Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023114 |
Defining the Effect of Stratification in Coastal Aquifers Using a New Parameter | |
Rathore, Saubhagya Singh1; Zhao, Yue1; Lu, Chunhui2; Luo, Jian1 | |
2018-09-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:9页码:5948-5957 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | This study, building on the comprehensive discharge potential theory presented by Strack and Ausk (2015) https://doi.org/10.1002/2015WR016887, discovered that the effects of layer arrangements on steady state seawater intrusion and groundwater discharge in stratified confined coastal aquifers can be approximated via transmissivity centroid elevation (TCE), defined as the summation of the product of the transmissivity and elevation (above the aquifer base) of each layer divided by the total aquifer transmissivity. Specifically, a higher TCE in aquifers with high transmissivity layers at high elevations results in a more landward interface-toe position in both flux- and head-controlled coastal aquifer systems, as well as a higher freshwater discharge rate in head-controlled systems. Furthermore, the toe position in head-controlled stratified systems is only a function of the TCE and independent of the total transmissivity. Therefore, we can estimate the upper limit of seawater intrusion, that is, the furthest inland toe position, in stratified aquifers by letting the TCE equal to the elevation of the aquifer top. Another important implication of our results is that the interface toe position in coastal aquifers containing a preferential flow layer is controlled by the elevation of the preferential flow layer. Additionally, effective parameters and homogenization of the interface flow in stratified aquifers were developed to approximate the toe position and discharge rate. The results developed in this study provide significant advances in understanding the effect of aquifer stratification on groundwater flow and seawater intrusion in coastal aquifers. |
英文关键词 | seawater intrusion stratified aquifers analytical solution heterogeneous media effective parameters |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448088100006 |
WOS关键词 | SALT-WATER INTERFACE ; SEAWATER INTRUSION ; GROUNDWATER-FLOW |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21166 |
专题 | 资源环境科学 |
作者单位 | 1.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA; 2.Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Rathore, Saubhagya Singh,Zhao, Yue,Lu, Chunhui,et al. Defining the Effect of Stratification in Coastal Aquifers Using a New Parameter[J]. WATER RESOURCES RESEARCH,2018,54(9):5948-5957. |
APA | Rathore, Saubhagya Singh,Zhao, Yue,Lu, Chunhui,&Luo, Jian.(2018).Defining the Effect of Stratification in Coastal Aquifers Using a New Parameter.WATER RESOURCES RESEARCH,54(9),5948-5957. |
MLA | Rathore, Saubhagya Singh,et al."Defining the Effect of Stratification in Coastal Aquifers Using a New Parameter".WATER RESOURCES RESEARCH 54.9(2018):5948-5957. |
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