Investigating co-seismic deformation of the 2008 Wenchuan earthquake with ALOS SCANSAR interferometric observations

Author

Cui, Xiai ; Zeng, Qiming ; Liang, Cunren ; Jiao, Jian

Author_Institution

Inst. of Remote Sensing & GIS, Peking Univ., Beijing, China

fYear

2010

fDate

25-30 July 2010

Firstpage

4612

Lastpage

4615

Abstract

On May 12th, 2008, a destructive earthquake of magnitude 8.0 struck Wenchuan. The seismic region is located at the transition zone between Qinghai-Tibet Plateau and the Sichuan Basin, which has a complex geological tectonic background. In this paper, we intend to investigate the Wenchuan earthquake using the Differential Interferometric SAR(D-InSAR) technique. Due to the large scale of the crustal deformation affected by the disastrous earthquake, SCANSAR images show more advantages than conventional strip-map mode images. And taking account the vegetation conditions, the L band images are suitable than the C band images for our study. Therefore, we choose to use ALOS SCANSAR interferometric observations to obtain a preliminary co-seismic displacement filed of the Wenchuan earthquake.

Keywords

earthquakes; radar interferometry; remote sensing by radar; seismology; synthetic aperture radar; vegetation; AD 2008 05 12; ALOS SCANSAR interferometric observation; D-InSAR technique; Differential Interferometric SAR; Qinghai-Tibet Plateau; Sichuan Basin; Wenchuan; coseismic deformation; earthquake; vegetation condition; Coherence; Earthquakes; L-band; Radar imaging; Surface topography; Synthetic aperture radar; ALOS; D-InSAR; SCANSAR; Wenchuan earthquake; coseismic displacement filed;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International

Conference_Location

Honolulu, HI

ISSN

2153-6996

Print_ISBN

978-1-4244-9565-8

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2010.5651079

Filename

5651079