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Multi-core structure of the main part of the Kuroshio at G-PN section in the East China Sea

机译：东海G-PN段黑潮主体的多核构造

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摘要

Sectional velocity distribution of the East China Sea Kuroshio is one of the basic points in the study of the Kuroshio. Hydrographic temperature and salinity data at G-PN section in the East China Sea from June 1955 to November 2001 are collected and properly processed to calculate the geostrophic current using dynamic height method at the transect of the Kuroshio. After analysis of calculation results, the basic current structure of the Kuroshio in its main part is examined together with scalar estimate and characters of multi- core structure, and spacial-temporal variations of current cores' position. Main result shows that (1) single-core structure, double-core structure and multi-core structure are basic forms in axial part of the Kuroshio; (2) abvious temporal variations exist in current structure of the Kuroshio; (3) the current of structure of the Kuroshio has distinctly seasonal association. The number of current cores is on the high side of core numbers in average and multi-core stucture appears in fail mostly.
机译：东海黑潮的剖面速度分布是黑潮研究的基础之一。收集并正确处理了1955年6月至2001年11月东海G-PN段的水文温度和盐度数据，并使用动态高度法对黑潮断面进行了地转流计算。在对计算结果进行分析之后，研究了黑潮主体的基本电流结构，以及多核结构的标量估计和特征，以及当前核位置的时空变化。主要研究结果表明：（1）单核结构，双核结构和多核结构是黑潮轴向部分的基本形式; （2）黑潮当前结构存在明显的时间变化; （3）黑潮的结构具有明显的季节性关联。平均而言，当前内核数处于内核数的高端，而多核结构则大多出现故障。

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