Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR020809 |
Effects of episodic rainfall on a subterranean estuary | |
Yu, Xiayang1; Xin, Pei1; Lu, Chunhui1; Robinson, Clare2; Li, Ling3; Barry, D. A.4 | |
2017-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Canada; Australia; Switzerland |
英文摘要 | Numerical simulations were conducted to examine the effect of episodic rainfall on nearshore groundwater dynamics in a tidally influenced unconfined coastal aquifer, with a focus on both long-term (yearly) and short-term (daily) behavior of submarine groundwater discharge (SGD) and seawater intrusion (SWI). The results showed nonlinear interactions among the processes driven by rainfall, tides, and density gradients. Rainfall-induced infiltration increased the yearly averaged fresh groundwater discharge to the ocean but reduced the extents of the saltwater wedge and upper saline plume as well as the total rate of seawater circulation through both zones. Overall, the net effect of the interactions led to an increase of the SGD. The nearshore groundwater responded to individual rainfall events in a delayed and cumulative fashion, as evident in the variations of daily averaged SGD and salt stored in the saltwater wedge (quantifying the extent of SWI). A generalized linear model (GLM) along with a Gamma distribution function was developed to describe the delayed and prolonged effect of rainfall events on short-term groundwater behavior. This model validated with results of daily averaged SGD and SWI from the simulations of groundwater and solute transport using independent rainfall data sets, performed well in predicting the behavior of the near-shore groundwater system under the combined influence of episodic rainfall, tides, and density gradients. The findings and developed GLM form a basis for evaluating and predicting SGD, SWI, and associated mass fluxes from unconfined coastal aquifers under natural conditions, including episodic rainfall. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407895000033 |
WOS关键词 | SUBMARINE GROUNDWATER DISCHARGE ; WATER-TABLE FLUCTUATIONS ; SEA-LEVEL RISE ; COASTAL AQUIFER ; FRESH-WATER ; SOLUTE TRANSPORT ; SEAWATER INTRUSION ; BEACH AQUIFERS ; POROUS-MEDIA ; SPRING-NEAP |
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/20462 |
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.Western Univ, Dept Civil & Environm Engn, London, ON, Canada; 3.Univ Queensland, Sch Civil Engn, Brisbane, Qld, Australia; 4.Ecole Polytech Fed Lausanne, Fac Environm Nat Architectural & Construit ENAC, IIE, Lab Technol Ecol ECOL, Lausanne, Switzerland |
推荐引用方式 GB/T 7714 | Yu, Xiayang,Xin, Pei,Lu, Chunhui,et al. Effects of episodic rainfall on a subterranean estuary[J]. WATER RESOURCES RESEARCH,2017,53(7). |
APA | Yu, Xiayang,Xin, Pei,Lu, Chunhui,Robinson, Clare,Li, Ling,&Barry, D. A..(2017).Effects of episodic rainfall on a subterranean estuary.WATER RESOURCES RESEARCH,53(7). |
MLA | Yu, Xiayang,et al."Effects of episodic rainfall on a subterranean estuary".WATER RESOURCES RESEARCH 53.7(2017). |
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