基于CMEMS数据的黑潮性质研究
首发时间:2019-08-13
摘要:黑潮(Kuroshio)作为太平洋西边界流最重要的一支,对中国、日本、韩国等地的气候、地质特征照造成影响,因此对黑潮的研究被各国科学家重视。论文基于COPERNICUS MARINE ENVIRONMENT MONITORING SERVICE提供的浮标观测及再分析数据,通过对黑潮两个典型断面(P-N断面、137 E断面)夏(2018年7月)及秋(2018年10-11月)相关问题进行研究,并尝试对该洋流性质在时空关系上作出一定的解释,并据此推测黑潮在典型断面的运输通量。结果显示P-N断面及137 E断面在夏秋季节之间温度、盐度、位势密度、地转流速有显著变化,并且在夏季黑潮运输通量大于秋季运输通量。在两个断面中黑潮垂向性质不相同,可能与区域的海水温度分布有关。
关键词: 黑潮 P-N断面 137 E断面 海流性质 运输通量
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The study of Kuroshio current based on CMEMS data
Abstract:As one of the most important western boundary currents in Pacific Ocean, Kuroshio has a great influence on climate, geology characteristics in China, Japan and Korea, thus scientist around the world attach importance to it. This paper is based on buoy data provided from COPERNICUS MARINE ENVIRONMENT MONITORING SERVICE, then analyzes related questions between summer (that is 2018.7) and autumn (that is 2018.10-11) in typical sections (P-N section and 137 E section) of Kuroshio, trying to give and explanation to current patterns on the relation between time and space. The results reveal that there is a great difference between P-N section and 137 E section in summer The study of Kuroshio current based on CMEMS dataand autumn at the aspects of temperature, salinity, potential density and geostrophic velocity, also, the transport flux of Kuroshio in summer overweight it in autumn. Meanwhile, the vertical characteristic is not the same between P-N section and 137 E section, probably due to the thermal wind.
Keywords: Kuroshio P-N section 137 E section current characteristic transport flux
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