1988•Kyūshū Daigaku Daigakuin Sōgō Rikōgaku Kenkyūka hōkokuRequires access
Characteristics of the Sea-land Breeze in the Summer by Statistical Analyses of the AMeDAS Data
純一郎 堤, Jun-ichiro Tsutsumi, 忠久 片山, Tadahisa KATAYAMA, 広樹 北山, Hiroki Kitayama, 昭夫 石井, Akio Ishii, 勝 西田, Masaru Nishida
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Abstract
The summer season is selected by the 7 days moving average of daily mean air temperature in each year. The axis of the sea-land breeze is decided from a wind rose which is drawn using all the data in this season, considering the direction of the nearest seashore in each city. The sea-land breeze component of a wind vector is defined as a component of which direction is equal to that of the axis of the sea,land breeze. Sea and land breeze hours are decided froin the diurnal fluctuation of the sea-land breeze component averaged at each time. The sea-land breeze is a thermal convection of which heat source is solar radiation. The relation between the sea-land breeze component and the diurnal duration of sunshine is examined.