Abstract
Geophysical monitoring in seismically active areas depends on geodeformation processes in the earth's crust. Observations of earth's crust strain-stress using gps-measurements, laser interferometers give only an opportunity to analyze the dynamics in time without the possibility of extrapolation to adjacent areas. In this regard, it is useful to apply a radar interferometry technology to measure the displacements of the earth's surface. The report includes the results of processing the radar data of the Sentinel-1A satellite. Several qualitative interferometric pairs were obtained during the period from June to October 2016. A high coherence coefficient is observed in open areas in the vicinity of volcanic structures and adjacent territories, as well as on the west coast of Kamchatka, where there is no high vegetation. The main factor that significantly reduces the coherence of images is the forest cover. Possibility of estimating the surface displacement at regions with a high coherence coefficient is discussed.
Highlights
There are several instrumental geophysical stations in Kamchatka region
We investigate pairs of radar data in Southern Kamchatka because of the location of varios geophysical stations near Petropavlovsk-Kamchatsky
Uzon caldera strain-stress at Kamchatka was observed by satellite [6]
Summary
There are several instrumental geophysical stations in Kamchatka region. The aim is a monitoring of geophysical variations of seismic and volcano’s activity and its influence on geophysical processes. The main impact on geophysical fields is a stress-strain state of the earth’s crust [1,2,3,4]. In this paper we analyze Sentinel-1A satellite SAR data in order to compare modeling results with InSAR data. We investigate pairs of radar data in Southern Kamchatka because of the location of varios geophysical stations near Petropavlovsk-Kamchatsky.
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