Seawater intrusion in coastal aquifers under drought and transient conditions

Kopsiaftis, G; Mantoglou, A

dc.contributor.author	Kopsiaftis, G	en
dc.contributor.author	Mantoglou, A	en
dc.date.accessioned	2014-03-01T02:52:45Z
dc.date.available	2014-03-01T02:52:45Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36040
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84860257815&partnerID=40&md5=f89b89c8987a89753a2d4d994022f5af	en
dc.subject.other	Coastal aquifers	en
dc.subject.other	Optimal pumping	en
dc.subject.other	Rainfall measurements	en
dc.subject.other	Recharge rates	en
dc.subject.other	Rectangular shapes	en
dc.subject.other	Steady conditions	en
dc.subject.other	Transient conditions	en
dc.subject.other	Unconfined aquifers	en
dc.subject.other	Variable density	en
dc.subject.other	Drought	en
dc.subject.other	Groundwater geochemistry	en
dc.subject.other	Hydraulics	en
dc.subject.other	Hydrogeology	en
dc.subject.other	Optimization	en
dc.subject.other	Salt water intrusion	en
dc.subject.other	Seawater	en
dc.subject.other	Three dimensional	en
dc.subject.other	Aquifers	en
dc.title	Seawater intrusion in coastal aquifers under drought and transient conditions	en
heal.type	conferenceItem	en
heal.publicationDate	2010	en
heal.abstract	Seawater intrusion in coastal aquifers is investigated under transient conditions and the results are compared to steady-state results. A three-dimensional variable density model is developed and applied on an unconfined aquifer of relatively small rectangular shape. Pumping optimization is initially performed under steady conditions for obtaining optimal pumping rates. Several drought scenarios with a 10% reduction on the annual recharge rate are examined indicating a quick nonlinear decrease of sustainable freshwater as a function of recharge. Next, a monthly based variable density model is developed by distributing the annual recharge into twelve stress periods. A reference scenario based on real rainfall measurements is investigated and the results are then compared to two additional scenarios with different monthly recharge distributions. All three transient scenarios indicate an advancement of seawater wedge compared to the steady-state results, which should be taken into consideration in coastal aquifer management plans. © 2010 Taylor & Francis Group, London.	en
heal.journalName	Environmental Hydraulics - Proceedings of the 6th International Symposium on Environmental Hydraulics	en
dc.identifier.volume	2	en
dc.identifier.spage	637	en
dc.identifier.epage	642	en