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|Title:||Mapping and Monitoring of Forest Cover at Regional and Global Scales|
|Authors:||STIBIG HANS-JURGEN; ACHARD FREDERIC; EVA HUGH; MAYAUX PHILIPPE|
|Citation:||Climate Change - Forest Ecosystems & Landscape Proceedings p. 114-119|
|Publisher:||National Forest Centre-Forest Research Institute Zvolen (Slovak Republic)|
|Type:||Articles in periodicals and books|
|Abstract:||The JRC TREES and GLC2000 projects are major contributions to regional and global forest cover mapping from satellite imagery of coarse spatial resolution (1km2). The TREES regional tropical forest cover maps of the mid 1990s were based on 1km NOAA AVHRR satellite imagery, whilst towards the end of the 1990s intensive use was made of ERS2-ATSR and SPOT VEGETATION images. The global and regional land cover maps generated in the context of the GLC-2000 (Global Land Cover) project provided uniform overview on global forest cover for the year 2000 at improved spatial and thematic quality. Regional and global estimates of forest cover were derived from these data sets and trends of major forest change were documented. For a reliable estimate of deforestation rates in the tropics (TREES II ), however, statistical sampling was performed, interpreting forest cover change from pairs of Landsat TM and SPOT satellite images at 30m and 20m resolution, respectively. The results of this study confirmed a continuing high rate of deforestation in tropics, particularly in selected regions of South America and Southeast Asia. Future regional forest cover mapping aims at improving the spatial detail of forest cover information in the tropical and in the boreal zones by using satellite imagery of medium spatial resolution, obtainable from the MODIS or MERIS sensors (250m-300m). For an up-dated assessment of forest cover change at regional or global level the further development of sampling approaches based on high resolution satellite data is considered the most efficient alternative.|
|JRC Directorate:||Sustainable Resources|
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