Atmospheric and Hydrospheric Sciences (A)
Session Sub-category Ocean Sciences & Ocean Environment(OS)
Session ID A-OS21
Title Coastal ocean circulation and material cycle
Short Title Coastal ocean
Main Convener Name Taira Nagai
Affiliation Japan Fisheries Research and Education Agency
Co-Convener 1 Name Toshimi Nakajima
Affiliation Atmosphere and Ocean Research Institute, The University of Tokyo
Co-Convener 2 Name Mitsuko Hidaka
Affiliation Kagoshima University
Co-Convener 3 Name Yusuke Ushijima
Affiliation Ehime University
Session Language 
J
Scope 
In the coastal region, which is highly susceptible to human activities and involves complex ocean phenomena, understanding oceanic circulation and material cycles, as well as developing strategies to address environmental changes, is a key issue. For example, various physical processes - such as seawater exchange with the open ocean in regions like the Kuroshio, freshwater discharge from rivers, tidal currents, and associated internal waves, eddies, and turbulent mixing - play essential roles in coastal ocean circulation. Nutrient input from land and the open ocean, along with ocean phenomena related to human activities - such as red tides, oxygen - deficient water masses, and marine pollution - significantly impacts the coastal marine environment. In recent years, the effects of global climate change - particularly ocean warming and acidification-on coastal regions have been gaining attention. Here, we propose an interdisciplinary session on coastal circulation and material cycles.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 26 PM1
13:45 - 14:00 AOS21-01 Marine heatwaves around Japan over the past four decades: Links to low-frequency variability in sea surface temperature Yusuke Ushijima
14:00 - 14:15 AOS21-02 Interannual variations of temperature and salinity in the Soya Warm Current region over the past 40 years Mariko Honda
14:15 - 14:30 AOS21-03 Enhanced vertical mixing and turbulent exchange by mesoscale eddies over the continental slope in the northwestern Sea of Japan Dmitry Stepanov
14:30 - 14:45 AOS21-04 Wind-induced coastal upwelling along the east coast of the Japan mainland investigated with satellite observation data Kaede Shibata
14:45 - 15:00 AOS21-05 Observation of the occasional intrusion of Kuroshio water (Kyucho) and turbulent mixing off Shitaba Bay, Uwajima, in the summer of 2024 Eisuke Tsutsumi
15:00 - 15:15 AOS21-06 Effect of water intrusion from Bisan Straits on phytoplankton dynamics in Harima Nada in the Seto Inland Sea NATSUKI NOGAMI
Oral Presentation May 26 PM2
15:30 - 15:45 AOS21-07 On the mechanism of pH drawdown after rainfall ivents in Shizugawa Bay Tsuneo Ono
15:45 - 16:00 AOS21-08 Influence of river water and lower shelf water on chlorophyll a distribution in the shelf area off the coast of Boso, Japan Sachihiko Itoh
16:00 - 16:15 AOS21-09 Observations of mixing processes in the vicinity of the Tone River mouth Yambe Yakehito
16:15 - 16:30 AOS21-10 Tracing sediment-water exchange in the shelf region off the Tone River using radium isotopes Toshimi Nakajima
16:30 - 16:45 AOS21-11 Numerical forecast simulation of the occurrence of hypoxic water mass in Ariake Sea, Japan. Soichi Yamaguchi
16:45 - 17:00 AOS21-12 Impact of Effluent Density Adjustment through Seawater Mixing Operations at a Sewage Treatment Plant on Coastal Transport Dynamics Yusuke Uchiyama
Presentation No Title Presenter
Poster Presentation May 26 PM3
AOS21-P01 Numerical simulations of internal tides off the Boso and Joban regions Eiji Masunaga
AOS21-P02 Field observations and numerical modeling of rip currents in a fringing coral reef channel Heng Wu
AOS21-P03 Coastal upwelling along the coast of Mainland Japan investigated with ROMS Hikaru Yanagisawa
AOS21-P04 Effects of topography and stratification on the propagation of coastal Kelvin waves. Kazuya Tashiro
AOS21-P05 Highest sea level distribution in the anchorage of Fukuyama Port during the arrival of Tsunami due to the Nankai Trough earthquake Atsushi Mukai
AOS21-P06 Internal Tide Breaking Over Bumpy Shaped Topography Kojiro Harima
AOS21-P07 Internal solitary wave trains observed on the continental shelf off Boso Anne Takahashi
AOS21-P08 Widespread intensified pycnocline turbulence in the summer stratified Yellow Sea Wei Yang
AOS21-P09 Riverine water distribution and vertical mixing in the plume area of Tone River Takashi Murakami
AOS21-P10 Training data improvement for building zooplankton detection models Tomoki Myoken
AOS21-P11 Linear trends of surface winds in Suruga Bay, Japan, associated with the Kuroshio large meander Daisuke Takahashi
AOS21-P12 Dynamics of Karenia mikimotoi red tide in Imari Bay: Factors behind the formation of patchy-like water masses with high cell density Soichi Yamaguchi