新疆石河子、巴楚震前数字化形变短临异常  

The short-term anomalies of digital deformation observations before the Shihezi and Bachu earthquakes in Xinjiang Region

作　　者：张晶[1] 牛安福[1] 高福旺[1] 吉平[1] 

机构地区：[1]中国地震局分析预报中心,北京100036

出　　处：《地震》2004年第1期82-87,共6页Earthquake

基　　金：地震科学联合基金项目(103077)

摘　　要：以固体潮汐理论为基础,讨论了提取各种潮汐、非潮汐参量的计算方法,并依据新疆地区数字化形变观测资料分析了石河子、巴楚震前的短临异常信息。初步获得了各台项异常判别的阈值及该地区近期强震前的短临异常图像。Based on the tidal theory, this paper discussed the method to calculate the tidal and non-tidal parameters, and analyzed the short-term anomaly characteristics before the Shihezi and Bachu earthquakes using the observed digital deformation data in Xinjiang region. Finally, we have preliminary obtained the threshold value for determining the anomalies and short-term anomaly images before strong earthquakes.

关 键 词：数字化 形变观测 短临异常 地震 固体潮 

分 类 号：P315.725[天文地球—地震学]