Energetics Analysis of the Eddy-Kuroshio Interaction East of Taiwan
文献类型：期刊论文
| 作者 | Yan, Xiaomei2,3,4; Kang, Dujuan1; Pang, Chongguang2,3,4; Zhang, Linlin2,3,4; Liu, Hongwei2,3,4 |
| 刊名 | JOURNAL OF PHYSICAL OCEANOGRAPHY
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 52期号:4页码:647-664 |
| 关键词 | North Pacific Ocean Eddies Mesoscale processes |
| ISSN号 | 0022-3670 |
| DOI | 10.1175/JPO-D-21-0198.1 |
| 通讯作者 | Yan, Xiaomei(yanxiaomei@qdio.ac.cn) |
| 英文摘要 | The three-dimensional energetics evolution during eddy-Kuroshio interactions east of Taiwan is systematically investigated in a time-dependent theoretical framework using outputs from an eddy-resolving ocean general circulation model. Composite analyses are conducted based on 17 anticyclonic eddies (AEs) and 19 cyclonic eddies (CEs). These westward propagating mesoscale eddies impinge on the Kuroshio at similar to 22 degrees N, similar to 124.5 degrees E and interact with the Kuroshio with a mean duration of similar to 70 days. During the interaction, all the eddy energy reservoirs and eddy-mean flow energy conversions exhibit complex spatial-temporal variations. In particular, during the strong interaction period (days 18-54), both AEs and CEs are deformed into an elliptic shape, with the major axis in the northeast-southwest direction due to the squeeze of surrounding eddies, and obtain kinetic energy from the mean flow. Overall, the eddies are weakened gradually after encountering the Kuroshio, with the energy of CEs decreased more rapidly than that of AEs. The eddies decay through two pathways: transferring similar to 8% of eddy available potential energy (EPE) to the mean flow, and converting similar to 64% of EPE to eddy kinetic energy (EKE) via the baroclinic instability with the majority of the EKE finally dissipated. The results suggest that although the time-dependent energy conversion terms vanish upon time averaging, they play important but opposite roles in the evolution of AEs and CEs. The analysis in this work is on the synoptic and intraseasonal time scales; hence, it provides a basis for understanding the long-term variations of the eddy-Kuroshio interaction and associated climate change. |
| 资助项目 | Shandong Provincial Natural Science Foundation[ZR2021MD092] ; National Natural Science Foundation of China[42122041] ; National Natural Science Foundation of China[41776021] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42010105] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000797940200007 |
| 出版者 | AMER METEOROLOGICAL SOC |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/179422]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Yan, Xiaomei |
| 作者单位 | 1.Rutgers State Univ, Dept Environm Sci, New Brunswick, NJ USA 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Xiaomei,Kang, Dujuan,Pang, Chongguang,et al. Energetics Analysis of the Eddy-Kuroshio Interaction East of Taiwan[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2022,52(4):647-664. |
| APA | Yan, Xiaomei,Kang, Dujuan,Pang, Chongguang,Zhang, Linlin,&Liu, Hongwei.(2022).Energetics Analysis of the Eddy-Kuroshio Interaction East of Taiwan.JOURNAL OF PHYSICAL OCEANOGRAPHY,52(4),647-664. |
| MLA | Yan, Xiaomei,et al."Energetics Analysis of the Eddy-Kuroshio Interaction East of Taiwan".JOURNAL OF PHYSICAL OCEANOGRAPHY 52.4(2022):647-664. |
入库方式： OAI收割
来源：海洋研究所
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