Multi-objective optimal design of interbasin water transfers: The Tagus-Segura aqueduct (Spain)

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dc.contributor.authorValerio, Carlotta
dc.contributor.authorGiuliani, Matteo
dc.contributor.authorCastelletti, Andrea
dc.contributor.authorGarrido, Alberto
dc.contributor.authorDe Stefano, Lucia
dc.date.accessioned2023-06-22T12:43:27Z
dc.date.available2023-06-22T12:43:27Z
dc.date.issued2023-04
dc.description.abstractStudy region The Tagus-Segura aqueduct (TSA) is a large and strategic water transfer scheme in Spain that connects Entrepeñas and Buendía reservoirs in the Tagus river headwaters to the Segura river basin, a highly stressed Mediterranean area. Study focus The operating rules of the TSA underwent several modifications over the years, and the debate about which are the optimal parameters to meet the interests of the parties involved is still open. We employed Evolutionary Multi-Objective Direct Policy Search to jointly optimize the re-operation of the headwaters dams and the water transfer policy with respect to four conflicting objectives: Tagus and Segura water demands, hydropower production and socioeconomic benefit of the population living on the shores of the headwaters reservoirs. We tested the optimization under the baseline and the 2027 scenario, which foresees an increased environmental flow (EF) in the Tagus river. New hydrological insights for the region The proposed operating rule presents optimized control parameters, a higher degree of freedom and a transferred volume that cyclically varies according to the hydrological stage of the year. In the 2027 scenario, despite the increased EF, the deficit in the aqueduct shows a limited increase compared to the historical solution (+10%), while the storage deficit is strongly reduced (−73%). This benefits the population living on the reservoirs shores and also ensures more stability to the aqueduct functioning.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipBotín Foundation
dc.description.sponsorshipFundación Tatiana Pérez de Guzmán El Bueno
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.sponsorshipUniversidad Politécnica de Madrid
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/77062
dc.identifier.doi10.1016/j.ejrh.2023.101339
dc.identifier.issn2214-5818
dc.identifier.officialurlhttps://doi.org/10.1016/j.ejrh.2023.101339
dc.identifier.urihttps://hdl.handle.net/20.500.14352/73097
dc.issue.number101339
dc.journal.titleJournal of Hydrology Regional Studies
dc.language.isoeng
dc.publisherElsevier
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.cdu556(460)
dc.subject.keywordInterbasin water transfer
dc.subject.keywordTagus-Segura aqueduct
dc.subject.keywordMulti-objective evolutionary optimization
dc.subject.keywordDirect policy search
dc.subject.keywordEnvironmental flow
dc.subject.ucmHidrología
dc.subject.unesco2508 Hidrología
dc.titleMulti-objective optimal design of interbasin water transfers: The Tagus-Segura aqueduct (Spain)
dc.typejournal article
dc.volume.number46
dspace.entity.typePublication
relation.isAuthorOfPublicationa43fd8af-98e8-473a-b8a3-4e9b3f5c6f04
relation.isAuthorOfPublicationda039dd9-9f87-4f53-9942-45a730d1a4fe
relation.isAuthorOfPublication.latestForDiscoverya43fd8af-98e8-473a-b8a3-4e9b3f5c6f04
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