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利用卫星高光谱技术可以监测到大震前后地下气体释放引起的气体地球化学异常。利用AIRS标准产品数据中CO和O3月平均数据构建全球9年(2003—2011年)平均CO月背景场和O3月背景场,运用差值法(地震发生当年数据—背景场数据)开展震例研究。通过调研全球自2003年以来7级以上震例,系统地进行2003年以来全球7级以上地震的震例分析,对典型震例进行分析,总结CO和O3时空异常特征。
The use of satellite hyperspectral technology can monitor the gas geochemical anomalies caused by the release of underground gas before and after the earthquake. Using the CO and O3 monthly average data from the AIRS standard product data, we constructed the mean CO monthly background field and the O3 monthly spatio-temporal field during the 9-year period (2003-2011) using the difference method (earthquake occurrence data-background field data) the study. By investigating earthquakes of magnitude 7 or above in the world since 2003, this paper systematically analyzes the earthquakes of earthquakes of magnitude 7 or above in the world since 2003, analyzes the typical earthquakes and summarizes the temporal and spatial characteristics of CO and O3.