气候变化领域集成服务门户(CCPortal): Survival probabilities of atmospheric particles: comparison based on theory,cluster population simulations, and observations in Beijing

CCPortal

DOI	10.5194/acp-22-15071-2022
	Survival probabilities of atmospheric particles: comparison based on theory,cluster population simulations, and observations in Beijing
	Tuovinen, Santeri; Cai, Runlong; Kerminen, Veli-Matti; Jiang, Jingkun; Yan, Chao; Kulmala, Markku; Kontkanen, Jenni
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	15071
结束页码	15091
卷号	22 期号:22 页码:21
英文摘要	Atmospheric new particle formation (NPF) events are regularly observed in urban Beijing, despite high concentrations of background particles which, based on theory, should inhibit NPF due to high values of coagulation sink (CoagS). The survival probability, which depends on both CoagS and particle growth rate (GR), is a key parameter in determining the occurrence of NPF events as it describes the fraction of newly formed particles that survive from a smaller diameter to a larger diameter. In this study, we investigate and compare survival probabilities from 1.5 to 3 nm (J(3)/J(1.5)), from 3 to 6 nm (J(6)/J(3)), and from 6 to 10 nm (J(10)/J(6)) based on analytical formulae, cluster population simulations, and atmospheric observations from Beijing. We find that survival probabilities based on the cluster population simulations and one of the analytical formulae are in a good agreement. However, at low ratios between the background condensation sink (CS) and GR, and at high concentrations of sub-3 nm clusters, cluster-cluster collisions efficiently lower survival probabilities in the cluster population simulations. Due to the large concentrations of clusters and small particles required to considerably affect the survival probabilities, we consider it unlikely that cluster-cluster collisions significantly affect atmospheric survival probabilities. The values of J(10)/J(6) observed in Beijing show high variability, most likely due to influences of primary particle emissions, but are on average in relatively good agreement with the values based on the simulations and the analytical formulae. The observed values of J(6)/J(3) are mostly lower than those predicted based on the simulations and the analytical formulae, which could be explained by uncertainties in CS and GR. The observed values of J(3)/J(1.5) at high CS / GR are much higher than predicted based on the simulations and the analytical formulae. We argue that uncertainties in GR or CS are unlikely to solely explain the observed values of J(3)/J(1.5) under high CS conditions. Thus, further work is needed to better understand the factors influencing survival probabilities of sub-3 nm atmospheric particles in polluted environments.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000890804400001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273807
作者单位	University of Helsinki; Tsinghua University; Nanjing University
推荐引用方式 GB/T 7714	Tuovinen, Santeri,Cai, Runlong,Kerminen, Veli-Matti,et al. Survival probabilities of atmospheric particles: comparison based on theory,cluster population simulations, and observations in Beijing[J],2022,22(22):21.
APA	Tuovinen, Santeri.,Cai, Runlong.,Kerminen, Veli-Matti.,Jiang, Jingkun.,Yan, Chao.,...&Kontkanen, Jenni.(2022).Survival probabilities of atmospheric particles: comparison based on theory,cluster population simulations, and observations in Beijing.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(22),21.
MLA	Tuovinen, Santeri,et al."Survival probabilities of atmospheric particles: comparison based on theory,cluster population simulations, and observations in Beijing".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.22(2022):21.