Articles | Volume 24, issue 22
https://doi.org/10.5194/acp-24-12557-2024
https://doi.org/10.5194/acp-24-12557-2024
Research article
 | 
14 Nov 2024
Research article |  | 14 Nov 2024

The impact of dehydration and extremely low HCl values in the Antarctic stratospheric vortex in mid-winter on ozone loss in spring

Yiran Zhang-Liu, Rolf Müller, Jens-Uwe Grooß, Sabine Robrecht, Bärbel Vogel, Abdul Mannan Zafar, and Ralph Lehmann

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Cited articles

Ardra, D., Kuttippurath, J., Roy, R., Kumar, P., Raj, S., Müller, R., and Feng, W.: The unprecedented ozone loss in the Arctic winter and spring of 2010/2011 and 2019/2020, ACS Earth and Space Chemistry, 6, sp-2021-003338, https://doi.org/10.1021/acsearthspacechem.1c00333, 2022. a
Becker, G., Grooß, J.-U., McKenna, D. S., and Müller, R.: Stratospheric photolysis frequencies: Impact of an improved numerical solution of the radiative transfer equation, J. Atmos. Chem., 37, 217–229, https://doi.org/10.1023/A:1006468926530, 2000. a
Bodeker, G. E. and Kremser, S.: Indicators of Antarctic ozone depletion: 1979 to 2019, Atmos. Chem. Phys., 21, 5289–5300, https://doi.org/10.5194/acp-21-5289-2021, 2021. a, b
Brown, P. N., Byrne, G. D., and Hindmarsh, A. C.: VODE: A variable coefficient ODE solver, SIAM J. Sci. Stat. Comput., 10, 1038–1051, 1989. a
Burkholder, J. B., Sander, S. P., Abbatt, J. P. D., Barker, J. R., Huie, R. E., Kolb, C. E., Kurylo, M. J., Orkin, V. L., Wilmouth, D. M., and Wine, P. H.: Chemical kinetics and photochemical data for use in atmospheric studies, Evaluation Number 18, JPL Publication 15-10, https://hdl.handle.net/2014/45510, 2015. a, b, c, d, e, f, g, h, i, j, k, l
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Short summary
HCl null cycles in Antarctica are important for maintaining high values of ozone-destroying chlorine in Antarctic spring. These HCl null cycles are not affected by (1) using the most recent recommendations of chemical kinetics (compared to older recommendations), (2) accounting for dehydration in the Antarctic winter vortex, and (3) considering the observed (but unexplained) depletion of HCl in mid-winter in the Antarctic vortex throughout Antarctic winter.
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