Articles | Volume 13, issue 10
Geosci. Model Dev., 13, 4749–4771, 2020
Geosci. Model Dev., 13, 4749–4771, 2020

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 et al.

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Cited articles

Bacmeister, J. T., Wehner, M. F., Neale, R. B., Gettelman, A., Hannay, C., Lauritzen, P. H., Caron, J. M., and Truesdale, J. E.: Exploratory High-Resolution Climate Simulations using the Community Atmosphere Model (CAM), J. Climate, 27, 3073–3099,, 2013. 
Bombardi, R. J. and Carvalho, L. M. V: IPCC global coupled model simulations of the South America monsoon system, Clim. Dynam., 33, 893,, 2008. 
Bombardi, R. J., Trenary, L., Pegion, K., Cash, B., DelSole, T., and Kinter III, J. L.: Seasonal Predictability of Summer Rainfall over South America, J. Climate., 31, 8181–8195,, 2018. 
Chevuturi, A.: “asop_duration” – Wet-spell and dry-spell duration, GitHub, available at:, last access: January 2020. 
Chevuturi, A., Klingaman, N. P., and Martin, G.: nick-klingaman/dubstep: Initial DUBSTEP project release (Version v0.1), Zenodo,, 2020. 
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.