川滇地区长波辐射场变化与地震活动关系研究  

Research on relation between the OLR field change and earthquake activity in Chuan-Dian region of China

作　　者：康春丽[1] 

机构地区：[1]中国地震台网中心,北京100045

出　　处：《地震》2008年第3期43-48,共6页Earthquake

基　　金：地震科学联合基金项目(106039);"十一五"科技支撑项目(2006BAC01B03-02-03)

摘　　要：2007年6月3日宁洱6．3级地震发生之前，在川滇地区（20°～35°N，95°～110°E）出现了一次显著的OLR短期和临震的异常增强现象。对该区多年来OLR场的连续变化分析表明，这种增强现象在强震多发年与平静年有明显的差异，其中在地震多发年OLR数值场不仅为正距平，而且震前短期大多增强幅度大；而在地震平静年OLR数值场变化则多为负距平且波动小。上述结果对今后应用卫星遥感长波辐射信息跟踪监视和预测强震有启示性意义。Before the Ning＇er Ms6.3.earthquake, the thermal infrared OLR field of Chuan- Dian region （Long. 95°～110°, Lat. 20°～35°） shows once remarkable short-term and imminent anomaly reinforcement phenomenon. This enhancing phenomenon has obvious difference from those occurred during seismically active and quiet period： during the active period, the pre-earthquake OLR field is positive depareure and the ort-term enhance ment is obviously great; during the quiet period, the OLR field is negative depareure and shows small fluctuation. The results have the enlightenment significance to the strong earthquake monitoring and prediction in the future using the satellite remote sensing long wave radiation information.

关 键 词：宁洱6.3级地震 川滇地区 长波辐射 异常增强 

分 类 号：P315.7[天文地球—地震学]