| 一种改进的质量通量积云参数化方案及预报试验 |
| |
| 引用本文： | 薛建军,闫之辉. 一种改进的质量通量积云参数化方案及预报试验[J]. 气象, 1999, 25(5): 8-12 |
| |
| 作者姓名： | 薛建军 闫之辉 |
| |
| 作者单位： | 国家气象中心,北京,100081 |
| |
| 摘 要： | 用国家气象中心有限区域业务预报模式，以１９９８年８月一次热带风暴降水过程为试验个例，对引入了下曳气流的质量通量积云对流参数方案和模式中的原质量通量积云参数化方案进行了对比试验。结果显示；引入了下曳气流后，通过提高对流降水量使降雨强度预报得以提高，更接近于实况；改进后的方案对大雨以上预报水平有一定的改善，各项评分结果均有所提高。
|
| 关 键 词： | 下曳气流 质量通量 积云参数化方案 |
An Improved Mass flux Cumulus Parameterization Scheme and Forecasting Experiments |
| |
| Xue Jianjun,Yan Zhihui. An Improved Mass flux Cumulus Parameterization Scheme and Forecasting Experiments[J]. Meteorological Monthly, 1999, 25(5): 8-12 |
| |
| Authors: | Xue Jianjun Yan Zhihui |
| |
| Abstract: | By using a limited area operational forecasting model and choosing a precipitation weather process caused by a tropical storm in August 1998,comparative forecasting experiments of an improved mass flux cumulus parameterization scheme taking into account the effects of both updrafts and downdrafts and the original one only includes updrafts used in the model were performanced.The results show that downdrafts contribute significantly to the improvement of the model precipitation forecasts for over 25 0mm. |
| |
| Keywords: | downdraft mass flux cumulus parameterization scheme |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《气象》浏览原始摘要信息 |
|
点击此处可从《气象》下载全文 |
