干旱区生态环境知识资源中心(Arid): Analysis of convective and stratiform precipitation characteristics in the summers of 2014-2019 over Northwest China based on GPM observations

Arid

DOI	10.1016/j.atmosres.2021.105762
	Analysis of convective and stratiform precipitation characteristics in the summers of 2014-2019 over Northwest China based on GPM observations
	Wang, Rui; Tian, Wenshou; Chen, Fengjiao; Wei, Dong; Luo, Jiali; Tian, Hongying; Zhang, Jiankai
通讯作者	Tian, WS (corresponding author), Lanzhou Univ, Coll Atmospher Sci, Key Lab Semi Arid Climate Change, Minist Educ, Lanzhou, Peoples R China.
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2021
卷号	262
英文摘要	The research on three-dimension of precipitation is far less than sufficient due to limited satellite observation over Northwest China. In this study, the characteristics of convective and stratiform precipitation, and the relationships between the two types of precipitation and several atmospheric parameters for the summers of 2014-2019 over Northwest China are explored based on GPM observations, ERA5 reanalysis products and Integrated Global Radiosonde Archive dataset. Stratiform precipitation is dominant over Northwest China and four typical regions, i.e., the Tianshan Mountain (region A), Tarim Basin (region B), Qilian Mountain (region C) and eastern part of Northwest China (region D), are selected. The storm top height of convective precipitation is 2-3 km higher than that of stratiform precipitation, and the highest value (near 16 km) occurs in region C and the lowest value (about 10 km) occurs in region B. Moreover, convective and stratiform precipitation profiles over Northwest China are similar to those over East China. Below 4 km, the largest rain rate appears in region A for convective precipitation and in region D for stratiform precipitation, and the maximum latent heat appears at 4-6 km. The peak frequency of convective precipitation occurs in the afternoon among four regions, whereas the diurnal cycles for stratiform precipitation display a bimodal pattern with the two peaks that more likely occur in the morning and late afternoon. Furthermore, the precipitation intensity changes with total column water vapor and follows an approximate quadratic function in four regions. The precipitation conversion rate and CAPE of convective precipitation are evidently larger than those of stratiform precipitation. A pattern of convergence in the lower troposphere and divergence in the upper troposphere appears, which is conducive to the development of precipitation except region B where downdrafts prevail. Additionally, the most significant warming and humidification exhibit in the middle and lower troposphere respectively during precipitation. This study not only displays the features of convective and stratiform precipitation over Northwest China from the perspective of satellite remote sensing, but also the patterns of atmospheric parameters during precipitation would provide a reference for numerical simulation over arid-semiarid regions of China.
英文关键词	GPM Northwest China Convective precipitation Stratiform precipitation Atmospheric parameters
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000691483700001
WOS关键词	LATENT HEATING PROFILES ; TIBETAN PLATEAU ; TRMM PR ; ARID REGION ; SPECTRAL RETRIEVAL ; DIURNAL-VARIATIONS ; DEEP CONVECTION ; RAINY-SEASON ; WATER-VAPOR ; TEMPERATURE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362670
作者单位	[Wang, Rui; Tian, Wenshou; Luo, Jiali; Tian, Hongying; Zhang, Jiankai] Lanzhou Univ, Coll Atmospher Sci, Key Lab Semi Arid Climate Change, Minist Educ, Lanzhou, Peoples R China; [Chen, Fengjiao] Anhui Meteorol Informat Ctr, Anhui Meteorol Bur, Hefei, Peoples R China; [Wei, Dong] Lanzhou Cent Meteorol Observ, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Wang, Rui,Tian, Wenshou,Chen, Fengjiao,et al. Analysis of convective and stratiform precipitation characteristics in the summers of 2014-2019 over Northwest China based on GPM observations[J]. 兰州大学,2021,262.
APA	Wang, Rui.,Tian, Wenshou.,Chen, Fengjiao.,Wei, Dong.,Luo, Jiali.,...&Zhang, Jiankai.(2021).Analysis of convective and stratiform precipitation characteristics in the summers of 2014-2019 over Northwest China based on GPM observations.ATMOSPHERIC RESEARCH,262.
MLA	Wang, Rui,et al."Analysis of convective and stratiform precipitation characteristics in the summers of 2014-2019 over Northwest China based on GPM observations".ATMOSPHERIC RESEARCH 262(2021).