地震前兆观测－地下水水位分析III-气象局.PDF

(III) Earthquake Precursor Observation Analysis of the Ground Water-level Fluctuations (III) 1 2 1 2識 (六 ) 來降 料錄 累降量 來更 降量 年錄年降度 錄降 錄降 錄降 降 10 利 來 來累 料 降 更 異 Four water wells, SinPu, LiuJar, NaBa and DonHer, were used to analyze the relationship between groundwater-level change, rainfall, and atmospheric pressure. The monthly fluctuation of water-level shows seasonal change for only the station DonHer; the rest is not correlated with seasonal change. For all water wells, the atmospheric pressure exhibits good relation with season. Regions, where the stations LiuJar, NaBa and DonHer are located on, have dry season for about 6 months. On the whole, the groundwater level is declined gradually year by year. This might be related to the great deal of usage of groundwater level. From this study, we suggest that the station DonHer is more suitable for the analysis of the groundwater level by using traditional method than other water wells. In the future, we make attempt to develop new methods for processing the groundwater-level data in the Taiwan area. 241 異 異 來臨 參 兩類異 異 來降 量 力 錄 降量 錄降 降 降量 ( 1986 Yu and Mitchell, 1988) 更 異 來 聯 若 錄 律 (multiple regression)(Matsumoto, 1992) 數 數數 料 料 六 (LiuJar) (NaBa) (DonHer)(SinPu)(見 ) 料 六 2003/01 2004/10 2003/01 2004/10 2003/01 2004/05 2002/05 2004/05 北 六 GPS 數量 錄 度 130 250 易 錄 參降量