| 摘要: |
| 利用安装在南京气象学院的天气多普勒雷达收集到的雷达资料,分析了在江淮流域大暴雨后期静止锋附近风场的中尺度结构特征。结果表明:静止锋附近的近地面层为冷平流,往上为暖平流。低层吹东北风,随着高度增大,风速减小,在2km高度附近风速最小,以后转为西南风,并反映出水平风场中存在垂直切变。 |
| 关键词: 天气多普勒雷达 径向速度 风场 反演 暴雨 |
| DOI： |
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| ANALYSIS OF CHARACTERISTICS OF KINEMATICS OF WIND FIELDS RETRIEVED WITH DATA OF RADIAL VELOCITY OF SINGLE DOPPLER WEATHER RADAR |
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Dai Tiepi, Liang Hanming, Chen zhongrong, Chen Ming
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Nanjing Institute of Meteorology, Nanjing, 210044
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| Abstract: |
| In this paper, the characteristics of mesoscale structures of wind fields near the stationary front in the late period of a heavy rain in the Jiang-Huai area are analysed based on the wind data of doppler radar located in the Nanjing Institute of meteorology. The results indicate that a cold advection occurs at the near-surface layer, over which lies a warm advection. A north-easterly prevails at lower levels, wind speed decreasing with height and dropping to its minimum at about 2 km. followed by a change in direction to southwest. A verticol wind shear in the horizontal wind field is thus revealed. |
| Key words: Doppler weather radar Radial velocity Wind field Retrieval Rainstorm |
