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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6754
Title: SAR interferometry in post-seismic ground deformation detection related to the 2001 Bhuj earthquake, India
Authors: Saraf, Arun Kumar
Das, Josodhir D.
Biswas A.
Rawat V.
Sharma K.
Suzat Y.
Published in: International Journal of Remote Sensing
Abstract: The 2001 Bhuj earthquake, which occurred due to rupturing of a hidden reverse fault, caused large-scale ground deformation. The ground deformations in the Bhuj earthquake-affected region have been analysed using two interferometric synthetic aperture radar (InSAR) data sets. The data sets belong to the years 2003-2004 and 2004-2005, covering an area east of Bhuj falling on near-flat terrain north of Kutch Mainland Fault (KMF). Two interferograms have been generated successfully displaying the interference fringes in the study area, enabling us to draw interesting observational inferences. The 2003-2004 interferogram image exhibits upliftment of about 8 cm (surface motion towards the satellite) around Kunjisar village and also upliftment of 25 and 5 cm in the other two areas north of Kunjisar, whereas the interferogram image belonging to the year 2004-2005 reveals subsidence of about 17 cm (surface motion away from the satellite) in Kunjisar area along with subsidence of about 28 and 5 cm in the two areas north and northwest of Kunjisar, respectively. Hence, between the years 2003 and 2005, two different episodes of upliftment and subsidence have been observed in the study area. The ground upliftment during 2003-2004 probably indicates that the last phase of ground deformation in the earthquake-affected region has been followed by the onset of subsidence during 2004-2005 as the rock volume involved in stress-strain processes began to experience a relaxation phase. © 2012 Copyright Taylor and Francis Group, LLC.
Citation: International Journal of Remote Sensing (2012), 33(4): 1296-1308
URI: https://doi.org/10.1080/01431161.2010.549855
http://repository.iitr.ac.in/handle/123456789/6754
Issue Date: 2012
Publisher: Taylor and Francis Ltd.
ISSN: 1431161
Author Scopus IDs: 7006460159
7202105464
57195581683
23467947400
26427098600
55070883700
Author Affiliations: Saraf, A.K., Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Das, J., Department of Earthquake Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Biswas, A., Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Rawat, V., Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Sharma, K., Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Suzat, Y., Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Funding Details: For this study, the InSAR data and processing software (SARScape) were procured under a project funded by the Centre of Excellence Disaster Mitigation and Management, Indian Institute of Technology Roorkee, Uttarakhand, India. The authors are also grateful to ESA for supplying the data through Category-1 Project (no. C1P-5642). The authors are also very much thankful to the anonymous reviewers for their meticulous checking and constructive suggestions to improve the manuscript.
Corresponding Author: Saraf, A. K.; Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; email: saraffes@iitr.ernet.in
Appears in Collections:Journal Publications [EQ]
Journal Publications [ES]

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