[1]彭建东,张丽凡,黄待静.闽北春季冰雹CINRAD雷达产品特征分析[J].气象研究与应用,2018,39(03):48-52.
 Peng Jiandong,Zhang Lifan,Huang Daijing.Characteristics of CINRAD radar products for spring hail in North Fujian[J].Journal of Meteorological Research and Application,2018,39(03):48-52.
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闽北春季冰雹CINRAD雷达产品特征分析()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第39卷
期数:
2018年03期
页码:
48-52
栏目:
天气气候
出版日期:
2018-09-30

文章信息/Info

Title:
Characteristics of CINRAD radar products for spring hail in North Fujian
作者:
彭建东1 张丽凡2 黄待静1
1. 南平市气象局, 福建 南平 353000;
2. 建瓯市气象局, 福建 建瓯 353100
Author(s):
Peng Jiandong1 Zhang Lifan2 Huang Daijing1
1. Nanping Meteorological Bureau, Nanping Fujian 353000;
2. Jianou Meteorological Bureau, Jianou Fujian 353100
关键词:
闽北冰雹雷达特征参数
Keywords:
Northern Fujianhailradar characteristic parameter
分类号:
P49
摘要:
利用建阳新一代天气雷达特征参数资料,结合常规探空资料和实况资料,对近6a(2008~2013)闽北春季(3~6月)地面降雹出现前垂直积分液态含水量(VIL)的演变特征、强中心高度(Ht)、风暴顶高(TOP)和组合反射率强度(CR)临界值进行统计分析发现:降雹前,94%的雹云单体的VIL出现了"跃增"现象,1个体扫时间△VIL ≥ 12kg·m-2,且跃增后的VIL ≥ 31kg·m-2,VIL跃增时间提前量△T平均为5.7个体扫时间;降雹前6min内总样本的Ht平均值高度陡降了1.4km,所有的小冰雹降雹前VIL都只有一次跃增,降雹前VIL多次跃增的,冰雹直径都较大。
Abstract:
Based on the characteristic parameters of Jianyang new generation weather radar, combined with conventional sounding data and observation data, the evolution characteristics of vertical integrated liquid water content (VIL), strong center height (Ht), storm top height (TOP), and combined reflectance intensity (CR) threshold before the occurrence of spring (MarchJune) hail in North Fujian in recent 6 years (2008-2013) were studied. The results showed that the VIL of 94% hail cloud monomers had a significant "jump" phenomenon, in a datum time, △VIL ≥ 12 kg·m-2, and after jumping the VIL ≥ 31 kg·m-2, the average advance time (△T) of VIL jump was 5.7 datum time. Six minutes before hailing, the Ht average height of the total sample dramatically declined 1.4 km. There was only a jump of the VIL before small hailing, when the VIL has many jumps before hailing, the hail diameter is generally large.

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备注/Memo

备注/Memo:
收稿日期:2017-12-20。
作者简介:彭建东(1988-),男,硕士,工程师,主要从事短时临近天气预报预警工作。
更新日期/Last Update: 1900-01-01