气候变化领域集成服务门户(CCPortal): The Seasonality of Submesoscale Energy Production; Content; and Cascade

CCPortal

DOI	10.1029/2020GL087388
	The Seasonality of Submesoscale Energy Production; Content; and Cascade
	Dong J.; Fox-Kemper B.; Zhang H.; Dong C.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:6
英文摘要	Submesoscale processes in the upper ocean vary seasonally, in tight correspondence with mixed layer thickness variability. Based on a global high-resolution MITgcm simulation, seasonal evaluation of strong vorticity and spectral analysis of the kinetic energy in the Kuroshio Extension System show the strongest submesoscales occur in March, implying a lag of about a month behind mixed layer thickness maximum in February. An analysis of spectral energy sources and transfers indicates that the seasonality of the submesoscale energy content is a result of the competition between the conversion of available potential energy into submesoscale kinetic energy via a buoyancy production/vertical buoyancy flux associated with mixed layer instability and nonlinear energy transfers to other scales associated with an energy cascade. The buoyancy production is seasonally in phase with the mixed layer depth, but the transfers of energy across scales makes energizing the reservoir of submesoscale kinetic energy lag behind by a month. ©2020. The Authors.
英文关键词	Buoyancy; Energy transfer; Kinetics; Ocean currents; Potential energy; Spectrum analysis; Energy cascade; Kuroshio Extension; Mixed layer; Nonlinear interactions; Submesoscale; Kinetic energy; mixed layer; potential energy; seasonality; upper ocean; Kuroshio Extension; Pacific Ocean
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/170560
作者单位	School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), ZhuhaiGuangdong, China; Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Dong J.,Fox-Kemper B.,Zhang H.,et al. The Seasonality of Submesoscale Energy Production; Content; and Cascade[J],2020,47(6).
APA	Dong J.,Fox-Kemper B.,Zhang H.,&Dong C..(2020).The Seasonality of Submesoscale Energy Production; Content; and Cascade.Geophysical Research Letters,47(6).
MLA	Dong J.,et al."The Seasonality of Submesoscale Energy Production; Content; and Cascade".Geophysical Research Letters 47.6(2020).