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Eddy analysis in the Eastern China Sea using altimetry data
  • ISSN号:1001-8166
  • 期刊名称:《地球科学进展》
  • 时间:0
  • 分类:P618.130.2[天文地球—矿床学;天文地球—地质学] S972.9[农业科学—捕捞与储运;农业科学—水产科学]
  • 作者机构:[1]School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China, [2]Institute of Geophysics and Planetary Physics, University of California, Los Angeles, California, USA, [3]Climate and Weather Disasters Collaborative Innovation Center, Nanjing University of Information Science & Technology, Nanjing 210044, China
  • 相关基金:The altimeter data are obtained from the AVISO Web site, and the CCMP sea surface wind vector data are obtained from the Asia Pacific Data Research Center (APDRC) Web site. Funding for this study is provided by the National Natural Science Foundation of China (Grant No. 41276033) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). CD appreciates the supports from the National Natural Science Foundation of China (Grant Nos. 41476022 and 41490643). Startup Foundation for Introducing Talent of Nanjing University of Intbrmation Science and Technology (2013r121, 2014r072), Program for Innovation Research and Entrepreneurship team in Jiangsu Province,National Basic Research Program of China (No. 2014CB745000), and National Programme on Global Change and Air-Sea Interaction (No. GASI- 03-IPOVAI-05). Yu Liu is supported by State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology Chinese Academy of Sciences (LTO1407).
中文摘要:

在东方中国海(ECS ) 的 mesoscale 旋涡的统计特征用测高法被分析从 1993 ~ 2010 的海表面高度异例(SSHA ) 数据。速度基于几何学的自动化旋涡察觉计划被采用从 SSHA 数据检测旋涡产生一个旋涡数据集合。大约 1,096 个旋涡(旋涡的一一生作为一个旋涡被数) 与比长或等于 4 个星期的一生在这个区域被识别。分别地,旋涡的平均一生和半径是 7 个星期和 55 km,在这个方面气旋的旋涡(CE ) 和逆旋风的旋涡(AE ) 之间没有重要差别。旋涡一生比在浅水里在深水里通常是更长的。大多数旋涡宣传沿着自台湾东面的菲律宾海流向日本的暖流(由自台湾东面的菲律宾海流向日本的暖流的 advected ) 向东北,与在它的东方方面上在它的西方的方面和 AE 上产生的更多的 CE。自台湾东面的菲律宾海流向日本的暖流运输的变化是为旋涡开始的主要机制之一,然而自台湾东面的菲律宾海流向日本的暖流的东方方面上的 AE 的产生(到开的海洋)也易于另外的因素,从开的海洋由于琉球岛和骚乱的存在卷例如风压力。

英文摘要:

Statistical characteristics of mesoscale eddies in the Eastern China Sea (ECS) are analyzed using altimetry sea surface height anomaly (SSHA) data from 1993 to 2010. A velocity geometry-based automated eddy detection scheme is employed to detect eddies from the SSHA data to generate an eddy data set. About 1,096 eddies (one lifetime of eddies is counted as one eddy) with a lifetime longer than or equal to 4 weeks are identified in this region. The average lifetime and radius of eddies are 7 weeks and 55 km, respectively, and there is no significant difference between cyclonic eddies (CEs) and anticyclonic eddies (AEs) in this respect. Eddies' lifetimes are generally longer in deep water than in shallow water. Most eddies propagate northeastward along the Kuroshio (advected by the Kuroshio), with more CEs generated on its western side and AEs on its eastern side. The variation of the Kuroshio transport is one of the major mechanisms for eddy genesis, however the generation of AEs on the eastern side of the Kuroshio (to the open ocean) is also subject to other factors, such as the wind stress curl due to the presence of the Ryukyu Islands and the disturbance from the open ocean.

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期刊信息
  • 《地球科学进展》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院
  • 主办单位:中国科学院资源环境科学与技术局 国家自然科学基金委员会地球科学部 中国科学院资源环境科学信息中心
  • 主编:傅伯杰
  • 地址:兰州市天水中路8号
  • 邮编:730000
  • 邮箱:adearth@lzb.ac.cn
  • 电话:0931-8762293
  • 国际标准刊号:ISSN:1001-8166
  • 国内统一刊号:ISSN:62-1091/P
  • 邮发代号:54-86
  • 获奖情况:
  • 国家“双效”期刊,甘肃社优秀期刊,中国数字化优秀期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:36043