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dc.contributor.authorClose, Sally
dc.contributor.authorNaveira Garabato, Alberto
dc.contributor.authorMcDonagh, Elaine
dc.contributor.authorKing, Brian
dc.contributor.authorBiuw, Martin
dc.contributor.authorBoehme, Lars
dc.identifier.citationClose , S , Naveira Garabato , A , McDonagh , E , King , B , Biuw , M & Boehme , L 2013 , ' Control of mode and intermediate water mass properties in Drake Passage by the Amundsen Sea low ' Journal of Climate , vol. 26 , no. 14 , JCLI-D-12-00346 , pp. 5102-5123 .
dc.identifier.otherPURE: 21234532
dc.identifier.otherPURE UUID: 8284f1ad-7b07-4aaf-8c6a-6af0147d165c
dc.identifier.otherScopus: 84880680909
dc.description.abstractThe evolution of the physical properties of Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) in the Drake Passage region are examined on time scales down to intraseasonal, within the 1969 - 2009 period. Both SAMW and AAIW experience substantial interannual to interdecadal variability, significantly linked to the action of the Amundsen Sea Low (ASL) in their formation areas. Observations suggest that the interdecadal freshening tendency evident in SAMW over the past three decades has recently abated, whilst AAIW has warmed significantly since the early 2000s. The two water masses have also experienced a substantial lightening since the start of the record. Examination of the mechanisms underpinning water mass property variability shows that SAMW characteristics are controlled predominantly by a combination of air-sea turbulent heat fluxes, cross-frontal Ekman transport of Antarctic surface waters and the evaporation-precipitation balance, whilst AAIW properties reflect air-sea turbulent heat fluxes and sea ice formation in the Bellingshausen Sea. The recent interdecadal evolution of the ASL is consistent with both the dominance of the processes described here and the response of SAMW and AAIW on that time scale.
dc.relation.ispartofJournal of Climateen
dc.rights© 2013 American Meteorological Society. Deposited according to publisher policy.en
dc.subjectAtmosphere-ocean interactionen
dc.subjectWater massesen
dc.subjectInterannual variabilityen
dc.subjectGC Oceanographyen
dc.titleControl of mode and intermediate water mass properties in Drake Passage by the Amundsen Sea lowen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews.Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews.Sea Mammal Research Uniten
dc.description.statusPeer revieweden

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