Role of atmospheric horizontal resolution in simulating tropical and subtropical South American precipitation in HadGEM3-GC31

Monerie, Paul-Arthur; Chevuturi, Amulya; Cook, Peter; Klingaman, Nicholas P.; Holloway, Christopher E.

doi:https://doi.org/10.5194/gmd-13-4749-2020

Articles | Volume 13, issue 10

https://doi.org/10.5194/gmd-13-4749-2020

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

https://doi.org/10.5194/gmd-13-4749-2020

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

Articles | Volume 13, issue 10

Model evaluation paper

|

02 Oct 2020

Model evaluation paper |

| 02 Oct 2020

Role of atmospheric horizontal resolution in simulating tropical and subtropical South American precipitation in HadGEM3-GC31

Paul-Arthur Monerie, Amulya Chevuturi, Peter Cook, Nicholas P. Klingaman, and Christopher E. Holloway

Supplement

https://doi.org/10.5194/gmd-13-4749-2020-supplement

Data sets

MOHC HadGEM3-GC31-HM model output prepared for CMIP6 HighResMIP. Version YYYYMMDD[1] M. Roberts https://doi.org/10.22033/ESGF/CMIP6.446

MOHC HadGEM3-GC31-MM model output prepared for CMIP6 HighResMIP. Version YYYYMMDD[1] M. Roberts https://doi.org/10.22033/ESGF/CMIP6.1902

MOHC HadGEM3-GC31-LM model output prepared for CMIP6 HighResMIP. Version YYYYMMDD[1] M. Roberts https://doi.org/10.22033/ESGF/CMIP6.1321

Scripts we used for "Role of atmospheric horizontal resolution in simulating tropical and subtropical South American precipitation in HadGEM3-GC31" Paul-Arthur Monerie https://doi.org/10.5281/zenodo.3840095

nick-klingaman/dubstep: Initial DUBSTEP project release (Version v0.1) Amulya Chevuturi, Nicholas P. Klingaman and Gill Martin https://doi.org/10.5281/zenodo.3997114

Short summary

In this study, we assess how increasing the horizontal resolution of HadGEM3-GC31 can allow simulating better tropical and subtropical South American precipitation. We compare simulations of HadGEM3-GC3.1, performed at three different horizontal resolutions. We show that increasing resolution allows decreasing precipitation biases over the Andes and northeast Brazil and improves the simulation of daily precipitation distribution.