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5 Reports on Geodesy

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Creating a common CEGRN solution

100%

Stangl G.

Reports on Geodesy

2002

tom z. 1/61

23-25

Data evaluation of the CEGRN-99 GPS campaign at the BKG Processing Centre

75%

Rus T. , Becker M.

Reports on Geodesy

2001

tom z. 2/57

129-144

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.

Central European intraplate velocities from CEGRN campaigns

75%

Becker M. , Cristea E. , Figurski M. , Gerhatova L. , Grenerczy G. , Hefty J. , Kenyeres A. , Liwosz T. , Stangl G.

Reports on Geodesy

2002

tom z. 1/61

83-91

Towards a dense intraplate velocity map for Central Europe

75%

Generczy G.

Reports on Geodesy

2002

tom z. 1/61

27-36

A regional and several smaller scale geodynamic networks spanning the region between the Adriatic and the Baltic Sea have been measured since the early 1990s using the Global Positioning System (GPS). The smaller scale networks are operated more or less independently, and they focus on a certain country or a particular tectonic domain of the region.Some of these smaller scale programs have already revealed itraplate crustal movements and produced GPS intra[plate crustal velocity solutions. The regional network has been operated in cooperation of 14 countries of the region since 1994. To date, two research groups provided GPS intraplate velocity solutions from their independent data processing and analysis and there is also a combined solution from the coordinate products of the processing centers. This paper reports on the preliminary results of a combination and joint tectonic interpretation of all available and published GPS intraplate velocity solutions in the region. The data sets have diffrent quality and refernce frame, however after unification they provide independent confirmation of the results at the common sites and leads to a dense intraplate present crustal velocity map of the region.

Consortium for Central European GPS Geodynamic Reference Network (CEGRN): concept, objectives and organization

75%

Fejes I.

Reports on Geodesy

2002

tom z. 1/61

15-21

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.