[A-CG57] Dynamics of Oceanic and Atmospheric Waves, Vortices, and Circulations

Mon. May 25, 2026 9:00 AM - 10:30 AM 201A (International Conference Hall, Makuhari Messe)

Chairperson:Onuki Yohei(Research Institute for Applied Mechanics, Kyushu University), Matsuta Takuro(Faculty of Env.Earth Science, Hokkaido University)

This session re-examines the essential role of oceanic and atmospheric dynamics, which aims at abstracting general principles from observed phenomena and constructing a system of mathematical models, thereby leading to the understanding, prediction, and parameterization of those phenomena. This circular approach provides perspectives for advancing research across various areas such as turbulence, waves, eddies, mean flows, jet-front systems, boundary processes, general circulations, ocean-atmosphere coupling, and their mutual interactions. Furthermore, we anticipate the novel application of various theoretical tools such as resonance, nonlinear interaction, stability analysis, spectral analysis, probability, statistics, and dynamical systems. We solicit presentations across observational, experimental, numerical, and theoretical studies of oceanic and atmospheric dynamics and on exploratory use of new ideas and methods, including machine learning. We also welcome presentations on interdisciplinary studies in fields such as ecosystems, climate, and environment, and intriguing but dynamically unexplained data. We aim for this collective effort to be a driving force for new scientific concepts and breakthroughs.

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9:00 AM - 9:15 AM

[ACG57-01] Ocean waves detected by submarine fiber-optic cables through distributed acoustic sensing

★Invited Papers

*Takashi Tonegawa¹, Eiichiro Araki¹, Hou-Sheng Cheng² (1. Japan Agency for Marine-Earth Science and Technology, 2. National Taiwan University)

9:15 AM - 9:30 AM

[ACG57-02] On the Paradox of Munk’s Abyssal Upwelling Theory in the Indo-Pacific

*Lei HAN¹ (1. Xiamen University Malaysia)

9:30 AM - 9:45 AM

[ACG57-03] A dynamically constrained parameterization of near-field tidal mixing at low latitudes

*Toshiyuki Hibiya^1,2,3, Yuki Tanaka¹ (1. Tokyo University of Marine Science and Technology, 2. Japan Agency for Marine-Earth Science and Technology, 3. The University of Tokyo)

9:45 AM - 10:00 AM

[ACG57-04] Temporal variability of energetic turbulence on a seamount flank forced by tidal and geostrophic currents

*Anne Takahashi¹, Ren-Chieh Lien², Eric Kunze³, Anda Vladoiu², Mariona Claret³, Barry Ma², Hirohiko Nakamura⁴, Ayako Nishina⁴, Eisuke Tsutsumi⁴, Ryuichiro Inoue⁵, Takeyoshi Nagai⁶, Takahiro Endoh⁷, Sachihiko Itoh¹ (1. Atmosphere and Ocean Research Institute, The University of Tokyo, 2. Applied Physics Laboratory, University of Washington, 3. NorthWest Research Associates, 4. Kagoshima University, 5. Japan Agency for Marine-Earth Science and Technology, 6. Tokyo University of Marine Science and Technology, 7. Research Institute for Applied Mechanics, Kyushu University)

10:00 AM - 10:15 AM

[ACG57-05] Dominance of Higher-Order Near-Inertial Internal Wave Modes in the Abyssal Japan Sea

*Akie Sakai¹, Tomoharu Senjyu² (1. National Institute of Technology, Oshima College, 2. Research Institute for Applied Mechanics, Kyushu University)

10:15 AM - 10:30 AM

[ACG57-06] Bottom-trapped topographic Rossby waves induced by a warm-core ring on the offshore slope of a trench in the western North Pacific Ocean

*Takeru Ueno¹, Daigo Yanagimoto¹, Shinzou Fujio¹ (1. Atmosphere and Ocean Institute, The University of Tokyo)

Session information