干旱区生态环境知识资源中心(Arid): 一次暴雨过程云中液态水微物理属性垂直分布

Arid

	一次暴雨过程云中液态水微物理属性垂直分布
其他题名	Vertical Distribution of Microphysical Properties of Liquid Water in Cloud during a Rainstorm
	李浩 1; 邓军英 1; 刘岩 1; 王文彩 2; 安静宇 1; 陈勇航 1; 何清 3; 杨莲梅 3; 丁逸洲 1; 张萍 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2015
卷号	32 期号:1 页码:161-167
中文摘要	采用美国宇航局NASA的Cloud Sat卫星加载的云廓线雷达反演资料2B-CWC-RVOD和2B-CLDCLASS,以2008年4月28日发生在新疆北部沿天山一带的暴雨过程为例,分析云中液态水粒子有效半径、粒子数浓度、液态水含量等微物理属性的垂直分布特征。结果表明:此次暴雨过程中,云层分布在1~12 km高度,但云中液态水分布在6 km以下。云中液态水粒子半径的高值区出现在云层的中部,而峰值出现在约3 km高度处,云体边缘是低值区,且有效半径小于5mum的粒子在所有高度均有分布,占所有粒子的71.19%,在3~4 km高度层分布比例最大。大于20mum的粒子仅占1.27%,且集中分布于云中液态水中部2~5 km;液态水含量随云层高度的增加而有所降低,液态水含量大于500 mg·m~(-3)仅占0.08%,且分布在2~3 km;云中液态水粒子数浓度在垂直高度上存在明显的分层现象,云层越低,云中液态水粒子数浓度越高,粒子数浓度小于20个·cm~(-3),占25.26%,且随高度的增加而增加,而浓度大于60个·cm~(-3)的粒子占12.28%,主要分布在2~5 km,且云层中部偏下处分布较多。
英文摘要	Xinjiang is a typical arid and semiarid region,although the annual precipitation is only 165.5 mm, flood and landslide caused by heavy rainfall are the main natural disasters.Therefore,the forecast of heavy rainfall is extremely important.Over the years,many researches about them have been carried out from different aspects.However,it was few to research the processes of them from the microphysical parameters of precipitation cloud using satellite data.In fact,microphysical structure of cloud affects the intensity and amount of precipitation.A case study on a heavy rainfall occurred along the Tianshan Mountains in north Xinjiang,China on April 28,2008 was carried out.Cloud profiling radar retrieval data 2B-CLDClASS and 2B-CWC-RVOD onboard CloudSat satellite from NASA were employed.The vertical distribution of cloud microphysical properties,such as the effective radius of water drops,concentration of water drop number and liquid water content,was analyzed.The results showed that cloud height was extended from about 1 km and to 12 km during the rainfall,but water cloud was distributed below 6 - km height.The proportion of water drops (≤5mum) was 71.19%,these water drops were distributed all over the clouds,the maximum distribution ratio occurred in a layer 3 - 4 km high.Liquid water content was in a decrease trend with the increase of cloud layer height.There was vertically an obvious stratification of concentration of water drop number,and the lower the cloud layer was,the higher the value of concentration of water drop number would be.The proportion of concentration of water drop number less than 20·cm~(-3) accounted for 25.26% and increased with the increase of vertical height,and that more than 60·cm~(-3) was 12.28% and distributed mainly within 2 - 5 km height.
中文关键词	暴雨 ; 云 ; 物理属性 ; 液态水 ; 垂直分布 ; 新疆
英文关键词	Cloud Sat heavy rain CloudSat cloud microphysical properties liquid water vertical distribution Xinjiang
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:5354771
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232693
作者单位	1.东华大学环境科学与工程学院, 上海 201620, 中国; 2.中国海洋大学海洋环境学院, 青岛, 山东 266100, 中国; 3.中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	李浩,邓军英,刘岩,等. 一次暴雨过程云中液态水微物理属性垂直分布[J]. 中国气象局乌鲁木齐沙漠气象研究所,2015,32(1):161-167.
APA	李浩.,邓军英.,刘岩.,王文彩.,安静宇.,...&张萍.(2015).一次暴雨过程云中液态水微物理属性垂直分布.干旱区研究,32(1),161-167.
MLA	李浩,et al."一次暴雨过程云中液态水微物理属性垂直分布".干旱区研究 32.1(2015):161-167.