Abstract
This work is aimed at estimating the long-term continuing measurements of the acceleration of gravity at the Ledovo fundamental gravity station and first order stations of the gravimetric network of the Russian Federation. The observations are carried out by absolute gravimeters beginning from the mid-1970s to the present time. It is shown that the observed value of the acceleration of gravity at the Ledovo station has a tendency to decrease during last 45 years; according to our estimates, the value decreased by 32 µGal. The measurements carried out at first order gravity stations in Russia after renewal of network maintenance are compared with measurements carried out in the 1980s.
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ACKNOWLEDGMENTS
We are deeply grateful to previous generations of gravimetrists and, first of all, to Yu.D. Boulanger who made it possible to carry out this work.
Funding
The study was performed on the state assignment for the Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, and supported by the Russian Science Foundation, project no. 22-17-20035.
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Translated by A. Nikol’skii
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Koneshov, V.N., Drobyshev, N.V., Sermyagin, R.A. et al. Results of Estimating the Absolute Gravimetric Measurements at the Ledovo Fundamental Gravity Station and on the First Order Gravimetric Network of Russia. Izv., Phys. Solid Earth 59, 1002–1008 (2023). https://doi.org/10.1134/S1069351323060095
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DOI: https://doi.org/10.1134/S1069351323060095