姚安6.5级地震前的热红外增温特征分析  

ANALYSIS OF THERMAL INFRARED TEMPERATURE INCREASING CHARACTERS BEFORE THE YAOAN EARTHQUAKE MS=6.5

作　　者：董谢琼[1] 徐虹[1] 张俊伟[2] 

机构地区：[1]云南省农业气象与卫星遥感应用中心 [2]云南省地震局,云南昆明650041

出　　处：《云南地理环境研究》2004年第2期1-3,62,M002,共5页Yunnan Geographic Environment Research

基　　金：云南省应用基础研究基金项目(2000D0090M).

摘　　要：利用NOAA/AVHRR资料,通过遥感图象处理、地表温度反演、空间统计分析等技术方法,分析姚安6.5级地震震前的热红外温度变化。对计算结果的单点采样比较和面域剖面分析表明,2000年1月15日姚安6.5级地震前,震区出现了明显的热红外持续增温;震前两天热红外温度与地震平静时段的同期同区域温度相比出现了大面积的3℃～5℃的正值区域;与同期温度背景场相比,在断裂附近震区增温仍较明显。研究还表明,将卫星热红外辐射技术用于实际地震预报还需要解决两个重要问题:一是资料的时间连续性问题;二是热红外异常与地震的孕育、发生的定量关系问题。s: By split window algorithm, land surface temperature was retrieved from NOAA/AVHRR data. The results of comparison of sampling points and surface section analysis showed that there was thermal infrared increasing obviously and lasting a few days before the Yaoan earthquake Ms=6.5. The results also showed that there were two problems needed to be resolved before forecasting earthquake by satellite thermal infrared techniques. They were temporal continuous of data and quantity relation of abnormal thermal infrared temperature and the earthquake.

关 键 词：热红外增温 遥感 图象处理 反演 地震 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置] P407[自动化与计算机技术—控制科学与工程]