日本9级和缅甸7.2级地震热辐射表现特征  

The characteristics of seismic thermal radiation of Japan M_s 9.0 and Myanmar M_s 7.2 earthquake

作　　者：张元生[1,2] 郭晓[1,2] 魏从信[1,2] 沈文荣[1,3] 惠少兴[1] 

机构地区：[1]中国地震局兰州地震研究所,兰州730000 [2]中国地震局地震预测研究所兰州创新基地,兰州730000 [3]地球物理国家野外科学观测研究站,兰州730000

出　　处：《地球物理学报》2011年第10期2575-2580,共6页Chinese Journal of Geophysics

基　　金：973计划项目(2008CB425701);国家自然科学基金项目(40874029)资助

摘　　要：应用中国静止气象卫星热红外遥感亮温资料获得其相对功率谱信息,对大范围全时段的相对功率谱信息进行了分析,其结果为:日本9.0级和缅甸7.2级地震发生前存在显著的亮温变化,震前6个月左右异常开始出现,相对变化幅度达10倍以上;这两次地震的异常区域大小和时间变化形态存在明显差异,可能是地质和气候环境所致.Using the satellite thermal infrared brightness temperature data from Chinese geostationary meteorological satellite, we got the relative power spectrum and analyzed the data in wide range and full-time. The results showed that, firstly, there are significant changes in brightness temperature before Japan MS9.0 and Myanmar Ms7. 2 earthquake. The thermal- infrared anomalies appeared about six months before the earthquake. The change amplitude is more than 10 times than normal relative amplitude. Secondly, there are significant differences between the two earthquakes in the size of abnormal region and the time curve. The geological and climatic conditions may cause the different change of thermal radiation.

关 键 词：地震 热红外 亮温 相对功率谱 

分 类 号：P315[天文地球—地震学]