干旱区生态环境知识资源中心(Arid): Ice-Nucleating Particle Concentrations and Sources in Rainwater Over the Third Pole, Tibetan Plateau

Arid

DOI	10.1029/2020JD033864
	Ice-Nucleating Particle Concentrations and Sources in Rainwater Over the Third Pole, Tibetan Plateau
	Chen, J.; Wu, Z. J.; Wu, G. M.; Gong, X. D.; Wang, F.; Chen, J. C.; Shi, G. L.; Hu, M.; Cong, Z. Y.
通讯作者	Wu, ZJ (corresponding author), Peking Univ, Coll Environm Sci & Engn, Stale Key Joint Lab Environm Simulat & Pollut Con, Beijing, Peoples R China. ; Wu, ZJ (corresponding author), Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing, Peoples R China. ; Wu, GM (corresponding author), Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China. ; Wu, GM (corresponding author), Univ Chinese Acad Sci, Beijing, Peoples R China.
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2021
卷号	126 期号:9
英文摘要	The ice-nucleating particles (INPs) modulate the microphysics and radiative properties of clouds. However, less is known concerning their abundance and sources in the most pristine and climatic sensitive regions, such as the Tibetan Plateau (TP). Here, to our best knowledge, we conduct the first investigation on INPs in rainwater collected in the TP region under mixed-phase cloud conditions. The value of INP concentrations varies from 0.002 to 0.675 L-1 air over the temperature range from -7.1 to -27.5 degrees C. This is within the INP spectra derived from precipitation under worldwide geophysical conditions and is also comparable with INP concentrations in the Arctic regions. The heat-sensitive INPs account for 57% +/- 30% of the observed INPs at -20 degrees C and become increasingly important at higher temperatures, indicating biological particles as major contributors to INPs at temperatures above -20 degrees C over the TP, especially on the day with additional input of biogenic materials carried by dust particles. Chemical analysis demonstrates that the rainwater components are mixture of dust particles, marine aerosol, and anthropogenic pollutants. Combined with the backward trajectory analysis, we show that dust particles transported from the surrounding deserts and originated from ground surface of TP may contribute to the heat-resistant INPs at temperatures below -20 degrees C. Plain Language Summary Ice-nucleating particles (INPs) can catalyze the ice crystal formation through heterogeneous ice nucleation and thus play a profound role in the aerosol-cloud interaction. The Tibetan Plateau (TP) is one of the most vulnerable climate systems in the word, but we have very less knowledge on INPs over the TP, impeding our understanding of the aerosol-cloud interaction in this region. Here, the INP number concentrations and sources are quantified and identified over the TP under conditions relevant to mixed-phase clouds on a basis of comprehensive study on chemical composition and INP properties of rainwater. We show that biological particles are the dominant contributor of INPs at temperatures above -20 degrees C. The rainwater chemical components are mixtures of dust, marine aerosol, and anthropogenic pollutants. Dust particles may contribute to the heat-resistant INPs at temperatures below -20 degrees C.
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000656152800023
WOS关键词	IMMERSION FREEZING BEHAVIOR ; SOURCE APPORTIONMENT ; AIR-POLLUTION ; BLACK CARBON ; MICROPHYSICAL PROPERTIES ; PARTICULATE-MATTER ; ASH PARTICLES ; NAM CO ; PRECIPITATION ; AEROSOL
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	北京大学 ; 中国科学院青藏高原研究所 ; 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/2XILL650/350836
作者单位	[Chen, J.; Wu, Z. J.; Chen, J. C.; Hu, M.] Peking Univ, Coll Environm Sci & Engn, Stale Key Joint Lab Environm Simulat & Pollut Con, Beijing, Peoples R China; [Wu, Z. J.; Hu, M.] Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing, Peoples R China; [Wu, G. M.; Cong, Z. Y.] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China; [Gong, X. D.] Leibniz Inst Tropospher Res, Leipzig, Germany; [Wang, F.; Shi, G. L.] Nankai Univ, Coll Environm Sci & Engn, State Environm Protect Key Lab Urban Ambient Air, Tianjin, Peoples R China; [Wu, G. M.] Univ Chinese Acad Sci, Beijing, Peoples R China; [Gong, X. D.] Washington Univ, Ctr Aerosol Sci & Engn, Dept Energy Environm & Chem Engn, St Louis, MO 63110 USA
推荐引用方式 GB/T 7714	Chen, J.,Wu, Z. J.,Wu, G. M.,et al. Ice-Nucleating Particle Concentrations and Sources in Rainwater Over the Third Pole, Tibetan Plateau[J]. 北京大学, 中国科学院青藏高原研究所, 南京信息工程大学,2021,126(9).
APA	Chen, J..,Wu, Z. J..,Wu, G. M..,Gong, X. D..,Wang, F..,...&Cong, Z. Y..(2021).Ice-Nucleating Particle Concentrations and Sources in Rainwater Over the Third Pole, Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,126(9).
MLA	Chen, J.,et al."Ice-Nucleating Particle Concentrations and Sources in Rainwater Over the Third Pole, Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 126.9(2021).