The Geographical Information @ Geographical Information Systems (GI&GIS) project of the Joint Research Centre is actively involved in assisting in the creation of the European Spatial Data Infrastructure (ESDI), as well as in activities related to the conception, creation and harmonization of pan-European spatial databases relevant for the policies of the European Union (EU), mainly through the support and co-ordination of networks in various thematic fields. Remotely sensed datasets play an important role in the ESDI and it is argued that the creation of an ESDI will greatly impact the GI and the remote sensing communities alike. Hence the main objective of this paper is to make the remote sensing community familiar with the current developments at EU level. This paper also illustrates major issues related to the harmonization of existing national datasets or the creation of new ones having a European or pan-European extent. In particular, the following technical aspects are discussed: terrestrial reference systems, projection systems, core data definition and geospatial metadata.
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Annoni et al. (2003) studied this question.