卫星热遥感技术在地震预测中应用研究进展

已有的研究结果表明。许多强地震前存在热异常。异常的表现形式是多种多样的，异常的时空分布与异常区的地质构造、地理环境、季节、天气等因素有关。内陆地区的地震前常产生热红外异常，而沿海地区的地震前则更容易出现潜热通量异常。红外辐射可以通过卫星红外通道的传感器观测到。而潜热通量可以使用微波遥感观测资料计算或红外遥感与地面观测资料联合反演。应用卫星遥感技术研究地震前的热异常虽然目前仍然存在许多问题，但随着技术的进步和研究工作的深入，应该能在地震预测中发挥重要作用。

REVIEW OF APPLYING SATELLITE THERMALLY REMOTE SENSING TECHNOLOGY TO EARTHQUAKE PREDICTION

Many authors have reported that thermal anomalies are discovered before many strong earthquakes. The anomalies appeared in varied ways that depend on tectonic settings, geographical conditions, seasons and weather etc. Satellite infrared anomalies are often found before inland earthquakes, and anomalous increase of surface heat latent flux is usually discovered before the earthquakes in coastal areas. Infrared radiation can be observed by satellite, and surface heat latent flux can be retrieved form microwave remote sensing data or infrared remote sensing data and observational data on the ground surface. Although there are some problems in applying remote sensing technology to study thermal anomalies before earthquakes, it becomes more and more important in earthquake prediction with the progress of satellite observed technology and the study on seismic thermal anomaly.