期刊
INTERNATIONAL JOURNAL OF REMOTE SENSING
卷 31, 期 13, 页码 3521-3534出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/01431161003727689
关键词
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资金
- National State Key Basic Research Project [2007CB714404]
- Natural Science Foundation of China [40871173]
- Special Grant For Prevention and Treatment of Infectious Diseases [2008ZX10004-012]
- Key Science and Technology R&D program of Qinghai Province [2006-6-160-01]
The earthquake-induced barrier lakes that are caused by landslides are at risk of bursting after excessive rainfall, and they are a serious threat to the surrounding residents. This paper proposes a change detection approach of the barrier lake using the method of post-classification comparison combined with background subtraction. The case studied in the paper is the detection of the Tangjiashan barrier lake, which is one of the largest lakes induced by the Wenchuan Earthquake on 12 May 2008. Both the pre- (31 March 2007) and post-earthquake (16 May 2008) images of the Advanced Land Observing Satellite (ALOS) Advanced Visible and Near Infrared Radiometer type 2 (AVINER-2) were collected in the paper. The results show that the river widened through the Zhangping area, increasing from 90m pre-earthquake to 545m post-earthquake, and the surface area of the barrier lake increased from 0.945 km2 to 1.471 km2.
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