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| 海潮及其影响下海岸带地下水位时间序列的周期性和滞后性 | |
| 引用本文： | 周训,阮传侠,方斌,欧业成.海潮及其影响下海岸带地下水位时间序列的周期性和滞后性[J].水文地质工程地质,2006,33(5):71-74,79. |
| 作者姓名： | 周训 阮传侠 方斌 欧业成 |
| 作者单位： | 1. 中国地质大学水资源与环境学院,北京,100083 2. 中国地质大学水资源与环境学院,北京,100083;天津地热勘查开发设计院,天津,300250 3. 广西北海水文工程矿产地质勘察院,北海,536000 |
| 基金项目： | 高等学校博士学科点专项科研项目 |
| 摘 要： | 运用谱分析原理，对广西北海市海潮及受海潮影响的滨海含水层地下水位时间序列进行分析，求出海潮和观测孔水位变化的周期及地下水位滞后于海潮的时间，分析水位滞后时间与离海岸的垂直距离之间的关系。结果表明，北海市海潮和海岸带地下水位有约344．82h（14．37d）的长周期变化和约24．7h、12．5h的短周期波动，距海岸2175、2350、2375m的3个观测孔地下水位对海潮的滞后时间分别为5．5、6．25和7h，滞后时间随离海岸的距离增大大体上呈线性增加。 |
| 关 键 词： | 滨海含水层 潮汐效应 谱分析 周期 滞后 |
| 文章编号： | 1000-3665（2006）05-0071-04 |
| 收稿时间： | 2005-07-15 |
| 修稿时间： | 2005-07-152006-04-10 |
Period and lag of the time series of tide and groundwater levels affected by the tide in coastal aquifers |
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| ZHOU Xun,RUAN Chuan-xia,FANG Bin,OU Ye-cheng.Period and lag of the time series of tide and groundwater levels affected by the tide in coastal aquifers[J].Hydrogeology and Engineering Geology,2006,33(5):71-74,79. | |
| Authors: | ZHOU Xun RUAN Chuan-xia FANG Bin OU Ye-cheng |
| Institution: | 1. School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China ; 2. Institute of Tianjin Geothermal Investigation Development and Design, Tianjin 300250, China; 3. Beihai Institute of Hydrogeology, Engineering Geology and Mineral Resources in Guangxi, Beihai 536000, China |
| Abstract: | Time series of the tide and tide-induced groundwater levels in coastal aquifers in Beihai,Guangxi,are analyzed using the spectrum method.The periods of the tide and groundwater levels at the observation boreholes and the time lags of the groundwater levels to the tide are obtained.The relationship between the time lags of the groundwater levels to the tide and the distances far from the coast is also described in this paper.The results indicate that the tide and the groundwater level in the coastal aquifers in Behai fluctuate with a long period of 14.37 days and short periods of 24.7 and 12.5 hours,and the time lags of the groundwater levels at the three observation wells(2175,2350,and 2375 m far from the coast) to the tide are 5.5,6.25 and 7.0 hours,respectively.The relationship between the time lag and the distance from the coast can roughly be described using a linear function. |
| Keywords: | coastal aquifer tidal effect spectrum analysis period lag |
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