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Article

Impact of Higher Resolution on Precipitation over China in CMIP6 HighResMIP Models

Beijing Climate Center, China Meteorological Administration, Beijing 100081, China
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Author to whom correspondence should be addressed.
Academic Editor: Daniel Argüeso
Atmosphere 2021, 12(6), 762; https://doi.org/10.3390/atmos12060762
Received: 30 April 2021 / Revised: 3 June 2021 / Accepted: 8 June 2021 / Published: 12 June 2021
(This article belongs to the Section Climatology)
Climate models participated in the High Resolution Model Intercomparison Project (HighResMIP) of Coupled Model Intercomparison Project 6 (CMIP6) are evaluated to reveal the impact of enhanced resolution in simulating the climatological distribution of precipitation over China. The multi-model mean (MME) of five models with 30–50 km horizontal resolution in the atmosphere (MME-50) had a better performance in reproducing the observed spatial patterns of precipitation over Northwest China and Southwest China than the MME of their lower-resolution (70–140 km) models (MME-100). Such an improvement is mainly attributed to the topographical rainfall reproduced by the higher-resolution models, which have the superiority of reproducing the local vertical circulation over the complex terrain. The MME-50 also improves the skill score of the 850-hPa southwesterly of the Indian-Burma trough relative to the MME-100, which may contribute to better simulation skill of precipitation over Southwest China. The MME-50 (0.92) has a close skill score to the MME-100 (0.91) in the simulation of East Asian summer monsoon, which explains why the MME-50 cannot improve the simulation skill of the precipitation over Southeast China and Northern China. The skill score of the precipitation over the Tibetan Plateau (TP) simulated by the MME-50 is even lower than the MME-100, revealing that simulating the climate over the high plateau is still a challenge for the high-resolution models. View Full-Text
Keywords: high-resolution; climate model; CMIP6; HighResMIP; precipitation; East Asian summer monsoon high-resolution; climate model; CMIP6; HighResMIP; precipitation; East Asian summer monsoon
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MDPI and ACS Style

Xin, X.; Wu, T.; Jie, W.; Zhang, J. Impact of Higher Resolution on Precipitation over China in CMIP6 HighResMIP Models. Atmosphere 2021, 12, 762. https://doi.org/10.3390/atmos12060762

AMA Style

Xin X, Wu T, Jie W, Zhang J. Impact of Higher Resolution on Precipitation over China in CMIP6 HighResMIP Models. Atmosphere. 2021; 12(6):762. https://doi.org/10.3390/atmos12060762

Chicago/Turabian Style

Xin, Xiaoge, Tongwen Wu, Weihua Jie, and Jie Zhang. 2021. "Impact of Higher Resolution on Precipitation over China in CMIP6 HighResMIP Models" Atmosphere 12, no. 6: 762. https://doi.org/10.3390/atmos12060762

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