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气象:2000,26(7):23-26
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一次特大暴雨垂直速度场的计算与分析
(山东潍坊市气象局,261011)
A Case Study of Vertical Velocity Field of the Cloudburst in August 11-12,1999
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中文摘要: 台风低压环流是影响我国东部地区的重要天气系统之一,对其垂直速度场进行合理的诊断分析是其中的一个关键问题。计算垂直速度的方法有很多种,对诊断分析而言,倾向于运动学方法。这一方法的基本思路是把最后的累积误差“均匀”分摊到各等压面层上去,主要困难是如何处理测风不精确所带来的计算误差。该文针对1999年8月11~12日高密和诸城两市特大暴雨的天气过程,对其垂直速度场进行了合理的计算和订正,结果令人满意。
Abstract:A case study of typhoon cyclone was made by means of synoptic and dynamic methods.Because the practice of weather forcast shows that the vertical velocity may be used as a better indication for cyclone development,the emphasis was put on the computation analyses of the vertical velocity field in the cyclone region.By using interpolation,an attempt was made to compensate the errors in calculating divergence caused by the wind data.The computed results are in agreement with the cyclone observations and the satellite photographs.
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引用文本:
刘龙章,周树华,2000.一次特大暴雨垂直速度场的计算与分析[J].气象,26(7):23-26.
,2000.A Case Study of Vertical Velocity Field of the Cloudburst in August 11-12,1999[J].Meteor Mon,26(7):23-26.