摘要
本文用一维数值模式,模拟了平坦地形情况下小风、晴空夜间边界层内风、温、湿的演变,计算结果与观测事实有较好的一致性。对有高云或少量中、低云存在时的计算结果分析表明,模式对风速的模拟仍然较好,对温度的模拟比实测值可偏低0.3—1℃,对相对湿度的模拟比实测值可偏高5—10％在符合模式使用范围的情况下,本模式可作为夜间边界层预报的一种方法参考使用。
By using a one-dimensional numerical model, the changes of wind, temperature and humidity in flat topographical boundary layer with gentle wind and clear night have been simulated.There are good identities between.the numerical results and the observations.It is still good to simulate the wind speed by using this model, when there are some high clouds or a small amount of middle or low clouds, the simulation for temperature was 0.3-1℃ lower than the value of observations, and simulation for relative humidity was 5-10% higher than the values of observations. If model conditions are satisfied, the model can be used as a referential method for prediction of nocturnal boundary layer.
出处
《大气科学》
CSCD
北大核心
1991年第1期120-126,共7页
Chinese Journal of Atmospheric Sciences
