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Winter to summer oceanographic observations in the Arctic Ocean north of Svalbard

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Meyer, A ORCID: 0000-0003-0447-795X, Sundfjord, A, Fer, I, Provost, C, Robineau, NV, Koenig, Z, Onarheim, IH, Smedsrud, LH, Duarte, P, Dodd, PA, Graham, RM, Schmidtko, S and Kauko, HM 2017 , 'Winter to summer oceanographic observations in the Arctic Ocean north of Svalbard' , Journal of Geophysical Research: Oceans, vol. 122, no. 8 , pp. 6218-6237 , doi: 10.1002/2016JC012391.

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Abstract

Oceanographic observations from the Eurasian Basin north of Svalbard collected between January and June 2015 from the N‐ICE2015 drifting expedition are presented. The unique winter observations are a key contribution to existing climatologies of the Arctic Ocean, and show a ∼100 m deep winter mixed layer likely due to high sea ice growth rates in local leads. Current observations for the upper ∼200 m show mostly a barotropic flow, enhanced over the shallow Yermak Plateau. The two branches of inflowing Atlantic Water are partly captured, confirming that the outer Yermak Branch follows the perimeter of the plateau, and the inner Svalbard Branch the coast. Atlantic Water observed to be warmer and shallower than in the climatology, is found directly below the mixed layer down to 800 m depth, and is warmest along the slope, while its properties inside the basin are quite homogeneous. From late May onwards, the drift was continually close to the ice edge and a thinner surface mixed layer and shallower Atlantic Water coincided with significant sea ice melt being observed.

Item Type: Article
Authors/Creators:Meyer, A and Sundfjord, A and Fer, I and Provost, C and Robineau, NV and Koenig, Z and Onarheim, IH and Smedsrud, LH and Duarte, P and Dodd, PA and Graham, RM and Schmidtko, S and Kauko, HM
Keywords: Arctic, Yermak Plateau, N-ICE2015, oceanography, hydrography, climatology, mixed layer ocean circulation
Journal or Publication Title: Journal of Geophysical Research: Oceans
Publisher: Wiley-Blackwell Publishing Inc.
ISSN: 2169-9275
DOI / ID Number: 10.1002/2016JC012391
Copyright Information:

Copyright 2017. The Authors. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) http://creativecommons.org/licenses/by-nc-nd/4.0/

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