| 滇西北高原局地暴雨雷达回波特征 |
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| 引用本文： | 张崇莉,李淑华,赖云华,甘德芳. 滇西北高原局地暴雨雷达回波特征[J]. 气象科技, 2010, 38(2): 197-200 |
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| 作者姓名： | 张崇莉 李淑华 赖云华 甘德芳 |
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| 作者单位： | 云南省丽江市气象局,丽江,674100 |
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| 摘 要： | 利用丽江CINRAD/CC雷达观测资料,并结合天气背景及当地地形,对2008年9月11日出现在华坪站的单点性暴雨天气进行详细分析发现:雷达回波强度场上,由前端积状云和后部层积云组成的混合降水回波移过测站;速度场上出现了"逆风区"的特征,并在其移动路径周围出现了强降水天气;5.2 km以上高度的垂直风廓线显示,冷平流控制时系统维持,冷平流减弱时系统减弱;500 hPa副高较强,冷空气南下回流,致使700 hPa切变线东南移,产生强降水。华坪县特殊的地形与该次暴雨的风场结构相配合形成迎风坡的动力抬升条件,是此次暴雨的又一特征。
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| 关 键 词： | 单点性暴雨 混合降水回波 逆风区 切变线 动力抬升 |
| 收稿时间： | 2009-02-27 |
| 修稿时间： | 2009-11-25 |
Radar Echo Features of a Rainstorm over Northwestern Yunnan |
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| Zhang Chongli,Li Shuhu,Lai Yunhua and Gan Defang. Radar Echo Features of a Rainstorm over Northwestern Yunnan[J]. Meteorological Science and Technology, 2010, 38(2): 197-200 |
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| Authors: | Zhang Chongli Li Shuhu Lai Yunhua Gan Defang |
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| Affiliation: | Zhang Chongli Li Shuhua Lai Yunhua Gan Defang(Lijiang Meteorological Bureau,Yunnan Province,Lijiang 674100) |
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| Abstract: | A detailed analysis is made of a single-point rainstorm on 11 September 2008 over the northwestern plateau of Yunnan Province through Lijiang(CINRAD/CC) Doppler radar data,in combination with the weather background and local topography.The results indicate: on the echo intensity field,there was a mixed precipitation echo composed by cumulus in the front and stratocumulus in the rear;there was an adverse wind area on the velocity field,around the moving path of which heavy precipitation occurred;cold advecti... |
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| Keywords: | single-point rainstorm mixed precipitation echo adverse wind area shear line terrain lifting |
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