21 July 2017 Analysis of post-earthquake reconstruction for Wenchuan earthquake based on night-time light data from DMSP/OLS
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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.
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Yang Cao, Jing Zhang, Mingxiang Yang, 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); doi: 10.1117/12.2281758; https://doi.org/10.1117/12.2281758
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