Transport parameterization of the Polar SWIFT model (version 2)
- Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany
- Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany
Abstract. The Polar SWIFT model is a fast scheme for calculating the chemistry of stratospheric ozone depletion in the polar vortex in winter. It is intended for use in General Circulation Models (GCMs) and Earth System Models (ESMs) to enable the simulation of interactions between the ozone layer and climate, when a full stratospheric chemistry scheme is computationally too expensive. Many GCMs do not include a usable general scheme for the transport and mixing of chemical species in the stratosphere. When using the Polar SWIFT model in a GCM, it is usually necessary to parameterize the transport of ozone in order to obtain the total change of ozone as the sum of the change by transport and by chemistry. We present a transport parameterization for the Polar SWIFT model that simulates the change of vortex-averaged ozone by transport in a fast and simple way without the need for a complex transport scheme in the GCM.
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Ingo Wohltmann and Daniel Kreyling
Status: open (until 31 May 2022)
Ingo Wohltmann and Daniel Kreyling
Model code and software
ATLAS Chemistry and Transport Model Code Repository Ingo Wohltmann https://gitlab.awi.de/iwohltmann/atlas
Matlab scripts used for this work, including stand-alone models of transport parameterization and SWIFT Ingo Wohltmann https://doi.org/10.5281/zenodo.5834222
Ingo Wohltmann and Daniel Kreyling
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