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利用Micaps系统中的T2 13数值预报产品和714CD多普勒天气雷达的强度和速度回波资料、径向风场资料 ,对贵阳机场的对流天气进行分析。指出在用常规天气图进行外推预报的同时 ,结合T2 13数值预报物理量预告场提前预测天气趋势和变化 ,利用多普勒雷达连续探测的特点 ,弥补时间和空间密度的不足 ,并运用多普勒速度图和VAD技术来识别和反演流场结构和中小尺度天气系统 ,密切监测对流天气的发生、发展 ,提高了短时预报的精度。
The intensity and velocity echo data and radial wind field data of T213 numerical prediction products and 714CD Doppler weather radar in Micaps system were used to analyze the convective weather in Guiyang Airport. It is pointed out that forecasting the weather trends and changes in advance by using the predictions of physical quantities predicted by the T213 numerical prediction field while extrapolating and forecasting with the conventional weather charts and making use of the characteristics of continuous detection by Doppler radar to make up for the shortages of time and space density, Leh map and VAD technology to identify and reverse the flow field structure and meso-scale weather system, closely monitor the occurrence and development of convective weather and improve the accuracy of short-term forecast.