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Numerical Study of Regional Characteristic of Sea and Land Breeze over the Kyushu Region and its Seasonal Variation

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Abstract High-resolution regional meteorological model,RAMS,was applied to simulate the sea and land breeze over the Kyushu region.The days of typical sea and land breeze circulation were selected with AMeDAS ...observation data within the Kyushu area.Simulation results were intensively examined with the observation data,and captured the regional characteristics of sea and land breeze circulation and a typical pattern of sea and land breeze appeared in the Kyushu region.Simulation results indicated that wind speed of land breeze in summer was weaker than other seasons.A seasonal variation for starting time of sea breeze penetration had a difference from one to two hours at the Pacific Ocean side.On the other hand,sea breeze starting time along the inland sea indicated a timed difference of two to three hours, it became clearly that seasonal variation was remarkable by comparing it with other area.The analysis of sea and land breeze circulation shows that wind fields of the Chikushi plain had a different pattern in each season.In addition,we found that maximum wind speed of sea breeze was the strongest in spring, and its height in spring is the lowest than other seasons.show more

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Created Date 2010.03.09
Modified Date 2017.12.19

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