IOCAS-IR  > 海洋环流与波动重点实验室
The effect of background flow shear on the topographic Rossby wave
Shi, YunLong1,2; Yang, DeZhou2,3,4; Yin, BaoShu2,3,4,5
2020-03-27
Source PublicationJOURNAL OF OCEANOGRAPHY
ISSN0916-8370
Pages9
Corresponding AuthorYang, DeZhou(yangdezhou@qdio.ac.cn)
AbstractDue to the ubiquitous steep continental shelf slope in the East China Sea, topographic Rossby waves are very common when the Kuroshio Current flows along the slope, and of great importance in the water and energy exchange between the open ocean and coastal sea. To examine the structural characteristics of topographic Rossby wave, we use stretching transform of time and space and perturbation method to get the analytic solution of potential vorticity equation with topography. For a given background flow v = v(0) + delta x, the effect of background flow shear is discussed. The main conclusions are drawn that background flow shear is required for the existence of solitary Rossby waves; for flow shear delta < 0 (delta > 0), anticyclonic (cyclonic) solitary Rossby waves exist and their zonal structure tilts eastward (westward); the phase speed of solitary Rossby waves is related to the amplitude and flow shear intensity; solitary Rossby waves are non-dispersive waves, and the width of solitary waves is inversely proportional to the intensity of the flow shear. Furthermore, these theoretical results are used to explain the propagation speeds and distributions of eddies along the Kuroshio Current in the East China Sea. In addition, these results could be applied to other areas with similar meridional current and topography.
KeywordTopographic Rossby wave Background flow shear KdV equation East China Sea Kuroshio
DOI10.1007/s10872-020-00546-6
Indexed BySCI
Language英语
Funding ProjectNational Key Research, Development Program of China[2017YFC1404000] ; National Key Research, Development Program of China[2016YFC1401601] ; National Key Research, Development Program of China[2017YFA0604102] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA19060203] ; National Natural Science Foundation of China[41576023] ; National Natural Science Foundation of China[41876019] ; Foundation for Innovative Research Groups of NSFC[41421005] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406401] ; National Key Research and Development Plan Sino-Australian Center for Healthy Coasts[2016YFE0101500] ; Aoshan Sci-Tec Innovative Project of Qingdao National Laboratory for Marine Science and Technology[2016ASKJ02] ; Strategic Pioneering Research Program of the Chinese Academy of Sciences[XDA11020104] ; Strategic Pioneering Research Program of the Chinese Academy of Sciences[XDA110203052] ; Open Fund of the Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Sciences[KLOCW1802] ; Startup Foundation for Introducing Talent of NUIST[2017r092]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000521874300001
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/166988
Collection海洋环流与波动重点实验室
Corresponding AuthorYang, DeZhou
Affiliation1.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China
2.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol, Qingdao 266000, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Shi, YunLong,Yang, DeZhou,Yin, BaoShu. The effect of background flow shear on the topographic Rossby wave[J]. JOURNAL OF OCEANOGRAPHY,2020:9.
APA Shi, YunLong,Yang, DeZhou,&Yin, BaoShu.(2020).The effect of background flow shear on the topographic Rossby wave.JOURNAL OF OCEANOGRAPHY,9.
MLA Shi, YunLong,et al."The effect of background flow shear on the topographic Rossby wave".JOURNAL OF OCEANOGRAPHY (2020):9.
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