The characteristics of spontaneous near-inertial wave generation from an anticyclonic mesoscale eddy
文献类型：CNKI期刊论文
| 作者 | Bo ZHAO ; Zhenhua XU; Qun LI; Wenjia MIN; Yang WANG; Baoshu YIN
|
| 发表日期 | 2022-03-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | near-inertial waves(NIWs) anticyclonic mesoscale eddy spontaneous generation |
| 英文摘要 | The generation and propagation characteristics of near-inertial waves(NIWs) generated spontaneously from a quasi-geostrophic anticyclonic mesoscale eddy in a rotating and stratified fluid were investigated by three-dimensional numerical modeling. NIWs are generated over a long time interval as a forced response to balanced baroclinic mesoscale eddies. For such eddies, NIW generation from balanced flow is an inevitable result as the evolution of eddies. Moreover, the baroclinicity of mesoscale eddies is an essential condition for this NIW generation mechanism. The spontaneously generated NIWs radiate horizontally toward the eddy center and propagate upward in vertical direction. The forcing of the NIWs moves downward along the eddy axis from the location of maximum temperature anomaly of the mesoscale eddy. The moving speed of the forcing is independent on the balanced mesoscale eddies but is determined by the ratio of buoyancy to inertial frequency. When the forcing reaches the bottom of the mesoscale eddy, the spontaneous NIW generation process terminates. NIW intensity in this spontaneous generation process is strengthened with the increase of the Rossby and Froude numbers. Further research to gain a solid understanding of the role of the Rossby and Froude numbers is necessary for the parameterization of spontaneous NIW generation from quasi-geostrophic mesoscale eddies in general circulation model. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Nos. XDA22050202, XDB42000000) ; the National Natural Science Foundation of China (Nos. 92058202, 91858103) ; the National Key Research and Development Program of China (Nos. 2017YFA0604102, 2016YFC1401404) ; the CAS Key Research Program of Frontier Sciences (No. QYZDB-SSW-DQC024) ; the Key Deployment Project of Centre for Ocean Mega-Research of Science,Chinese Academy of Sciences (No. COMS2020Q07) ; jointly supported by the Chinese Academy of Sciences (CAS) and Commonwealth Scientific and Industrial Research Organisation (CSIRO)(No. 133244KYSB20190031) |
| 卷 | v.40期:02页:29-43 |
| 语种 | 英文; |
| 分类号 | P731.2 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187478]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CollegeofEarthandPlanetarySciences,UniversityofChineseAcademyofSciences 2.CASEngineeringLaboratoryforMarineRanching,InstituteofOceanology,ChineseAcademyofSciences 3.PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.PolarResearchInstituteofChina 5.CASKeyLaboratoryofOceanCirculationandWaves,InstituteofOceanologyChineseAcademyofSciences 6.CenterforOceanMega-Science,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Bo ZHAO,Zhenhua XU,Qun LI,et al. The characteristics of spontaneous near-inertial wave generation from an anticyclonic mesoscale eddy. 2022. |
入库方式： OAI收割
来源：海洋研究所
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