Large-scale transport into the Arctic: the roles of the midlatitude jet and the Hadley Cell

Yang, Huang; Waugh, Darryn W.; Orbe, Clara; Zeng, Guang; Morgenstern, Olaf; Kinnison, Douglas E.; Lamarque, Jean-Francois; Tilmes, Simone; Plummer, David A.; Jöckel, Patrick; Strahan, Susan E.; Stone, Kane A.; Schofield, Robyn

doi:10.5194/acp-19-5511-2019

Articles | Volume 19, issue 8

https://doi.org/10.5194/acp-19-5511-2019

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

Special issue:

Chemistry–Climate Modelling Initiative (CCMI) (ACP/AMT/ESSD/GMD...

https://doi.org/10.5194/acp-19-5511-2019

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

Articles | Volume 19, issue 8

Research article

|

26 Apr 2019

Research article |

| 26 Apr 2019

Large-scale transport into the Arctic: the roles of the midlatitude jet and the Hadley Cell

Huang Yang, Darryn W. Waugh, Clara Orbe, Guang Zeng, Olaf Morgenstern, Douglas E. Kinnison, Jean-Francois Lamarque, Simone Tilmes, David A. Plummer, Patrick Jöckel, Susan E. Strahan, Kane A. Stone, and Robyn Schofield

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Short summary

We evaluate the performance of a suite of models in simulating the large-scale transport from the northern midlatitudes to the Arctic using a CO-like idealized tracer. We find a large multi-model spread of the Arctic concentration of this CO-like tracer that is well correlated with the differences in the location of the midlatitude jet as well as the northern Hadley Cell edge. Our results suggest the Hadley Cell is key and zonal-mean transport by surface meridional flow needs better constraint.


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