| 甘肃陇南地震灾区2次暴雨过程的诊断对比 |
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| 引用本文： | 马敬霞,肖志强,魏邦宪.甘肃陇南地震灾区2次暴雨过程的诊断对比[J].甘肃气象,2009,27(2):127-134. |
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| 作者姓名： | 马敬霞 肖志强 魏邦宪 |
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| 作者单位： | 甘肃省陇南市气象局,甘肃,武都,746000 |
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| 摘 要： | 利用常规气象资料和NCEP再分析资料,对2008年6月30日和7月21日发生在陇南灾区的2次暴雨过程进行诊断对比分析.结果表明:"6.30"暴雨过程的主要影响系统是切变低涡,水汽条件和能量条件都相当好,但垂直上升运动不太剧烈,致使陇南灾区达到暴雨标准的站数相对较少;"7.21"暴雨的主要影响系统是高原低涡,能量条件不如"6.30"暴雨充分,但水汽及垂直运动条件较好,形成暴雨的3个条件基本满足,致使陇南灾区50%以上的站达到暴雨标准.而暴雨的成灾程度与暴雨中心落区有密切关系.
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| 关 键 词： | 暴雨过程 诊断分析 甘肃陇南灾区 |
Diagnosis and Comparison of Two Similar Storm Cases in Longnan Earthquake Disaster Area |
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| MA Jingxia,XIAO Zhiqiang,WEI Bangxian.Diagnosis and Comparison of Two Similar Storm Cases in Longnan Earthquake Disaster Area[J].Gansu Meteorology,2009,27(2):127-134. |
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| Authors: | MA Jingxia XIAO Zhiqiang WEI Bangxian |
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| Institution: | Longnan Meteorological Bureau of Gansu Province;Wudu 746000;China |
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| Abstract: | Based on the conventional observations and NCEP reanalysis data,the two similar storm cases occurred on June 30 and July 21,2008 in Longnan disaster area were diagnosed.The analytic conclusions are as follows: The shearing low vortex was the main influence system of "6.30" heavy rainfall,but less ascending motion resulted in less stations's precipitation up to 50 mm. The plateau low vortex was the main influence system of "7.21" storm rainfall,because of better vapor condition and strong vertical ascending ... |
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| Keywords: | Longnan disaster area heavy rainfall diagnostic analysis |
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