| GFE(L)1型二次雷达测风性能评估 |
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| 引用本文： | 李伟,张玉存.GFE(L)1型二次雷达测风性能评估[J].成都信息工程学院学报,2011,26(1):91-97. |
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| 作者姓名： | 李伟 张玉存 |
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| 作者单位： | 中国气象局气象探测中心; |
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| 基金项目： | 国家自然科学基金资助项目(40975064) |
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| 摘 要： | 通过第八届世界气象组织阳江国际探空比对,采取同球比对施放方式,选择全球卫星导航测风作为比对标准,对中国目前业务使用的GFE(L)1型二次雷达系统测风能力开展系统性评估。初步评估结果表明,二次雷达测量的风向风速与全球卫星导航测风结果的趋势一致性很好,风速测量准确性与稳定性明显好于风向;二次雷达风速随高度与风速误差略有增加,但差别不大,能保持很高的测量精度;而风向误差以中空最大,低空次之,16km以上高空明显好于其它层次,在风速大于16m/s误差明显减小;但二次雷达测风误差波动较大,稳定性相对较差,特别表现在近地面层与中空,因此未来测风应逐渐向卫星导航测风体制发展,以提高中国高空风探测的水平。
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| 关 键 词： | 气象探测 二次雷达 测风 性能评估 比对 |
The Wind-finding Performance Evaluation of GFE(L)1 Secondary Radar |
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| LI Wei,ZHANG Yu-cun.The Wind-finding Performance Evaluation of GFE(L)1 Secondary Radar[J].Journal of Chengdu University of Information Technology,2011,26(1):91-97. |
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| Authors: | LI Wei ZHANG Yu-cun |
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| Institution: | LI Wei,ZHANG Yu-cun(Meteorological Observation Centre of CMA,Beijing 100081,China) |
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| Abstract: | Based on the 8th WMO(World Meteorological Organization) international radiosonde intercomparison hold at Yangjiang of Guangdong province,the systematic evaluation of wind-finding capability performance for GFE(L)1 Secondary Radar,which is currently in Chinese upper-air operation,is carried out by choosing GPS(Global Position System) wind-finding as reference through the same balloon releasing model.The initial evaluation results show as follows: 1) The good consistence of velocity and wind direction exists ... |
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| Keywords: | meteorological observation secondary radar wind-finding performance evaluation intercomaprison |
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