EEA Catchments and Rivers Network System – ECRINS v1.1
The European Catchments and Rivers Network System (ECRINS) is the hydrographical system currently in use at the European Environment Agency (EEA) as well as widely serving as the reference system for the Water Information System for Europe (WISE).
The first version of ECRINS (version 0 or â) was released in December 2008, and was completed throughout 2009. This version has been used to carry out assessments and simulations for the EEA. It is based on Catchment Characterisation and Modelling (CCM), with resolution equivalent to that of a 1:250K map. This followed former attempts to develop the European Rivers and Catchments (ERICA) database (European Environment Agency, Collins Bartholomew, 1998) in 1998, that was restricted in its use. The later development of the ERC (Bredhal and Sousa, 2006), based on a combination of CCM and the EuroGlobal map, produced maps, but no calculable system.
During the late autumn of 2009, it was agreed that ECRINS would be the most suited host for integrating the Member States' reporting on 'main rivers and main lakes' under Art. 13 of the Water Framework Directive (WFD) (Directive 2000/60/EC). This decision made it necessary to improve the current version by inserting river names, a key driver for accurately defining the 'main drains' that are the candidate main rivers.
The version was upgraded by populating ECRINS â with river names, removing errors resulting from CCM data sets and bugs in the application developed to make it, and updating other components required to build ECRINS from CCM. Altogether, changes took longer than expected, and development of the new version was also delayed due to other important tasks, for example building the water accounts and producing results with ECRINS â.
The new version, named ECRINS v1.x, whose rationales, data model and contents are described in this report, is very similar to the former one. First and foremost, the data models are almost identical, making all applications tested with ECRINS â fully utilisable with the new one.
The life expectancy of ECRINS v1.x is in the range of three to five years. At the end of 2012, the Global Monitoring for Environment and Security (GMES) Reference Data Access Service for Europe should have provided an updated data elevation model (DEM) and rivers/catchment system that can be used to build ECRINS v2. The GMES reference data service is designed to have a resolution equivalent to that of a 1:100K map. However, considering the resources required to build an ECRINS layer, it is possible that the construction of v2.x will be carried out stepwise.