1. Core elements of GIS Guidance and practical steps toward harmonisation By Albrecht Wirthmann, GISCO, Eurostat e-mail: Albrecht.Wirthmann@cec.eu.int 2 nd workshop on common GIS reporting for water information system in Europe

2. Core elements of GIS guidance Geographic datasets Geographic datasets -Reporting sheets 2004/05/08 Data model -Adaptation according to latest specifications -Integration of topological rules -Guidelines for data production Coordinate Reference System Resolution and accuracy -Basic rules (0.5 km², 10 km², tolerances) 2 nd workshop on common GIS reporting for water information system in Europe

3. Core elements of GIS guidance Geographic datasets Data validation / data quality Metadata -Adoption of ISO 19115 profile -Support for migration from CEN to ISO -Dublin Core for discovery data -Development of profile within INSPIRE prototype Data exchange -GML, SHAPE files, tabular files -Access to data in a spatial data infrastructure Feature Coding Harmonisation 2 nd workshop on common GIS reporting for water information system in Europe

4. Core elements of GIS guidance Feature Coding Unique European codes -country code + max 22 digits -Crossborder geographical features Structured hydrological identifiers -Modified Pfaffstetter coding Suggestions -Creation of thematic working group for elaboration of structure coding system -Coding authorities -Complete coding 2 nd workshop on common GIS reporting for water information system in Europe

5. Core elements of GIS guidance Harmonisation Definition of 3 products -European seamless data -Central European database -European federation of spatial data servers Phased approach -Central database -Development of infrastructure through INSPIRE 2 nd workshop on common GIS reporting for water information system in Europe

6. Core elements of GIS guidance Harmonisation Seamless data -Topological consistency -Responsibility of member states -Use of common political boundaries as key element Agreement on common geometry at the beginning of the implementation phase -Common data quality -harmonisation of river basins and water network -use harmonised data at national level -defined process in case of changes -check usage of agreed boundaries 2 nd workshop on common GIS reporting for water information system in Europe

7. Core elements of GIS guidance Harmonised European db Vertical Integration -Common coordinate reference system -Definition of geometric relationships -Geometric harmonisation of different layers -Connection of layers along borders -Adopt / Support European data model -Verification of topological consistency -Usage of seamless and harmonised reference data Start with relevant layers INSPIRE to consider background layers 2 nd workshop on common GIS reporting for water information system in Europe

8. Core elements of GIS guidance Phased approach Centralised system -Design and implementation of GIS -Upgrade of system -Data loading -System maintenance -Data dissemination Office for data management 2 nd workshop on common GIS reporting for water information system in Europe

9. Core elements of GIS guidance Centralised system Installation of thematic working group -follow-up of INSPIRE developments -Contribute to development of metadata profile -Liaison with Reporting directive -Details for harmonisation process -Standards for data exchange / access -Guidelines for product specifications -Link to Pilot River basins -Hydological coding system -Investigate problems related to analysis of underlying data / pressures and impacts 2 nd workshop on common GIS reporting for water information system in Europe

10. Core elements of GIS guidance Phased approach De-centralised system -Direct access to data -Strong coordination -Compliance checking -Data availability -Security and Confidentiality issues Preferred long-term options Connect to INSPIRE process 2 nd workshop on common GIS reporting for water information system in Europe