Articles | Volume 19, issue 23
Atmos. Chem. Phys., 19, 15049–15071, 2019
https://doi.org/10.5194/acp-19-15049-2019

Special issue: NETCARE (Network on Aerosols and Climate: Addressing Key Uncertainties...

Atmos. Chem. Phys., 19, 15049–15071, 2019
https://doi.org/10.5194/acp-19-15049-2019

Research article 13 Dec 2019

Research article | 13 Dec 2019

Characterization of transport regimes and the polar dome during Arctic spring and summer using in situ aircraft measurements

Heiko Bozem et al.

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Latest update: 23 Sep 2021
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Short summary
We present airborne trace gas measurements in the European and Canadian Arctic for July 2014 and April 2015. Based on CO and CO2 in situ data as well as 10 d kinematic back trajectories, we characterize the prevailing transport regimes and derive a tracer-based diagnostic for the determination of the polar dome boundary. Using the tracer-derived boundary, an analysis of the recent transport history of air masses within the polar dome reveals significant differences between spring and summer.
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