资源描述：
《Groundwater flow and salt transport in a subterranean estuary driven》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、WATERRESOURCESRESEARCH,VOL.50,1–17,doi:10.1002/2013WR013813,2014Groundwaterflowandsalttransportinasubterraneanestuarydrivenbyintensifiedwaveconditions12,32,34ClareRobinson,PeiXin,LingLi,andD.A.BarryReceived12March2013;revised29November2013;accepted2December2013.[1]Anumeri
2、calstudy,basedonadensity-dependentvariablysaturatedgroundwaterflowmodel,wasconductedtoinvestigateflowandsalttransportinanearshoreaquiferunderintensifiedwaveconditionscausedbyoffshorestorms.Temporallyvaryingonshorehydraulicgradientsduetowavesetupweredeterminedastheseawardboun
3、daryconditionforthesimulatedaquifer.Theresultsshowedarapidincreaseininfluxesacrosstheaquifer-oceaninterfaceinresponsetothewaveeventfollowedbyamoregradualincreaseineffluxes.Theuppersalineplumefirstwidenedhorizontallyasthewavesetuppointmovedlandward.Itthenexpandedverticallywit
4、hrecirculatingseawaterpusheddownwardbythewave-inducedhydraulicgradient.Thetimeforthesaltdistributiontoreturntotheprestormconditionwasuptoahundreddaysandcorrelatedstronglywiththetimeforseawatertorecirculatethroughtheaquifer.Thepathwaysofrecirculatingseawaterandfreshgroundw
5、aterwerelargelymodifiedbythewaveevent.Thesepathwayscrossedthroughthesamespatiallocationsatsimilartimes,indicatingsignificantsalt-freshwatermixing.Theflowandsalttransportdynamicsweremoreresponsivetowaveeventsoflongerdurationandhigherintensity,especiallyinmorepermeableaquifers
6、withlowerfreshgroundwaterdischarge.Despitetheirlargerresponse,aquiferswithhigherpermeabilityandbeachsloperecoveredmorerapidlypostevent.Therapidrecoveryoftheflowscomparedwiththesalinitydistributionshouldbeconsideredinfielddatainterpretation.Duetotheirlong-lastingimpact,wavee
7、ventsmaysignificantlyinfluencethegeochemicalconditionsandthefateofchemicalsinasubterraneanestuary.Citation:Robinson,C.,P.Xin,L.Li,andD.A.Barry(2014),Groundwaterflowandsalttransportinasubterraneanestuarydrivenbyintensifiedwaveconditions,WaterResour.Res.,50,doi:10.1002/2013WR
8、013813.1.Introductionthesubsurfaceflowpathsandgeochemicalconditionsintheaquifer,particularlyneart
