Overview
Gravity changes are considerable indications of geodynamic and tectonic processes in the region. However, gravimetric records are constantly influenced by hydrological and atmospheric signals all the time.

Atmospheric pressure and precipitation are two of the main factors which influence temporal changes in gravity. Therefore, sufficient and accurate modeling of these effects is indispensable for the interpretation of the measurements of gravity-acceleration. At the Conrad Observatory, the acceleration of gravity is registered by the high precision super-conducted gravimeter GWR SG C025, as well as air pressure in the lab. Additionally, meteorological sensors are installed in the outdoor area to measure parameters including precipitation, temperature, precipitation and wind.


Project aims
This project aimed to provide quality control of exciting meteorological sensors, development of a local network of measuring points around the observatory, as well as implementation of weather radar data on the moisture content of the atmosphere. This enables support of models which can be used to calculate meteorological effects. Main emphases are variations in air pressure and precipitation in form of snow.

Results

The exact record of meteorological and hydrogeological influential quantities and development of a comprehensive modeling method were another innovative step of gravimetric analysis, which allowed a higher significance of gravimetric data regarding geodynamic and geotectonic processes. The results of these measurements could provide further reduction of site noise at the Conrad Observatory for all applied measurement processes.

This project is a another step to efficiently increase utilization of the Conrad Observatory and its excellent technical infrastructure in regards of a distinguished research center. Work on this project contributed to the meteorological application of the observatory.

 
Start March 2010

End February 2011

Project supervisor
Nobert Blaumoser (ZAMG Geophysikalische Elektronik)

Project team
Dr. Bruno Meures (IMGW)

Project partner
Institut für Meteorologie und Geophysik der Universität Wien

Funding
bmwf - Bundesministerium für Wissenschaft und Forschung

 

 


References
Meurers, B., Blaumoser, N., Göschke, M., Haden S., Melichar P., 2001: Das supraleitende Gravimeter in Wien - ein Beitrag zur modernen geodynamischen Forschung. In: Hammerl, Ch., Lenhardt, W., Steinacker R., Steinhauser, P., (eds.), 2001: Die Zentralanstalt für Meteorologie und Geodynamik 1851 - 2001, Meteorologie und Geophysik in Österreich, 608 - 618.

This project was successfully completed.