| 椭球雨滴群旋转轴呈正态分布情况时雷达反射率因子的修正 |
| |
| 引用本文： | 吴莹,王振会,陈钟荣,胡方超.椭球雨滴群旋转轴呈正态分布情况时雷达反射率因子的修正[J].高原气象,2007,26(1):128-134. |
| |
| 作者姓名： | 吴莹 王振会 陈钟荣 胡方超 |
| |
| 作者单位： | 1. 江苏省气象灾害与环境变化重点实验室,江苏,南京,210044;南京信息工程大学,遥感学院,江苏,南京,210044
2. 南京信息工程大学,遥感学院,江苏,南京,210044 |
| |
| 基金项目： | 国家自然科学基金项目(40275010)资助 |
| |
| 摘 要： | 推导出了在云降水粒子群为小旋转椭球水滴群、椭球旋转轴呈正态分布、云降水粒子谱为M-P分布情况下的雷达气象方程,并且重新定义了相应的雷达反射率因子,确定了在用雷达测定非球形雨滴降水时的订正系数。为新一代多普勒天气雷达观测资料的雨滴形状和分布特征订正、提高降水测量精度提供了理论依据和方法。
|
| 关 键 词： | 小旋转椭球雨滴群 正态分布 雷达气象方程 雷达反射率因子 雷达定量测雨 |
| 文章编号： | 1000-0534（2007）01-0128-07 |
| 修稿时间： | 2006-03-062006-07-03 |
Radar Meteorological Equations for Groups of Rotating Spheroidal Raindrops under Normal Distribution of Their Rotatory Axes and Correction for Rainfall Measurement |
| |
| WU Ying,WANG Zhen-hui,CHEN Zhong-rong,HU Fang-chao.Radar Meteorological Equations for Groups of Rotating Spheroidal Raindrops under Normal Distribution of Their Rotatory Axes and Correction for Rainfall Measurement[J].Plateau Meteorology,2007,26(1):128-134. |
| |
| Authors: | WU Ying WANG Zhen-hui CHEN Zhong-rong HU Fang-chao |
| |
| Abstract: | A radar meteorological equation,which is applicable to small rotating spheroid raindrop groups,has been presented for polarized radar wavesand radar reflectivity factors for normal distributionof rotary axes have been redefined.For radar observationsof precipitation with non-sphericalraindrops,correction coefficients have beennumerically calculated and figured with different variancesand expectations of axes orientation under the condition of normal distribution.The results provide atheoreticalbasefor improving the accuracy of quantitative measurement of rainfall. |
| |
| Keywords: | Small rotating spheroid raindrop groups Normal distribution Radar meteorological equation Radar reflectivity factor Quantitative measurement rainfall of radar |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
