| 利用循环3DVAR改进黄海海雾数值模拟初始场Ⅰ:WRF数值试验 |
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| 引用本文： | 高山红,齐伊玲,张守宝,傅刚.利用循环3DVAR改进黄海海雾数值模拟初始场Ⅰ:WRF数值试验[J].中国海洋大学学报(自然科学版),2010,40(10). |
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| 作者姓名： | 高山红 齐伊玲 张守宝 傅刚 |
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| 作者单位： | 中国海洋大学物理海洋实验室,山东,青岛,266100 |
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| 基金项目： | 国家自然科学基金项目，国家科技部项目，中国气象局行业公益专项基金项目 |
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| 摘 要： | 以如何提高黄海海雾数值模拟初始场质量为研究目的,利用WRF模式及其先进的3DVAR同化模块,设计并构建了循环3DVAR同化方案。以2006年3月6~8日的1次大范围黄海海雾过程为研究对象,利用该同化方案进行了一系列WRF数值模拟对比试验。模拟结果显示,循环3DVAR同化方案能有效改进黄海海雾数值模拟初始场质量,主要体现在增加低层大气温度层结构的稳定性与改变大气边界层下层的风场结构,从而导致海雾的模拟结果显著改善。研究结果表明进行海雾数值模拟时,必须高度重视其初始场质量。
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| 关 键 词： | 黄海海雾 数值模拟 初始场 WRF模式 循环3DVAR |
Initial Conditions Improvement of Sea Fog Numerical Modeling over the Yellow Sea by Using Cycling 3DVAR Part Ⅰ: WRF Numerical Experiments |
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| GAO Shan-Hong,QI Yi-Ling,ZHANG Shou-Bao,FU Gang.Initial Conditions Improvement of Sea Fog Numerical Modeling over the Yellow Sea by Using Cycling 3DVAR Part Ⅰ: WRF Numerical Experiments[J].Periodical of Ocean University of China,2010,40(10). |
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| Authors: | GAO Shan-Hong QI Yi-Ling ZHANG Shou-Bao FU Gang |
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| Institution: | GAO Shan-Hong,QI Yi-Ling,ZHANG Shou-Bao,FU Gang(Physical Oceanography Laboratory,Ocean University of China,Qingdao 266100,China) |
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| Abstract: | From the view of improving initial conditions of sea fog modeling over the Yellow Sea,a cycling 3DVAR data assimilation scheme is designed based on WRF model and its 3DVAR module.By using this scheme,a series of WRF numerical experiments of a heavy sea fog event over the Yellow Sea from 6~8 March,2006 are conducted to evaluate its performance.The results show that the scheme can greatly improve the numerical modeling initial conditions,which results in a much better simulated sea fog coverage compared to sa... |
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| Keywords: | sea fog over the Yellow Sea numerical modeling initial conditions WRF model cycling 3DVAR |
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