Articles | Volume 16, issue 7
Atmos. Chem. Phys., 16, 4641–4659, 2016
https://doi.org/10.5194/acp-16-4641-2016
Atmos. Chem. Phys., 16, 4641–4659, 2016
https://doi.org/10.5194/acp-16-4641-2016

Research article 14 Apr 2016

Research article | 14 Apr 2016

Using beryllium-7 to assess cross-tropopause transport in global models

Hongyu Liu et al.

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Short summary
We assess the utility of cosmogenic beryllium-7, a natural aerosol tracer, for evaluating cross-tropopause transport in global models. We show that model excessive cross-tropopause transport of beryllium-7 corresponds to overestimated stratospheric contribution to tropospheric ozone. We conclude that the observational constraints for beryllium-7 and observed beryllium-7 total deposition fluxes can be used routinely as a first-order assessment of cross-tropopause transport in global models.
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