Regression analysis for anomalous changes of ground water level due to earthquakes
Regression analysis for anomalous changes of ground water level due to earthquakes
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DOI：
10.1029/92gl01042
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发表时间：
1992-06
影响因子：
5.2
通讯作者：
N. Matsumoto
中科院分区：
文献类型：
--
作者：
N. Matsumoto
本文应用多元回归分析方法探测地震引起的地下水位异常变化。修正水位是根据最小AIC（赤池信息准则）程序获得的模型，通过从观测水位中消除气压、固体潮和降水的响应来计算的。本文用这种方法分析了日本中部静冈的海原井1981年2月至1990年12月的观测资料。结果表明，15次地震后，校正水位每次下降超过1cm。
A multiple regression analysis method is applied to detect anomalous changes of ground water level due to earthquakes. Corrected water level is calculated by eliminating responses due to barometric pressure, earth tide and precipitation from the observed water level based on a model obtained by the minimum AIC (Akaike Information Criterion) procedure. The data observed at Haibara well, Shizuoka, central Japan during the period from Feb. 1981 to Dec. 1990 is analyzed using this method. It is shown that the corrected water level decreases more than 1 cm after each of fifteen earthquakes.