The contribution of GPS data to the detection of the Earth's crust deformations illustrated by GPS campaigns in the Adria region
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Abstract:
From a geodetic point of view, the detection of areas within the Earth's crust that are strongly deformed can be seen as the first step in locating zones needing more precise study. In such studies, the datum problem of estimated velocities plays a key role in the geodynamical interpretation of results. In this paper, we will briefly present the advantages of an analytical surface deformation theory to describe movements of the Earth's crust and discuss the results of the deformation analysis based on the GPS (Global Positioning System) campaigns carried out in the area of the Adriatic Sea.Keywords:
Satellite geodesy
Earth crust
geodynamics
Earth crust
Satellite geodesy
Polar motion
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Satellite geodesy
Gravimetry
Gravity of Earth
Ocean tide
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VLBI, SLR, and GPS have been introduced and used to study geodesy and geodynamics in Japan as well as elsewhere in the world. The present article briefly overviews Japanese recent activities concerning the applications of these techniques. VLBI and SLR have been used mainly in international experiments such as the Monitor Earth Rotation and Intercompare Techniques (MERIT) campaign and the Crustal Dynamics Project (CDP). These projects have succeeded in determining the relative plate motions around the Japanese Islands. GPS, on the other hand, has been used mostly to monitor local crustal deformations for earthquake prediction research. The combination of these techniques may lead us to a unified view of crustal deformation and the dynamics of the upper mantle.
geodynamics
Very-long-baseline interferometry
Satellite geodesy
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geodynamics
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geodynamics
Satellite geodesy
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