASF). Mosaics were assembled by the California Institute of Technology Jet Propulsion Laboratory (JPL). The techniques historically adopted for forest monitoring are introduced in Chapter 1, emphasizing how earth observations by satellite provide a unique technology to acquire quantitative information on forest ecosystems at regional scale. Several remote sensing initiatives were launched in the early 1990 s for forest monitoring at regional/global scale. Positive and negative aspects of these approaches are discussed. From this analysis the rationale for a more intensive usage of SAR remote sensing emerges together with the technical problems that historically hindered SAR usage for global scale problems. The GRFM project can be considered the first international endeavor that has overcome these technical constraints.
JRC Directorate:Sustainable Resources

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