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

Bozem, Heiko; Hoor, Peter; Kunkel, Daniel; Köllner, Franziska; Schneider, Johannes; Herber, Andreas; Schulz, Hannes; Leaitch, W. Richard; Aliabadi, Amir A.; Willis, Megan D.; Burkart, Julia; Abbatt, Jonathan P. D.

doi:https://doi.org/10.5194/acp-19-15049-2019

Articles | Volume 19, issue 23

https://doi.org/10.5194/acp-19-15049-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

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

https://doi.org/10.5194/acp-19-15049-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 23

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, Peter Hoor, Daniel Kunkel, Franziska Köllner, Johannes Schneider, Andreas Herber, Hannes Schulz, W. Richard Leaitch, Amir A. Aliabadi, Megan D. Willis, Julia Burkart, and Jonathan P. D. Abbatt

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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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