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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6821
Title: Study of effect of seismic displacements on landslide susceptibility zonation (LSZ) in Garhwal Himalayan region of India using GIS and remote sensing techniques
Authors: Pareek N.
Pal S.
Sharma, Mukat Lal
Arora M.K.
Published in: Computers and Geosciences
Abstract: Landslides are the most damaging and threatening aftereffect of seismic events in Garhwal Himalayas. It is evident from past seismic events in Uttarakhand, India that no other phenomena can produce landslides of so great in size and number as a single seismic event can produce.Landslide inventories are produced for the study area before and after the occurrence of Chamoli Earthquake using Panchromatic (PAN) sharpened Linear Imaging Self Scanning-III (LISS-III) images. A sudden increase in number of landslides after the earthquake is observed. Further, two Landslide Susceptibility Zonation (LSZ) maps have been derived using pre- and post-Chamoli Earthquake landslide inventories. The difference of two LSZ indicates that landslides are very complex phenomenon and are affected by static factors in seismic conditions also.An attempt has been made to estimate the seismic displacements using Differential Synthetic Aperture Radar Interferometry (DIn SAR). European Remote Sensing Satellite-1/2 (ERS-1/ 2) SAR images have been used for preparing differential interferogram. Geometric and temporal decorrelation in SAR images is very high in the study area, which limits the use of DInSAR for displacement estimation. Theoretical displacement has been estimated using fault displacement modeling parameters for Chamoli earthquake. Post-Chamoli earthquake landslide inventory is overlaid over displacement map for understanding the impact of seismic displacement pattern with other static factors on the occurrence of landslides. It is observed that distribution and size of landslides is affected by displacement pattern controlled by other static factors also. © 2013 Elsevier Ltd.
Citation: Computers and Geosciences (2013), 61(): 50-63
URI: https://doi.org/10.1016/j.cageo.2013.07.018
http://repository.iitr.ac.in/handle/123456789/6821
Issue Date: 2013
Keywords: Chamoli earthquake
Landslide
Seismic displacement
ISSN: 983004
Author Scopus IDs: 55362280300
37066332700
7403269008
7103319791
Author Affiliations: Pareek, N., Department of Earthquake Engineering, Indian Institute of technology, Roorkee, 247667 Uttarakhand, India
Pal, S., School of Engineering, Gautam Budha University, Greater Noida, 201308 Uttar Pradesh, India
Sharma, M.L., Department of Earthquake Engineering, Indian Institute of technology, Roorkee, 247667 Uttarakhand, India
Arora, M.K., Department of Civil Engineering, Indian Institute of Technology, Roorkee, 247667 Uttarakhand, India
Funding Details: Naveen Pareek is thankful to the Ministry of Human Resource Development, Government of India for providing financial support during his PhD work and data procurement used in this work. The paper has highly benefited by valuable comments by anonymous reviewers on the earlier version of the manuscript. We are also thankful to the editor for suggestions to improve the paper. Naveen Pareek is also thankful to Dr Ashish Mishra, Geologist in ONGC, Government of India for improving the language of the paper. Naveen Pareek is also thankful to Anil Chandla, Scientist, Government of India for his continuous support.
Corresponding Author: Pareek, N.; Department of Earthquake Engineering, Indian Institute of technology, Roorkee, 247667 Uttarakhand, India; email: naveeneq@gmail.com
Appears in Collections:Journal Publications [EQ]

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