【摘要】 利用张北地震前 1个月华北北部 (37～ 42°N,1 1 3～ 1 1 9°E)的气象卫星 NOAA/ AVHRR热红外遥感资料 ,提取震前热红外温度异常 ,研究其时空变化的过程和特征 ,并对热红外温度异常与地震的关系进行初步的探讨。结果表明 ,在张北地震前 1 3天沿张家口 -渤海断裂带确有显著的热红外温度异常出现。异常区域呈条带状 ,且与 NW向地质构造一致 ;温度异常的动态变化可大致分为初始、平缓发展和临震加速 3个阶段。将热红外温度异常作为一种临震前兆对强震的预报具有一定的映震效应更多还原

【Abstract】 By using the meteorological satellite NOAA/ AVHRR thermal infrared remote sensing data from the northern China( 37～ 4 2°N,1 1 3～ 1 1 9°E) one month before the Zhangbei earthquake,the authors extracted the thermal infrared temperature anomaly,studied the process and features of its temporal and spatial variation,and made a preliminary discus- sion on the relationship between the earthquake and the thermal infrared temperature anomaly.The results show that distinguishable thermal infrared temperature anomaly oc- curred along the Zhangjiakou-Bohai Sea fault zone1 3days before the earthquake.The anomaly is strip in shape and accords with the NW-striking geological tectonics;the pro- cess ofits variation can be approximately divided into three stages:initialization,stable in- crease and acceleration.The thermal infrared temperature anomaly is used as an impend- ing precursor and implies the probability of the occurrence of a strong earthquake.更多还原