Geoscientific Model Development (Aug 2022)
AWI-CM3 coupled climate model: description and evaluation experiments for a prototype post-CMIP6 model
- J. Streffing,
- J. Streffing,
- D. Sidorenko,
- T. Semmler,
- L. Zampieri,
- P. Scholz,
- M. Andrés-Martínez,
- N. Koldunov,
- T. Rackow,
- T. Rackow,
- J. Kjellsson,
- H. Goessling,
- M. Athanase,
- Q. Wang,
- J. Hegewald,
- D. V. Sein,
- D. V. Sein,
- L. Mu,
- L. Mu,
- U. Fladrich,
- D. Barbi,
- D. Barbi,
- P. Gierz,
- S. Danilov,
- S. Danilov,
- S. Juricke,
- S. Juricke,
- G. Lohmann,
- G. Lohmann,
- T. Jung,
- T. Jung
Affiliations
- J. Streffing
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- J. Streffing
- Department of Mathematics & Logistics, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
- D. Sidorenko
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- T. Semmler
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- L. Zampieri
- National Center for Atmospheric Research, 1850 Table Mesa Dr, Boulder, CO 80305, United States of America
- P. Scholz
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- M. Andrés-Martínez
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- N. Koldunov
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- T. Rackow
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- T. Rackow
- European Centre for Medium-Range Weather Forecasts, Robert-Schuman-Platz 3, 53175 Bonn, Germany
- J. Kjellsson
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstraße 1–3, 24148 Kiel, Germany
- H. Goessling
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- M. Athanase
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- Q. Wang
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- J. Hegewald
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- D. V. Sein
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- D. V. Sein
- Shirshov Institute of Oceanology, RAS, Moscow, Russia
- L. Mu
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- L. Mu
- Pilot National Laboratory for Marine Science and Technology, Qingdao, China
- U. Fladrich
- Swedish Meteorological and Hydrological Institute, Folkborgsvägen 17, 60176 Norrköping, Sweden
- D. Barbi
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- D. Barbi
- University IT and Data Center, Rhenish Friedrich Wilhelm University of Bonn, Regina-Pacis-Weg 3, 53113 Bonn, Germany
- P. Gierz
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- S. Danilov
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- S. Danilov
- Department of Mathematics & Logistics, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
- S. Juricke
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- S. Juricke
- Department of Mathematics & Logistics, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
- G. Lohmann
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- G. Lohmann
- Department of Physics, University of Bremen, Bibliothekstraße 1, 28359 Bremen, Germany
- T. Jung
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
- T. Jung
- Department of Physics, University of Bremen, Bibliothekstraße 1, 28359 Bremen, Germany
- DOI
- https://doi.org/10.5194/gmd-15-6399-2022
- Journal volume & issue
-
Vol. 15
pp. 6399 – 6427
Abstract
We developed a new version of the Alfred Wegener Institute Climate Model (AWI-CM3), which has higher skills in representing the observed climatology and better computational efficiency than its predecessors. Its ocean component FESOM2 (Finite-volumE Sea ice–Ocean Model) has the multi-resolution functionality typical of unstructured-mesh models while still featuring a scalability and efficiency similar to regular-grid models. The atmospheric component OpenIFS (CY43R3) enables the use of the latest developments in the numerical-weather-prediction community in climate sciences. In this paper we describe the coupling of the model components and evaluate the model performance on a variable-resolution (25–125 km) ocean mesh and a 61 km atmosphere grid, which serves as a reference and starting point for other ongoing research activities with AWI-CM3. This includes the exploration of high and variable resolution and the development of a full Earth system model as well as the creation of a new sea ice prediction system. At this early development stage and with the given coarse to medium resolutions, the model already features above-CMIP6-average skills (where CMIP6 denotes Coupled Model Intercomparison Project phase 6) in representing the climatology and competitive model throughput. Finally we identify remaining biases and suggest further improvements to be made to the model.
