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Preprints
https://doi.org/10.5194/essd-2020-70
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-70
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: data description paper 06 Apr 2020

Submitted as: data description paper | 06 Apr 2020

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This preprint is currently under review for the journal ESSD.

A volumetric census of the Barents Sea in a changing climate

Sylvain Watelet1,a, Øystein Skagseth2, Vidar S. Lien2, Helge Sagen2, Øivind Østensen2, Viktor Ivshin3, and Jean-Marie Beckers1 Sylvain Watelet et al.
  • 1Department of Astrophysics, Geophysics and Oceanography, GeoHydrodynamics and Environment Research Unit, FOCUS Research Unit, University of Liège, Liège, Belgium
  • 2Institute of Marine Research, Bergen, Norway
  • 3Polar Branch of Russian Federal Research Institute of Fisheries and Oceanography (PINRO), Murmansk, Russia
  • acurrently at: Observation Scientific Service, Royal Meteorological Institute, Brussels, Belgium

Abstract. Due to its location between the Norwegian Sea and the Arctic Ocean, the Barents Sea is one of the main pathways of the Atlantic Meridional Overturning Circulation. Changes in its water masses potentially affect the thermohaline circulation through the alteration of the dense water formation process. In order to prospect such changes, we present here a seasonal atlas of the Barents Sea including both temperature and salinity for the period 1965–2016. The atlas is built as a compilation of datasets from the World Ocean Database, the Polar Branch of Russian Federal Research Institute of Fisheries and Oceanography, and the Norwegian Polar Institute using the Data-Interpolating Variational Analysis (DIVA) tool. DIVA allows for a minimization of the expected error with respect to the true field. The atlas is used to provide a volumetric analysis of water mass characteristics and an estimation of the ocean heat and freshwater contents. The results show a recent Atlantification of the Barents Sea, i.e. a general increase of both temperature and salinity, while its density remains stable. The atlas is made freely accessible as user-friendly NetCDF files to encourage further research in the Barents Sea physics (https://doi.org/10.21335/NMDC-2058021735, Watelet et al. (2020)).

Sylvain Watelet et al.

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Sylvain Watelet et al.

Data sets

Barents Sea Atlas S. Watelet, Ø. Skagseth, S. V. Lien, H. Sagen, Ø. Østensen, V. Ivshin, and J.-M. Beckers https://doi.org/10.21335/NMDC-2058021735

Model code and software

DIVA software GHER lab, University of Liège, Belgium https://doi.org/10.5281/zenodo.1407062

Sylvain Watelet et al.

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Short summary
We present here a seasonal atlas of the Barents Sea including both temperature and salinity for the period 1965&ndas;2016. This atlas is performed using several in situ data sources interpolated thanks to the tool DIVA minimizing the expected errors. The results show a recent "Atlantification" of the Barents Sea, i.e. a general increase of both temperature and salinity, while its density remains stable. The atlas is made freely accessible (https://doi.org/10.21335/NMDC-2058021735).
We present here a seasonal atlas of the Barents Sea including both temperature and salinity for...
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