European catchments and Rivers network system (Ecrins), ancillary data sets - version 1, Jun. 2012

This dataset contains different ancillary datasets of Ecrins v1.0. The most relevant feature class is the C_dams that documents the dams that have a position accurately recorded. Hence this layer is likely to be updated if new coordinates are obtained (coordinates and dams update is a continuous work by the EEA). Dams are related to river segments and to lakes. It may happen that a dam is not related for several reasons: dams coordinates are inaccurate; position of lake / segment is inaccurate and too far and I some cases the lake does not exist (e.g. less than 25 ha, not yet filled or the dams makes no lake) or the segment does not exist for example is the lake has no river to empty it. The second ancillary data set id the features class of FECs centroids, it has been placed here to avoid inflating the EcrFEC database and make it at a safe distance of the 2GB impassable threshold of MS Access® . The two last ancillary dataset are flat table making it possible to retrieve source CCM catchments that contributed to FECS, table FECvsW1, with reference to the smallest entity aggregated as FEC. second table is TR_TR0 giving equivalence of the segment ID in version 0 to the current version. Both tables are only for those experts working in parallel with CCM. Full documentation is in EEA technical report 9/2012, downloadable from the EEA website.