强震前地气系统长波辐射(OLR)异常的成因  

The OLR anomaly and mechanism Before Tibet earthquake(M6.9)

作　　者：康春丽[1] 韩延本[2] 刘德富[3] 曹忠权 

机构地区：[1]中国地震台网中心,北京100045 [2]中国科学院国家天文台,北京100012 [3]中国地震局地震预测研究所,北京100036 [4]西藏自治区地震局,拉萨850000

出　　处：《地球物理学进展》2008年第6期1703-1708,共6页Progress in Geophysics

基　　金：国家科技支撑项目(2008BAC35B03);中俄国际科技合作项目(2007DFR20030);地震科学联合基金项目(106039)联合资助

摘　　要：本文针对2008年1月9日发生在西藏阿里地区的改则6.9级地震,分析了卫星遥感我国西部地区长波辐射(OLR)信息场的月际和日际变化特征,研究了临震前震中区附近长波辐射的显著增强与其所处大气压力变化的同步关联现象,认为震前长波辐射异常征象的成因可能源自大气而非地热,临震前的大气压力增强是改则6.9级地震发生的诱触发因素,而长波辐射变化信息可作为表征大气诱触发地震动力的一个重要指征物理量.To the Tibet All district M6.9 earthquake occurred on 9/01/2008, the monthly and daily changing characteristics of satellite remote sensing Outgoing Long-wave Radiation（OLR） messages at west part of China are analyzed in this paper. After researching the relative phenomena in step between the OLR increase and the atmosphere pressure change, it is suggested that the OLR anomaly increasing origination may be in the atmosphere not the ground heat, and the pressure increasing before earthquake may be to induce the M6.9 earthquake occurrence. Certainly, the OLR message is also a important physical element as a indicator of atmosphere trigger earthquake.

关 键 词：地气系统射出长波辐射 临震辐射异常成因 大气压力诱触发地震 

分 类 号：P315[天文地球—地震学]