1. Shuyi S. Chen and Wei Zhao Cheryl Ann Blain
Effects of Winds, Tides, and Storm Surges on Ocean Surface Waves in the Japan/East Sea
Shuyi S. Chen and Wei Zhao
RSMAS/University of Miami
Cheryl Ann Blain
NRL/Stennis Space Center

2. Objectives
To understand the interactive processes of the ocean-atmosphere system in the Japan/East Sea (JES) region, especially the effects of the atmospheric forcing associated with the wintertime cold-air outbreak events which are modulated strongly by the complex coastal topography.

3. Atmosphere-Wave-Ocean Coupling
Atmospheric surface forcing
Wind-induced ocean surface waves
Oceanic response and feedback

4. Models MM5 (atmosphere) WAVEWATCH III (surface wave)
non-hydrostatic, 28 vertical levels, triple nests with grid spacing of 45, 15, 5 km.
WAVEWATCH III (surface wave)
4-D Spectrum Model [(x, y), (k, q)]
1/12 degree grid spacing
25 frequency bands
48 directional frequency bands(evenly spaced by 7.5o)
ADCIR-2DDI (hydrodynamic)
finite element, 3 km (coastal) – 70 km (deep ocean)
tidal potential and elevations at open boundary

13. NSCAT
MM5
ECMWF

15. NCEPSST
PFSST-NCEPSST
PFSST

21. MM5 Winds/SWH

22. ECMWF Winds/SWH

23. MM5 Winds/Wavelength

24. ECMWF Winds/Wavelength

25. Non-Storm
Storm

28. Conclusions
Surface waves are most sensitive to spatial and temporal resolutions of the atmospheric forcing.
Tides and storm surges can have a significant impact on the waves near shores when water depth decrease sharply.