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| 应用雷达拼图数据估测降水试验 | |
| 引用本文： | 伍静,刘黎平,尤卫红,崔哲虎.应用雷达拼图数据估测降水试验[J].气象科技,2010,38(2):175-181. |
| 作者姓名： | 伍静 刘黎平 尤卫红 崔哲虎 |
| 作者单位： | 1. 广西壮族自治区桂林市气象局,桂林,541002;中国气象科学研究院灾害天气国家重点实验室,北京,100081;云南大学,昆明,650091 2. 中国气象科学研究院灾害天气国家重点实验室,北京,100081 3. 云南大学,昆明,650091 |
| 基金项目： | 国家重点基础研究发展规划(973计划) |
| 摘 要： | 利用2008年6月5～7日广东省新一代天气雷达网(广州、梅州、韶关、阳江、深圳及汕头6部雷达)的雷达原始体扫资料及自动雨量站资料,对广东省3 km高度上的雷达网系统观测值差异进行了分析,发现广州雷达的观测值比周围雷达偏高1～3 dBz,梅州雷达比其周围雷达的观测值偏低1～2 dBz。用Z-R关系和最优插值校准法分别进行6 min和1 h估测降水,并用面雨量偏差和均方根误差对该次降水估测试验做了简单评估。结果显示:6 min定量估测降水,两种方法都会低估,面雨量越大,估测效果越好;对于1 h定量估测降水,各种估测方法都有偏高或偏低情况,但普遍偏高,其中用先累加再用最优插值校准法校准的雷达-雨量计联合估测方法效果最好;短时降水估测可以很好地反映降水过程变化,而长时间降水估测可以较准确估测降水大小。 |
| 关 键 词： | 定量估测降水 最优插值法 Z-R关系 回波强度 |
| 收稿时间： | 3/4/2009 12:00:00 AM |
| 修稿时间： | 2009/4/23 0:00:00 |
Application Experiment on Quantitative Rainfall Estimation with Radar Mosaic Data |
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| Wu Jing,Liu Liping,You Weihong and Cui Zhehu.Application Experiment on Quantitative Rainfall Estimation with Radar Mosaic Data[J].Meteorological Science and Technology,2010,38(2):175-181. | |
| Authors: | Wu Jing Liu Liping You Weihong and Cui Zhehu |
| Institution: | Wu Jing1,2,3 Liu Liping2 You Weihong3 Cui Zhehu2(1 Guilin Meteorological Buearu,Guilin 541002,2 State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,3 Yunnan University,Kunming 650091) |
| Abstract: | The radar and automatic precipitation station data of 5 to 7 June 2008 from the Guangdong provincial CINRAD network are used,an analysis is carried out of the observation differences of the radar networking system at 3 km over Guangdong Province,and it is discovered that observed values of Guangzhou radar,compared to nearby radar,are generally 1 to 3 dBz higher,and those of Meizhou radar are 1 to 2 dBz lower.With the Z-R relationship and the optimum interpolation calibrated method,6-minute and 1-hour quanti... |
| Keywords: | quantitative rainfall estimation optimum interpolation Z-R relationship echo intensity |
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