GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYA

The Himalayan region has experienced a number of large magnitude earthquakes in the past. Seismicity is mainly due to tectonic activity along the thrust faults that trend parallel to the Himalayan mountain belt. In order to study the ongoing tectonic process, we report Global Positioning System (GPS...

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Main Authors: Y. Sharma, S. Pasari, O. Dikshit, K. E. Ching
Format: Article
Language:English
Published: Copernicus Publications 2018-11-01
Series:The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Online Access:https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-5/451/2018/isprs-archives-XLII-5-451-2018.pdf
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author Y. Sharma
S. Pasari
O. Dikshit
K. E. Ching
author_facet Y. Sharma
S. Pasari
O. Dikshit
K. E. Ching
author_sort Y. Sharma
collection DOAJ
description The Himalayan region has experienced a number of large magnitude earthquakes in the past. Seismicity is mainly due to tectonic activity along the thrust faults that trend parallel to the Himalayan mountain belt. In order to study the ongoing tectonic process, we report Global Positioning System (GPS) measurements of crustal deformation in the Garhwal-Kumaun Himalaya through two continuous and 21 campaign stations. We collect GPS data since 2013 and analyze with the GAMIT/GLOBK suite of postprocessing software. Our estimated surface velocities in ITRF2008, India-fixed, and Eurasia-fixed reference frame lie in the range of 42–52 mm/yr, 1–6 mm/yr, and 31–37 mm/yr, respectively. We observe insignificant slip rate (∼ 1 mm/yr) of HFT that indicates its locking behavior. The slip rates of MBT and MCT, however, are consistent with the seismic activity of the study region.
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spelling doaj.art-2ac278ba56a3468c8eb4f9c8c7c5cfa62022-12-22T03:08:29ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342018-11-01XLII-545145410.5194/isprs-archives-XLII-5-451-2018GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYAY. Sharma0S. Pasari1O. Dikshit2K. E. Ching3Birla Institute of Technology & Science, Pilani, IndiaBirla Institute of Technology & Science, Pilani, IndiaIndian Institute of Technology Kanpur, IndiaNational Cheng Kung University, Tainan, TaiwanThe Himalayan region has experienced a number of large magnitude earthquakes in the past. Seismicity is mainly due to tectonic activity along the thrust faults that trend parallel to the Himalayan mountain belt. In order to study the ongoing tectonic process, we report Global Positioning System (GPS) measurements of crustal deformation in the Garhwal-Kumaun Himalaya through two continuous and 21 campaign stations. We collect GPS data since 2013 and analyze with the GAMIT/GLOBK suite of postprocessing software. Our estimated surface velocities in ITRF2008, India-fixed, and Eurasia-fixed reference frame lie in the range of 42–52 mm/yr, 1–6 mm/yr, and 31–37 mm/yr, respectively. We observe insignificant slip rate (∼ 1 mm/yr) of HFT that indicates its locking behavior. The slip rates of MBT and MCT, however, are consistent with the seismic activity of the study region.https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-5/451/2018/isprs-archives-XLII-5-451-2018.pdf
spellingShingle Y. Sharma
S. Pasari
O. Dikshit
K. E. Ching
GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYA
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
title GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYA
title_full GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYA
title_fullStr GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYA
title_full_unstemmed GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYA
title_short GPS-BASED MONITORING OF CRUSTAL DEFORMATION IN GARHWAL-KUMAUN HIMALAYA
title_sort gps based monitoring of crustal deformation in garhwal kumaun himalaya
url https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-5/451/2018/isprs-archives-XLII-5-451-2018.pdf
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