OLR方法在黑龙江地区中强地震前异常现象的探讨

The study about the anomalous phenomena before several mediumstrong earthquakes in Heilongjiang Province

利用卫星遥感长波辐射(OLR)资料,分析黑龙江省2004年一2008年发生的几次M_L4.0以上中强地震前的OLR资料,发现地震发生前,在震中附近地区有长波辐射增强的特征,可能与强震孕育过程中的热状态有关,识别和提取卫星对地遥感红外波段的热兆信息,可望在中强地震监测预报的层面上有新的突破。

Using Outgoing-Longwave-Radiation data of NOAA remote sensing satellite, the authors analyzed the OLR anomalous phenomena before several earthquakes （ML≥4.0） occurred in Heilongjiang Province during 2004 2007, and found that the anomalies of infrared radiation appeared near the area of epicenter. The anomalies maybe related to the hot state during the pregnancy of strong earthquake. To recognize the ＂hot-precursor＂ from the NOAA satellite remote data of infrared wave we may make new breakthrough in moderate and strong earth-quake monitoring and predication.