Effects of Winds, Tides, and Storm Surges on Ocean Surface Waves in the Japan/East Sea
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Transcript of Effects of Winds, Tides, and Storm Surges on Ocean Surface Waves in the Japan/East Sea
Effects of Winds, Tides, and Storm Surges on Ocean Surface Waves
in the Japan/East Sea
Shuyi S. Chen and Wei ZhaoRSMAS/University of Miami
Cheryl Ann BlainNRL/Stennis Space Center
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.
Atmosphere-Wave-Ocean Coupling
• Atmospheric surface forcing
• Wind-induced ocean surface waves
• Oceanic response and feedback
MM5 (atmosphere)• 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, • 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
Models
NSCAT
MM5 ECMWF
NCEPSST
PFSST
PFSST-NCEPSST
MM5 Winds/SWH
ECMWF Winds/SWH
MM5 Winds/Wavelength
ECMWF Winds/Wavelength
StormNon-Storm
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.