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Atlantic water circulation and properties northwest of Svalbard during anomalous southerly winds


Koenig, Z and Meyer, A and Provost, C and Sennechael, N and Sundfjord, A and Gascard, J-C, Atlantic water circulation and properties northwest of Svalbard during anomalous southerly winds, JGR Oceans, 127, (6) Article e2021JC018357. ISSN 2169-9275 (2022) [Refereed Article]

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DOI: doi:10.1029/2021JC018357


Atlantic Water (AW), the main source of heat and salt for the Arctic Ocean, undergoes large transformations (cooling and freshening) north of Svalbard as it flows near the surface above the Yermak Plateau (YP). In September 2017, a SeaExplorer ocean glider deployed in the West Spitsbergen Current (WSC) and recovered north of Svalbard documented the circulation and properties of the AW crossing the YP. The glider sampled the different branches of the AW flowing into the Arctic around the YP: the WSC, the Svalbard Branch (SB), the Yermak Pass Branch, and the Yermak Branch. Unusual southerly winds prevailed in summer 2017 impacting AW circulation in the region. Cold and fresh lenses of shelf-origin waters detached from the slope in the WSC to reach their density level below the core of the AW. This resulted in cooling and freshening of the AW inflow from below. The eastward current associated with the SB was found to be weak at its usual location above the 400 m isobath, likely the result of the adjustment of the flow influenced by anomalous southerly wind conditions.

Item Details

Item Type:Refereed Article
Keywords:Arctic, oceanography, glider, Atlantic Water, Svalbard, Yermak Plateau, eddies, lenses, ocean circulation, wind forcing
Research Division:Physical Sciences
Research Group:Other physical sciences
Research Field:Other physical sciences not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Meyer, A (Dr Amelie Meyer)
ID Code:150574
Year Published:2022
Funding Support:Australian Research Council (DE200100414)
Deposited By:Oceans and Cryosphere
Deposited On:2022-06-21
Last Modified:2022-06-22

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