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dc.contributor.authorBrugler, Eric T.  Concept link
dc.coverage.spatialBeaufort Sea
dc.coverage.spatial152°W
dc.date.accessioned2013-08-19T18:33:10Z
dc.date.available2013-08-19T18:33:10Z
dc.date.issued2013-09
dc.identifier.urihttps://hdl.handle.net/1912/6158
dc.descriptionSubmitted in partial fulfillment of the requirements for the degree of Master of Science at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 2013en_US
dc.description.abstractBetween 2002 and 2011 a single mooring was maintained in the core of the Pacific Water boundary current in the Alaskan Beaufort Sea near 152° W. Using velocity and hydrographic data from six year-long deployments during this time period, we examine the interannual variability of the current. It is found that the volume, heat, and freshwater transport have all decreased drastically over the decade, by more than 80%. The most striking changes have occurred during the summer months. Using a combination of weather station data, atmospheric reanalysis fields, and concurrent shipboard and mooring data from the Chukchi Sea, we investigate the physical drivers responsible for these changes. It is demonstrated that an increase in summertime easterly winds along the Beaufort slope is the primary reason for the drop in transport. The intensification of the local winds has in turn been driven by a strengthening of the summer Beaufort High in conjunction with a deepening of the summer Aleutian Low. Since the fluxes of mass, heat, and freshwater through Bering Strait have increased over the same time period, this raises the question as to the fate of the Pacific water during recent years and its impacts. We present evidence that more heat has been fluxed directly into the interior basin from Barrow Canyon rather than entering the Beaufort shelfbreak jet, and this is responsible for a significant portion of the increased ice melt in the Pacific sector of the Arctic Ocean.en_US
dc.description.sponsorshipThe majority of the data for this project was funded by grant # ARC-0856244 from the O ce of Polar Programs of the National Science Foundation. My time at WHOI was funded by the United States Navy, the National Science Foundation Graduate Research Fellowship Program and the WHOI Academic Programs O ffice.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherMassachusetts Institute of Technology and Woods Hole Oceanographic Institutionen_US
dc.relation.ispartofseriesWHOI Thesesen_US
dc.subjectOcean circulationen_US
dc.subjectOcean-atmosphere interactionen_US
dc.titleInterannual variability of the Pacific Water boundary current in the Beaufort Seaen_US
dc.typeThesisen_US
dc.identifier.doi10.1575/1912/6158


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