[1]罗思泽,黄庆国,杨兰,等.梧州前汛期强对流天气多普勒雷达特征分析[J].气象研究与应用,2016,37(04):18-21.
　Luo Si-ze,Huang Qing-guo,Yang Lan,et al.Characteristic analysis on doppler radar of strong convective weather in pre-rainy season of Wuzhou[J].Journal of Meteorological Research and Application,2016,37(04):18-21.
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梧州前汛期强对流天气多普勒雷达特征分析()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第37卷
期数:
2016年04期
页码:
18-21
栏目:
天气气候
出版日期:
2017-02-20

文章信息/Info

Title:
Characteristic analysis on doppler radar of strong convective weather in pre-rainy season of Wuzhou
作者:
罗思泽1;  黄庆国1;  杨兰2;  黄业斐1;  何荣1
1. 岑溪市气象局, 广西岑溪 543200;
2. 梧州市气象局, 广西梧州 543002
Author(s):
Luo Si-ze1;  Huang Qing-guo1;  Yang Lan2;  Huang Ye-fei1;  He Rong1
1. Cenxi Municipal Meteorological Service, Cenxi Guangxi 543200;
2. Wuzhou Municipal Meteorological Service, 543002
关键词:
前汛期; 强对流天气; 雷达回波特征
Keywords:
pre-rainy season; strong convective weather; radar echo characteristic
分类号:
P46
摘要:
对前汛期发生在梧州地区的各类强对流天气在梧州多普勒天气雷达上的表现特征进行分析得出:短时强降雨回波常表现为块状回波,回波顶的外形比较平滑整齐,回波中心的强度在45 dBz以上;在速度特征上,在径向速度图上常出现逆风区;雷雨大风的雷达回波速度特征表现为,风向随高度顺时针旋转,存在较强的暖平流,在高仰角的速度图上(一般仰角在4.3°)有大风核存在;而冰雹等冷式切变回波,在速度特征上,零速度线出现90°折角,风向随高度逆转,可分析出存在冷平流。
Abstract:
Based on the doppler radar data of all kinds of strong convective weather during the pre-rainy season in wuzhou, the characteristics were analyzed, in which the the short-term heavy rainfall echo shows massive echo with smooth and neat appearance, and the intensity of the echo center is over 45 dBz;On the speed characteristics, there is upwind area on the radial velocity map; On the contrary, the characteristic of radar echoes of strong thunderstorm present the clockwise rotation with height with a strong warm advection, there is a strong wind nuclear in high elevation velocity diagram (4.3 °) general elevation; But the shear echo such as hail, on the speed characteristics, the zero velocity line exists 90 ° Angle, wind direction reverses with height, which can analysis the existence of cold advection.

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备注/Memo

备注/Memo:
收稿日期:2016-08-15。
基金项目:梧州市气象局科研课题2014005(西江流域梧州地区前汛期强对流天气雷达回波特征识别研究)。
作者简介:罗思泽(1981-),贵州省黎平县人,工程师,主要从事短时临近气象预报工作。
更新日期/Last Update: 1900-01-01