000005227 001__ 5227
000005227 005__ 20210129093157.0
000005227 037__ $$aCTALK-2021-0032
000005227 100__ $$aLidberg, M.
000005227 245__ $$aEUREF - an Important Component of the European Geodetic Infrastructure
000005227 260__ $$c2020
000005227 269__ $$c2020-05-12
000005227 500__ $$aCancelled
000005227 520__ $$aThe International Association of Geodesy (IAG) Reference Frame Sub-Commission for Europe, EUREF, merges efforts of National Mapping and Cadastral Agencies (NMCA), Universities and research institute to define, realize and maintain the European Terrestrial Reference System 1989 (ETRS89) and the European Vertical Reference System (EVRS) for scientific and practical purposes in Europe. These systems are the basis for geo-referencing in Europe and have been endorsed by the European Union INSPIRE directive (Infrastructure for Spatial Information in the European Community), Eurocontrol and EuroGeographics. The realization, maintenance and development of the ETRS89 is primarily done through the EUREF Permanent GNSS Network (EPN). EPN consists of continuously operating GNSS stations (~340 stations), supported by Data and Analysis Centres and a Central Bureau that is   responsible for the monitoring and management of the EPN. All contributions to the EPN are provided on a voluntary “best effort” basis, with more than 100 European agencies/universities involved. The EPN operates under well-defined standards and guidelines which guarantee the long-term quality of the EPN products. In response to an increasing demand both from the National Mapping Agencies and research groups, the backbone EPN has been complemented with additional national CORS networks with rigorously computed station coordinates and velocities. At present, the dense European network incorporates ten times more stations as the core EPN sites and benefits from the contribution of 26 different Institutions. The physical height system EVRS is realized through common adjustment of the Unified European Levelling Network (UELN) where the vast majority of the European countries. 
000005227 594__ $$aNO
000005227 6531_ $$aDeformation measurement
000005227 6531_ $$aGeoinformation/GI
000005227 6531_ $$aGNSS/GPS
000005227 6531_ $$aHydrography
000005227 6531_ $$aPositioning
000005227 6531_ $$aReference frames
000005227 6531_ $$aReference systems
000005227 6531_ $$aStandards
000005227 700__ $$aSoehne, W.
000005227 700__ $$aSacher, M
000005227 700__ $$aLegrand, J.
000005227 700__ $$aKenyeres, A.
000005227 773__ $$tFIG Working week 2020
000005227 8560_ $$fjuliette.legrand@observatoire.be
000005227 85642 $$ahttps://fig.net/resources/proceedings/fig_proceedings/fig2020/papers/ts03g/TS03G_lidberg_soehne_et_al_10687_abs.pdf
000005227 906__ $$aContributed
000005227 980__ $$aCTALKCONT