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1

Preliminary Central European intraplate velocities from CEGRN campaigns 1994 to 2005

Drescher R., Becker M., Schoenemann E.

Reports on Geodesy

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2006

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z. 1/76

47-54

EN

Within the Central Europe Regional Geodynamics Project (CERGOP) for the establishment of a high precision reference frame CEGRN (Central European GPS Geodynamic Reference Network) eight GPS campaign solutions since 1994 are available for velocity estimation. They were used to compute preliminary station velocities in the ITRF2000. This paper reports not only on the results and some comparisons with former solutions published by the CERGOP group but also on the improved options available for velocity estimation with version 5.0 of Bernese GPS Software.

2

CERGOP-2/Environment. Summary of the third year

Pesec P., Fejes I.

Reports on Geodesy

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2006

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z. 1/76

9-19

EN

The project "CERGOP-2, a multipurpose and interdisciplinary sensor array for environmental research in Central Europe" was approved by EU within the 5th Framework Program and started April 1st, 2003. The official and of the project is March 31, 2006. However we applied for a prolongation of another 6 months and we are waiting for a relevant decision of EU. In 17 work packages we extented a high quality GPS network in a region covering about 15 % of Europe. It will be operational for the next decade. Velocity field and strain maps for geodynamical investigations and hazard mitigation, data for climate research and weather forecast, data for real time navigation and a seamless data bank for scientific and public access were established. This report gives a final summary of the project was arranged in Sarajevo, Bosnia Herzegovina ( in November 2005), which included a Governing Board Meeting of the CEGRN Consortium (CCGB). Discussions included site quality issues related to site acceptance for CEGRN - the basic reference network, and an open forum on future potential project initiatives. The ADRIA, the GMES (Global Monitoring for Environment and Security), the GEO (Group on Earth Observation), the GALILEO, WEGENER and TOPO EUROPE topical project areas were identified, where the Consortium could participate/contribute significantly. Candidate coordinators were assigned for each area. We have also to think about the continuation of this project - after its termination end of March 2006 or end of September 2006. Driven by the many natural disaster during the last 2 years people expect that science will strengthen its efforts to find solutions for explaining the influence of the forces leading to crust displacement and to determine the location, magnitude and the "date" of future expected sudden displacements, a task, which may take another century of scientific investigations, if even possible.

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CERGOP2 database after the project. Eu Project Cergop2/Environment Work Package 1

Haslinger C., Stangl G.

Reports on Geodesy

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2006

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z. 1/76

21-22

4

Analysis of CEGRN 2005 as the eighth of CERGOP observing campaigns

Hefty J., Gerhatova L., Stangl G., Haslinger C., Krauss S., Becker M., Drescher R., Grenerczy G., Kratochvil R., Liwosz T.

Reports on Geodesy

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2006

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z. 1/76

39-46

EN

Strategy of analysis and results from solution of CEGRN epoch campaign in 2005 Combined solution of CEGRN 2005 based or individual solutions from six an: centres and its comparison with CEGRN 2003 coordinates. Time evolution of coordinates at some long-term observed CEGRN sites obtained during epoch camp since 1994 and the related problems.

5

A software module for quqlity control of CEGRN sites

Schoenemann E., Becker M., Gutwald J.

Reports on Geodesy

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2006

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z. 1/76

103-109

EN

GPS observations are still intluenced by a whole amount of effects, as for example multiple reflections, ionosphere etc. which have an impact on the accuracy of the observables even on carefully selected sites. Up to now these effects can not be mitigated or modelled satisfactorily. Hence the monitoring of these station specific effects is mandatory in order to judge about data quality and derive weighting or deletion schemes for optimal parameter estimation. Within the tasks of the work package 4 of the Central Europe Geodynamics Project (CERGOP), a software tool was developed to monitor the continuously operating reference stations of the network. The development was carried out using C++ libraries available for the most common operating systems. Here we describe the basic features of this package and give an overview of its present status.