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
Stream-coordinate structure of oceanic jets based on merged altimeter data

文献类型：期刊论文

作者Sun Che1; Zhang Linlin1,2; Yan Xiaomei1,2
刊名CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
出版日期2011
卷号29期号:1页码:1-9
关键词Oceanic Jet Stream-coordinate Absolute Dynamic Topography (Adt) Gravest Empirical Mode (Gem)
ISSN号0254-4059
DOI10.1007/s00343-011-9938-4
文献子类Article
英文摘要The jet structure of the Southern Ocean front south of Australia is studied in stream-coordinate with a new altimeter product-Absolute Dynamic Topography (ADT) from AVISO. The accuracy of the ADT data is validated with the mooring data from a two-year subantarctic-front experiment. It is demonstrated that the ADT is consistent with in-situ measurements and captures the meso-scale activity of the Antarctic Circumpolar Current (ACC). Stream-coordinate analysis of ADT surface geostrophic flows finds that ACC jets exhibit large spatio-temporal variability and do not correspond to particular streamfunction values. In the circumpolar scope ACC jets display a transient fragmented pattern controlled by topographic features. The poleward shift of jet in streamfunction space, as revealed by a streamwise correlation method, indicates the presence of meridional fluxes of zonal momentum. Such cross-stream eddy fluxes concentrate the broad ACC baroclinic flow into narrow jets. Combined with a recent discovery of gravest empirical mode (GEM) in the thermohaline fields, the study clarifies the interrelationship among front, jet and streamfunction in the Southern Ocean.; The jet structure of the Southern Ocean front south of Australia is studied in stream-coordinate with a new altimeter product-Absolute Dynamic Topography (ADT) from AVISO. The accuracy of the ADT data is validated with the mooring data from a two-year subantarctic-front experiment. It is demonstrated that the ADT is consistent with in-situ measurements and captures the meso-scale activity of the Antarctic Circumpolar Current (ACC). Stream-coordinate analysis of ADT surface geostrophic flows finds that ACC jets exhibit large spatio-temporal variability and do not correspond to particular streamfunction values. In the circumpolar scope ACC jets display a transient fragmented pattern controlled by topographic features. The poleward shift of jet in streamfunction space, as revealed by a streamwise correlation method, indicates the presence of meridional fluxes of zonal momentum. Such cross-stream eddy fluxes concentrate the broad ACC baroclinic flow into narrow jets. Combined with a recent discovery of gravest empirical mode (GEM) in the thermohaline fields, the study clarifies the interrelationship among front, jet and streamfunction in the Southern Ocean.
学科主题Marine & Freshwater Biology ; Oceanography
URL标识查看原文
语种英语
WOS记录号WOS:000286203200001
公开日期2012-07-03
源URL[http://ir.qdio.ac.cn/handle/337002/11610]  
专题海洋研究所_海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Wave, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Sun Che,Zhang Linlin,Yan Xiaomei. Stream-coordinate structure of oceanic jets based on merged altimeter data[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(1):1-9.
APA Sun Che,Zhang Linlin,&Yan Xiaomei.(2011).Stream-coordinate structure of oceanic jets based on merged altimeter data.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,29(1),1-9.
MLA Sun Che,et al."Stream-coordinate structure of oceanic jets based on merged altimeter data".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 29.1(2011):1-9.

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。