Analysis of post-earthquake reconstruction for Wenchuan earthquake based on night-time light data from DMSP/OLS

Yang Cao; Jing Zhang; Mingxiang Yang; Xiaohui Lei

doi:10.1117/12.2281758

21 July 2017 Analysis of post-earthquake reconstruction for Wenchuan earthquake based on night-time light data from DMSP/OLS

Yang Cao, Jing Zhang, Mingxiang Yang, Xiaohui Lei

Author Affiliations +

Proceedings Volume 10420, Ninth International Conference on Digital Image Processing (ICDIP 2017); 104204W (2017) https://doi.org/10.1117/12.2281758
Event: Ninth International Conference on Digital Image Processing (ICDIP 2017), 2017, Hong Kong, China

Abstract

At present, most of Defense Meteorological Satellite Program's Operational Linescan System (DMSP/OLS) night-time light data are applied to large-scale regional development assessment, while there are little for the study of earthquake and other disasters. This study has extracted night-time light information before and after earthquake within Wenchuan county with adoption of DMSP/OLS night-time light data. The analysis results show that the night-time light index and average intensity of Wenchuan county were decreased by about 76% and 50% respectively from the year of 2007 to 2008. From the year of 2008 to 2011, the two indicators were increased by about 200% and 556% respectively. These research results show that the night-time light data can be used to extract the information of earthquake and evaluate the occurrence of earthquakes and other disasters.

Citation Download Citation

Yang Cao, Jing Zhang, Mingxiang Yang, and Xiaohui Lei "Analysis of post-earthquake reconstruction for Wenchuan earthquake based on night-time light data from DMSP/OLS", Proc. SPIE 10420, Ninth International Conference on Digital Image Processing (ICDIP 2017), 104204W (21 July 2017); https://doi.org/10.1117/12.2281758

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