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Non-Tectonic Signals in Tectonic Geodesy


Affiliations
1 Department of Earth and Atmospheric Sciences, NIT Rourkela, Rourkela - 769008, India
2 National Centre for Seismology, Ministry of Earth Sciences, New Delhi - 110003, India
 

Earth’s gravitational field, its shape and orientation in the space are the ‘three pillars of geodesy’1,2. In recent times, geodesy has emerged as an interdisciplinary domain in geophysics, which includes tectonics, internal structure of the earth, seismology, hydrology, glaciology, oceanography, meteorology, atmospheric physics, climate science, etc.1. In fact, it has found several applications in earth sciences that a new subject ‘tectonic geodesy’ has evolved, which specifically deals with the application of geodetic techniques in understanding tectonic processes by estimating surface velocity field within tectonically active regions. This technique provides constraints on the spatio-temporal distribution of the lithospheric deformation and surface plate kinematics by exploiting various space-based geodetic techniques (e.g. Global Positioning System (GPS), Very Long Baseline Interferometry (VLBI), Interferometric Synthetic Aperture Radar (InSAR), Doppler Orbitography and Radio positioning Integrated by Satellite (DORIS) and Satellite Laser Ranging (SLR)).
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  • Non-Tectonic Signals in Tectonic Geodesy

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Authors

Bhaskar Kundu
Department of Earth and Atmospheric Sciences, NIT Rourkela, Rourkela - 769008, India
Dibyashakti Panda
Department of Earth and Atmospheric Sciences, NIT Rourkela, Rourkela - 769008, India
Vineet K. Gahalaut
National Centre for Seismology, Ministry of Earth Sciences, New Delhi - 110003, India

Abstract


Earth’s gravitational field, its shape and orientation in the space are the ‘three pillars of geodesy’1,2. In recent times, geodesy has emerged as an interdisciplinary domain in geophysics, which includes tectonics, internal structure of the earth, seismology, hydrology, glaciology, oceanography, meteorology, atmospheric physics, climate science, etc.1. In fact, it has found several applications in earth sciences that a new subject ‘tectonic geodesy’ has evolved, which specifically deals with the application of geodetic techniques in understanding tectonic processes by estimating surface velocity field within tectonically active regions. This technique provides constraints on the spatio-temporal distribution of the lithospheric deformation and surface plate kinematics by exploiting various space-based geodetic techniques (e.g. Global Positioning System (GPS), Very Long Baseline Interferometry (VLBI), Interferometric Synthetic Aperture Radar (InSAR), Doppler Orbitography and Radio positioning Integrated by Satellite (DORIS) and Satellite Laser Ranging (SLR)).

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DOI: https://doi.org/10.18520/cs%2Fv115%2Fi5%2F822-825