Transport of short-lived halocarbons to the stratosphere over the Pacific Ocean

Filus, Michal T.; Atlas, Elliot L.; Navarro, Maria A.; Meneguz, Elena; Thomson, David; Ashfold, Matthew J.; Carpenter, Lucy J.; Andrews, Stephen J.; Harris, Neil R. P.

doi:https://doi.org/10.5194/acp-20-1163-2020

Articles | Volume 20, issue 2

https://doi.org/10.5194/acp-20-1163-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-1163-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 2

Research article

|

31 Jan 2020

Research article |

| 31 Jan 2020

Transport of short-lived halocarbons to the stratosphere over the Pacific Ocean

Michal T. Filus, Elliot L. Atlas, Maria A. Navarro, Elena Meneguz, David Thomson, Matthew J. Ashfold, Lucy J. Carpenter, Stephen J. Andrews, and Neil R. P. Harris

Data sets

Co-ordinated Airborne Studies in the Tropics (CAST): In-situ airborne, ozonesonde and ground based and atmospheric chemistry measurements Natural Environment Research Council, P. Braesicke, N. Harris, J. A. Pyle, A. Robinson, and G. Vaughan http://catalogue.ceda.ac.uk/uuid/565b6bb5a0535b438ad2fae4c852e1b3

Short summary

The effectiveness of transport of short-lived halocarbons to the upper troposphere and lower stratosphere remains an important unknown in quantifying the supply of ozone-depleting substances to the stratosphere. In early 2014, a major field campaign in Guam in the western Pacific, involving UK and US research aircraft, sampled the tropical troposphere and lower stratosphere. The resulting measurements of CH₃I, CHBr₃ and CH₂Br₂ are compared here with calculations from a Lagrangian model.