Stochastic optimization for an analytical model of saltwater intrusion in coastal aquifersStochastic optimization for an analytical model of saltwater intrusion in coastal aquifers Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2018-10-032016enThe present study implements a stochastic optimization technique to optimally manage freshwater pumping from coastal aquifers. Our simulations utilize the well-known sharp interface model for saltwater intrusion in coastal aquifers together with its known analytical solution. The objective is to maximize the total volume of freshwater pumped by the wells from the aquifer while, at the same time, protecting the aquifer from saltwater intrusion. In the direction of dealing with this problem in real time, the ALOPEX stochastic optimization method is used, to optimize the pumping rates of the wells, coupled with a penalty-based strategy that keeps the saltwater front at a safe distance from the wells. Several numerical optimization results, that simulate a known real aquifer case, are presented. The results explore the computational performance of the chosen stochastic optimization method as well as its abilities to manage freshwater pumping in real aquifer environments.http://creativecommons.org/licenses/by/4.0/PLoS ONE119Stratis_et_ al_Plos One_11(9)_2016.pdfChania [Greece]Library of TUC2018-10-03application/pdf3.4 MBfree Stratis Paraskevas Στρατης Παρασκευας Georgios Karatzas Καρατζας Γεωργιος Papadopoulou Eleni Παπαδοπουλου Ελενη Zakynthinaki Maria Ζακυνθινακη Μαρια Saridakis Ioannis Σαριδακης Ιωαννης Public Library of Science Stochastic optimization