Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR024529 |
A Proof-of-Concept Study of Using a Less Permeable Slice Along the Shoreline to Increase Fresh Groundwater Storage of Oceanic Islands: Analytical and Experimental Validation | |
Lu, Chunhui1; Cao, Hongfan1; Ma, Jing1; Shi, Wenlong1; Rathore, Saubhagya Singh2; Wu, Jichun3; Luo, Jian2 | |
2019-08-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:8页码:6450-6463 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | We propose a new concept that has the potential to mitigate seawater intrusion and increase the fresh groundwater storage of oceanic islands by creating a less permeable slice along the shoreline. We present a proof-of-concept study to examine its effectiveness through analytical and experimental studies. Analytical expressions for calculating the freshwater-seawater interface location, water table elevation, fresh groundwater volume, and groundwater travel time are presented for both barrier and circular islands, which are found dependent on three different scenarios of interface locations. The analytical solution of the interface location in a barrier island is verified through sand-tank experiments. Sensitivity analyses based on a simplified conceptual model of St. George Island in Florida, USA, indicate that the fresh groundwater volume monotonically increases with the decrease in the hydraulic conductivity of the coastal less permeable hydrogeologic unit. On the other hand, the increase of the coastal less permeable unit extent leads to an increased fresh groundwater volume. However, when the interface tip is on the aquifer bed of the coastal less permeable unit, a further increase of the less permeable unit extent only slightly increases the fresh groundwater volume, since the interface does not change any more and only the water table is elevated. We demonstrate here that the concept proposed has the potential in increasing the fresh groundwater storage of oceanic islands. Analytical expressions presented can improve our understanding of seawater intrusion in a dual-unit oceanic island. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490973700006 |
WOS关键词 | WATER LENSES ; SEAWATER INTRUSION ; SALTWATER INTRUSION ; AGE-STRATIFICATION ; COASTAL AQUIFER ; TRAVEL-TIMES ; FLOW ; EXTRACTION ; MANAGEMENT ; INJECTION |
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/185846 |
专题 | 资源环境科学 |
作者单位 | 1.Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing, Jiangsu, Peoples R China; 2.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA; 3.Nanjing Univ, Sch Earth Sci & Engn, Key Lab Surficial Geochem, Minist Educ,Dept Hydrosci, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Lu, Chunhui,Cao, Hongfan,Ma, Jing,et al. A Proof-of-Concept Study of Using a Less Permeable Slice Along the Shoreline to Increase Fresh Groundwater Storage of Oceanic Islands: Analytical and Experimental Validation[J]. WATER RESOURCES RESEARCH,2019,55(8):6450-6463. |
APA | Lu, Chunhui.,Cao, Hongfan.,Ma, Jing.,Shi, Wenlong.,Rathore, Saubhagya Singh.,...&Luo, Jian.(2019).A Proof-of-Concept Study of Using a Less Permeable Slice Along the Shoreline to Increase Fresh Groundwater Storage of Oceanic Islands: Analytical and Experimental Validation.WATER RESOURCES RESEARCH,55(8),6450-6463. |
MLA | Lu, Chunhui,et al."A Proof-of-Concept Study of Using a Less Permeable Slice Along the Shoreline to Increase Fresh Groundwater Storage of Oceanic Islands: Analytical and Experimental Validation".WATER RESOURCES RESEARCH 55.8(2019):6450-6463. |
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