Progress of studies in China from July 2010 to May 2015 on the influence of the Kuroshio on neighboring Chinese seas and

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Progress of studies in China from July 2010 to May 2015 on the influence of the Kuroshio on neighboring Chinese seas and the Ryukyu Current YUAN Yaochu1*, ZHU Xiaohua1, ZHOU Feng1 1 State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic

Administration, Hangzhou 310012, China Received 3 August 2015; accepted 28 September 2015 ©The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg 2015

Abstract The influence of the Kuroshio on neighboring Chinese seas and the Ryukyu Current is a very important subject of interest in physical oceanography. To deeply explain the research progress made by Chinese scientists from July 2010 to May 2015, the following three aspects are reviewed in this paper. The first concerns the Kuroshio intrusion into the South China Sea (SCS) and its circulation around the Luzon Strait. There are two very important points to be explained: the seasonal and inter-annual variation of the Kuroshio intrusion and the mechanisms of the Kuroshio intrusion and the influence of the Kuroshio on currents in the Luzon Strait and circulation in the northern SCS. The second concerns the variability of the Kuroshio and its interaction with the East China Sea (ECS). There are following four interesting topics to be explained: an overview of studies on the Kuroshio in the ECS; the Kuroshio intrusion into the ECS, water exchange, and dynamic impacts; the downstream increase of nutrient transport by the Kuroshio; and the application of satellite remote sensing on terrestrial material transport by the Kuroshio intrusion into the ECS. Third, the interaction between the Ryukyu Current and Kuroshio in the ECS are also discussed. Finally, the main results are summarized and areas of further study are simply discussed. Key words: Kuroshio intrusion, circulation, South China Sea, East China Sea, currents in Luzon Strait, Ryukyu Current Citation: Yuan Yaochu, Zhu Xiaohua, Zhou Feng. 2015. Progress of studies in China from July 2010 to May 2015 on the influence of the Kuroshio on neighboring Chinese seas and the Ryukyu Current. Acta Oceanologica Sinica, 34(12): 1–10, doi: 10.1007/s13131-015-0771-z

1  Introduction Recently there have been many studies regarding the influence of the Kuroshio on neighboring Chinese seas and the Ryukyu Current, which is a very important subject of interest in the field of physical oceanography. For example, the paper “The study of the Kuroshio and the interaction with currents in its neighboring Chinese Seas and the Ryukyu Current during periods from July of 2006 to June of 2010” reviewed by Yuan et al. (2011) was a paper in the China National Report on Physical Sciences of the Oceans for the 25th General Assembly of IUGG Melbourne, Australia, 28 June–7 July 2011. In the paper by Yuan et al. (2011), the following four aspects were reviewed. First, the Kuroshio near the Luzon Strait and east of Taiwan was analyzed from the following three perspectives: (1) numerical computed results based on observed currents and hydrographic