Abstract
The cooperative gravimetric research of Venezuelan and German institutions was completed in 1988 by the observation of six stations with absolute gravity meters. These six stations serve as a reference for the International Absolute Gravity Basestation Network (1 station), the National Gravity Network (6 stations), and the Venezuelan Andes Geodynamics Network (2 stations). The precision of the absolute gravity values is estimated to be better than ±0,1 μms-2. In this way, the National Gravity Network obtains an average accuracy of ± 0.12 μms-2, and the geodynamics network in the Venezuelan Andes gets an absolute orientation in level and scale. The latter network was reobserved for the fourth time during ten years by relative gravimeters simultaneously with the absolute gravity observations. We find significant seasonal gravity variations caused by tropical rainfalls and indications of small secular gravity changes.
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© 1993 Springer-Verlag Berlin Heidelberg
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Drewes, H., Torge, W., Röder, R., Badell, C., Bravo, D., Chourio, O. (1993). Geodynamic Research by Absolute and Relative Gravimetry in Venezuela. In: Torge, W., Fletcher, A.G., Tanner, J.G. (eds) Recent Geodetic and Gravimetric Research in Latin America. International Association of Geodesy Symposia, vol 111. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-88055-1_17
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DOI: https://doi.org/10.1007/978-3-642-88055-1_17
Publisher Name: Springer, Berlin, Heidelberg
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