Articles | Volume 13, issue 10
https://doi.org/10.5194/gmd-13-4749-2020
https://doi.org/10.5194/gmd-13-4749-2020
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, Amulya Chevuturi, Peter Cook, Nicholas P. Klingaman, and Christopher E. Holloway

Related authors

Have river flow droughts become more severe? A review of the evidence from the UK – a data-rich, temperate environment
Jamie Hannaford, Stephen Turner, Amulya Chevuturi, Wilson Chan, Lucy J. Barker, Maliko Tanguy, Simon Parry, and Stuart Allen
Hydrol. Earth Syst. Sci., 29, 4371–4394, https://doi.org/10.5194/hess-29-4371-2025,https://doi.org/10.5194/hess-29-4371-2025, 2025
Short summary
Optimising ensemble streamflow predictions with bias correction and data assimilation techniques
Maliko Tanguy, Michael Eastman, Amulya Chevuturi, Eugene Magee, Elizabeth Cooper, Robert H. B. Johnson, Katie Facer-Childs, and Jamie Hannaford
Hydrol. Earth Syst. Sci., 29, 1587–1614, https://doi.org/10.5194/hess-29-1587-2025,https://doi.org/10.5194/hess-29-1587-2025, 2025
Short summary
The Regional Coupled Suite (RCS-IND1): application of a flexible regional coupled modelling framework to the Indian region at kilometre scale
Juan Manuel Castillo, Huw W. Lewis, Akhilesh Mishra, Ashis Mitra, Jeff Polton, Ashley Brereton, Andrew Saulter, Alex Arnold, Segolene Berthou, Douglas Clark, Julia Crook, Ananda Das, John Edwards, Xiangbo Feng, Ankur Gupta, Sudheer Joseph, Nicholas Klingaman, Imranali Momin, Christine Pequignet, Claudio Sanchez, Jennifer Saxby, and Maria Valdivieso da Costa
Geosci. Model Dev., 15, 4193–4223, https://doi.org/10.5194/gmd-15-4193-2022,https://doi.org/10.5194/gmd-15-4193-2022, 2022
Short summary
Characterising the interaction of tropical and extratropical air masses controlling East Asian summer monsoon progression using a novel frontal detection approach
Ambrogio Volonté, Andrew G. Turner, Reinhard Schiemann, Pier Luigi Vidale, and Nicholas P. Klingaman
Weather Clim. Dynam., 3, 575–599, https://doi.org/10.5194/wcd-3-575-2022,https://doi.org/10.5194/wcd-3-575-2022, 2022
Short summary
Simulations of Bay of Bengal tropical cyclones in a regional convection-permitting atmosphere–ocean coupled model
Jennifer Saxby, Julia Crook, Simon Peatman, Cathryn Birch, Juliane Schwendike, Maria Valdivieso da Costa, Juan Manuel Castillo Sanchez, Chris Holloway, Nicholas P. Klingaman, Ashis Mitra, and Huw Lewis
Weather Clim. Dynam. Discuss., https://doi.org/10.5194/wcd-2021-46,https://doi.org/10.5194/wcd-2021-46, 2021
Preprint withdrawn
Short summary

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, https://doi.org/10.1175/JCLI-D-13-00387.1, 2013. 
Bombardi, R. J. and Carvalho, L. M. V: IPCC global coupled model simulations of the South America monsoon system, Clim. Dynam., 33, 893, https://doi.org/10.1007/s00382-008-0488-1, 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, https://doi.org/10.1175/JCLI-D-18-0191.1, 2018. 
Chevuturi, A.: “asop_duration” – Wet-spell and dry-spell duration, GitHub, available at: https://github.com/nick-klingaman/dubstep/tree/master/asop_duration, last access: January 2020. 
Chevuturi, A., Klingaman, N. P., and Martin, G.: nick-klingaman/dubstep: Initial DUBSTEP project release (Version v0.1), Zenodo, https://doi.org/10.5281/zenodo.3997114, 2020. 
Download
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.
Share