气候变化领域集成服务门户(CCPortal): The roles of the Quasi-Biennial Oscillation and El Nino for entry stratospheric water vapor in observations and coupled chemistry-ocean CCMI and CMIP6 models

CCPortal

DOI	10.5194/acp-22-7523-2022
	The roles of the Quasi-Biennial Oscillation and El Nino for entry stratospheric water vapor in observations and coupled chemistry-ocean CCMI and CMIP6 models
	Ziskin Ziv, Shlomi; Garfinkel, Chaim I.; Davis, Sean; Banerjee, Antara
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	7523
结束页码	7538
卷号	22 期号:11 页码:16
英文摘要	The relative importance of two processes that help control the concentrations of stratospheric water vapor, the Quasi-Biennial Oscillation (QBO) and El Nino-Southern Oscillation (ENSO), are evaluated in observations and in comprehensive coupled ocean-atmosphere-chemistry models. The possibility of nonlinear interactions between these two is evaluated both using multiple linear regression (MLR) and three additional advanced machine learning techniques. The QBO is found to be more important than ENSO; however nonlinear interactions are nonnegligible, and even when ENSO, the QBO, and potential nonlinearities are included, the fraction of entry water vapor variability explained is still substantially less than what is accounted for by cold-point temperatures. While the advanced machine learning techniques perform better than an MLR in which nonlinearities are suppressed, adding nonlinear predictors to the MLR mostly closes the gap in performance with the advanced machine learning techniques. Comprehensive models suffer from too weak a connection between entry water and the QBO; however a notable improvement is found relative to previous generations of comprehensive models. Models with a stronger QBO in the lower stratosphere systematically simulate a more realistic connection with entry water.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000809194900001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273494
作者单位	Ariel University; Hebrew University of Jerusalem; National Oceanic Atmospheric Admin (NOAA) - USA; University of Colorado System; University of Colorado Boulder
推荐引用方式 GB/T 7714	Ziskin Ziv, Shlomi,Garfinkel, Chaim I.,Davis, Sean,et al. The roles of the Quasi-Biennial Oscillation and El Nino for entry stratospheric water vapor in observations and coupled chemistry-ocean CCMI and CMIP6 models[J],2022,22(11):16.
APA	Ziskin Ziv, Shlomi,Garfinkel, Chaim I.,Davis, Sean,&Banerjee, Antara.(2022).The roles of the Quasi-Biennial Oscillation and El Nino for entry stratospheric water vapor in observations and coupled chemistry-ocean CCMI and CMIP6 models.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(11),16.
MLA	Ziskin Ziv, Shlomi,et al."The roles of the Quasi-Biennial Oscillation and El Nino for entry stratospheric water vapor in observations and coupled chemistry-ocean CCMI and CMIP6 models".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.11(2022):16.