Ocean Science
Ocean Science
OS
Articles | Volume 20, issue 1
Articles | Volume 20, issue 1
https://doi.org/10.5194/os-20-85-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-20-85-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 1
Research article
 | 
22 Jan 2024
Research article |  | 22 Jan 2024

Altered Weddell Sea warm- and dense-water pathways in response to 21st-century climate change

Cara Nissen, Ralph Timmermann, Mathias van Caspel, and Claudia Wekerle

Data sets

FESOM-REcoM model data: Lagrangian particle trajectories Cara Nissen https://doi.org/10.5281/zenodo.8051366

FESOM-REcoM model data (Eulerian output): HighRes_highLat_SO FESOM1.4-REcoM2 model simulations to project future change in the coupled physical-biogeochemical system simA historical variableAtmCO2 variableClimate Cara Nissen, Judith Hauck, Mario Hoppema, Ralph Timmermann, and Özgür Gürses https://doi.org/10.26050/WDCC/FESOM14-REcoM2_A_hist_vA_vC

FESOM-REcoM model data (Eulerian output): HighRes_highLat_SO FESOM1.4-REcoM2 model simulations to project future change in the coupled physical-biogeochemical system simA SSP585 variableAtmCO2 variableClimate Cara Nissen, Judith Hauck, Mario Hoppema, Ralph Timmermann, and Özgür Gürses https://doi.org/10.26050/WDCC/FESOM14-REcoM2_A_s585_vA_vC

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Short summary
The southeastern Weddell Sea is important for global ocean circulation due to the cross-shelf-break exchange of Dense Shelf Water and Warm Deep Water, but their exact circulation pathways remain elusive. Using Lagrangian model experiments in an eddy-permitting ocean model, we show how present circulation pathways and transit times of these water masses on the continental shelf are altered by 21st-century climate change, which has implications for local ice-shelf basal melt rates and ecosystems.
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