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DOI | 10.5194/acp-19-13209-2019 |
Biogenic secondary organic aerosol sensitivity to organic aerosol simulation schemes in climate projections | |
Cholakian, Arineh1,2,3,4; Beekmann, Matthias1,2; Coll, Isabelle1,2; Ciarelli, Giancarlo1,2,5; Colette, Augustin3 | |
2019-10-25 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:20页码:13209-13226 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA |
英文摘要 | Organic aerosol (OA) can have important impacts on air quality and human health because of its large contribution to atmospheric fine aerosol and its chemical composition, including many toxic compounds. Simulation of this type of aerosol is difficult, since there are many unknowns in its nature and mechanism and processes involved in its formation. These uncertainties become even more important in the context of a changing climate because different mechanisms, and their representation in atmospheric models, imply different sensitivities to changes in climate variables. In this work, the effects caused by using different schemes to simulate OA are explored. Three schemes are used in this work: (1) a molecular scheme; (2) a standard volatility basis set (VBS) scheme with anthropogenic aging; and (3) a modified VBS scheme containing functionalization, fragmentation and formation of nonvolatile secondary organic aerosol (SOA) for all semi-volatile organic compounds (SVOCs). Five years of historic and five years of future simulations were performed using the RCP8.5 climatic scenario. The years were chosen in a way to maximize the differences between future and historic simulations. The study focuses on biogenic SOA (BSOA), since the contribution of this fraction of BSOA among OA is major in both historic and future scenarios (40 % to 78 % for different schemes in historic simulations). Simulated OA and BSOA concentrations with different schemes are different, with the molecular scheme showing the highest concentrations among the three schemes. The comparisons show that for the European area, the modified VBS scheme shows the highest relative change between future and historic simulations, while the molecular scheme shows the lowest (a factor of 2 lower). These changes are largest over the summer period for BSOA because the higher temperatures increase terpene and isoprene emissions, the major precursors of BSOA. This increase is partially offset by a temperature-induced shift of SVOCs to the gas phase. This shift is indeed scheme dependent, and it is shown that it is the least pronounced for the modified VBS scheme including a full suite of aerosol aging processes, comprising also formation of nonvolatile aerosol. For the Mediterranean Sea, without BVOC emissions, the OA changes are less pronounced and, at least on an annual average, more similar between different schemes. Our results warrant further developments in organic aerosol schemes used for air quality modeling to reduce their uncertainty, including sensitivity to climate variables (temperature). |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000492836400002 |
WOS关键词 | VOLATILITY-BASIS-SET ; MEDITERRANEAN AREA ; MODEL PERFORMANCE ; AIR-POLLUTION ; SOA FORMATION ; EMISSIONS ; GAS ; ISOPRENE ; IMPACT ; PARIS |
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/187781 |
专题 | 地球科学 |
作者单位 | 1.Univ Paris Est Creteil, UMR CNRS 7583, LISA, Creteil, France; 2.Univ Paris, IPSL, Paris, France; 3.Parc Technol ALATA, Inst Natl Environm Ind & Risques, Verneuil En Halatte, France; 4.Univ Bordeaux, UMR 5805, EPOC, Pessac, France; 5.Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA |
推荐引用方式 GB/T 7714 | Cholakian, Arineh,Beekmann, Matthias,Coll, Isabelle,et al. Biogenic secondary organic aerosol sensitivity to organic aerosol simulation schemes in climate projections[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(20):13209-13226. |
APA | Cholakian, Arineh,Beekmann, Matthias,Coll, Isabelle,Ciarelli, Giancarlo,&Colette, Augustin.(2019).Biogenic secondary organic aerosol sensitivity to organic aerosol simulation schemes in climate projections.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(20),13209-13226. |
MLA | Cholakian, Arineh,et al."Biogenic secondary organic aerosol sensitivity to organic aerosol simulation schemes in climate projections".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.20(2019):13209-13226. |
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