气候变化领域集成服务门户(CCPortal): Effects of Semistochastic Westerly Wind Bursts on ENSO Predictability

CCPortal

DOI	10.1029/2019GL086828
	Effects of Semistochastic Westerly Wind Bursts on ENSO Predictability
	Tan X.; Tang Y.; Lian T.; Zhang S.; Liu T.; Chen D.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:14
英文摘要	Westerly wind bursts (WWBs) occurring over the tropical Pacific play an important role on El Niño-Southern Oscillation (ENSO) dynamics. Currently, climate models have significant biases in their representation of WWBs, which may limit their ability to predict ENSO. In this study, we explore the possibility of improving ENSO prediction by introducing a semistochastic WWBs parameterization scheme into the Community Earth System Model (CESM). Three ensemble hindcasts, namely, the control run with the original CESM, the WWB run with parameterized WWBs, and the Non_WWB run with built-in WWBs removed, are conducted for the period 1982–2016. We find that CESM with parameterized WWBs enables better ENSO prediction, especially for both amplitude and spatial distribution of eastern Pacific and central Pacific El Niño events. This improvement is related to more realistic representation of WWBs which leads to better prediction of surface wind stress anomalies and thermocline depth anomalies. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric pressure; Climate models; Climatology; Forecasting; Parameterization; Earth system model; Eastern pacific; Parameterization schemes; Parameterized; Southern oscillation; Surface wind stress; Thermocline depth; Westerly wind bursts; Wind stress; air-sea interaction; amplitude; climate modeling; El Nino-Southern Oscillation; parameterization; spatial distribution; stochasticity; surface wind; temperature anomaly; thermocline; westerly; wind stress; Pacific Ocean; Pacific Ocean (Tropical)
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/170139
作者单位	State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Environmental Science and Engineering, University of Northern British Columbia, Prince George, Canada; National Marine Environmental Forecasting Center, Beijing, China
推荐引用方式 GB/T 7714	Tan X.,Tang Y.,Lian T.,et al. Effects of Semistochastic Westerly Wind Bursts on ENSO Predictability[J],2020,47(14).
APA	Tan X.,Tang Y.,Lian T.,Zhang S.,Liu T.,&Chen D..(2020).Effects of Semistochastic Westerly Wind Bursts on ENSO Predictability.Geophysical Research Letters,47(14).
MLA	Tan X.,et al."Effects of Semistochastic Westerly Wind Bursts on ENSO Predictability".Geophysical Research Letters 47.14(2020).