大气科学2012，Vol.36Issue(1)：1-10,10.
3mm多普勒云雷达测量反演云内空气垂直速度的研究
A Case Study of Deriving Vertical Air Velocity from 3-mm Cloud Radar
摘要
Abstract
The vertically pointing cloud radar (WACR) can measure not only the reflectivity of cloud particles but also Doppler spectra. Retrieval of vertical air motions in cloud is demonstrated using measurements by WACR at Shouxian site during a period of 1 November 2008. The distribution characteristics of reflectivity, Doppler mean velocity, and spectral width are initially discussed. Retrieval of vertical air motions is demonstrated by the liquid droplets trace method and the improved ω0-Z relationship method which is based on the liquid droplets trace method. The results are comparatively analysed with Doppler spectra. The liquid droplets trace method performs great effect in the retrieval of vertical air motions in the weak turbulence. When the turbulence is strong, the error cannot be ignored. The improved method presents good performance in the area with strong turbulence.关键词
云雷达WACR/多普勒谱/小粒子示踪法/ω0-Z关系法/垂直速度Key words
WACR/Doppler spectra/liquid droplets trace method/ω0- Z relationship method/vertical air motions分类
天文与地球科学引用本文复制引用
彭亮,陈洪滨,李柏..3mm多普勒云雷达测量反演云内空气垂直速度的研究[J].大气科学,2012,36(1):1-10,10.基金项目
国家重点基础研究发展计划项目2010CB950804 （）
