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地震 ›› 1998, Vol. 18 ›› Issue (3): 240-244.

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张北6.2级地震前的卫星热红外异常①

吕琪琦1), 丁鉴海1), 崔承禹2), 张晋开2), 柳钦火2)   

  1. 1)中国北京 100036 中国地震局分析预报中心;
    2)中国北京 100101 中国科学院遥感应用研究所
  • 收稿日期:1998-03-02 修回日期:1998-03-23 出版日期:1998-07-31 发布日期:2022-09-08
  • 作者简介:吕琪琦,女, 1972年5月出生, 1996年硕士研究生,主要从事热红外遥感在地震预报中的应用等研究工作。
  • 基金资助:
    ①国防科学技术工业委员会资助项目(Y95-10)的部分成果

SATELLITE THERMAL INFRARED ANOMALY BEFORE THE ZHANGBEI EARTHQUAKE Ms= 6.2

Lu Qiqi1), Ding Jianhai1), Cui Chengyu2)   

  1. 1)Center for Analysis and Prediction , CSB, Beijing 100036, China;
    2)Institute of Remote Sensing Applications, CAS, Beijing 100101, China
  • Received:1998-03-02 Revised:1998-03-23 Online:1998-07-31 Published:2022-09-08

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摘要： 利用张北地震前1个月华北北部(37~42°N, 113~119°E)的气象卫星NOAA/ AV HRR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13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。

关键词: 遥感, 临震前兆, 热红外温度异常, 张北地震

Abstract: By using the meteorological satellite NOAA/AV HRR thermal infrared remote sensing data from the northern China (37~42°N, 113~119°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 discussion on the relationship between the earthquake and the thermal infrared temperature anomaly. The results show that distinguishable thermal infrared temperature anomaly occurred along the Zhangjiakou-Bohai Sea fault zone 13 days before the earthquake. The anomaly is strip in shape and accords with the NW-striking geological tectonics; the process of its variation can be approximately divided into three stages: initialization, stable increase and acceleration. The thermal infrared temperature anomaly is used as a n impending precursor and implies the probability of the occurrence of a strong earthquake.

Key words: Remote sensing, Impending precursor, Thermal infrared temperature anomaly, Zhangbei earthquake