Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Numerical study of the cross-shore range and the intensity of the Nearshore Kuroshio Branch Current (NKBC) | |
Yan, Jie1,2,3; Hou, Yijun1,2,3,4; Qi, Peng1,2,3,4; Hu, Fang1,2,3 | |
2021-10-23 | |
发表期刊 | JOURNAL OF OCEANOLOGY AND LIMNOLOGY |
ISSN | 2096-5508 |
页码 | 18 |
通讯作者 | Hou, Yijun(yjhou@qdio.ac.cn) ; Qi, Peng(pqi@qdio.ac.cn) |
摘要 | Temperature and salinity data, obtained by two snapshot surveys during 19-20 May 2019 and 12-25 September 2019 across the East China Sea (ECS) shelf, revealed that the Kuroshio intrusion to the north of 28 degrees N comprised the Nearshore Kuroshio Branch Current (NKBC) and the Offshore Kuroshio Branch Current (OKBC) at the bottom of the ECS during spring 2019, and that the NKBC was weak during autumn 2019. The Regional Ocean Model System was used to reproduce the distribution of water masses and the current structure over the continental shelf of the ECS during 2019. Analyses of the momentum balances indicated that the cross-shore range and the intensity of the NKBC were determined by the combination of the geostrophic flow and bottom Ekman current. In comparison with that in May 2019, a weakened shoreward bottom Ekman current and an increased offshoreward geostrophic flow caused the disappearance of cross-shore range of the NKBC in September 2019. Meanwhile, a diminished northeastward alongshore geostrophic flow in September 2019 also weakened the intensity of the NKBC. Sensitivity experiments indicated that a strong southwestward wind can push the western (eastern) boundary of the NKBC further offshoreward (shoreward) by increasing (decreasing) the offshore geostrophic flow (bottom Ekman current). A weak Taiwan Warm Current (TWC) can move the eastern boundary of the NKBC shoreward by decreasing the onshore bottom Ekman current. A weak Kuroshio Current (KC) can move the eastern boundary of the NKBC shoreward by increasing the offshoreward geostrophic flow. Furthermore, a strong (weak) southwestward wind, weak (strong) TWC, and strong (weak) KC can diminish (enhance) the intensity of the NKBC. Of the three factors, the wind plays the major role in influencing the NKBC. |
关键词 | East China Sea Nearshore Kuroshio Branch Current (NKBC) Regional Ocean Model System (ROMS) ocean modeling |
DOI | 10.1007/s00343-021-0291-y |
收录类别 | SCI |
语种 | 英语 |
资助项目 | NSFC Shiptime Sharing Project[NORC2019-02] ; High Performance Computing Center at IOCAS[41749902] |
WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
WOS类目 | Limnology ; Oceanography |
WOS记录号 | WOS:000710617100006 |
出版者 | SCIENCE PRESS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/176738 |
专题 | 海洋环流与波动重点实验室 |
通讯作者 | Hou, Yijun; Qi, Peng |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China |
第一作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
通讯作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
推荐引用方式 GB/T 7714 | Yan, Jie,Hou, Yijun,Qi, Peng,et al. Numerical study of the cross-shore range and the intensity of the Nearshore Kuroshio Branch Current (NKBC)[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021:18. |
APA | Yan, Jie,Hou, Yijun,Qi, Peng,&Hu, Fang.(2021).Numerical study of the cross-shore range and the intensity of the Nearshore Kuroshio Branch Current (NKBC).JOURNAL OF OCEANOLOGY AND LIMNOLOGY,18. |
MLA | Yan, Jie,et al."Numerical study of the cross-shore range and the intensity of the Nearshore Kuroshio Branch Current (NKBC)".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2021):18. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Yan2021_Article_Nume(6097KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论