气候变化领域集成服务门户(CCPortal): A sulfuric acid nucleation potential model for the atmosphere

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DOI	10.5194/acp-22-8287-2022
	A sulfuric acid nucleation potential model for the atmosphere
	Johnson, Jack S.; Jen, Coty N.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	8287
结束页码	8297
卷号	22 期号:12 页码:11
英文摘要	Observations over the last decade have demonstrated that the atmosphere contains potentially hundreds of compounds that can react with sulfuric acid to nucleate stable aerosol particles. Consequently, modeling atmospheric nucleation requires detailed knowledge of nucleation reaction kinetics and spatially and temporally resolved measurements of numerous precursor compounds. This study introduces the Nucleation Potential Model (NPM), a novel nucleation model that dramatically simplifies the diverse reactions between sulfuric acid and any combination of precursor gases. The NPM predicts 1 nm nucleation rates from only two measurable gas concentrations, regardless of whether all precursor gases are known. The NPM describes sulfuric acid nucleating with a parameterized base compound at an effective base concentration, [B-eff]. [B-eff] captures the ability of a compound or mixture to form stable clusters with sulfuric acid and is estimated from measured 1 nm particle concentrations. The NPM is applied to experimental and field observations of sulfuric acid nucleation to demonstrate how [B-eff] varies for different stabilizing compounds, mixtures, and sampling locations. Analysis of previous field observations shows distinct differences in [B-eff] between locations that follow the emission sources and stabilizing compound concentrations for that region. Overall, the NPM allows researchers to easily model nucleation across diverse environments and estimate the concentration of non-sulfuric acid precursors using a condensation particle counter.
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:000816694900001
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/273111
作者单位	Carnegie Mellon University; Carnegie Mellon University
推荐引用方式 GB/T 7714	Johnson, Jack S.,Jen, Coty N.. A sulfuric acid nucleation potential model for the atmosphere[J],2022,22(12):11.
APA	Johnson, Jack S.,&Jen, Coty N..(2022).A sulfuric acid nucleation potential model for the atmosphere.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(12),11.
MLA	Johnson, Jack S.,et al."A sulfuric acid nucleation potential model for the atmosphere".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.12(2022):11.