气候变化领域集成服务门户(CCPortal): Global Mean Climate and Main Patterns of Variability in the CMCC-CM2 Coupled Model

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DOI	10.1029/2018MS001369
	Global Mean Climate and Main Patterns of Variability in the CMCC-CM2 Coupled Model
	Cherchi A.; Fogli P.G.; Lovato T.; Peano D.; Iovino D.; Gualdi S.; Masina S.; Scoccimarro E.; Materia S.; Bellucci A.; Navarra A.
发表日期	2019
ISSN	19422466
起始页码	185
结束页码	209
卷号	11 期号:1
英文摘要	Euro-Mediterranean Centre on Climate Change coupled climate model (CMCC-CM2) represents the new family of the global coupled climate models developed and used at CMCC. It is based on the atmospheric, land and sea ice components from the Community Earth System Model coupled with the global ocean model Nucleus for European Modeling of the Ocean. This study documents the model components, the coupling strategy, particularly for the oceanic, atmospheric, and sea ice components, and the overall model ability in reproducing the observed mean climate and main patterns of interannual variability. As a first step toward a more comprehensive, process-oriented, validation of the model, this work analyzes a 200-year simulation performed under constant forcing corresponding to present-day climate conditions. In terms of mean climate, the model is able to realistically reproduce the main patterns of temperature, precipitation, and winds. Specifically, we report improvements in the representation of the sea surface temperature with respect to the previous version of the model. In terms of mean atmospheric circulation features, we notice a realistic simulation of upper tropospheric winds and midtroposphere geopotential eddies. The oceanic heat transport and the Atlantic meridional overturning circulation satisfactorily compare with present-day observations and estimates from global ocean reanalyses. The sea ice patterns and associated seasonal variations are realistically reproduced in both hemispheres, with a better skill in winter. Main weaknesses of the simulated climate are related with the precipitation patterns, specifically in the tropical regions with large dry biases over the Amazon basin. Similarly, the seasonal precipitation associated with the monsoons, mostly over Asia, is weaker than observed. The main patterns of interannual variability in terms of dominant empirical orthogonal functions are faithfully reproduced, mostly in the Northern Hemisphere winter. In the tropics the main teleconnection patterns associated with El Niño–Southern Oscillation and with the Indian Ocean Dipole are also in good agreement with observations. ©2018. The Authors.
语种	英语
scopus关键词	Atmospheric pressure; Climate change; Oceanography; Orthogonal functions; Sea ice; Surface waters; Tropics; Atlantic meridional overturning circulations; Atmospheric circulation; Empirical Orthogonal Function; Interannual variability; Precipitation patterns; Sea surface temperature (SST); Seasonal precipitations; Teleconnection patterns; Climate models; annual variation; climate change; climate conditions; climate modeling; eddy; El Nino-Southern Oscillation; global climate; global ocean; heat transfer; Indian Ocean Dipole; meridional circulation; model validation; Northern Hemisphere; sea ice; sea surface temperature; Amazon Basin; Asia
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156991
作者单位	Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici, Bologna, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Bologna, Italy
推荐引用方式 GB/T 7714	Cherchi A.,Fogli P.G.,Lovato T.,et al. Global Mean Climate and Main Patterns of Variability in the CMCC-CM2 Coupled Model[J],2019,11(1).
APA	Cherchi A..,Fogli P.G..,Lovato T..,Peano D..,Iovino D..,...&Navarra A..(2019).Global Mean Climate and Main Patterns of Variability in the CMCC-CM2 Coupled Model.Journal of Advances in Modeling Earth Systems,11(1).
MLA	Cherchi A.,et al."Global Mean Climate and Main Patterns of Variability in the CMCC-CM2 Coupled Model".Journal of Advances in Modeling Earth Systems 11.1(2019).