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Large Scale Absolute Gravity Control in South America — JILAG-3 Campaigns 1988–1991 —

  • Wolfgang Torge
  • Ludger Timmen
  • Rüdiger H. Röder
  • Manfred Schnüll
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 113)

Abstract

The Institut für Erdmessung (IFE), University of Hannover, Germany, performed a large-scale gravity control survey between 1988 and 1991 in South America, in cooperation with university institutes and state agencies of the countries involved and supported by “Deutsche Forschungsgemeinschaft (DFG)” and “Instituto Panamericano de Geografía e Historia (IPGH)”. This control system covers a large part of South America by establishing 22 absolute gravity stations with additional local eccenters. After a first observation campaign in Venezuela in 1988 (6 stations), a project in Brazil (7 stations), Uruguay (2 stations) and Argentina (3 stations) has been performed in 1989. A final campaign in 1991 concentrated on Argentina (3 new stations) and Uruguay (1 new station, 1 reoccupied). Three gravity stations (Sta. Elena, Brasilia, Tandil) are part of the International Absolute Gravity Basestation Network (IAGBN,set A). In addition, the stations serve as absolute gravity control for geodynamic networks in the Central and Venezuelan Andes and they improve existing national gravity networks.

Keywords

Earth Tide Gravity Variation Absolute Gravity Absolute Station Tidal Gravity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Wolfgang Torge
    • 1
  • Ludger Timmen
    • 1
  • Rüdiger H. Röder
    • 1
  • Manfred Schnüll
    • 1
  1. 1.Institut für ErdmessungUniversity of HannoverHannoverGermany

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