干旱区生态环境知识资源中心(Arid): 一次致灾冰雹的超级单体风暴雷达回波特征分析

Arid

	一次致灾冰雹的超级单体风暴雷达回波特征分析
其他题名	Analysis on Radar Echo Characteristic of a Supercell Storm Disaster Hail
	赵俊荣; 郭金强; 杨景辉; 杨建成
来源期刊	高原气象
ISSN	1000-0534
出版年	2011
卷号	30 期号:6 页码:1681-1689
中文摘要	利用石河子C波段多普勒天气雷达资料,对2010年6月28日下午发生在准噶尔盆地南缘石河子垦区北部沙漠边缘地带的强冰雹超级单体风暴的雷达回波演变特征进行了详细分析。结果表明,该超级单体风暴前进方向的右侧出现了弓形回波,左前侧和右后侧分别出现了"V"字型缺口;沿入流方向穿过最强回波位置的反射率因子垂直剖面呈现出典型的有界弱回波区、回波悬垂和有界弱回波区左侧的强大回波墙,最大回波强度出现在沿回波墙狭长区域的下部,其值达到70dBz;相应的径向速度上出现了中气旋,该中气旋的发展和维持使得超级单体弓形回波发展并维持;强冰雹发生在有界弱回波区、垂直累积液态水含量大值区和中气旋重合的区域内;可用中气旋提前30min预警短时冰雹,其反射率因子垂直剖面上的宽大有界弱回波及其回波悬垂和回波墙下部的强回波中心强度(70dBz)可作为预警大冰雹的预警指标。
英文摘要	Using C-band Doppler weather radar data in Shihezi,radar echo evolution characteristic of sever hail storm supercell in the southern edge of Junggar basin,the northern edge of the desert area Shihezi on 28 June 2010 is analyzed.The results showed that the right side of supercell storm forward appeared bow echo,and its rear left and right side respectively appeared V notch;the vertical profile of reflectivity along the inflow direction of the strongest echoes through the location showed the typical bounded weak echo area,the strong echo wall on the left of echo overhang and bounded weak echo area,the maximum echo intensity appeared in the narrow area along the lower part of echo wall,and its value is 70 dBz;the radial velocity presented mesocyclone,the development and maintenance of mesocyclone made the supercell bow echo development and maintenance;severe hail occurred in weak wave zone,large value of the vertically integrated liquid water content and the overlap region in the cyclone area;mesocyclone can warn the hail ahead 30 min,the bounded weak echo of vertical profile for reflectivity and its echo hanging and strong echo center intensity(70 dBz) under echo wall take as an early warning indicator.
中文关键词	冰雹 ; 超级单体 ; 弓形回波 ; V字型缺口 ; 有界弱回波区 ; 中气旋
英文关键词	Hail Supercell Bow echo V shaped notch Bounded weak echo region Mesocyclone
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:4409597
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226656
作者单位	新疆石河子气象局, 石河子, 新疆 832000, 中国
推荐引用方式 GB/T 7714	赵俊荣,郭金强,杨景辉,等. 一次致灾冰雹的超级单体风暴雷达回波特征分析[J],2011,30(6):1681-1689.
APA	赵俊荣,郭金强,杨景辉,&杨建成.(2011).一次致灾冰雹的超级单体风暴雷达回波特征分析.高原气象,30(6),1681-1689.
MLA	赵俊荣,et al."一次致灾冰雹的超级单体风暴雷达回波特征分析".高原气象 30.6(2011):1681-1689.