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Gahalaut, Vineet K.
- Non-Tectonic Signals in Tectonic Geodesy
Abstract Views :184 |
PDF Views:19
Authors
Affiliations
1 Department of Earth and Atmospheric Sciences, NIT Rourkela, Rourkela - 769008, IN
2 National Centre for Seismology, Ministry of Earth Sciences, New Delhi - 110003, IN
1 Department of Earth and Atmospheric Sciences, NIT Rourkela, Rourkela - 769008, IN
2 National Centre for Seismology, Ministry of Earth Sciences, New Delhi - 110003, IN
Source
Current Science, Vol 115, No 5 (2018), Pagination: 822-825Abstract
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)).Full Text
References
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- A Quiet but Deep Trouble in Tonga Subduction Zone
Abstract Views :153 |
PDF Views:16
Authors
Affiliations
1 National Centre for Seismology, Ministry of Earth Sciences, New Delhi 110 023, IN
1 National Centre for Seismology, Ministry of Earth Sciences, New Delhi 110 023, IN
Source
Current Science, Vol 115, No 11 (2018), Pagination: 2005-2006Abstract
The Tonga subduction zone marks the convergent plate boundary between the Pacific and Australian plates, and it produces more large-magnitude deep earthquakes (depth >300 km) than anywhere else in the world. Deep earthquakes constitute less than 1% of the total earthquakes (M > 6) of the world and among them, ~66% are hosted by the Tonga subduction zone alone. On 19 August 2018, it produced globally the second largest deep earthquake (Mw 8.2, depth ~580 km) in the instrumentally recorded history of earthquakes. The 24 May 2013 Okhotsk earthquake with Mw 8.3 still holds the record for being the largest magnitude deep earthquake.Full Text
- Two decades of progress in the understanding of the Indo-Burmese Arc plate circuit
Abstract Views :60 |
PDF Views:17
Authors
Affiliations
1 Department of Earth and Atmospheric Sciences, National Institute of Technology, Rourkela 769 008
2 CSIR-National Geophysical Research Institute, Hyderabad 500 007
1 Department of Earth and Atmospheric Sciences, National Institute of Technology, Rourkela 769 008
2 CSIR-National Geophysical Research Institute, Hyderabad 500 007
Source
Current Science, Vol 123, No 3 (2022), Pagination: 259-260Abstract
No Abstract.Full Text
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