一个含植被影响的湖陆风数值模式

A NUMERICAL MODEL FOR LAKE-LAND BREEZE CONTAINING VEGETATION EFFECT

建立一个包含植被影响多数化的二维湖陆风数伍模式。它以改进的Ｎｉｃｋｅｒｓｏｎ（１９７９）二维中－β尺度数伍模式为动力学框架，并加入ＭｃＣｕｍｂｅｒ等（１９８１）的土壤模式和Ｄｅａｒｄｏｒｆｆ（１９７８）的植被参数化方案，，绒后以Ｔｈｅｒｒｙ等（１９８３）的湍流参数化和Ｍａｈｒｅｒ等（１９７７）改进的辐射参数化方法闭合此控制系统。最后，以太湖湖陆风对陆地植被覆盖因子作了敏感性试验，结果表明植被覆盖对湖陆风的影响是明显的。

A model with vegetation effect parameterized is developed for studying lake-landbreeze. The dynamic framework is the improved meso-β scale model of Nickerson et al.(1979)in which the soil model by McCumber et al.(1981)and the vegetation parameteriza-tion scheme by Deardorff(1978)are included.Then,the governing system is closed by usingthe ttirbulence parameterization of Therry et al. (1983)and the improved radiation parame-terization by Mahrer et al.(1977).FInally,a sensitivity experiment is conducted in the lake-land breeze of Lake Taihu to the change of the vegetation cover asgire, It is shown that thevegetation coverage has an obvious influence on lake-land breeze.