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Climate-driven variability in the context of the water-energy nexus: a case study in southern Portugal

2021-10Journal article Restricted access
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dc.contributor.authorC. Neves, Maria
dc.contributor.authorMalmgren, Katherine
dc.contributor.authorNeves, Rui
dc.date.accessioned2022-07-25T11:37:53Z
dc.date.available2022-07-25T11:37:53Z
dc.date.issued2021-10
dc.description.abstractResearch on climate-driven variability in the water and energy sectors is required to drive adaptative policies to climate change and boost cross-sectorial synergies. This study addresses the role of the North Atlantic Oscillation (NAO) and East Atlantic pattern (EA) on the water-energy nexus in southern Portugal (Algarve region) from the point of view of water demand, instead of the usual point of view of hydropower production. Water at surface reservoirs and aquifers and solar and wind energy potentials (SP and WP, respectively) do not share the same dominant variability scales, but their interrelationships have implications for leveraging the use of renewable energy in the water sector, particularly through water pumping efficiency gains. Water availability is dominated by interannual fluctuations (70% of the total variance), whereas SP and WP are characterized by seasonal variability scales (98% and 41% of the total variance, respectively). At interannual scales NAO is the main driver of low-frequency variability governing cycles in the 6-8 -year band, whereas fluctuations in the 2-4 -year band are mainly associated with EA. Coupling or synchronizations between opposite phases of NAO and EA correspond to extremes in water availability. Minimum water levels in the summer and during droughts, corresponding to maximum energy demand in the water sector, are clearly connected to synchronized positive NAO and negative EA phases in the preceding winter. Recent advances in the seasonal and long-term predictability of NAO and EA climate patterns can help to improve drought resilience and groundwater sustainability and have huge potential benefits for the water-energy nexus in the Algarve region. Finally, to decarbonize freshwater supply in the Algarve, policy instruments will need to account for unregulated pumping which enables conditions for groundwater depletion, encourage energy and water management integration, and explore innovative energy investments.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.jclepro.2021.128828pt_PT
dc.identifier.eissn1879-1786
dc.identifier.urihttp://hdl.handle.net/10400.1/18085
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationInstituto Dom Luiz
dc.subjectWaterpt_PT
dc.subjectWind energypt_PT
dc.subjectSolar energypt_PT
dc.subjectNAOpt_PT
dc.subjectEApt_PT
dc.subjectAlgarvept_PT
dc.titleClimate-driven variability in the context of the water-energy nexus: a case study in southern Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstituto Dom Luiz
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50019%2F2020/PT
oaire.citation.startPage128828pt_PT
oaire.citation.titleJournal of Cleaner Productionpt_PT
oaire.citation.volume320pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameNeves
person.familyNameMalmgren
person.familyNameNeves
person.givenNameMaria C.
person.givenNameKatherine
person.givenNameRui
person.identifier.ciencia-idF016-4214-4A45
person.identifier.ciencia-idEE10-FE84-F1E9
person.identifier.ciencia-idFB1D-A472-0120
person.identifier.orcid0000-0001-5726-3467
person.identifier.orcid0000-0002-2239-6363
person.identifier.orcid0000-0003-1640-4854
person.identifier.ridA-7703-2013
person.identifier.ridA-3789-2012
person.identifier.scopus-author-id7103415176
person.identifier.scopus-author-id7006779895
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5aa08a50-0e64-4d5d-acd6-d817b92e74c5
relation.isAuthorOfPublication15f41dfb-9a70-4193-b552-0f78fdbf3ef0
relation.isAuthorOfPublication2c964976-70a0-4a9e-b301-a92917adea72
relation.isAuthorOfPublication.latestForDiscovery5aa08a50-0e64-4d5d-acd6-d817b92e74c5
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