许梓秀,王鹏云. 1989. 冷锋前部中尺度雨带特征及其机制分析[J]. 气象学报, 47(2):199-206, doi:10.11676/qxxb1989.025
冷锋前部中尺度雨带特征及其机制分析
MESOSCALE RAINBANDS AHEAD OF COLD FRONTS IN NORTHERN CHINA AND THEIR DYNAMICAL MECHANISM ANALYSES
投稿时间:1988-01-06  修订日期:1988-06-23
DOI:10.11676/qxxb1989.025
中文关键词:  
英文关键词:
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作者单位
许梓秀 国家气象局气象科学研究院 
王鹏云 国家气象局气象科学研究院 
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中文摘要:
      通过对移经京、津、冀地区的33次冷锋前部雨带的雷达观测分析,归纳出三种不同类型的暖区中尺度雨带:平行类、交角类和垂直类.讨论了各类雨带的宏观特征、发生源地、传播方式以及与强对流天气的关系.并用对称不稳定、开尔文-赫姆霍兹型不稳定、切变不稳定等理论对各类雨带发生发展的可能机制作了初步分析探讨.
英文摘要:
      From the radar observations of 33 cold frontal systems which passed Beijing-Tianjing and Zhangjiakou area from May to August during 1963-1979, it was recognized that among the 33 systems there existed mesoscale rainbands in the warm sectors ahead of 31 cold fronts. According to the orientation, movement, formation and development of these rainbands, they are divided into three types:parallel, angulate, and perpendicular. In this paper the basic characteristics, generating sources and propagation of the three types of rainbands and the severe connective weather associated with the bands are presented. The possible mechanisms responsible for the formation and development of these rainbands are also briefly discussed.
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