| 浅水分潮对海岸潮致地下水波动特征的影响 |
| |
| 引用本文： | 楼悦安,宋志尧,孔俊,程晨,徐福敏.浅水分潮对海岸潮致地下水波动特征的影响[J].海洋工程,2013,31(6):76-83. |
| |
| 作者姓名： | 楼悦安 宋志尧 孔俊 程晨 徐福敏 |
| |
| 作者单位： | 中国人民解放军92250部队 舟山 316041;南京师范大学 虚拟地理环境教育部重点实验室和大规模复杂系统数值模拟江苏省重点实验室 南京 210023;河海大学 港口海岸与近海工程学院 南京 210098;河海大学 港口海岸与近海工程学院 南京 210098;河海大学 港口海岸与近海工程学院 南京 210098 |
| |
| 基金项目： | 国家自然科学基金资助项目(51009059)；江苏省普通高校自然科学研究重大项目(09KJA170003) |
| |
| 摘 要： | 基于一维Boussinesq方程,在斜坡海岸边界条件中考虑了半日潮及其浅水分潮的综合作用,应用摄动法得到了方程的二阶解。通过与现场实测资料和数值解的比较,分析了浅水分潮对海岸潮致地下水波动特征的影响。分析结果显示,考虑浅水分潮后,方程数值解能较好地反映实测的潮致地下水波动基本特征;方程各阶摄动解虽与现场实测数据有一定误差,但基本上能反映其波动的趋势性特征。研究结果表明,浅水分潮对海岸潮致地下水波动振幅及其超高值的影响比较显著,也能较好地改善相位上的偏移,因此在对海岸潮致地下水波动特征进行研究分析时,应该考虑浅水分潮的作用。
|
| 关 键 词： | 海岸潜水层 浅水分潮 摄动解 超高 现场观测 |
On the influence of shallow water constituent on tide-induced groundwater fluctuations in coastal area |
| |
| LOU Yue-an,SONG Zhi-yao,KONG Jun,CHENG Chen and XU Fu-min.On the influence of shallow water constituent on tide-induced groundwater fluctuations in coastal area[J].Ocean Engineering,2013,31(6):76-83. |
| |
| Authors: | LOU Yue-an SONG Zhi-yao KONG Jun CHENG Chen and XU Fu-min |
| |
| Abstract: | Based on the one-dimensional Boussinesq equation, and considering the comprehensive effect of semidiurnal tide and shallow water constituent under the boundary condition of sloping beaches, the second-order perturbation solution is derived. By analysing the influence of shallow water constituent on tide-induced groundwater fluctuations, field data and numerical resullts are compared. The results show that after considering shallow water constituent, the numerical solutions can better reflect the basic characteristics of measured tide-induced groundwater fluctuations;and each order perturbation solution has certain disagreeable values with the field data, but basically reflects the trend characteristics of the fluctuations. The results indicate that the shallow water constituent has significant effects on the amplitude and over height of tide induced groundwater fluctuations, which can also better improve the phase shift. Therefore, when studying the tide induced groundwater fluctuations in coastal area, the effect of shallow water constituent should be considered. |
| |
| Keywords: | coastal aquifer shallow water constituent perturbation solution over-height field observation |
|
| 点击此处可从《海洋工程》浏览原始摘要信息 |
| 点击此处可从《海洋工程》下载免费的PDF全文 |
|
