| 用天气雷达回波强度资料估测降水 |
| |
| 引用本文： | 李腹广,王芬.用天气雷达回波强度资料估测降水[J].气象科技,2007,35(2):286-288. |
| |
| 作者姓名： | 李腹广 王芬 |
| |
| 作者单位： | 贵州省黔西南州气象局,兴义,562400 |
| |
| 基金项目： | 贵州省气象局气象科技短平快课题 |
| |
| 摘 要： | 利用2004年兴义多普勒雷达体扫复合仰角的强度回波资料及自动站雨量资料,在贵州省黔西南地区进行降水估测。综合考虑了地理环境、气候、距雷达中心距离等3个因素,对下属的8县1市进行降水估测,运用了不同仰角进行多次实验,最后运用最小二乘法得到该区域的Z-I(反射率因子-降水)关系,选取2005年1-7月的部分资料进行检验对比,并对降水误差从地理环境、雷达性能等多个方面进行分析。结果表明,用此方法得出的Z-I适用性较好,准确率较高,为降水估测提供了较可靠的判据。
|
| 关 键 词： | 估测降水 多普勒雷达 回波强度 最小二乘法 |
| 收稿时间： | 2005/9/30 0:00:00 |
| 修稿时间： | 2005年9月30日 |
Estimate of Rainfall Using Weather Radar Echo Data |
| |
| Li Fuguang and Wang Fen.Estimate of Rainfall Using Weather Radar Echo Data[J].Meteorological Science and Technology,2007,35(2):286-288. |
| |
| Authors: | Li Fuguang and Wang Fen |
| |
| Institution: | Southwest Guizhou Meteorological Bureau, Guizhou Province, Xingyi 562400;Southwest Guizhou Meteorological Bureau, Guizhou Province, Xingyi 562400 |
| |
| Abstract: | The rainfall estimate is conducted for the southwestern Guizhou Province(eight counties and one city) by means of the Doppler radar data(volume scan) and automatic weather station data in 2004,considering the geographical and climatic features and the distance away from the radar.The least square method is used to determine the relationship between radar echo intensity and precipitation.The statistical test is carried out by the data from January to July 2005 and the analysis of the errors is made from several aspects.The results are satisfactory and provide useful references for rainfall estimate. |
| |
| Keywords: | rainfall estimate Doppler radar echo intensity least square method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《气象科技》浏览原始摘要信息 |
| 点击此处可从《气象科技》下载免费的PDF全文 |
|
