18-Aug-2016: We are testing a new look for Eionet at the Data Dictionary website. The new design takes into account that bigger screens have become the norm. 

10-Apr-2013: The phone number for the Eionet Helpdesk has been retired. The email address is still the same. 

The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity.

Latest released definitions

Dataset definition WISE SoE - Biology in Transitional and Coastal Waters (WISE-2) Fri Sep 22 08:14:54 UTC 2017
Dataset definition WISE SoE - Emissions (WISE-1) Fri Sep 22 08:14:22 UTC 2017
Dataset definition WISE SoE - Water Quality in Transitional, Coastal and Marine waters (WISE-6) Fri Sep 22 08:13:10 UTC 2017
Vocabulary Indicators on crime and criminal justice 2017-09-18 16:03:54.0
Vocabulary IUCN category 2017-09-14 13:19:15.0
Vocabulary Country of citizenship 2017-09-12 16:35:08.0
Vocabulary Country/region of birth 2017-09-12 16:35:08.0
XML schema CO2 emissions from passenger cars 2017-08-23 12:08:41.0
XML schema CO2 emissions from light commercial vehicles (vans) 2017-08-23 12:04:38.0
Dataset definition Urban Waste Water Treatment Directive reporting under Article 15 - review Thu Aug 17 12:45:02 UTC 2017
XML schema Implementing Decision 2011/850/EU: AQ info exchange & reporting VERSION 1.0 2017-07-21 15:06:26.0
XML schema Water Framework Directive 2016 2017-05-22 17:49:31.0



If you experience any problem using data dictionary, please let the Eionet Helpdesk know immediately. The Helpdesk can be reached from Monday through Friday 9:00 to 17:00 CET by email to:

Do not hesitate, we are here to help!