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1991-2011年东海黑潮PN断面流结构与季节变化分析

孔彬 陈红霞 袁业立

孔彬, 陈红霞, 袁业立. 1991-2011年东海黑潮PN断面流结构与季节变化分析[J]. 海洋学报, 2016, 38(5): 14-26. doi: 10.3969/j.issn.0253-4193.2016.05.002
引用本文: 孔彬, 陈红霞, 袁业立. 1991-2011年东海黑潮PN断面流结构与季节变化分析[J]. 海洋学报, 2016, 38(5): 14-26. doi: 10.3969/j.issn.0253-4193.2016.05.002
Kong Bin, Chen Hongxia, Yuan Yeli. Analysis of current structure and seasonal variation at PN Section of the East China Sea Kuroshio during 1991-2011[J]. Haiyang Xuebao, 2016, 38(5): 14-26. doi: 10.3969/j.issn.0253-4193.2016.05.002
Citation: Kong Bin, Chen Hongxia, Yuan Yeli. Analysis of current structure and seasonal variation at PN Section of the East China Sea Kuroshio during 1991-2011[J]. Haiyang Xuebao, 2016, 38(5): 14-26. doi: 10.3969/j.issn.0253-4193.2016.05.002

1991-2011年东海黑潮PN断面流结构与季节变化分析

doi: 10.3969/j.issn.0253-4193.2016.05.002

Analysis of current structure and seasonal variation at PN Section of the East China Sea Kuroshio during 1991-2011

  • 摘要: 基于日本海洋信息中心提供的东海黑潮PN断面CTD资料,本文采用动力高度法计算了1991-2011年间90个航次的断面流速,并对流场结构、最大流速、流幅和流量进行了统计分析。结果表明:东海黑潮PN断面流场存在单核、双核、多核3种结构;其中单核结构出现的概率为50%,双核结构为39%,多核结构为11%。东海黑潮的流结构存在显著的季节变化:秋季多核结构所占的比重为4个季节最大,平均流核数最多;冬季主要为单核结构,平均流核数最少;夏季和春季则没有明显的倾向性,单核、双核、多核3种结构出现概率相近,平均流核数介于秋季和冬季之间。其次东海黑潮的流量也存在显著的季节变化:冬季与夏季最强,秋季最小,春季居中。最后东海黑潮的最大流速和流幅也存在季节变化:夏季最大,秋季最小,春季和冬季居中。
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  • 收稿日期:  2015-07-13

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