基于地震的断裂带内外温差分析法的改进及其应用研究*
吴 姗1,郭 艳1,曾佐勋2,3,刘福江1,林伟华1,叶云霜1

(1.中国地质大学(武汉)信息工程学院,湖北 武汉 430074; 2.中国地质大学(武汉)

断裂带内外温差法; 热红外遥感; 地震; 热异常

Research on Improved of Temperature Difference Inside-outside Fault Zone Analysis Method Based on Earthquake and Its Application
WU Shan1,GUO Yan1,ZENG Zuoxun2,3,LIU Fujiang1,LIN Weihua1,YE Yunshuang1

(1. Faculty of Information Engineering,China University of Geosciences,Wuhan 430074,Hubei,China)(2. Huazhong Tectonomechanical Research Center,School of Earth Sciences,China Universityof Geosciences,Wuhan 430074,Hubei,China)(3. Joint Research Center for Disaster Prevention and Reduction,Three Gorges ResearchCenter for Geohazards,Ministry of Education,Wuhan 430074,Hubei,China)

inside-outside temperature difference relation analysis method; thermal infrared remote sensing; earthquake; thermal anomaly

备注

针对依据热红外遥感数据的断裂带内外温差分析法存在的不足,在确定断裂带内外区域时引入距断裂带两测和两端的距离,同时综合考虑地形、气候、地物类型等因素对温度的影响将其进行改进,最后将该方法应用于2次地震进行验证。结果 显示,改进算法分析地震热异常的结果与前人研究的结论一致,且该方法对断裂带内外区域的确定相对更加具体,还可以很好地去除多种非震因素的影响。

Aiming at the shortcomings of temperature difference inside-outside fault zone analysis method for thermal infrared remote sensing data,we improved this method for two espects. Firstly,when determining the area inside and outside the fault zone,we introduced the distance between the two measuring points and the two ends of the fault zone. Secondly,the influence of terrain,climate and type of ground objects on temperature is taken into account. Finally,the method is applied to two earthquakes for verification. The results show that the results of the improved algorithm are consistent with those of previous studies,and the method is more specific in determining the area inside and outside the fault zone,and it can also remove the influence of many non-seismic factors.