Seasonal variations of eddy kinetic energy flux in the South Indian Countercurrent region
文献类型：CNKI期刊论文
| 作者 | CHEN Zhongqian; WANG Faming; ZHENG Jian; YANG Yuxing |
| 发表日期 | 2020-09-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | mesoscale eddies spectral kinetic energy fl ux inverse cascade South Indian Countercurrent(SICC) |
| 英文摘要 | The inverse cascade flux of kinetic energy(KE) and its length scale in the South Indian Countercurrent(SICC) region were investigated using 24-year satellite altimeter daily data from 1993–2016. The evolution of the eddy life cycle in the SICC was presented systemically. It was found that the arrest and inject scales of inverse cascade were within the baroclinic most unstable scale and observed energy-containing eddy scale. The seasonal cycle of the arrest scale, inject scale, and amplitude of the inverse cascade were compared with the eddy kinetic energy seasonal cycle, which revealed a 1.5-month lag of the eddy kinetic energy to the vertical shear of zonal velocity, implying the existence of nonlinear processes during the eddy growth phase. Meanwhile, the anisotropy of the inverse cascade indicated that kinetic energy might be transferred from meridional motions to zonal motions, which is probably caused by β effect. These results would be beneficial for a better understanding of the KE transfer processes in the SICC region. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (Nos. 41776035 ; 41676007) ; the Funds for Creative Research Groups of China (No. 41421005) |
| 卷 | v.38期:05页:123-134 |
| 语种 | 英文; |
| 分类号 | P732 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188012]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.FunctionLaboratoryforOceanDynamicsandClimate,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 2.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences 3.UniversityofChineseAcademyofSciences 4.CenterforOceanMega-Science,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | CHEN Zhongqian,WANG Faming,ZHENG Jian,et al. Seasonal variations of eddy kinetic energy flux in the South Indian Countercurrent region. 2020. |
入库方式： OAI收割
来源：海洋研究所
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