Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-12699-2018 |
Exploring non-linear associations between atmospheric new-particle formation and ambient variables: a mutual information approach | |
Zaidan, Martha A.1,2,3; Haapasilta, Ville3; Relan, Rishi4; Paasonen, Pauli1; Kerminen, Veli-Matti1; Junninen, Heikki1,5; Kulmala, Markku1,6; Foster, Adam S.3,7,8 | |
2018-09-03 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:17页码:12699-12714 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; Denmark; Estonia; Peoples R China; Japan; Germany |
英文摘要 | Atmospheric new-particle formation (NPF) is a very non-linear process that includes atmospheric chemistry of precursors and clustering physics as well as subsequent growth before NPF can be observed. Thanks to ongoing efforts, now there exists a tremendous amount of atmospheric data, obtained through continuous measurements directly from the atmosphere. This fact makes the analysis by human brains difficult but, on the other hand, enables the usage of modern data science techniques. Here, we calculate and explore the mutual information (MI) between observed NPF events (measured at Hyytiala, Finland) and a wide variety of simultaneously monitored ambient variables: trace gas and aerosol particle concentrations, meteorology, radiation and a few derived quantities. The purpose of the investigations is to identify key factors contributing to the NPF. The applied mutual information method finds that the formation events are strongly linked to sulfuric acid concentration and water content, ultraviolet radiation, condensation sink (CS) and temperature. Previously, these quantities have been well-established to be important players in the phenomenon via dedicated field, laboratory and theoretical research. The novelty of this work is to demonstrate that the same results are now obtained by a data analysis method which operates without supervision and without the need of understanding the physics deeply. This suggests that the method is suitable to be implemented widely in the atmospheric field to discover other interesting phenomena and their relevant variables. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443399500001 |
WOS关键词 | CONTINENTAL BOUNDARY-LAYER ; CLOUD CONDENSATION NUCLEI ; AEROSOL-SIZE DISTRIBUTION ; YANGTZE-RIVER DELTA ; SULFURIC-ACID ; FORMATION EVENTS ; BOREAL-FOREST ; NUMBER CONCENTRATION ; NUCLEATION EVENTS ; ORGANIC AEROSOL |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30676 |
专题 | 地球科学 |
作者单位 | 1.Univ Helsinki, Inst Atmospher & Earth Syst Res Phys, Helsinki 00560, Finland; 2.Aalto Univ, Aalto Sci Inst, Sch Sci, Espoo 00076, Finland; 3.Aalto Univ, Dept Appl Phys, Espoo 00076, Finland; 4.Tech Univ Denmark, Dept Appl Math & Comp Sci, DK-2800 Lyngby, Denmark; 5.Univ Tartu, Inst Phys, Ulikooli 18, EE-50090 Tartu, Estonia; 6.Beijing Univ Chem Technol, Aerosol & Haze Lab, Beijing 100096, Peoples R China; 7.Kanazawa Univ, WPI Nano Life Sci Inst WPI NanoLSI, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan; 8.Grad Sch Mat Sci Mainz, Staudinger Weg 9, D-55128 Mainz, Germany |
推荐引用方式 GB/T 7714 | Zaidan, Martha A.,Haapasilta, Ville,Relan, Rishi,et al. Exploring non-linear associations between atmospheric new-particle formation and ambient variables: a mutual information approach[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(17):12699-12714. |
APA | Zaidan, Martha A..,Haapasilta, Ville.,Relan, Rishi.,Paasonen, Pauli.,Kerminen, Veli-Matti.,...&Foster, Adam S..(2018).Exploring non-linear associations between atmospheric new-particle formation and ambient variables: a mutual information approach.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(17),12699-12714. |
MLA | Zaidan, Martha A.,et al."Exploring non-linear associations between atmospheric new-particle formation and ambient variables: a mutual information approach".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.17(2018):12699-12714. |
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