Abstract
The study is devoted to the analysis of the features of the change in the parameter EWH (Equivalent Water Height) over the geoid from the satellite measurements of the GRACE space system in seismically active areas of the strongest underwater earthquakes. The GRACE satellite data archive was created. An interpretation of the disturbed state of the geomedium using digital maps of the spatial distribution of the parameter EWH is performed.
Highlights
Methods for studying the gravitational field from satellite measurements were developed more than 40 years ago
With the help of the CHAMP, GRAСE, and GOCE systems data on the Earth's gravitational field were obtained with high accuracy and high spatial resolution
The archive of data obtained with the help of GOCE satellite equipment contains data for only 4 years, while the GRACE information archive contains satellite measurements for 15 years, including data on space-time variations of water reserves
Summary
Methods for studying the gravitational field from satellite measurements were developed more than 40 years ago. The archive of data obtained with the help of GOCE satellite equipment contains data for only 4 years, while the GRACE information archive contains satellite measurements for 15 years, including data on space-time variations of water reserves. The accuracy of measuring the distance between GRACE satellites is determined by rangefinders up to 10 μm, which allows obtaining data on variations in gravitational force on the basis of differential measurement methods in systems with variable geometry of the arrangement of elements [3]. In this paper we studied the features of the variations of the equivalent water level (parameter EWH) over the geoid contour from the satellite measurements of the GRACE space system in the seismically active regions of the strongest earthquakes in order to reveal the connection between the stressed-deformed state of the geomedium and the processes of preparing the expected main seismic event.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call