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| L波段探空系统高空风平滑计算方法探讨 | |
| 引用本文： | 王缅,李伟,陈永清,赵培涛,郭启云,张宇,胡姮,郭月红,刘琳.L波段探空系统高空风平滑计算方法探讨[J].气象,2011,37(1):85-91. |
| 作者姓名： | 王缅 李伟 陈永清 赵培涛 郭启云 张宇 胡姮 郭月红 刘琳 |
| 作者单位： | 1. 中国气象局气象探测中心,北京,100081 2. 中国气象局综合观测司,北京,100081 3. 北京市气象台,北京,100086 |
| 基金项目： | 国家自然科学基金(编号40905016)资助 |
| 摘 要： | 在分析现行业务L波段探空系统测风原理的基础上,提出改进高空测风数据的平滑计算方法.首先比较了业务分钟风与滑动平均风两种高空测风数据的平滑计算办法,并与GPS RS92测风数据进行了对比分析和批统计处理,特别是对业务L波段雷达在1～21、22～42和43分钟及以后采取不同的时间隔计算风的规定给出了分时段以及低仰角、远距离和小风速的统计分析.结果显示,滑动平均法在选取合适的滑动平均窗口的条件下,其计算的高空风与GPS RS92测风结果一致性更好且动态误差小.建议未来改进业务L波段探空系统的高空风平滑计算方法时,采用窗口为1分钟的滑动平均方式或者前20分钟采用30秒,以后采用1分钟的分段滑动平均方法. |
| 关 键 词： | L波段 探空系统 高空风 平滑计算方法 |
| 收稿时间： | 2010/2/26 0:00:00 |
| 修稿时间： | 2010/7/24 0:00:00 |
Discussion of Smoothing Methods of Upper-Air Wind Measured by L-Band Radar and Radiosonde Sounding System |
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| WANG Mian,LI Wei,CHEN Yongqing,ZHAO Peitao,GUO Qiyun,ZHANG Yu,HU Heng,GUO Yuehong and LIU Ling.Discussion of Smoothing Methods of Upper-Air Wind Measured by L-Band Radar and Radiosonde Sounding System[J].Meteorological Monthly,2011,37(1):85-91. | |
| Authors: | WANG Mian LI Wei CHEN Yongqing ZHAO Peitao GUO Qiyun ZHANG Yu HU Heng GUO Yuehong and LIU Ling |
| Institution: | WANG Mian~1 LI Wei~1 CHEN Yongqing~2 ZHAO Peitao~1 GUO Qiyun~1 ZHANG Yu~2 HU Heng~1 GUO Yuehong~3 LIU Ling~3 1 Meteorological Observation Center of CMA,Beijing 100081 2 Department of Integrated Observations,CMA,Beijing 100081 3 Beijing Meteorological Observatory.Beijing 100086 |
| Abstract: | Based on the analysis of wind measurement of operational L-band radar and radiosonde sounding system,it is proposed an improved smoothing algorithm of upper-air wind.Firstly,the differences of two smoothing algorithms for upper-air winds,which are the operational minute wind and the moving average wind,are compared.Then they are also compared with GPS RS92 wind.The comparative analysis and the results of statistical processing are given,especially are also given several segmented statistical analysis of low... |
| Keywords: | L-band sounding system upper-air wind smoothing algorithm |
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