| 2010-05-25宁夏暴雨诊断分析 |
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| 引用本文： | 杨宝玲,方宁莲,郑鹏徽.2010-05-25宁夏暴雨诊断分析[J].宁夏工程技术,2011,10(1):12-15,19. |
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| 作者姓名： | 杨宝玲 方宁莲 郑鹏徽 |
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| 作者单位： | 宁夏石嘴山市气象局,宁夏,石嘴山,753000 |
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| 摘 要： | 利用常规气象资料、卫星云图及T213数值预报产品资料,应用天气学分析及诊断分析方法.对2010-05-25发生在宁夏的区域性暴雨过程进行了诊断分析.分析表明,高空急流的动量下传、高低空急流的适宜配置所产生的动力场的耦合作用为此次区域性暴雨的发生、发展提供了动力条件;此次暴雨过程充足稳定的水汽主要源自孟加拉湾和南海,是在有利的"东高西低"大尺度环流背景下,由200hPa高空急流5、00hPa西南中空急流、700hPa偏南低空急流、700hPa和850hPa低涡、切变线及地面"冷锋"共同作用造成的,暴雨落区位于地面冷锋前部、低空急流左前端.
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| 关 键 词： | 暴雨 急流 低涡 诊断分析 |
Diagnostic analysis of a rainstorm in Ningxia May 25th, 2010 |
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| YANG Baoling,FANG Ninglian,ZHENG Penghui.Diagnostic analysis of a rainstorm in Ningxia May 25th, 2010[J].Ningxia Engineering Technology,2011,10(1):12-15,19. |
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| Authors: | YANG Baoling FANG Ninglian ZHENG Penghui |
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| Affiliation: | YANG Baoling,FANG Ninglian,ZHENG Penghui(Shizuishan Meteorological Bureau,Shizuishan 753000,China) |
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| Abstract: | Based on the routine meteorological data,satellite cloud photographs,numerical forecast products T213,applying synoptic analysis and diagnostic analysis methods,the heavy rain which was analyzed occurred in Ningxia on May 25th,2010.The results show that the strengthening of a high-level jet stream and its momentum downward-spreading impelled the maintenance of the low-level jet,and the coupling of the high-and low-level jets provided a proper dynamical condition for the occurrence and development of the tor... |
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| Keywords: | rainstorm jet flow low level vortex diagnosis analysis |
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