[E] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-OS Ocean Sciences & Ocean Environment

[A-OS08] ECS-Kuroshio and Ryukyu Current System -Observation, modeling and theory-

Wed. May 29, 2019 3:30 PM - 5:00 PM 105 (1F)

convener:Hirohiko Nakamura(Kagoshima University, Faculy of Fisheries), Xiao-Hua Zhu(Second Institute of Oceanography), Chairperson:Jae-Hun Park(Inha University), Hirohiko Nakamura(Kagoshima University)

The East China Sea (ECS) is separated from the North Pacific basin by the Ryukyu Islands. On each side of the Ryukyu Islands, there lies two western boundary currents -the Kuroshio on the northwest and the Ryukyu Current on the southeast. These two currents play an important role in the global substance cycle and have a remarkable impact on the climate and adjacent marginal seas. Our knowledge of the Kuroshio and the Ryukyu Current's dynamics, variability, and impact has advanced significantly over the last decade, because of recent international collaborative field programs, improvement in satellite measurements, and advancement in high-resolution numerical models. This session seeks contributions from ECS-Kuroshio and Ryukyu Current studies and will cover a wide range of topics of observation, modeling and theory. The dynamics of the Kuroshio and the Ryukyu Current's variability at all spatio-temporal scales, the influence of the Kuroshio on typhoons and climate, the interactions among the Kuroshio, Ryukyu Current and eddies, internal waves including near-internal waves and their interactions with background currents, and the water mass exchanges through the gaps between the Ryukyu Islands are welcome to be discussed in this session.

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Introduction (3:30 PM - 3:35 PM)

3:35 PM - 3:55 PM

[AOS08-06] Separating Small-Scale Oceanic Internal Waves and Vortical Motions

★Invited Papers

*Ren-Chieh Lien¹ (1.University of Washington, Seattle, WA, USA)

3:55 PM - 4:10 PM

[AOS08-07] Structure and variability of the Kuroshio current in the Tokara Strait

*Zhao-Jun Liu¹, Hirohiko Nakamura², Xiao-Hua Zhu¹, Ayako Nishina², Xinyu Guo³, Menghong Dong¹ (1.Second Institute of Oceanography, China, 2.Kagoshima University, Japan, 3.Ehime University, Japan)

4:10 PM - 4:25 PM

[AOS08-08] Near-inertial waves advected by the Kuroshio from observation and simulation

*CHANHYUNG JEON¹, Jae-Hun Park¹, Hirohiko Nakamura², Ayako Nishina², Xiao-Hua Zhu³, Dong Guk Kim⁴, Hong Sik Min⁴, Sok Kuh Kang⁴, Hanna Na⁵, Naoki Hirose⁶, Youngseok Choi¹ (1.Inha University, 2.Kagoshima University, 3.Second Institute of Oceanography, 4.Korea Institute of Ocean Science and Technology, 5.Seoul National University, 6.Kyushu University)

4:25 PM - 4:40 PM

[AOS08-09] Turbulent mixing and near-inertial internal waves induced by the Kuroshio over seamounts in the Tokara Strait

*Takeyoshi Nagai¹, Daisuke Hasegawa², Eisuke Tsutsumi³, Hirohiko Nakamura⁴, Ayako Nishina⁴, Tomoharu Senjyu³, Takahiro Endoh³, Takeshi Matsuno³, Ryuichiro Inoue⁵, Amit Tandon⁶ (1.Department of Ocean Sciences, Tokyo University of Marine Science and Technology, 2.Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 3.Kyushu University, Research Institute for Applied Mechanics, 4.Faculty of Fisheries Kagoshima University, 5.Ocean Circulation Research Group, Japan Agency for Marine-Earth Science and Technology, 6.Mechanical Engineering Department & SMAST, University of Massachusetts Dartmouth)

4:40 PM - 4:55 PM

[AOS08-10] Microstructure and mooring observations of enhanced mixing in the Kerama Gap

*Ryuichiro Inoue¹, Hirohiko Nakamura², Takahiro Tanaka³, Shinzou Fujio⁴, Daigo Yanagimoto⁴, Ichiro Yasuda⁴ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kagoshima University, Faculy of Fisheries, 3.Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 4.The University of Tokyo, Atmosphere and Ocean Research Institute)

Discussion (4:55 PM - 5:00 PM)

Session information