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dc.contributor.authorLin, Peigen  Concept link
dc.contributor.authorPickart, Robert S.  Concept link
dc.contributor.authorStafford, Kathleen M.  Concept link
dc.contributor.authorMoore, G. W. K.  Concept link
dc.contributor.authorTorres, Daniel J.  Concept link
dc.contributor.authorBahr, Frank  Concept link
dc.contributor.authorHu, Jianyu  Concept link
dc.date.accessioned2017-03-20T17:24:14Z
dc.date.issued2016-12-02
dc.identifier.citationJournal of Geophysical Research: Oceans 121 (2016): 8434–8454en_US
dc.identifier.urihttp://hdl.handle.net/1912/8809
dc.descriptionAuthor Posting. © American Geophysical Union, 2016. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 121 (2016): 8434–8454, doi:10.1002/2016JC011890.en_US
dc.description.abstractUsing mooring time series from September 2008 to August 2012, together with ancillary atmospheric and satellite data sets, we quantify the seasonal variations of the shelfbreak jet in the Alaskan Beaufort Sea and explore connections to the occurrences of bowhead and beluga whales. Wind patterns during the 4 year study period are different from the long-term climatological conditions that the springtime peak in easterly winds shifted from May to June and the autumn peak was limited to October instead of extending farther into the fall. These changes were primarily due to the behavior of the two regional atmospheric centers of action, the Aleutian Low and Beaufort High. The volume transport of the shelfbreak jet, which peaks in the summer, was decomposed into a background (weak wind) component and a wind-driven component. The wind-driven component is correlated to the Pt. Barrow, AK alongcoast wind speed record although a more accurate prediction is obtained when considering the ice thickness at the mooring site. An upwelling index reveals that wind-driven upwelling is enhanced in June and October when storms are stronger and longer-lasting. The seasonal variation of Arctic cetacean occurrence is dominated by the eastward migration in spring, dictated by pack-ice patterns, and westward migration in fall, coincident with the autumn peak in shelfbreak upwelling intensity.en_US
dc.description.sponsorshipSupport for the most recent deployments of the shelfbreak moorings was provided by grants ARC-0856244 and ARC-855828 from the Office of Polar Programs of the National Science Foundation. P.L. acknowledges the financial support of the China Scholarship Council.en_US
dc.language.isoen_USen_US
dc.publisherJohn Wiley & Sonsen_US
dc.relation.urihttps://doi.org/10.1002/2016JC011890
dc.subjectBeaufort shelfbreak jeten_US
dc.subjectWind-driven transporten_US
dc.subjectWater massesen_US
dc.subjectUpwellingen_US
dc.subjectCetaceansen_US
dc.titleSeasonal variation of the Beaufort shelfbreak jet and its relationship to Arctic cetacean occurrenceen_US
dc.typeArticleen_US
dc.description.embargo2017-06-02en_US
dc.identifier.doi10.1002/2016JC011890
dc.embargo.liftdate2017-06-02


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