Resolutions of EUREF Symposia A. Resolution No. 3 of the EUREF Symposium in Warsaw 8 - 11 June 1994 The IAG Subcommission for the European Reference Frame recognizing the close relationship of vertical datum problems to EUREF activities and considering the proposal…
Definition of European Vertical Reference System Introduction Definition Reference ellipsoid and normal gravity field Introduction During the last ten years significant progress has been achieved in the definition and realization of the European Vertical Reference…
EUVN-DA Introduction EUVN-DA EUVN as starting point Project Target Related EUREF Resolutions EUVN-DA In 2003 the EUREF Technical Working Group (TWG) has launched the EUVN Densification Action to establish a continental homogeneous GPS / levelling database…
Product description A common Excel worksheet has been elaborated and distributed for the NMAs as the general data exchange and evaluation format. The final EUVN-DA worksheets include the checked and analysed GPS and levelling data provided by the countries.…
Data submission EUVN-DA data requirements EUVN-DA data sheet Database overview EUVN-DA data requirements Site selection mean site separation: 50 - 100 km a UELN benchmark should be located within 10 km select levelling benchmark when feasible GPS data cutoff: < 15…
Data analysis Levelling data GPS coordinates GPS / levelling height anomalies Statistics of the geoid comparisions Levelling data The submitted levelling data (geopotential differences or normal / orthometric heights) are checked and evaluated at the EUVN / UELN…
Supporting institutions The following organisations supported the EUVN-DA project. Country Organisation Austria BEV - Bundesamt für Eich- und Vermessungswesen (Federal Office of Metrology and Surveying) Belgium NGI - Nationaal Geografisch Instituut (National…
EUVN-DA - EUVN Densification Action The project EUVN-DA (European Vertical Reference Network - Densification Action) project has been organized to establish a dense continental homogeneous GPS / levelling database. The main target is to support the European geoid…
EUVN - European Vertical Reference Network The initial practical objective of the EUVN project is to unify different European height datums within few centimeters. In addition this project is to prepare a geokinematic height reference system for Europe and to connect…
EVRF2019 Data Realization of the Datum Epoch of the measurements Tidal corrections Adjustment results EVRF2019 heights Data Since the first EVRS realization in 1998, most of the national leveling data have been replaced at least once. New included national leveling…
