长江口以东海域6.1级地震前巢湖地下水位前兆异常

1996年 1 1月 9日长江口以东海域发生 MS6.1地震 ,震前巢湖地下水动态观测网中 3口深水井所记录到的水位经标准差、剩余值数据处理得到前兆异常。其异常时间以中短期为主 ,不同步。本文还对如何提高地震预报的准确性及降水对井水位的影响等问题进行了讨论。

Anomaly of ground water level before eastern sea area of Yangtze River mouth earthquake with M_S6.1

It is found water level precursor anomaly by standard deviation and remain value data precessing method in three deep well of Chaohu undergrourd water dynamic observation network before M S 6 1 earthquake on November 9,1996,in eastern sea area of Yangtze River mouth.The majority precursors are middle term and short termones,not synchronization.In this paper we also discussed how to improve the accuracy of earthquake prediction and the rain affection on water level.Key words:ground water level,data processing,Yangtze River mouth earthquakelogical transitional zones and climate transitional zones are defined in a quantitative way, which responds to those by ecological and climate divisions in the past plant ecological and climatic studies. The results verify the reasonability of the existed divisions of ecological and climate zones in East China. This study also shows its ability to analyze the large scale features of plant ecology in quantitative ways, especially under the strong support of satellite remote sensing.