Characteristics of oceanic mesoscale variabilities associated with the inverse kinetic energy cascade

doi:10.1007/s13131-021-1814-2

IOCAS-IR > 海洋环流与波动重点实验室

	Characteristics of oceanic mesoscale variabilities associated with the inverse kinetic energy cascade
	Li, Mengmeng 1,2; Liu, Zhiliang 3,4; Li, Jianing 5,6; Pang, Chongguang 1,6
	2021-07-01
发表期刊	ACTA OCEANOLOGICA SINICA
ISSN	0253-505X
卷号	40 期号:7 页码:42-57
通讯作者	Liu, Zhiliang(zhlliu3897@hevttc.edu.cn)
摘要	Oceanic geostrophic turbulence theory predicts significant inverse kinetic energy (KE) cascades at scales larger than the energy injection wavelength. However, the characteristics of the mesoscale variabilities associated with the inverse KE cascade in the real oceans have not been clear enough up to now. To further examine this problem, we analyzed the spectral characteristics of the oceanic mesoscale motions over the scales of inverse KE cascades based on high-resolution gridded altimeter data. The applicability of the quasigeostrophic (QG) turbulence theory and the surface quasigeostrophic (SQG) turbulence theory in real oceans is further explored. The results show that the sea surface height (SSH) spectral slope is linearly related to the eddy-kinetic-energy (EKE) level with a high correlation coefficient value of 0.67. The findings also suggest that the QG turbulence theory is an appropriate dynamic framework at the edge of high-EKE regions and that the SQG theory is more suitable in tropical regions and low-EKE regions at mid-high latitudes. New anisotropic characteristics of the inverse KE cascade are also provided. These results indicate that the along-track spectrum used by previous studies cannot reveal the dynamics of the mesoscale variabilities well.
关键词	mesoscale eddy inverse cascade scalar wavenumber spectrum spectral slope anisotropy
DOI	10.1007/s13131-021-1814-2
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2016YFC0301203] ; National Key R&D Program of China[2019YFC1407903] ; Natural Science Foundation of Hebei Province[D2019407046] ; Hebei Science and Technology Project[19273301D] ; NSFC-Shangdong Province Joint Fund[U1406401]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000693075700004
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/176365
专题	海洋环流与波动重点实验室
通讯作者	Liu, Zhiliang
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Hebei Normal Univ Sci & Technol, Marine Sci Res Ctr, Qinhuangdao 066004, Hebei, Peoples R China 4.Hebei Normal Univ Sci & Technol, Hebei Key Lab Ocean Dynam Resources & Environm, Qinhuangdao 066004, Hebei, Peoples R China 5.Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China 6.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China
第一作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Li, Mengmeng,Liu, Zhiliang,Li, Jianing,et al. Characteristics of oceanic mesoscale variabilities associated with the inverse kinetic energy cascade[J]. ACTA OCEANOLOGICA SINICA,2021,40(7):42-57.
APA	Li, Mengmeng,Liu, Zhiliang,Li, Jianing,&Pang, Chongguang.(2021).Characteristics of oceanic mesoscale variabilities associated with the inverse kinetic energy cascade.ACTA OCEANOLOGICA SINICA,40(7),42-57.
MLA	Li, Mengmeng,et al."Characteristics of oceanic mesoscale variabilities associated with the inverse kinetic energy cascade".ACTA OCEANOLOGICA SINICA 40.7(2021):42-57.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Li2021_Article_Chara（3891KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	浏览