气候变化领域集成服务门户(CCPortal): Detection of HCOOH, CH3OH, CO, HCN, and C2H6 in Wildfire Plumes Transported Over Toronto Using Ground-Based FTIR Measurements From 2002

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DOI	10.1029/2019JD031924
	Detection of HCOOH, CH3OH, CO, HCN, and C2H6 in Wildfire Plumes Transported Over Toronto Using Ground-Based FTIR Measurements From 2002–2018
	Yamanouchi S.; Strong K.; Lutsch E.; Jones D.B.A.
发表日期	2020
ISSN	2169897X
卷号	125 期号:16
英文摘要	The Fourier transform infrared (FTIR) spectrometer at the University of Toronto Atmospheric Observatory has been operational since 2002, collecting solar absorption spectra from which atmospheric trace gas profiles and columns are retrieved. The time series of total columns of CH3OH and HCOOH over Toronto are presented here for the first time, along with those for CO, HCN, and C2H6. Transport of wildfire plumes over the site results in enhanced columns of biomass burning species. Here we report the detection of biomass burning enhancement events between 2002 and 2018. Several simultaneous enhancements of CO, HCN, and C2H6 were observed, and the measured columns were used to derive emission ratios and emission factors for HCN and C2H6 for fire events in 2012, 2015, and 2017. From these events, which included plumes from both boreal and temperate forest fires, emission ratios with respect to CO were derived using CO lifetimes of 30 and 61 days. HCN emission ratios range between 0.0037 ± 0.0003 and 0.0057 ± 0.0008, while C2H6 emission ratios vary from 0.00122 ± 0.0015 to 0.019 ± 0.001. Enhanced columns of CH3OH and HCOOH were also observed during the 2015 and 2017 events, and emission ratios were derived but have greater uncertainties due to shorter lifetimes and other sources for these gases. The FLEXPART, HYSPLIT, and GEOS-Chem models were used for source attribution and traveltime estimation. GEOS-Chem was run in the tagged CO simulation mode and successfully captured the CO enhancements from fires for the 2015 and 2017 events. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	biomass burning; emission factor; emission ratio; FTIR; Toronto
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185819
作者单位	Department of Physics, University of Toronto, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Yamanouchi S.,Strong K.,Lutsch E.,等. Detection of HCOOH, CH3OH, CO, HCN, and C2H6 in Wildfire Plumes Transported Over Toronto Using Ground-Based FTIR Measurements From 2002–2018[J],2020,125(16).
APA	Yamanouchi S.,Strong K.,Lutsch E.,&Jones D.B.A..(2020).Detection of HCOOH, CH3OH, CO, HCN, and C2H6 in Wildfire Plumes Transported Over Toronto Using Ground-Based FTIR Measurements From 2002–2018.Journal of Geophysical Research: Atmospheres,125(16).
MLA	Yamanouchi S.,et al."Detection of HCOOH, CH3OH, CO, HCN, and C2H6 in Wildfire Plumes Transported Over Toronto Using Ground-Based FTIR Measurements From 2002–2018".Journal of Geophysical Research: Atmospheres 125.16(2020).