Geodetic and Geophysical Research Institute

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The Geodetic and Geophysical Research Institute (GGRI) is an academy in Sopron, western Hungary, near the Austrian border. The Hungarian name is MTA Geodeziai es Geofizikai Kutatóintézet , GGKI for short ; MTA stands for Magyar Tudományos Akadémia . The institute was founded in 1955. The address is: H-9400 Sopron, Csatkai u. 6-8.

This geoscientific research institute of the Hungarian Academy of Sciences (MTA Budapest) consists primarily of research groups for higher geodesy , geoscientific instrument making, engineering geodesy and applied geophysics , as a branch of the Budapest Institute for Geoseismics . The GGRI is partly integrated into the academic teaching and operates a geophysical observatory not far from the city. An important trigonometric point of the Hungarian-Austrian surveying network is located on an observation tower several kilometers from the city .

The current director of the institute is the mathematician József Závoti , his predecessor was the geodesist József Somogyi . The seismologist Péter Varga has been the vice director for a long time . The traditional Tuesday presentations with experts from abroad are organized by J. Verö.

Fields of work

The institute has specialized in the analysis of building and soil deformations on an interdisciplinary basis , with the development and use of high-resolution inclinometers . They allow relative underground measurements of 0.0001 mm over distances of 1 meter. Changes in the groundwater level are of great importance, and their joint investigation with ground inclinations promises new findings.

In 1997, a test area for local geodynamics was set up in the southern Hungarian Mecsek Mountains in order to record ground movements in the area of ​​the tectonic Mecsek Fault. So far, 5 measurement campaigns have been carried out there, which mainly include borehole geophysics , geotechnical inclination measurement as well as leveling , EDM and GPS . The previous series of measurements show that building foundations in solid rock are 10 to 100 times more stable than in unconsolidated sediment .

Similar investigations are being carried out on the 173 m high television tower on a hilltop near Sopron . The tower movements under wind load and thermal effects ( solar radiation ) and how they are transferred to the subsurface are analyzed there . The effects of small ground shifts due to local geodynamics or distant earthquakes or local geodynamic processes are also examined within a radius of 90 m.

Partnerships

In addition to partnerships with Hungarian research centers, the GGRI also cooperates with some institutes in Germany, Austria and Slovakia . a. with the University of Bonn (geodynamic deformation measurements in the Lower Rhine Bay, see web link), with the Vienna University of Technology (geoid determination, sedimentary basin , Sopron-Vienna zenith camera ) and with Slovak academy institutes.

Web links

Individual evidence

  1. ↑ Geodetic and Geophysical Research Institute of HAS ( Memento of the original from July 6, 2015 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. mta.hu. Retrieved February 1, 2015.  @1@ 2Template: Webachiv / IABot / mta.hu
  2. ↑ Final Report Sopron Project / HJK . Geo.uni-bonn.de. January 13, 2000. Archived from the original on May 27, 2006. Retrieved July 6, 2010.

Coordinates: 47 ° 41 ′ 1.4 ″  N , 16 ° 34 ′ 59 ″  E