Articles | Volume 18, issue 7
Atmos. Chem. Phys., 18, 5157–5171, 2018
https://doi.org/10.5194/acp-18-5157-2018
Atmos. Chem. Phys., 18, 5157–5171, 2018
https://doi.org/10.5194/acp-18-5157-2018

Research article 17 Apr 2018

Research article | 17 Apr 2018

Observations of ozone-poor air in the tropical tropopause layer

Richard Newton et al.

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Latest update: 03 May 2021
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Short summary
We consider the ozone measurements from aircraft during the CAST/CONTRAST/ATTREX campaigns of 2014. Low concentrations of ozone were found in the layer of 10–15 km altitude, which is indicative of uplift of ozone-poor air from near the sea surface to 10–15 km altitude. Chemicals that have origins in the sea were found in greater abundance when ozone concentrations were low compared to when ozone concentrations were high. The lowest ozone concentrations were found in the Southern Hemisphere.
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