干旱区生态环境知识资源中心(Arid): Size-resolved atmospheric ice-nucleating particles during East Asian dust events

Arid

DOI	10.5194/acp-21-3491-2021
	Size-resolved atmospheric ice-nucleating particles during East Asian dust events
	Chen, Jingchuan; Wu, Zhijun; Chen, Jie; Reicher, Naama; Fang, Xin; Rudich, Yinon; Hu, Min
通讯作者	Wu, ZJ (corresponding author), Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China. ; Wu, ZJ (corresponding author), Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing 210044, Peoples R China.
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
EISSN	1680-7324
出版年	2021
卷号	21 期号:5 页码:3491-3506
英文摘要	Asian dust is an important source of atmospheric ice-nucleating particles (INPs). However, the freezing activity of airborne Asian dust, especially its sensitivity to particle size, is poorly understood. In this study we report the first INP measurement of size-resolved airborne mineral dust collected during East Asian dust events. The measured total INP concentrations in the immersion mode ranged from 10(-2) to 10(2) L-1 in dust events at temperatures between 25 and 5 degrees C. The average contributions of heat-sensitive INPs at three temperatures, -10, 15, and 20 degrees C, were 81 +/- 12 %, 70 +/- 15 %, and 38 +/- 21 %, respectively, suggesting that proteinaceous biological materials have a substantial effect on the ice nucleation properties of Asian airborne mineral dust at high temperatures. The dust particles which originated from China's northwest deserts are more efficient INPs compared to those from northern regions. In general, there was no significant difference in the ice nucleation properties between East Asian dust particles and other regions in the world. An explicit size dependence of both INP concentration and surface ice-active-site density was observed. The nucleation efficiency of dust particles increased with increasing particle size, while the INP concentration first increased rapidly and then leveled, due to the significant decrease in the number concentration of larger particles. A new set of parameterizations for INP activity based on size-resolved nucleation properties of Asian mineral dust particles were developed over an extended temperature range (35 to 6 degrees C). These size-dependent parameterizations require only particle size distribution as input and can be easily applied in models.
类型	Article
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000627050600001
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	北京大学 ; 南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349619
作者单位	[Chen, Jingchuan; Wu, Zhijun; Chen, Jie; Fang, Xin; Hu, Min] Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China; [Wu, Zhijun; Hu, Min] Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing 210044, Peoples R China; [Reicher, Naama; Rudich, Yinon] Weizmann Inst Sci, Dept Earth & Planetary Sci, IL-76100 Rehovot, Israel
推荐引用方式 GB/T 7714	Chen, Jingchuan,Wu, Zhijun,Chen, Jie,et al. Size-resolved atmospheric ice-nucleating particles during East Asian dust events[J]. 北京大学, 南京信息工程大学,2021,21(5):3491-3506.
APA	Chen, Jingchuan.,Wu, Zhijun.,Chen, Jie.,Reicher, Naama.,Fang, Xin.,...&Hu, Min.(2021).Size-resolved atmospheric ice-nucleating particles during East Asian dust events.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(5),3491-3506.
MLA	Chen, Jingchuan,et al."Size-resolved atmospheric ice-nucleating particles during East Asian dust events".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.5(2021):3491-3506.