9-Nov-2017: Data Dictionary will from now on generate different XML schemas for datasets and tables. The previous style is still available but is hidden. To generate an old schema for a dataset use GetSchema?id=DST and the dataset number. E.g. WISE-1. To generate an old schema for a table replace the id argument with TBL and the table number. E.g. DWD_AM.

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. 

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

Vocabulary Household composition 15 September 2021
Dataset definition WISE SoE - Water Quality in Inland, Coastal and Marine waters (WISE-6) 13 September 2021
Dataset definition Urban Waste Water Treatment Directive reporting under Article 15 - review 31 August 2021
Vocabulary Legislation Level 31 August 2021
Dataset definition WISE SoE - Emissions (WISE-1) 17 August 2021
Vocabulary Observed property 16 August 2021
Vocabulary AQD - Aggregation Process 13 August 2021
XML schema Implementing Decision 2011/850/EU: AQ info exchange & reporting VERSION 1.0 23 July 2021
XML schema CO2 emissions from heavy duty vehicles (HDVs) 16 June 2021
XML schema EU Registry on Industrial Sites 06 May 2021
XML schema FGases Reporting 2019 09 March 2021
XML schema CO2 emissions from passenger cars 17 February 2021
XML schema CO2 emissions from light commercial vehicles (vans) 17 February 2021
XML schema MSFD schemas 09 March 2020
XML schema Flood Directive Schemas 09 March 2020
XML schema Information on Natura 2000 sites 03 March 2020
Dataset definition Nationally Designated Areas (CDDA) 21 February 2020
XML schema LCPandPRTR 15 November 2019
XML schema Water Framework Directive 2016 04 November 2019
XML schema necd-pams 23 May 2019
XML schema CoE Resolution No. 8 (2012) 08 April 2019
XML schema MMR Policies and Measures 12 March 2019
XML schema MMR Projections 12 March 2019
XML schema Reporting on Combustion Plants under Art 72 of the Industrial Emissions Directive 18 February 2019
XML schema Schemas for WFD EQS 2018 Reporting 11 December 2018
XML schema Noise Action Plans DF_7_10 03 July 2018
XML schema dir200856ec 09 May 2018
XML schema dir200760ec 09 May 2018



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!