区域中尺度模式云微物理参数化方案特征及其在中国的适用性

被引:37
作者
尹金方 [1 ]
王东海 [1 ]
翟国庆 [2 ]
机构
[1] 中国气象科学研究院灾害天气国家重点实验室
[2] 浙江大学地球科学系
关键词
中尺度模式; 云微物理参数化; 降水模拟; 敏感性试验;
D O I
暂无
中图分类号
P426.5 [云];
学科分类号
0706 ; 070601 ;
摘要
云微物理参数化方案在数值模式中起着重要的作用,是影响数值天气预报和气候预测准确性的最大因素。系统回顾了中尺度数值模式中云微物理参数化方案的研究进展,并统计分析了最近十余年云微物理参数化方案在中国范围内的敏感性试验研究成果。Lin方案和Rutledge-Hobbs方案奠定了中尺度模式中云微物理参数化方案的基础,其他方案都是直接或间接在这2个方案的基础上从多方面改进而形成的。这些改进主要体现在:①水凝物粒子分类数目;②冰核活化;③粒子谱分布描述函数;④粒子谱截距的取值;⑤粒子间相互转换阈值大小的设定。中国范围内云微物理参数化方案敏感性试验研究成果统计表明,使用WRF模式中Lin方案的模拟效果较好,MM5模式采用Goddard和Reisner方案效果较好。
引用
收藏
页码:238 / 242+249+243 +249
页数:12
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