Articles | Volume 2, issue 4
https://doi.org/10.5194/wcd-2-1073-2021
https://doi.org/10.5194/wcd-2-1073-2021
Research article
 | 
09 Nov 2021
Research article |  | 09 Nov 2021

Systematic assessment of the diabatic processes that modify low-level potential vorticity in extratropical cyclones

Roman Attinger, Elisa Spreitzer, Maxi Boettcher, Heini Wernli, and Hanna Joos

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Latest update: 25 Feb 2024
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Short summary
Diabatic processes affect the development of extratropical cyclones. This work provides a systematic assessment of the diabatic processes that modify potential vorticity (PV) in model simulations. PV is primarily produced by condensation and convection. Given favorable environmental conditions, long-wave radiative cooling and turbulence become the primary process at the cold and warm fronts, respectively. Turbulence and long-wave radiative heating produce negative PV anomalies at the fronts.