Simulations for CMIP6 With the AWI Climate Model AWI‐CM‐1‐1

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  • Tido Semmler
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Sergey Danilov
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Paul Gierz
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Helge F. Goessling
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Jan Hegewald
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Claudia Hinrichs
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Nikolay Koldunov
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Narges Khosravi
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Longjiang Mu
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Thomas Rackow
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Dmitry V. Sein
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Dmitry Sidorenko
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Qiang Wang
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany
  • Thomas Jung
    Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Bremerhaven Germany

書誌事項

公開日
2020-09
権利情報
  • http://creativecommons.org/licenses/by/4.0/
DOI
  • 10.1029/2019ms002009
公開者
American Geophysical Union (AGU)

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説明

<jats:title>Abstract</jats:title> <jats:p>The Alfred Wegener Institute Climate Model (AWI‐CM) participates for the first time in the Coupled Model Intercomparison Project (CMIP), CMIP6. The sea ice‐ocean component, FESOM, runs on an unstructured mesh with horizontal resolutions ranging from 8 to 80 km. FESOM is coupled to the Max Planck Institute atmospheric model ECHAM 6.3 at a horizontal resolution of about 100 km. Using objective performance indices, it is shown that AWI‐CM performs better than the average of CMIP5 models. AWI‐CM shows an equilibrium climate sensitivity of 3.2°C, which is similar to the CMIP5 average, and a transient climate response of 2.1°C which is slightly higher than the CMIP5 average. The negative trend of Arctic sea‐ice extent in September over the past 30 years is 20–30% weaker in our simulations compared to observations. With the strongest emission scenario, the AMOC decreases by 25% until the end of the century which is less than the CMIP5 average of 40%. Patterns and even magnitude of simulated temperature and precipitation changes at the end of this century compared to present‐day climate under the strong emission scenario SSP585 are similar to the multi‐model CMIP5 mean. The simulations show a 11°C warming north of the Barents Sea and around 2°C to 3°C over most parts of the ocean as well as a wetting of the Arctic, subpolar, tropical, and Southern Ocean. Furthermore, in the northern middle latitudes in boreal summer and autumn as well as in the southern middle latitudes, a more zonal atmospheric flow is projected throughout the year.</jats:p>

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