气候变化领域集成服务门户(CCPortal): Equatorial Deep Jets and Their Influence on the Mean Equatorial Circulation in an Idealized Ocean Model Forced by Intraseasonal Momentum Flux Convergence

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DOI	10.1029/2020GL087808
	Equatorial Deep Jets and Their Influence on the Mean Equatorial Circulation in an Idealized Ocean Model Forced by Intraseasonal Momentum Flux Convergence
	Bastin S.; Claus M.; Brandt P.; Greatbatch R.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:10
英文摘要	Equatorial deep jets (EDJ) are vertically stacked, downward propagating zonal currents that alternate in direction with depth. In the tropical Atlantic, they have been shown to influence both surface conditions and tracer variability. Despite their importance, the EDJ are absent in most ocean models. Here we show that EDJ can be generated in an idealized ocean model when the model is driven only by the convergence of the meridional flux of intraseasonal zonal momentum diagnosed from a companion model run driven by steady wind forcing, corroborating the recent theory that intraseasonal momentum flux convergence maintains the EDJ. Additionally, the EDJ in our model nonlinearly generate mean zonal currents at intermediate depths that show similarities in structure to the observed circulation in the deep equatorial Atlantic, indicating their importance for simulating the tropical ocean mean state. ©2020. The Authors.
英文关键词	Ocean currents; Tropics; Companion models; Intermediate depths; Intra-seasonal; Meridional fluxes; Surface conditions; Tropical atlantic; Tropical ocean; Zonal currents; Momentum; air-sea interaction; convergence; oceanic current; tropical environment; wind velocity; Atlantic Ocean; Atlantic Ocean (Equatorial); Atlantic 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/170331
作者单位	GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany; Faculty of Mathematics and Natural Sciences, Kiel University, Kiel, Germany
推荐引用方式 GB/T 7714	Bastin S.,Claus M.,Brandt P.,et al. Equatorial Deep Jets and Their Influence on the Mean Equatorial Circulation in an Idealized Ocean Model Forced by Intraseasonal Momentum Flux Convergence[J],2020,47(10).
APA	Bastin S.,Claus M.,Brandt P.,&Greatbatch R.J..(2020).Equatorial Deep Jets and Their Influence on the Mean Equatorial Circulation in an Idealized Ocean Model Forced by Intraseasonal Momentum Flux Convergence.Geophysical Research Letters,47(10).
MLA	Bastin S.,et al."Equatorial Deep Jets and Their Influence on the Mean Equatorial Circulation in an Idealized Ocean Model Forced by Intraseasonal Momentum Flux Convergence".Geophysical Research Letters 47.10(2020).