The Met Office HadGEM3-ES chemistry–climate model: evaluation of stratospheric dynamics and its impact on ozone

Hardiman, Steven C.; Butchart, Neal; O'Connor, Fiona M.; Rumbold, Steven T.

doi:https://doi.org/10.5194/gmd-10-1209-2017

Articles | Volume 10, issue 3

https://doi.org/10.5194/gmd-10-1209-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

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

https://doi.org/10.5194/gmd-10-1209-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 3

Development and technical paper

|

20 Mar 2017

Development and technical paper |

| 20 Mar 2017

The Met Office HadGEM3-ES chemistry–climate model: evaluation of stratospheric dynamics and its impact on ozone

Steven C. Hardiman, Neal Butchart, Fiona M. O'Connor, and Steven T. Rumbold

Model code and software

NEMO v3.4 Model code NEMO http://nemo-ocean.eu

CICE Model code United States Los Alamos National Laboratory http://oceans11.lanl.gov/trac/CICE/wiki/SourceCode

Short summary

HadGEM3-ES is improved, with respect to the previous model, in 10 of the 14 metrics considered. A significant bias in stratospheric water vapour is reduced, allowing more accurate simulation of water vapour and ozone concentrations in the stratosphere. Dynamics are found to influence the spatial structure of the simulated ozone hole and the area of polar stratospheric clouds. This research was carried out as part of involvement in the Chemistry-Climate Model Initiative (CCM-I).