[1] The effect of a tidal flat on the dispersion of thermal effluent from the nuclear power plant at YongGwang (5.8 Â 10 6 kW) along the west coast of Korea was investigated using intensive field observations and three-dimensional numerical simulations. The calculated sea surface temperature distribution reproduces well the observed one with a root mean square error of 0.53°C. A water column on the tidal flat area received a heat influx of 168 W m À2 on 17 April 2003 and transported the received heat to the adjacent coastal water at low water. The total heat supply from the tidal flat area to the coastal water was 6.6 Â 10 10 W, and was larger by about 1 order of magnitude than that from the power plant of 7.0 Â 10 9 W on 17 April 2003, which was a fine day at spring tide. This fact shows that the effect of the tidal flat on the thermal effluent from the power plant is very large.Citation: Yanagi, T., K. Sugimatsu, H. Shibaki, H.-R. Shin, and H.-S. Kim (2005), Effect of tidal flat on the thermal effluent dispersion from a power plant,
One of the important procedures for Disaster Prevention Plan is to determine accurately the wind condition of an approaching typhoon. By using the Meteorological Model, it enables the aforementioned situation to be specified. The purpose of this study is for the method application to the Disaster Prevention Plan. The effect examined is due to the difference of several computational condition by Typhoon 5115. This reveals the property model of WRF with Typhoon Bogus. In addition to that, we enumerated the problem issued from the model utilization in order to make the application easy. According to the study, it is proved that the parameters of Rb and Ro greatly influences reproducibility of typhoon. The magnitudes of central pressure and wind velocity speed are susceptible to Nudging coefficient .
This study presents the results of analysis of the field observations and the numerical simulation of tidal currents in the Kurushima Strait. The field data measured tidal currents at the two points near the Strait for fifteen days and measured vertical distributions of tidal currents in the west channel of the Strait for 10 hours in one day. The numerical simulation is performed by a multi-level model of tide and tidal currents as horizontal eddy viscosity terms, described with the Smagorinsky's formulas, are incorporated. The specific peculiarities of the complex coastal line and bottom topography of the Strait are taken into account in the model. The tidal current fields are reproduced by the model. Several components of tidal currents and the location of streaks, generated in the Strait, can be predicted by the numerical simulation.
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