Selection of a calibration system for relative gravimeters and testing of the processing using the example of the Zhetygen calibration baseline in Kazakhstan
Sermiagin R. Kemerbayev N. Kassymkanova K.-K. Mussina G. Shkiyeva M. Kosarev N. Samarkhanov K. Batalova A. Rakhimzhanov A. Kalen Y.
December 2024Akademiai Kiado ZRt.
Acta Geodaetica et Geophysica
2024#59Issue 4381 - 404 pp.
This article consolidates and organizes modern methods for calibrating relative gravimeters, aiming to streamline the selection and implementation of effective calibration systems, particularly in Kazakhstan. The concept of the calibration function and various methods for its determination are presented. Practical implementations of laboratory methods relevant to modern high-precision relative gravimeters are discussed, including the tilt, moving mass, artificial acceleration, and line calibration methods. Data processing through least squares adjustment at the calibration line and an overview of existing software packages for gravity observation equalization are explored. The article also covers existing horizontal and vertical calibration systems in different countries, detailing their main characteristics and schematics. Finally, an estimation of scale factors for five years of measurements with Scintrex CG-5 gravimeters at the Zhetygen calibration line in Kazakhstan is provided.
Calibration of relative gravimeters , Gravity calibration baseline , Gravity measurements , Relative gravity , Relative gravity adjustment
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RSE National Centre of Geodesy and Spatial Information, 20 Mangilik El Ave, Astana, 010000, Kazakhstan
GEOID LLP., Astana, Kazakhstan
Satbayev University, Almaty, Kazakhstan
Siberian State University of Geosystems and Technologies, Novosibirsk, Russian Federation
International Science Complex “Astana”, Astana, Kazakhstan
SPC Geoken LLP, Almaty, Kazakhstan
RSE National Centre of Geodesy and Spatial Information
GEOID LLP.
Satbayev University
Siberian State University of Geosystems and Technologies
International Science Complex “Astana”
SPC Geoken LLP
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