| 准地转Q矢量诊断场与暴雨关系的分析 |
| |
| 引用本文： | 杨小艳,曹希孝.准地转Q矢量诊断场与暴雨关系的分析[J].气象,1995,21(11):17-21. |
| |
| 作者姓名： | 杨小艳 曹希孝 |
| |
| 作者单位： | 陕西省气象台，中国气象学会 |
| |
| 摘 要： | 应用准地转Ｑ矢量理论，分析了一次连续暴雨过程，共计算了１３个时次的Ｑ矢量及其散度、涡度、地转锋生函数等诊断场，得出了一些有益的结果，发现造成秋末冬初连阴雨中暴雨的内在机制，是冷暖空气相向运动，作顺时针旋转，螺旋式抬升的结果。提出了在实际预报业务中，应用Ｑ矢量场作暴雨落区预报的着眼点。
|
| 关 键 词： | 暴雨 Q矢量诊断场 准地转 |
An Analysis of the Relationship Between Quasi-Geostrophic Q-vector and Heavy Rain |
| |
| Yang Xiaoyan.An Analysis of the Relationship Between Quasi-Geostrophic Q-vector and Heavy Rain[J].Meteorological Monthly,1995,21(11):17-21. |
| |
| Authors: | Yang Xiaoyan |
| |
| Abstract: | Based on quasi-geostrophic Q-vector theory,a case of continuous heavy rain has been analyzed. Q-vector, vorticity and divergence of Q, geostrophic frontogenesis function have been computed in 13 times of the heavy rain case. Results show that the internal mechanics of the heavyrain is a contrary movement of warm and cold air mass with clockwise and spiral lift movement.Further more, the forecast method of heavy rain area with Q-vector field in operational forecast practice is indicated. |
| |
| Keywords: | Q-vector heavy rain forecast |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《气象》浏览原始摘要信息 |
| 点击此处可从《气象》下载免费的PDF全文 |
