Variability of Warm Deep Water Inflow in a Submarine Trough on the Amundsen Sea Shelf SCIE SCOPUS

DC Field Value Language
dc.contributor.author Wahlin, A. K. -
dc.contributor.author Kalen, O. -
dc.contributor.author Arneborg, L. -
dc.contributor.author Bjoerk, G. -
dc.contributor.author Carvajal, G. K. -
dc.contributor.author Ha, H. K. -
dc.contributor.author Kim, T. W. -
dc.contributor.author Lee, S. H. -
dc.contributor.author Lee, J. H. -
dc.contributor.author Stranne, C. -
dc.date.accessioned 2020-04-20T05:25:35Z -
dc.date.available 2020-04-20T05:25:35Z -
dc.date.created 2020-01-28 -
dc.date.issued 2013-10 -
dc.identifier.issn 0022-3670 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/3090 -
dc.description.abstract The ice shelves in the Amundsen Sea are thinning rapidly, and the main reason for their decline appears to be warm ocean currents circulating below the ice shelves and melting these from below. Ocean currents transport warm dense water onto the shelf, channeled by bathymetric troughs leading to the deep inner basins. A hydrographic mooring equipped with an upward-looking ADCP has been placed in one of these troughs on the central Amundsen shelf. The two years (2010/11) of mooring data are here used to characterize the inflow of warm deep water to the deep shelf basins. During both years, the warm layer thickness and temperature peaked in austral fall. The along-trough velocity is dominated by strong fluctuations that do not vary in the vertical. These fluctuations are correlated with the local wind, with eastward wind over the shelf and shelf break giving flow toward the ice shelves. In addition, there is a persistent flow of dense lower Circumpolar Deep Water (CDW) toward the ice shelves in the bottom layer. This bottom-intensified flow appears to be driven by buoyancy forces rather than the shelfbreak wind. The years of 2010 and 2011 were characterized by a comparatively stationary Amundsen Sea low, and hence there were no strong eastward winds during winter that could drive an upwelling of warm water along the shelf break. Regardless of this, there was a persistent flow of lower CDW in the bottom layer during the two years. The average heat transport toward the ice shelves in the trough was estimated from the mooring data to be 0.95 TW. -
dc.description.uri 1 -
dc.language English -
dc.publisher AMER METEOROLOGICAL SOC -
dc.title Variability of Warm Deep Water Inflow in a Submarine Trough on the Amundsen Sea Shelf -
dc.type Article -
dc.citation.endPage 2070 -
dc.citation.startPage 2054 -
dc.citation.title JOURNAL OF PHYSICAL OCEANOGRAPHY -
dc.citation.volume 43 -
dc.citation.number 10 -
dc.contributor.alternativeName 이재학 -
dc.identifier.bibliographicCitation JOURNAL OF PHYSICAL OCEANOGRAPHY, v.43, no.10, pp.2054 - 2070 -
dc.identifier.doi 10.1175/JPO-D-12-0157.1 -
dc.identifier.scopusid 2-s2.0-84884778423 -
dc.identifier.wosid 000325534400002 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus PENINSULA CONTINENTAL-SHELF -
dc.subject.keywordPlus PINE ISLAND GLACIER -
dc.subject.keywordPlus ANTARCTIC ICE-SHEET -
dc.subject.keywordPlus WEST ANTARCTICA -
dc.subject.keywordPlus CIRCULATION -
dc.subject.keywordPlus EXCHANGE -
dc.subject.keywordPlus SYSTEM -
dc.subject.keywordPlus OCEAN -
dc.subject.keywordPlus MODEL -
dc.subject.keywordAuthor Southern Ocean -
dc.subject.keywordAuthor Ekman pumping -
dc.subject.keywordAuthor transport -
dc.subject.keywordAuthor Seasonal variability -
dc.relation.journalWebOfScienceCategory Oceanography -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Oceanography -
Appears in Collections:
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse