Japan Geoscience Union Meeting 2015

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International Session (Oral)

Symbol A (Atmospheric and Hydrospheric Sciences) » A-CG Complex & General

[A-CG07] Continental-Oceanic Mutual Interaction: Global-scale Material Circulation through River Runoff

Wed. May 27, 2015 9:00 AM - 10:45 AM 201B (2F)

Convener:*Yosuke Yamashiki(Global Water Resources Assessment Laboratory - Yamashiki Laboratory Graduate School of Advanced Integrated Studies in Human Survivability Kyoto University), Yukio Masumoto(Japan Agency for Marine-Earth Science and Technology), Swadhin Behera(Climate Variation Predictability and Applicability Research Program Research Institute for Global Change/JAMSTEC, 3173-25 Showa-machi, Yokohama 236-0001), Yasumasa Miyazawa(Japan Agency for Marine-Earth Science and Technology), Toshio Yamagata(Japan Agency for Marine-Earth Science and Technology), Kaoru Takara(Disaster Prevention Research Institute, Kyoto University), Chair:Yukio Masumoto(Japan Agency for Marine-Earth Science and Technology), Swadhin Behera(Climate Variation Predictability and Applicability Research Program), Toshio Yamagata(Japan Agency for Marine-Earth Science and Technology)

10:00 AM - 10:15 AM

[ACG07-04] High resolution downscaled modeling of coastal ocean processes

*Sergey VARLAMOV1, Yasumasa MIYAZAWA1, Yosuke YAMASHIKI2 (1.JAMSTEC, 2.Kyoto University)

Keywords:ocean modeling, downscaled simulation, coastal processes

System of nested ocean circulation models is used for analysis of coastal oceanic processes including river discharges to the ocean along the Pacific coast of Japan. An accent is made on the coastal waters east off Tohoku area and on Abukuma river fresh waters propagation and diffusion in Pacific Ocean.
All nested models have same vertical resolution with 46 generalized sigma levels. The low spatial resolution (about 10 km) ocean model is an assimilative non-tidal JCOPE model, when intermediate (about 3 km) and high resolution (about 0.5 km) models are both tide-resolving models.
Results of modeling with these models are compared and high resolution dynamics of ocean variability is demonstrated and discusses.