Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective | |
Hao, Zhanjiu1,2,3; Xu, Zhenhua1,2,3,6; Feng, Ming4,7; Zhang, Peiwen1,2 ; You, Jia1,3; Yin, Baoshu1,2,3,5
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| 2023-10-01 | |
| 发表期刊 | DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
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| ISSN | 0967-0645 |
| 卷号 | 211页码:16 |
| 通讯作者 | Xu, Zhenhua([email protected]) ; Feng, Ming([email protected]) |
| 摘要 | Seasonal eddy kinetic energy (EKE) variability in the Banda Sea during 1993-2014 is studied from an energy budget perspective, based on the outputs of Ocean Forecasting Australian Model version 3. High EKE is confined within the upper 300 m of the western Banda Sea with the largest intensity exceeding 3 x 103 J/m2 in the northwest monsoon (NWM) season. In this strong EKE region during NWM, eddies derive almost two thirds of their kinetic energy from the direct wind power input (WP), with additional contributions from the barotropic (BT) and baroclinic instability (BC) of the background flow. Both WP and BT modulate the EKE seasonality and drive the peak energy during NWM, while BC strengthens in the southeast monsoon (SEM) season because of the intensified baroclinicity of the upper circulation. The westerly wind bursts associated with the Madden-Julian Oscillation (MJO), together with steep topography, facilitate more cyclonic eddy generation events in the western Banda Sea during NWM. During SEM, EKE becomes relatively moderate across the Banda Sea but with a regional peak to the southwest of the Buru Island, which can be attributed to island wake effect. Over the Banda Sea, WP, BT and BC contribute 74% (42%), 14% (19%) and 12% (39%) of total energy to EKE during NWM (SEM), respectively. The majority of EKE generated is diverged horizontally by pressure work and dissipated by turbulent viscosity, with dissipation depleting the most. This study highlights the importance of both monsoon and MJO wind forcing in generating EKE variability along the pathway of the Indonesian Throughflow. |
| 关键词 | Mesoscale eddy Banda Sea Seasonal variability Monsoon Indonesian Throughflow |
| DOI | 10.1016/j.dsr2.2023.105320 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences; National Natural Science Foundation of China; Laoshan Laboratory[XDB42000000]; Laoshan Laboratory[92058202]; Laoshan Laboratory[LSKJ202202502]; CAS Key Deployment Project of Center for Ocean Mega-Research of Science[COMS2020Q07]; CAS- CSIRO Jointly Project[133244KYSB20190031] |
| WOS研究方向 | Oceanography |
| WOS类目 | Oceanography |
| WOS记录号 | WOS:001106608000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS关键词 | FRESH-WATER DISCHARGE ; INDONESIAN SEAS ; INDIAN-OCEAN ; PACIFIC ; THROUGHFLOW ; CIRCULATION ; THERMOCLINE ; AUSTRALIA ; TRANSPORT ; PATHWAYS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/184014 |
| 专题 | 海洋环流与波动重点实验室 海洋生态与环境科学重点实验室 |
| 通讯作者 | Xu, Zhenhua; Feng, Ming |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.CSIRO Environm, Indian Ocean Marine Res Ctr, Crawley, WA 6009, Australia 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 7.CSIRO Environm, Indian Ocean Marine Res Ctr, Crawley, WA, Australia |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Hao, Zhanjiu,Xu, Zhenhua,Feng, Ming,et al. Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective[J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2023,211:16. |
| APA | Hao, Zhanjiu,Xu, Zhenhua,Feng, Ming,Zhang, Peiwen,You, Jia,&Yin, Baoshu.(2023).Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,211,16. |
| MLA | Hao, Zhanjiu,et al."Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 211(2023):16. |
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| 1-s2.0-S096706452300（25150KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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