气候变化领域集成服务门户(CCPortal): The Lack of QBO-MJO Connection in CMIP6 Models

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DOI	10.1029/2020GL087295
	The Lack of QBO-MJO Connection in CMIP6 Models
	Kim H.; Caron J.M.; Richter J.H.; Simpson I.R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:11
英文摘要	Observational analysis has indicated a strong connection between the stratospheric quasi-biennial oscillation (QBO) and tropospheric Madden-Julian oscillation (MJO), with MJO activity being stronger during the easterly phase than the westerly phase of the QBO. We assess the representation of this QBO-MJO connection in 30 models participating in the Coupled Model Intercomparison Project 6. While some models reasonably simulate the QBO during boreal winter, none of them capture a difference in MJO activity between easterly and westerly QBO that is larger than that which would be expected from the random sampling of internal variability. The weak signal of the simulated QBO-MJO connection may be due to the weaker amplitude of the QBO than observed, especially between 100 to 50 hPa. This weaker amplitude in the models is seen both in the QBO-related zonal wind and temperature, the latter of which is thought to be critical for destabilizing tropical convection. © 2020. The Authors.
英文关键词	Earth sciences; Geophysics; Boreal winters; Coupled Model Intercomparison Project; Internal variability; Madden-Julian oscillation; Observational analysis; Quasi-biennial oscillation; Random sampling; Tropical convection; Climatology; atmospheric modeling; climate modeling; CMIP; Madden-Julian oscillation; quasi-biennial oscillation; simulation; westerly; zonal wind
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170262
作者单位	School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, United States; Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	Kim H.,Caron J.M.,Richter J.H.,et al. The Lack of QBO-MJO Connection in CMIP6 Models[J],2020,47(11).
APA	Kim H.,Caron J.M.,Richter J.H.,&Simpson I.R..(2020).The Lack of QBO-MJO Connection in CMIP6 Models.Geophysical Research Letters,47(11).
MLA	Kim H.,et al."The Lack of QBO-MJO Connection in CMIP6 Models".Geophysical Research Letters 47.11(2020).