| Numerical test of coastal frontogenesis |
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| 作者姓名： | Shen Shaohu Zhou Mingyu |
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| 作者单位： | National Research Center for Marine Environmental Forecasts, State Oceanic Administration, Beijing 100081, China;National Research Center for Marine Environmental Forecasts, State Oceanic Administration, Beijing 100081, China |
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| 摘 要： | Ｎｕｍｅｒｉｃａｌｔｅｓｔｏｆｃｏａｓｔａｌｆｒｏｎｔｏｇｅｎｅｓｉｓ￥ＳｈｅｎＳｈａｏｈｕａａｎｄＺｈｏｕＭｉｎｇｙｕ（ＲｅｃｅｉｖｅｄＦｅｂｒｕａｒｙ８，１９９３；ａｃｃｅｐｔｅｄＭａｒｃｈ３０，１９９３）Ａｂｓｔｒａｃｔ：──Ａｔｗｏ－ｄｉｍｅ...
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| 收稿时间： | 2/8/1993 12:00:00 AM |
| 修稿时间： | 1993/3/30 0:00:00 |
Numerical test of coastal frontogenesis |
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| Shen Shaohu,Zhou Mingyu.Numerical test of coastal frontogenesis[J].Acta Oceanologica Sinica,1994,13(1):57-72. |
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| Authors: | Shen Shaohua and Zhou Mingyu |
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| Institution: | National Research Center for Marine Environmental Forecasts, State Oceanic Administration, Beijing 100081, China |
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| Abstract: | A two-dimensional mesoscale model is used to investigate the effect of background wind field and character of the underlying surface on the coastalfrontogenesis along the east continental coast when cold air outbreak. The results of numerical experiments indicate that the coastalfrontogenesis mainly appears near ground at night. When the background wind is easterly, it is favorable to coastal frontogenesis in the lower layer of the atmosphere. When the background wind is westerly, it is unfavorable to coastal frontogenesis in the lower layer of the atmosphere. The vertical shear of the background wind has important influence on the coastal frontogenesis. The coastal frontogenesis at lower layer at night is strengthened with increasing temperature difference between sea and air. The effect of coastal sloping terrain on the coastal frontogenesis is little when the topography sloping angle is lesser.The analysis of the physical mechanism of frontogenesis shows that the main factor influencing the coastal frontogenesis is the deformation field of horizontal wind speed. |
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