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dc.contributor.authorLi, Jianqiang  Concept link
dc.contributor.authorPickart, Robert S.  Concept link
dc.contributor.authorLin, Peigen  Concept link
dc.contributor.authorBahr, Frank B.  Concept link
dc.contributor.authorArrigo, Kevin R.  Concept link
dc.contributor.authorJuranek, Laurie W.  Concept link
dc.contributor.authorYang, Xiao‐Yi  Concept link
dc.date.accessioned2020-11-30T20:11:31Z
dc.date.available2021-01-27T08:55:39Z
dc.date.issued2020-07-27
dc.identifier.citationLi, J., Pickart, R. S., Lin, P., Bahr, F., Arrigo, K. R., Juranek, L., & Yang, X. (2020). The Atlantic Water boundary current in the Chukchi Borderland and Southern Canada Basin. Journal of Geophysical Research: Oceans, 125(8), e2020JC016197.en_US
dc.identifier.urihttps://hdl.handle.net/1912/26426
dc.descriptionAuthor Posting. © American Geophysical Union, 2020. 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 125(8), (2020): e2020JC016197, doi:10.1029/2020JC016197.en_US
dc.description.abstractSynoptic shipboard measurements, together with historical hydrographic data and satellite data, are used to elucidate the detailed structure of the Atlantic Water (AW) boundary current system in the southern Canada Basin and its connection to the upstream source of AW in the Chukchi Borderland. Nine high‐resolution occupations of a transect extending from the Beaufort shelf to the deep basin near 152°W, taken between 2003 and 2018, reveal that there are two branches of the AW boundary current that flow beneath and counter to the Beaufort Gyre. Each branch corresponds to a warm temperature core and transports comparable amounts of Fram Strait Branch Water between roughly 200–700 m depth, although they are characterized by a different temperature/salinity (T/S) structure. The mean volume flux of the combined branches is 0.87 ± 0.13 Sv. Using the historical hydrographic data, the two branches are tracked upstream by their temperature cores and T/S signatures. This sheds new light on how the AW negotiates the Chukchi Borderland and why two branches emerge from this region. Lastly, the propagation of warm temperature anomalies through the region is quantified and shown to be consistent with the deduced circulation scheme.en_US
dc.description.sponsorshipThis work was funded by the following sources: National Science Foundation Grants PLR‐1504333, OPP‐1733564, and OPP‐1504394; National Oceanic and Atmospheric Administration Grant NA14OAR4320158; and National Aeronautics and Space Administration Grant NNX10AF42G.en_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.urihttps://doi.org/10.1029/2020JC016197
dc.titleThe Atlantic Water boundary current in the Chukchi Borderland and Southern Canada Basinen_US
dc.typeArticleen_US
dc.description.embargo2021-01-27en_US
dc.identifier.doi10.1029/2020JC016197


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