| AREM模式中引入MYJ边界层方案介绍及其试验 |
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| 引用本文： | 蒋兴文,何光碧,李跃清.AREM模式中引入MYJ边界层方案介绍及其试验[J].四川气象,2010(4):1-7. |
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| 作者姓名： | 蒋兴文 何光碧 李跃清 |
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| 作者单位： | 中国气象局成都高原气象研究所;兰州大学大气科学学院; |
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| 基金项目： | 中国气象局成都高原气象研究所基本科研业务费专项经费项目(BROP201017),2008年中国气象局基本业务建设项目“数值预报业务系统的运行维持”,西南区域数值预报业务系统建设; 国家自然科学基金项目(60832012); 公益性行业(气象)科研专项(GYHY(QX)2007-6-12) |
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| 摘 要： | 业务实践表明,AREM模式对中国暴雨有较好的模拟能力。当前AREM模式中可供选择的边界层参数化方案比较单一,而不同边界层方案对暴雨的模拟差异较大,所以在AREM中引入一种新的边界层方案是提高其性能的一个重要方面。本文介绍了在AREM模式中引入Mellor-Yamada-Janjic′（MYJ）边界层方案的关键技术与流程,并对MYJ方案的模拟能力进行了评估。模式对2008年四川暴雨的模拟结果表明,MYJ方案有助于改善模式预报的降雨落区位置。
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| 关 键 词： | AREM模式 Mellor-Yamada-Janjic′ 边界层方案 暴雨 |
Introduction of Implementing MYJ Boundary Scheme to AREM Model and Its Performance |
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| JIANG Xingwen,HE Guangbi,LI Yueqing.Introduction of Implementing MYJ Boundary Scheme to AREM Model and Its Performance[J].Journal of Sichuan Meteorology,2010(4):1-7. |
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| Authors: | JIANG Xingwen HE Guangbi LI Yueqing |
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| Institution: | JIANG Xingwen1,2,HE Guangbi1,LI Yueqing1 (1.Institute of Plateau Meteorology,CMA,Chengdu,610072,2.College of Atmospheric Sciences,Lanzhou University,Lanzhou,730000) |
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| Abstract: | Weather prediction practices show that the AREM model can well capture the feature of heavy rainfall in China.However,there are only two boundary schemes in the model and one of them has not used in NWP model today.There are discrepancies of precipitation simulated by model with different boundary scheme,so implementing a boundary scheme to AREM model may improve its simulation abilities of heavy rainfall.The procedures of implementing Mellor-Yamada-Janjic′（MYJ）boundary scheme to AREM mode were introduced in this paper and many cases of heavy rain were studied.The results indicate that rainfall areas can better predicted by AREM model with MYJ scheme than its older ones. |
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| Keywords: | AREM model Mellor-Yamada-Janjic′ boundary scheme heavy rain |
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