After many years of informal collaboration 13 institutes from 13 Central European countries decidedto formalize their organization for long term maintenance of CEGRN.The CEGRN Consortium was established on 5th of September 2001 in Budapest by signing a Memorandum of Agreement. The participants recognized the importance of international collaboration in the field of Space Geodesy, Geodynamics and Earth Sciences. There is a need for a coherent, high accuracy and high quality reference network in Central Europe for geodynamic investigations. The maintenance of the network includes coordinated programme of measurements, technical developments and international access to monitoring results for a long period of time. The Consortium fosters coordinated maintenance and upgrade of existing CEGRN sites, establishment of new ones, coordinated monitoring measurements, the operation and development of CEGRN Data Centre and Processing Centres.
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In the frame of the CERGOP Project in Romania in 1999 an array of nine stations (eight epoch stations and one permanent station) included in the CEGRN network were observed. In the framework of the long-time cooperation between BKG Frankfurt a. M. and the Technical University of Civil Engineering Bucharest, the observations and data processing were performed. This paper includes data processing of the Romanian part of CEGRN with connections to the neighboring countries with a total of 12 stations. For the data processing we used Bernese Software V. 4.2. and followed the CERGOP processing strategies. The results obtained at the BKG Processing Center indicate a daily repeatability of+/-4mm or better satisfying geodynamic standards. Special attention was paid to the numerous eccentricities, which had to be used over the years for the Romanian stations. The information on the local offsets at each site included in this paper is essential for the contribution to the geodynamic research in the Romanian part of the CEGRN network by the determination of a velocity field over all campaigns.
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