Articles | Volume 19, issue 4
https://doi.org/10.5194/os-19-1083-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-19-1083-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
The Weddell Gyre heat budget associated with the Warm Deep Water circulation derived from Argo floats
Physical Oceanography of the Polar Seas, Climate Sciences, Alfred Wegener Institute, Bremerhaven, Germany
Torsten Kanzow
Physical Oceanography of the Polar Seas, Climate Sciences, Alfred Wegener Institute, Bremerhaven, Germany
Department of Physics and Electrical Engineering, Bremen University,
Bremen, Germany
Olaf Boebel
Physical Oceanography of the Polar Seas, Climate Sciences, Alfred Wegener Institute, Bremerhaven, Germany
Myriel Vredenborg
Physical Oceanography of the Polar Seas, Climate Sciences, Alfred Wegener Institute, Bremerhaven, Germany
Volker Strass
Physical Oceanography of the Polar Seas, Climate Sciences, Alfred Wegener Institute, Bremerhaven, Germany
Rüdiger Gerdes
Physical Oceanography of the Polar Seas, Climate Sciences, Alfred Wegener Institute, Bremerhaven, Germany
Earth and Environmental Sciences, Jacobs University, Bremen, Germany
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Céline Heuzé, Oliver Huhn, Maren Walter, Natalia Sukhikh, Salar Karam, Wiebke Körtke, Myriel Vredenborg, Klaus Bulsiewicz, Jürgen Sültenfuß, Ying-Chih Fang, Christian Mertens, Benjamin Rabe, Sandra Tippenhauer, Jacob Allerholt, Hailun He, David Kuhlmey, Ivan Kuznetsov, and Maria Mallet
Earth Syst. Sci. Data, 15, 5517–5534, https://doi.org/10.5194/essd-15-5517-2023, https://doi.org/10.5194/essd-15-5517-2023, 2023
Short summary
Short summary
Gases dissolved in the ocean water not used by the ecosystem (or "passive tracers") are invaluable to track water over long distances and investigate the processes that modify its properties. Unfortunately, especially so in the ice-covered Arctic Ocean, such gas measurements are sparse. We here present a data set of several passive tracers (anthropogenic gases, noble gases and their isotopes) collected over the full ocean depth, weekly, during the 1-year drift in the Arctic during MOSAiC.
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Short summary
The Weddell Gyre is key for bottom water formation. Prior studies show warming of the whole water column, except for the gyre’s heat source, Warm Deep Water (WDW). We use Argo floats to estimate a heat budget within WDW. Heat advects into the southern limb and upwards from below throughout. Turbulent diffusion removes heat through the top and transports heat from the southern limb into the interior and southwards towards Antarctica. Turbulent diffusion imports heat across the northern boundary.
The Weddell Gyre is key for bottom water formation. Prior studies show warming of the whole...