Tropical Cyclone Precipitation in the HighResMIP Atmosphere-only Experiments of the PRIMAVERA Project


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Created: Mar 18, 2021 at 9:13 p.m.
Last updated: Mar 23, 2021 at 5:03 p.m.
DOI: 10.4211/hs.0cb8fe11690e4137aa91744f94448671
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Abstract

This study examines the climatology and structure of rainfall associated with tropical cyclones (TCs) based on the atmosphere-only Coupled Model Intercomparison Project Phase 6 (CMIP6) HighResMIP runs of the PRocess-based climate sIMulation: AdVances in high resolution modelling and European climate Risk Assessment (PRIMAVERA) Project during 1979–2014. We evaluate how the spatial resolution of climate models with a variety of dynamic cores and parameterization schemes affects the representation of TC rainfall. These HighResMIP atmosphere-only runs that prescribe historical sea surface temperatures and radiative forcings can well reproduce the observed spatial pattern of TC rainfall climatology, with high-resolution models generally performing better than the low-resolution ones. Overall, the HighResMIP atmosphere-only runs can also reproduce the observed percentage contribution of TC rainfall to total amounts, with an overall better performance by the high-resolution models. The models perform better over ocean than over land in simulating climatological total TC rainfall, TC rainfall proportion and TC rainfall per TC in terms of spatial correlation. All the models in the HighResMIP atmosphere-only runs underestimate the observed composite TC rainfall structure over both land and ocean, especially in their lower resolutions. The underestimation of rainfall composites by the HighResMIP atmosphere-only runs is also supported by the radial profile of TC rainfall. Overall, the increased spatial resolution generally leads to an improved model performance in reproducing the observed TC rainfall properties.

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This resource is described by: Zhang, W., Villarini, G., Scoccimarro, E. et al. Tropical cyclone precipitation in the HighResMIP atmosphere-only experiments of the PRIMAVERA Project. Clim Dyn (2021). https://doi.org/10.1007/s00382-021-05707-x

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This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation Quantification of the Impacts of Urban Areas on Heavy Rainfall and Flooding from North Atlantic Tropical Cyclones EAR‐1840742

How to Cite

Zhang, W., G. Villarini (2021). Tropical Cyclone Precipitation in the HighResMIP Atmosphere-only Experiments of the PRIMAVERA Project, HydroShare, https://doi.org/10.4211/hs.0cb8fe11690e4137aa91744f94448671

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