InSAR monitoring and synthetic analysis of the surface deformation of Fanjiaping landslide in the Three Gorges Reservoir area

FAN Jinghui; QIU Kuotian; XIA Ye; LI Man; LIN Hao; ZHANG Hongtao; TU Pengfei; LIU Guang; SHU Siqi

2017 Vol. 36, No. 9

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FAN Jinghui, QIU Kuotian, XIA Ye, LI Man, LIN Hao, ZHANG Hongtao, TU Pengfei, LIU Guang, SHU Siqi. InSAR monitoring and synthetic analysis of the surface deformation of Fanjiaping landslide in the Three Gorges Reservoir area[J]. Geological Bulletin of China, 2017, 36(9): 1665-1673.

Citation:

FAN Jinghui, QIU Kuotian, XIA Ye, LI Man, LIN Hao, ZHANG Hongtao, TU Pengfei, LIU Guang, SHU Siqi. InSAR monitoring and synthetic analysis of the surface deformation of Fanjiaping landslide in the Three Gorges Reservoir area[J]. Geological Bulletin of China, 2017, 36(9): 1665-1673.

InSAR monitoring and synthetic analysis of the surface deformation of Fanjiaping landslide in the Three Gorges Reservoir area

1.
China Aero Geophysical Survey & Remote Sensing Center for Land and Resources, Beijing 100083, China
2.
Counselors'Office of the State Council, Beijing 100006, China
3.
German Research Centre for Geosciences, Potsdam, Germany
4.
Xinyang Normal University, Xinyang 464000, He'nan, China
5.
China Geological Survey, Beijing 100037, China
6.
China Three Gorges University, Yichang 443002, Hubei, China
7.
Institute of Remote sensing and Digital Earth, CAS, Beijing 100094, China

Received Date: 29 October 2015

Revised Date: 20 December 2016

Publish Date: 25 September 2017

Abstract

Abstract

Fanjiaping landslide, located on the south bank of the Yangtze River in Zigui County of Hubei Province, is one of the large-scale rocky landslides along the main stream in the Three Gorges Reservoir area. The working method and technological sys-tem of high resolution InSAR are briefly introduced in this paper. Furthermore, based on 22 TerraSAR-X images with 3m resolu-tion and the field work about corner reflectors and GPS, the surface deformation of Fanjiaping landslide was monitored. It is found that the deformation was very slow and exhibits linear characteristics in the time domain. Among the 2 sub-landslides of Fanjiaping landslide, Tanjiahe block deformed more strongly than Muyubao block. The maximum linear deformation velocity of Tanjiahe land-slide can reach 300mm/a. A synthetic analysis of precipitation, water level and the deformation results in 2012 shows that rainfall and water level change could hardly affect the surface deformation of Fanjiaping landslide in this year.
- InSAR /
- Three Gorges /
- Fanjiaping landslide /
- surface deformation

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References

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