Abstract
In this work we studied the variations in the total electron concentration (TEC) obtained from measurements of the global navigation system GPS in the preparation zone for the 2010 catastrophic Chilean earthquake (Mw = 8.8) under calm background conditions at a minimum of 24 solar activity (SA) cycles. The analysis of the geodynamic activity and ionospheric TEC disturbances in the seismically active region of this catastrophic earthquake is carried out. A computational technique has been developed that can be used to study TEC variations over seismically active regions.
Highlights
The study of the ionosphere over seismically active regions according to the data of the global navigation systems GPS/GLONASS within the framework of geodynamic monitoring is an urgent task
In [2] it is noted that internal gravitational waves lead to a change in the total electron concentration (TEC) in the ionosphere, which can be recorded by the GLONASS/GPS receiving equipment
A seismic database has been prepared for the source zone of the catastrophic Chilean earthquake of 2010 with Mw = 8.8
Summary
The study of the ionosphere over seismically active regions according to the data of the global navigation systems GPS/GLONASS within the framework of geodynamic monitoring is an urgent task. It is emphasized in [1-3] that movements along a fault in the earth's crust in the region of the earthquake source lead to a significant effect on the atmosphere and emission of gravitational waves along the earth and oceanic surfaces. This work is devoted to the study of seismic data in the source zone of the future strong Chilean earthquake of 2010 with a magnitude of Mw = 8.8 and the total electron concentration variations in the ionosphere over these regions under relatively calm background conditions. The article refines the total electron concentration variations obtained on the basis of GPS measurements in the preparation area of this natural disaster
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