干旱区生态环境知识资源中心(Arid): Characteristics of Clouds and Raindrop Size Distribution in Xinjiang, Using Cloud Radar Datasets and a Disdrometer

Arid

DOI	10.3390/atmos11121382
	Characteristics of Clouds and Raindrop Size Distribution in Xinjiang, Using Cloud Radar Datasets and a Disdrometer
	Zeng, Yong; Yang, Lianmei; Zhang, Zuyi; Tong, Zepeng; Li, Jiangang; Liu, Fan; Zhang, Jinru; Jiang, Yufei
通讯作者	Zeng, Y (corresponding author), China Meteorol Adm, Inst Desert Meteorol, Urumqi 830002, Peoples R China. ; Zeng, Y (corresponding author), Ctr Cent Asian Atmosphere Sci Res, Urumqi 830002, Peoples R China.
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2020
卷号	11 期号:12
英文摘要	Observation data from March to May 2020 of the Ka-band millimeter-wave cloud radar and disdrometer, located in Xinjiang, a typical arid region of China, were used to study the diurnal variation of clouds and precipitation, raindrop size distribution (DSD), and the physical parameters of raindrops. The results showed that there are conspicuous diurnal changes in clouds and precipitation. There is a decreasing trend of the cloud base height (CBH) from 05:00 to 19:00 CST (China Standard Time, UTC +8) and a rising trend of CBHs from 20:00 to 04:00 CST. The cloud top height (CTH) and the cloud thickness show a rising trend from 03:00 to 05:00 CST, 12:00 to 14:00 CST, and 20:00 to 01:00 CST. The diurnal variation of clouds is mainly driven by wind and temperature closely related to the topography of the study area. There are three apparent precipitation periods during the day, namely, 02:00-09:00 CST, 12:00 CST, and 17:00-21:00 CST. The changes in the physical parameters of raindrops are more drastic and evident with a lower CBH, lower CTH, and higher number of cloud layers from 12:00 to 21:00 CST than other times, which are closely related to day-to-day variations of systems moving through, and incoming solar radiation and the mountain-valley wind circulation caused by the trumpet-shaped topography that opens to the west played a secondary role. The DSD is in agreement with a normalized gamma distribution, and the value of the shape factor mu is significantly different from the fixed mu value in the Weather Research and Forecasting (WRF) Model. The rain in arid Xinjiang had a higher concentration of raindrops and a smaller average raindrop diameter than the rain in other humid regions of the Central and Southeast Asian continent. In the Z-R (radar reflectivity-rain rate) relationship, Z=249R1.20 is derived for stratiform rain, and it is significantly different from humid regions. Using Z/Dm (mass-weighted mean diameter) and R, a new empirical relationship Z/Dm=214R1.20 is established, and improvement is obtained in rain retrieval by using the Z/Dm-R relation relative to the conventional Z-R relation. Additionally, the Nt-R, Dm-R, Nw-R, and Nt-Nw relationships with larger differences from humid regions are established by fitting the power-law equations. These results are useful for improving the data parameters of microphysical processes of WRF and the accuracy of quantitative precipitation estimation in arid regions.
英文关键词	clouds and precipitation cloud radar disdrometer arid area raindrop size distribution
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000601860700001
WOS关键词	DROP SIZE ; STATISTICAL CHARACTERISTICS ; MICROPHYSICS ; SPECTRA ; CLIMATE ; PARAMETERIZATION ; REFLECTIVITY ; SENSITIVITY ; PHYSICS ; WRF
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348737
作者单位	[Zeng, Yong; Yang, Lianmei; Zhang, Zuyi; Tong, Zepeng; Li, Jiangang; Liu, Fan; Zhang, Jinru; Jiang, Yufei] China Meteorol Adm, Inst Desert Meteorol, Urumqi 830002, Peoples R China; [Zeng, Yong; Yang, Lianmei; Zhang, Zuyi; Tong, Zepeng; Li, Jiangang; Liu, Fan; Zhang, Jinru; Jiang, Yufei] Ctr Cent Asian Atmosphere Sci Res, Urumqi 830002, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Yong,Yang, Lianmei,Zhang, Zuyi,et al. Characteristics of Clouds and Raindrop Size Distribution in Xinjiang, Using Cloud Radar Datasets and a Disdrometer[J],2020,11(12).
APA	Zeng, Yong.,Yang, Lianmei.,Zhang, Zuyi.,Tong, Zepeng.,Li, Jiangang.,...&Jiang, Yufei.(2020).Characteristics of Clouds and Raindrop Size Distribution in Xinjiang, Using Cloud Radar Datasets and a Disdrometer.ATMOSPHERE,11(12).
MLA	Zeng, Yong,et al."Characteristics of Clouds and Raindrop Size Distribution in Xinjiang, Using Cloud Radar Datasets and a Disdrometer".ATMOSPHERE 11.12(2020).