| 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].四川地震,2010(1). |
| |
| 作者姓名： | 伍静 刘黎平 尤卫红 崔哲虎 |
| |
| 作者单位： | 广西壮族自治区桂林市气象局 中国气象科学研究院灾害天气国家重点实验室 云南大学 |
| |
| 基金项目： | 973项目“我国南方致洪暴雨监测与预测的理论和方法研究”(2004CB418305)资助 |
| |
| 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 |
Application Experiment on Quantitative Rainfall Estimation with Radar Mosaic Data |
| |
| Wu Jing,;,;,Liu Liping,You Weihong,Cui Zhehu.Application Experiment on Quantitative Rainfall Estimation with Radar Mosaic Data[J].Earthquake Research in Sichuan,2010(1). |
| |
| Authors: | Wu Jing ; ; Liu Liping You Weihong Cui Zhehu |
| |
| Institution: | 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 |
| 本文献已被 维普 等数据库收录！ |
|
