中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋环流与波动重点实验室
The North Equatorial Current/Undercurrent volume transport and its 40-day variability from a mooring array along 130 degrees E

文献类型：期刊论文

作者Yuan, Xin1,2,3; Wang, Qingye1,3,4; Feng, Junqiao1,3,4; Hu, Dunxin1,3,4
刊名JOURNAL OF OCEANOLOGY AND LIMNOLOGY
出版日期2021-06-14
页码17
关键词intraseasonal variability (ISV) North Equatorial Current Undercurrent (NEC NEUC) transport Madden-Julian Oscillation (MJO)
ISSN号2096-5508
DOI10.1007/s00343-020-0289-x
通讯作者Wang, Qingye(wangqy@qdio.ac.cn) ; Hu, Dunxin(dxhu@qdio.ac.cn)
英文摘要Traditionally, the estimated volume transport of the North Equatorial Current/Undercurrent (NEC/NEUC) is based on geostrophic equations and/or model results; however, direct observational evidence has not been acquired. We focused on one-year mooring observation data collected along 130 degrees E and calculated the NEC/NEUC volume transport and explore its variability. Results show that the mean NEC and NEUC volume transports calculated from the mean velocity structures in the upper 950 m are 39 Sv and 6 Sv, respectively. Analysis of daily mooring data indicated that the volume transport of the NEC is approximately 52 (+/- 14) Sv and the volume transport of the NEUC is approximately 18 (+/- 13) Sv. A significant 40-day variation existed for the volume transport of both the NEC and NEUC. Overall, the intraseasonal variability (ISV) of the NEC is vertically coherent with that of the NEUC. Observations indicated that the NEUC has three cores centered at approximately 8.5 degrees N (similar to 500 m), 12.5 degrees N (similar to 700 m), and 17.5 degrees N (similar to 900 m), of which the middle core (12.5 degrees N) is the strongest. The 40-day variability of the NEC and NEUC is related to the variability of local wind stress curl anomalies among various Madden-Julian Oscillation (MJO) phases. When local wind field generates a negative (positive) wind stress curl anomaly, a weaker NEC (NEUC) and stronger NEUC (NEC) would occur.
资助项目National Natural Science Foundation of China[41576014] ; National Natural Science Foundation of China[41976011]
WOS研究方向Marine & Freshwater Biology ; Oceanography
语种英语
WOS记录号WOS:000661406900007
出版者SCIENCE PRESS
源URL[http://ir.qdio.ac.cn/handle/337002/176927]  
专题海洋研究所_海洋环流与波动重点实验室
通讯作者Wang, Qingye; Hu, Dunxin
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
2.Univ Chinese Acad 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, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Xin,Wang, Qingye,Feng, Junqiao,et al. The North Equatorial Current/Undercurrent volume transport and its 40-day variability from a mooring array along 130 degrees E[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021:17.
APA Yuan, Xin,Wang, Qingye,Feng, Junqiao,&Hu, Dunxin.(2021).The North Equatorial Current/Undercurrent volume transport and its 40-day variability from a mooring array along 130 degrees E.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,17.
MLA Yuan, Xin,et al."The North Equatorial Current/Undercurrent volume transport and its 40-day variability from a mooring array along 130 degrees E".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2021):17.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

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。