气候变化领域集成服务门户(CCPortal): The Role of the Mean State on MJO Simulation in CESM2 Ensemble Simulation

CCPortal

DOI	10.1029/2020GL089824
	The Role of the Mean State on MJO Simulation in CESM2 Ensemble Simulation
	Kang D.; Kim D.; Ahn M.-S.; Neale R.; Lee J.; Gleckler P.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:24
英文摘要	This study examines the role of the mean state in the propagation of the Madden-Julian oscillation (MJO) over the Maritime Continent (MC). We use an ensemble of simulations made with a single model—the Community Earth System Model version 2—to assess the effect of the mean state that is unaffected by that of model components such as parameterization schemes. Results show that the background meridional moisture gradient is much steeper over the MC region in the periods with a stronger MJO propagation. Column water vapor budget of the MJO strongly suggests that the simulated mean state affects MJO via its impacts on moisture dynamics—a greater advection of mean moisture by MJO wind in the MC region is responsible for the anomalous MJO activity. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Budget control; Moisture; Earth system model; Ensemble simulation; Madden-Julian oscillation; Maritime Continent; Model components; Moisture dynamics; Moisture gradient; Parameterization schemes; Climatology
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/169289
作者单位	Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Lawrence Livermore National Laboratory, Livermore, CA, United States; National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	Kang D.,Kim D.,Ahn M.-S.,et al. The Role of the Mean State on MJO Simulation in CESM2 Ensemble Simulation[J],2020,47(24).
APA	Kang D.,Kim D.,Ahn M.-S.,Neale R.,Lee J.,&Gleckler P.J..(2020).The Role of the Mean State on MJO Simulation in CESM2 Ensemble Simulation.Geophysical Research Letters,47(24).
MLA	Kang D.,et al."The Role of the Mean State on MJO Simulation in CESM2 Ensemble Simulation".Geophysical Research Letters 47.24(2020).