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Volume 18, issue 2 | Copyright

Special issue: The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

Atmos. Chem. Phys., 18, 601-619, 2018
https://doi.org/10.5194/acp-18-601-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 19 Jan 2018

Research article | 19 Jan 2018

A refined method for calculating equivalent effective stratospheric chlorine

Andreas Engel et al.
Data sets

Uncertainty analysis of projections of ozone-depleting substances: mixing ratios, EESC, ODPs, and GWPs G. J. M. Velders and J. S. Daniel https://doi.org/10.5194/acp-14-2757-2014

Earth System Chemistry integrated Modelling (ESCiMo) with the Modular Earth Submodel System (MESSy) version~2.51 P. J\"{o}ckel, H. Tost, A. Pozzer, et al. https://doi.org/10.5194/gmd-9-1153-2016

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We present a new method to derive equivalent effective stratospheric chlorine (EESC), which is based on an improved formulation of the propagation of trends of species with chemical loss from the troposphere to the stratosphere. EESC calculated with the new method shows much better agreement with model-derived ESC. Based on this new formulation, we expect the halogen impact on midlatitude stratospheric ozone to return to 1980 values about 10 years later, then using the current formulation.
We present a new method to derive equivalent effective stratospheric chlorine (EESC), which is...
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