globalchange  > 气候减缓与适应
DOI: 10.1029/2018JD028475
Scopus记录号: 2-s2.0-85051063261
论文题名:
Sources and Secondary Production of Organic Aerosols in the Northeastern United States during WINTER
作者: Schroder J.C.; Campuzano-Jost P.; Day D.A.; Shah V.; Larson K.; Sommers J.M.; Sullivan A.P.; Campos T.; Reeves J.M.; Hills A.; Hornbrook R.S.; Blake N.J.; Scheuer E.; Guo H.; Fibiger D.L.; McDuffie E.E.; Hayes P.L.; Weber R.J.; Dibb J.E.; Apel E.C.; Jaeglé L.; Brown S.S.; Thornton J.A.; Jimenez J.L.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:14
起始页码: 7771
结束页码: 7796
语种: 英语
英文关键词: aerosols ; biomass burning ; organic aerosol (OA) ; secondary organic aerosol (SOA) ; SOA production ; WINTER
英文摘要: Most intensive field studies investigating aerosols have been conducted in summer, and thus, wintertime aerosol sources and chemistry are comparatively poorly understood. An aerosol mass spectrometer was flown on the National Science Foundation/National Center for Atmospheric Research C-130 during the Wintertime INvestigation of Transport, Emissions, and Reactivity (WINTER) 2015 campaign in the northeast United States. The fraction of boundary layer submicron aerosol that was organic aerosol (OA) was about a factor of 2 smaller than during a 2011 summertime study in a similar region. However, the OA measured in WINTER was almost as oxidized as OA measured in several other studies in warmer months of the year. Fifty-eight percent of the OA was oxygenated (secondary), and 42% was primary (POA). Biomass burning OA (likely from residential heating) was ubiquitous and accounted for 33% of the OA mass. Using nonvolatile POA, one of two default secondary OA (SOA) formulations in GEOS-Chem (v10-01) shows very large underpredictions of SOA and O/C (5×) and overprediction of POA (2×). We strongly recommend against using that formulation in future studies. Semivolatile POA, an alternative default in GEOS-Chem, or a simplified parameterization (SIMPLE) were closer to the observations, although still with substantial differences. A case study of urban outflow from metropolitan New York City showed a consistent amount and normalized rate of added OA mass (due to SOA formation) compared to summer studies, although proceeding more slowly due to lower OH concentrations. A box model and SIMPLE perform similarly for WINTER as for Los Angeles, with an underprediction at ages <6 hr, suggesting that fast chemistry might be missing from the models. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113497
Appears in Collections:气候减缓与适应

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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Department of Chemistry, University of Colorado Boulder, Boulder, CO, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Department of Chemistry, Université de Montréal, Montréal, QC, Canada; Air Quality Research Division, Environment and Climate Change Canada, Toronto, ON, Canada; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Atmospheric Chemistry Observation and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Department of Chemistry, University of California, Irvine, CA, United States; Institute for the Study of Earth, Ocean, and Space, University of New Hampshire, Durham, NH, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; Chemical Science Division, NOAA Earth System Research Laboratory, Boulder, CO, United States

Recommended Citation:
Schroder J.C.,Campuzano-Jost P.,Day D.A.,et al. Sources and Secondary Production of Organic Aerosols in the Northeastern United States during WINTER[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(14)
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