Published August 14, 2025 | Version 1.0
Dataset Open

Bischof et al. 2025 - Southern Hemisphere Sudden Stratospheric Warmings Continue to Be Relevant Under Global Warming

  • 1. ROR icon GEOMAR Helmholtz Centre for Ocean Research Kiel
  • 2. Department of Meteorology and Geophysics, Universität Wien, Vienna, Austria
  • 3. EDMO icon Helmholtz Centre for Ocean Research Kiel

Description

Data to reproduce the figures in Bischof et al. 2025: "Southern Hemisphere Sudden Stratospheric Warmings Continue to Be Relevant Under Global Warming" submitted to ACP in August 2025. 

Modelling experiments are based on the FOCI model (Matthes et al. 2020) in an AMIP-like setup to carry out a historical ensemble and time slice experiments using 2018, +1.5K, +2K, +3K and +4K global warming background conditions in the atmosphere and on land (both following the SSP5-8.5 scenario) as well as in the ocean (daily forcing data based on ERA5 plus modelled SST trends for the global wamring time slices). More information on the experimental design can be found in publication connected to this dataset (see above). Ozone data for the global warming time slices is based on CMIP forcing (SSP5-8.5) and included here only for the sake of completeness.

The Experiments are summarized in the table below:

Experiment Model Simulation Start year End year total #years
         
Historical SH007 1980 2019 200
RP004 1980 2019
RP005 1980 2019
RP007 1980 2019
RP008 1980 2019
         
2018 SH009 2060 2159 302
SH013 2018 2118
SH017 2018 2118
         
1.5 K global warming SH011 2018 2119 203
SH014 2018 2118
         
2 K global warming RP003 2018 2119 204
RP010 2018 2119
         
3 K global warming SH012 2018 2119 203
SH015 2018 2118
         
4 K global warming SH010 2060 2159 201
SH016 2018 2118

 

References:

Matthes, K., Biastoch, A., Wahl, S., Harlaß, J., Martin, T., Brücher, T., Drews, A., Ehlert, D., Getzlaff, K., Krüger, F., Rath, W., Scheinert, M., Schwarzkopf, F.U., Bayr, T., Schmidt, H., Park, W., 2020. The Flexible Ocean and Climate Infrastructure version 1 (FOCI1): mean state and variability. Geoscientific Model Development 13, 2533–2568. https://doi.org/10.5194/gmd-13-2533-2020

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