| 积层混合云结构和云微物理的数值模拟 |
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| 引用本文： | 邹倩,刘奇俊,刘卫国.积层混合云结构和云微物理的数值模拟[J].甘肃气象,2008,26(2):74-83. |
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| 作者姓名： | 邹倩 刘奇俊 刘卫国 |
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| 作者单位： | 中国气象科学研究院 北京100081(邹倩，刘卫国)，国家气象中心 北京100081(刘奇俊) |
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| 摘 要： | 对三维非静力中尺度模式ARPS的云微物理方案进行了改进，利用改进后的模式模拟了华北地区的积层混合云降水个例，通过对模拟结果的分析并结合实况资料研究了积层混合云的降水特征、云物理结构特征和微物理过程。结果表明，积层混合云降水分布不均匀，雨区中存在多个强降水中心，云系中微物理量在水平和垂直方向上分布都不均匀，积云中的垂直液态水积分含量大大高于层云中含量，此次降水冰相过程占主导地位，霰的融化是最主要的雨生成项。
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| 关 键 词： | ARPS 积层混合云 云微物理 |
Numerical Simulation of Stratocumulus Cloud Structure and Cloud Microphysical Processes |
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| ZOU Qian,LIU Qijun,LIU Weiguo.Numerical Simulation of Stratocumulus Cloud Structure and Cloud Microphysical Processes[J].Gansu Meteorology,2008,26(2):74-83. |
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| Authors: | ZOU Qian LIU Qijun LIU Weiguo |
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| Institution: | ZOU Qian, LIU Qijun, LIU Weiguo ( 1. Chinese Academy of Meteorological Science, Beijing 100081, China; 2. National Meteorological Centre, Beijing 100081 ,China) |
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| Abstract: | The ARPS mesoscale model is improved by modifying cloud microphysical scheme.Three new predictands and their microphysical processes,including the number concentration of rain(Nr),snow(Ns) and hail(Nh),are introduced into the model.One case of stratocumulus cloud in North China is simulated by the improved ARPS model.The characteristics of cloud development,precipitation,cloud microphysical structure and cloud microphysical process are investigated.The case study suggests that the distribution of stratocumulus precipitation is nonhomogeneous with some precipitation significance regions,and the cloud microphysical structure is nonhomogeneous in space.The vertical accumulating liquid water content in cumulus is higher than that in stratus;the ice phase process leads this precipitation,and the melting of graupel is the main source of rain. |
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| Keywords: | ARPS model stratocumulus cloud cloud microphysics |
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