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Journal of Oceanography

, Volume 63, Issue 2, pp 309–325 | Cite as

Intrusion of Kuroshio water onto the continental shelf of the East China Sea

  • Joon-Soo LeeEmail author
  • Matsuno Takeshi
Original Papers

Abstract

As a fundamental study to evaluate the contribution of the Kuroshio to primary production in the East China Sea (ECS), we investigated the seasonal pattern of the intrusion from the Kuroshio onto the continental shelf of the ECS and the behavior of the intruded Kuroshio water, using the RIAM Ocean Model (RIAMOM). The total intruded volume transport across the 200m isobath line was evaluated as 2.74 Sv in winter and 2.47 Sv in summer, while the intruded transport below 80m was estimated to be 1.32 Sv in winter and 1.64 Sv in summer. Passive tracer experiments revealed that the main intrusion from the Kuroshio to the shelf area of the ECS, shallower than 80m, takes place through the lower layer northeast of Taiwan in summer, with a volume transport of 0.19 Sv. Comparative studies show several components affecting the intrusion of the Kuroshio across the 200 m isobath line. The Kuroshio water intruded less onto the shelf compared with a case without consideration of tide-induced bottom friction, especially northeast of Taiwan. The variations of the transport from the Taiwan Strait and the east of Taiwan have considerable effects on the intrusion of the Kuroshio onto the shelf.

Keywords

Intrusion of Kuroshio water outflow from the Taiwan Strait East China Sea continental shelf 

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Copyright information

© The Oceanographic Society of Japan/TERRAPUB/Springer 2007

Authors and Affiliations

  1. 1.Department of Earth System Science and TechnologyKyushu UniversityKasuga-Koen, KasugaJapan
  2. 2.Research Institute for Applied MechanicsKyushu UniversityKasuga-Koen, KasugaJapan

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