Articles | Volume 22, issue 1
https://doi.org/10.5194/acp-22-197-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-22-197-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Jan 2022
Research article |
| 07 Jan 2022
| 07 Jan 2022
Specified dynamics scheme impacts on wave-mean flow dynamics, convection, and tracer transport in CESM2 (WACCM6)
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Patrick Callaghan
Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Isla R. Simpson
Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Simone Tilmes
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
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Latest update: 27 May 2025
Short summary
Specified dynamics schemes attempt to constrain the atmospheric circulation in a climate model to isolate the role of transport in chemical variability, evaluate model physics, and interpret field campaign observations. We show that the specified dynamics scheme in CESM2 erroneously suppresses convection and induces circulation errors that project onto errors in tracers, even using the most optimal settings. Development of a more sophisticated scheme is necessary for future progress.
Specified dynamics schemes attempt to constrain the atmospheric circulation in a climate model...
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