| 华南暖区降水数值预报的初值同化试验 |
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| 引用本文： | 张诚忠,万齐林,黄燕燕,陈子通,丁伟钰.华南暖区降水数值预报的初值同化试验[J].热带气象学报,2008,24(6):576-589. |
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| 作者姓名： | 张诚忠 万齐林 黄燕燕 陈子通 丁伟钰 |
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| 作者单位： | 中国气象局广州热带海洋气象研究所,广东,广州,510080 |
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| 基金项目： | 公益性项目GYHX(QX)2007-6-14
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中央级公益性科研院所基本业务费共同资助
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| 摘 要： | 为了了解初值场对华南短时临近降水预报的影响，文中利用GRAPES区域中尺度模式，针对华南一次暖区暴雨过程分别进行控制试验、同化地面探空资料、nudging雨水资料和同化雷达径向风等四个模拟试验。分析结果表明：(1) 同化地面探空资料有助于改善24小时的降水落区及其量级；(2) nudging雨水资料对临近降水预报有积极影响；(3) 同化雷达径向风能使24小时的降水落区、量级得到明显的提升。这些结论为下一步的华南地区短时临近降水预报研究提供了重要的技术参考。
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| 关 键 词： | 华南 初值场 暖区降水 模拟试验 |
| 收稿时间： | 2007/10/29 0:00:00 |
| 修稿时间： | 2008/1/18 0:00:00 |
NUMERICAL EXPERIMENTS ON THE IMPACT OF INITIAL CONDITIONS UPON PRECIPITATION IN WARM REGION OVER SOUTH OF CHINA |
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| ZHANG Cheng-zhong,WAN Qi-lin,HUANG Yan-yan,CHEN Zi-tong and DING Wei-yu.NUMERICAL EXPERIMENTS ON THE IMPACT OF INITIAL CONDITIONS UPON PRECIPITATION IN WARM REGION OVER SOUTH OF CHINA[J].Journal of Tropical Meteorology,2008,24(6):576-589. |
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| Authors: | ZHANG Cheng-zhong WAN Qi-lin HUANG Yan-yan CHEN Zi-tong and DING Wei-yu |
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| Institution: | ZHANG Cheng-zhong,WAN Qi-lin,HUANG Yan-yan,CHEN Zi-tong,DING Wei-yu(Institute of Tropical , Marine Meteorology,CMA,Guangzhou 510080,China) |
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| Abstract: | In order to understand the impact of initial conditions upon prediction accuracy of nowcasting and short-term precipitation over south of China,four experiments,which include a control experiment,the assimilation of routine surface and sounding observational data,and the assimilation of radar radial wind information and nudging rainwater,are respectively conducted to simulate a heavy rainfall case occurred in warm region over south of China,by using GRAPES_MESO.Results show that(1) assimilating routine surf... |
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| Keywords: | south of China initial conditions precipitation in warm region numerical simulation experiment |
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