|
|
|
| Research and implementation of an improved vertical liquid integral water content algorithm |
| Lei Yongheng1,2, Su Debin2, Hu Jian3 |
1.Hunan Meteorological Technical Equipment Center,Changsha 410007;
2.Chengdu Information Engineering University,Chengdu 610225;
3 Hunan Meteorological Bureau,Changsha 410007 |
|
|
|
|
Abstract Based on the M-P distribution of raindrop spectrum,the vertical liquid water content is calculated.Radar detection has the actual situation that the vertical resolution is insufficient.The beam filling vertical area is used for linear interpolation method to estimate the reflectance intensity value.The 3D discretization data accumulation after interpolation process obtains the space VIL calculation,realizing the true color display of the VIL product with 1km×1km resolution based on the matlab program design.Combined with the VIL algorithm,the cause of the calculation error is analyzed.Combined with an example of a strong weather process on April 9,2013 in Yongzhou,the algorithm has a good application effect through verification analysis.
|
|
Received: 23 August 2018
|
|
|
|
|
|
| [1] |
GREENE D R,CLARK R A.Vertically integrated liquid water-A new analysis tool[J].Monthly Weather Review,1972,100(7):548.
|
| [2] |
胡明宝.天气雷达探测与应用[M].北京:气象出版社,2007.
|
| [3] |
FRENCH M N,ANDRIEU H,KRAJEWSKI W F.Uncertainty in vertically integrated liquid water content due to radar reflectivity observation error[J].Journal of Atmospheric and Oceanic Technology,1995,12(2):404-409.
|
| [4] |
BOUDEVILLAIN B,ANDRIEU H.Assessment of vertically integrated liquid (VIL) water content radar measurement[J].Journal of Atmospheric & Oceanic Technology,2003,20(20):807-819.
|
| [5] |
付双喜,安林,康凤琴,等.VIL 在识别冰雹云中的应用及估测误差分析[J].高原气象,2004,23(06):810-814.
|
| [6] |
张维全,李闻生,李洋.新一代天气雷达VIL产品修正方法初探[J].气象与环境学报,2006,22(02):11-17.
|
| [7] |
肖艳姣,马中元,李中华.改进的雷达回波顶高、垂直积分液态水含量及其密度算法[J].暴雨灾害,2009,28(03):210-214.
|
|
|
|
2019, Vol. 36 
