滇05井水位动态的震前短临异常

WATER LEVEL SHORT-IMPENDING ANOMALY IN No 05 WELL OF YUNNAN BEFORE EARTHQUAKE

本文根据滇０５井的观测情况，研究该井水位变化速率。经多元回归分析，发现该井水位变化受固体潮汐的影响是主要的。继而采用彼氏滤波方法，排除固体潮汐的影响，结果发现：滇０５井在中强地震发生前，水位动态反映出明显的短临异常。

Based on the observations from the No 05 well of Yunnan, the variation rate of water level in the well is studied in this paper. It is found through multivariate regression analysis that the variation in water level in the well is affected mainly by solid tide; however, the short-Impending anomaly before moderate-strong earthquake was obviously reflected by the water level regimen in the No 5 well of Yunnan after removing the influence of solid tide through using the filter method.