期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B4
页码：783-789
出版社：Copernicus Publications
摘要：The European GMES (Global Monitoring of the Environment and Security) initiative provides a political framework for future implementations of Service Centers in charge of the provision of products and services related to environmental applications. The GEOLAND project targets the land cover and vegetation thematic area of GMES. The goal of GEOLAND is to demonstrate pre- operational capabilities by establishing strong and efficient producer / user relationships, with the objective of implementing GMES operational services in 2008 and beyond. One of the main goals of GEOLAND is to address global land surface monitoring issues to support related international and European policies. This activity has been structured in GEOLAND in one Core Service, the Bio- geophysical Parameter Core Service, and three Observatories related to carbon flux, crop production and land cover change estimates. The function of the Core Service is to provide value-added remote sensing products needed as input in the Observatories ; the latter provide end users (including policy makers) with appropriate thematic products. After a series of introductory statements on GMES and GEOLAND, the present paper focusses on the description of the Bio-geophysical Parameter Core Service. The team produces a number of bio-geophysical products at continental and global scales : leaf area index, vegetation fraction cover, downwelling radiation at surface level, surface temperature and humidity, burned areas, maps of water bodies, evapotranspiration, and precipitation. Multi-year, multi-sensor products will be produced in the project lifetime, from a variety of spaceborne instruments including VEGETATION, MERIS, POLDER, SEVIRI, METEOSAT, AVHRR, (A)ATSR, ERS / Scatt, and AMSR. The paper describes the team organisation, the generated products and associated methodological principles and sensors
