MONITORING OF SEISMOACTIVE ZONES BASED ON PROCESSING OF SATELLITE GRAVITATIONAL DATA
https://doi.org/10.52676/1729-7885-2020-3-122-128
Abstract
As a result of the processing of gravimetric data from the GOSE and GRACE satellites, a global gravimetric map of the vertical gradient of gravity and a gravimetric map for the Northern Tien Shan region were obtained. In constructing the vertical gradient of gravity at the height of the satellite, the data of the gravitational gradient from the website of the European Space Agency were used. The provided gravitational gradient data formats are defined by two main subsets of files: a subset of gravitational gradients in the gradiometer reference system (GRF) and a subset of gradients in the reference system that rotates relatively to the ground reference system (TRF), in particular, in a spherical locally north-oriented reference system (LNOF). The gradients of the gravitational gradient 225 km and 255 km above the ellipsoid were calculated using GRACE-GOCE gravity gradients along the orbit as input. Satellite gravity data are used to analyze seismically active zones. As a result of studies, it was found that the epicenters of the centers of large earthquakes correlate with the location of the zones of sharp changes in the vertical gradient of gravity.
About the Authors
A. S. Kim
Institute of Ionosphere of National Center for Space Research and Technology
Kazakhstan
Kazakhstan
Almaty
Yu. G. Litvinov
Institute of Ionosphere of National Center for Space Research and Technology
Kazakhstan
Kazakhstan
Almaty
A. B. Andreyev
Institute of Ionosphere of National Center for Space Research and Technology
Kazakhstan
Kazakhstan
Almaty
V. I. Kapytin
Institute of Ionosphere of National Center for Space Research and Technology
Kazakhstan
Kazakhstan
Almaty
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Review
For citations:
Kim A.S., Litvinov Yu.G., Andreyev A.B., Kapytin V.I. MONITORING OF SEISMOACTIVE ZONES BASED ON PROCESSING OF SATELLITE GRAVITATIONAL DATA. NNC RK Bulletin. 2020;(3):122-128. (In Russ.) https://doi.org/10.52676/1729-7885-2020-3-122-128
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