Articles | Volume 19, issue 4
Research article
18 Jul 2023
Research article |  | 18 Jul 2023

The Weddell Gyre heat budget associated with the Warm Deep Water circulation derived from Argo floats

Krissy Anne Reeve, Torsten Kanzow, Olaf Boebel, Myriel Vredenborg, Volker Strass, and Rüdiger Gerdes

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A gridded data set of upper-ocean hydrographic properties in the Weddell Gyre obtained by objective mapping of Argo float measurements
K. A. Reeve, O. Boebel, T. Kanzow, V. Strass, G. Rohardt, and E. Fahrbach
Earth Syst. Sci. Data, 8, 15–40,,, 2016
Short summary

Cited articles

Akitomo, K.: Thermobaric deep convection, baroclinic instability, and their roles in vertical heat transport around Maud Rise in the Weddell Sea, J. Geophys. Res., 111, C09027,, 2006. 
Argo: Argo float data and metadata from Global Data Assembly Centre (Argo GDAC), SEANOE [data set],, 2000 (data available at:,, last access: 11 August 2017). 
Behrendt, A., Fahrbach, E., Hoppema, M., Rohardt, G., Boebel, O., Klatt, O., Wisotzki, A., and Witte, H.: Variations of winter water properties and sea ice along the Greenwich Meridian on decadal time scales, Deep-Sea Res. Pt. II, 58, 2524–2532,, 2011. 
Cisewski, B., Strass, V. H., and Prandke, H.: Upper-ocean vertical mixing in the Antarctic Polar Front Zone, Deep-Sea Res. Pt. II, 52, 1087–1108,, 2005. 
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.