Extending resolution of fault slip with geodetic networks through optimal network design
Geodetic networks consisting of high precision and high rate Global Navigation Satellite Systems (GNSS) stations continuously monitor seismically active regions of the world. These networks measure surface displacements and the amount of geodetic strain accumulated in the region and give insight int...
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sg-ntu-dr.10356-831502023-02-28T16:42:41Z Extending resolution of fault slip with geodetic networks through optimal network design Sathiakumar, Sharadha Barbot, Sylvain Denis Agram, Piyush Asian School of the Environment Science::Geology Geodetic Network Optimization Seafloor Geodesy Geodetic networks consisting of high precision and high rate Global Navigation Satellite Systems (GNSS) stations continuously monitor seismically active regions of the world. These networks measure surface displacements and the amount of geodetic strain accumulated in the region and give insight into the seismic potential. SuGar (Sumatra GPS Array) in Sumatra, GEONET (GNSS Earth Observation Network System) in Japan, and PBO (Plate Boundary Observatory) in California are some examples of established networks around the world that are constantly expanding with the addition of new stations to improve the quality of measurements. However, installing new stations to existing networks is tedious and expensive. Therefore, it is important to choose suitable locations for new stations to increase the precision obtained in measuring the geophysical parameters of interest. Here we describe a methodology to design optimal geodetic networks that augment the existing system and use it to investigate seismo‐tectonics at convergent and transform boundaries considering land‐based and seafloor geodesy. The proposed network design optimization would be pivotal to better understand seismic and tsunami hazards around the world. Land‐based and seafloor networks can monitor fault slip around subduction zones with significant resolution, but transform faults are more challenging to monitor due to their near‐vertical geometry. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2019-07-03T04:56:13Z 2019-12-06T15:12:48Z 2019-07-03T04:56:13Z 2019-12-06T15:12:48Z 2017 Journal Article Sathiakumar, S., Barbot, S. D., & Agram, P. (2017). Extending resolution of fault slip with geodetic networks through optimal network design. Journal of Geophysical Research: Solid Earth, 122(12), 10538-10558. doi:10.1002/2017JB014326 2169-9356 https://hdl.handle.net/10356/83150 http://hdl.handle.net/10220/49105 10.1002/2017JB014326 en Journal of Geophysical Research: Solid Earth © 2017 American Geophysical Union. All rights reserved. This paper was published in Journal of Geophysical Research: Solid Earth and is made available with permission of American Geophysical Union. 21 p. application/pdf |
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Science::Geology Geodetic Network Optimization Seafloor Geodesy Sathiakumar, Sharadha Barbot, Sylvain Denis Agram, Piyush Extending resolution of fault slip with geodetic networks through optimal network design |
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Geodetic networks consisting of high precision and high rate Global Navigation Satellite Systems (GNSS) stations continuously monitor seismically active regions of the world. These networks measure surface displacements and the amount of geodetic strain accumulated in the region and give insight into the seismic potential. SuGar (Sumatra GPS Array) in Sumatra, GEONET (GNSS Earth Observation Network System) in Japan, and PBO (Plate Boundary Observatory) in California are some examples of established networks around the world that are constantly expanding with the addition of new stations to improve the quality of measurements. However, installing new stations to existing networks is tedious and expensive. Therefore, it is important to choose suitable locations for new stations to increase the precision obtained in measuring the geophysical parameters of interest. Here we describe a methodology to design optimal geodetic networks that augment the existing system and use it to investigate seismo‐tectonics at convergent and transform boundaries considering land‐based and seafloor geodesy. The proposed network design optimization would be pivotal to better understand seismic and tsunami hazards around the world. Land‐based and seafloor networks can monitor fault slip around subduction zones with significant resolution, but transform faults are more challenging to monitor due to their near‐vertical geometry. |
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Asian School of the Environment |
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Asian School of the Environment Sathiakumar, Sharadha Barbot, Sylvain Denis Agram, Piyush |
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Article |
author |
Sathiakumar, Sharadha Barbot, Sylvain Denis Agram, Piyush |
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Sathiakumar, Sharadha |
title |
Extending resolution of fault slip with geodetic networks through optimal network design |
title_short |
Extending resolution of fault slip with geodetic networks through optimal network design |
title_full |
Extending resolution of fault slip with geodetic networks through optimal network design |
title_fullStr |
Extending resolution of fault slip with geodetic networks through optimal network design |
title_full_unstemmed |
Extending resolution of fault slip with geodetic networks through optimal network design |
title_sort |
extending resolution of fault slip with geodetic networks through optimal network design |
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2019 |
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https://hdl.handle.net/10356/83150 http://hdl.handle.net/10220/49105 |
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1759858398270062592 |