DOI: 10.1002/2014GL059617
论文题名: Memory of past random wave conditions in submarine groundwater discharge
作者: Xin P. ; Wang S.S.J. ; Robinson C. ; Li L. ; Wang Y.-G. ; Barry D.A.
刊名: Geophysical Research Letters
ISSN: 0094-10174
EISSN: 1944-9905
出版年: 2014
卷: 41, 期: 7 起始页码: 2401
结束页码: 2410
语种: 英语
英文关键词: coastal aquifer
; nearshore processes
; storm surge
; subterranean estuary
; surface water and groundwater interaction
; wave setup
Scopus关键词: Aquifers
; Coastal engineering
; Discharge (fluid mechanics)
; Floods
; Hydrogeology
; Probability distributions
; Regression analysis
; Seawater effects
; Storms
; Coastal aquifers
; Nearshore process
; Storm surges
; Subterranean estuary
; Surface water and groundwaters
; Wave set-up
; Groundwater resources
; coastal aquifer
; data set
; discharge
; estuarine dynamics
; groundwater flow
; groundwater-surface water interaction
; nearshore environment
; numerical model
; seawater
; storm surge
; wave setup
英文摘要: Submarine groundwater discharge (SGD) is an integral part of the hydrological cycle and represents an important aspect of land-ocean interactions. We used a numerical model to simulate flow and salt transport in a nearshore groundwater aquifer under varying wave conditions based on yearlong random wave data sets, including storm surge events the results showed significant flow asymmetry with rapid response of influxes and retarded response of effluxes across the seabed to the irregular wave conditions. While a storm surge immediately intensified seawater influx to the aquifer, the subsequent return of intruded seawater to the sea, as part of an increased SGD, was gradual. Using functional data analysis, we revealed and quantified retarded, cumulative effects of past wave conditions on SGD including the fresh groundwater and recirculating seawater discharge components the retardation was characterized well by a gamma distribution function regardless of wave conditions the relationships between discharge rates and wave parameters were quantifiable by a regression model in a functional form independent of the actual irregular wave conditions. This statistical model provides a useful method for analyzing and predicting SGD from nearshore unconfined aquifers affected by random waves. Key Points Cumulative effects of antecedent wave conditions on SGD Long memory of past wave conditions back to over a hundred days found in the SGD Wave effects characterized well by a gamma distribution function © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897355778&doi=10.1002%2f2014GL059617&partnerID=40&md5=166e4afcb0054068ef4157fe0fe1ecd6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7438
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Hydrology, Water Resources and Hydraulic Engineering, Hohai University, Nanjing, China
Recommended Citation:
Xin P.,Wang S.S.J.,Robinson C.,et al. Memory of past random wave conditions in submarine groundwater discharge[J]. Geophysical Research Letters,2014-01-01,41(7).