气候变化领域集成服务门户(CCPortal): Biomass Burning Over the United States East Coast and Western North Atlantic Ocean: Implications for Clouds and Air Quality

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DOI	10.1029/2021JD034916
	Biomass Burning Over the United States East Coast and Western North Atlantic Ocean: Implications for Clouds and Air Quality
	Mardi A.H.; Dadashazar H.; Painemal D.; Shingler T.; Seaman S.T.; Fenn M.A.; Hostetler C.A.; Sorooshian A.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:20
英文摘要	Biomass burning (BB) aerosol events were characterized over the U.S. East Coast and Bermuda over the western North Atlantic Ocean (WNAO) between 2005 and 2018 using a combination of ground-based observations, satellite data, and model outputs. Days with BB influence in an atmospheric column (BB days) were identified using criteria biased toward larger fire events based on anomalously high AERONET aerosol optical depth (AOD) and MERRA-2 black carbon (BC) column density. BB days are present year-round with more in June–August (JJA) over the northern part of the East Coast, in contrast to more frequent events in March–May (MAM) over the southeast U.S. and Bermuda. BB source regions in MAM are southern Mexico and by the Yucatan, Central America, and the southeast U.S. JJA source regions are western parts of North America. Less than half of the BB days coincide with anomalously high PM2.5 levels in the surface layer, according to data from 14 IMPROVE sites over the East Coast. Profiles of aerosol extinction suggest that BB particles can be found in the boundary layer and into the upper troposphere with the potential to interact with clouds. Higher cloud drop number concentration and lower drop effective radius are observed during BB days. In addition, lower liquid water path is found during these days, especially when BB particles are present in the boundary layer. While patterns are suggestive of cloud-BB aerosol interactions over the East Coast and the WNAO, additional studies are needed for confirmation. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	ACTIVATE; aerosol-cloud interaction; biomass burning; EVS-3; HSRL; smoke
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/236950
作者单位	Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, United States; Science Systems and Applications, Inc., Hampton, VA, United States; NASA Langley Research Center, Hampton, VA, United States; Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ, United States
推荐引用方式 GB/T 7714	Mardi A.H.,Dadashazar H.,Painemal D.,et al. Biomass Burning Over the United States East Coast and Western North Atlantic Ocean: Implications for Clouds and Air Quality[J],2021,126(20).
APA	Mardi A.H..,Dadashazar H..,Painemal D..,Shingler T..,Seaman S.T..,...&Sorooshian A..(2021).Biomass Burning Over the United States East Coast and Western North Atlantic Ocean: Implications for Clouds and Air Quality.Journal of Geophysical Research: Atmospheres,126(20).
MLA	Mardi A.H.,et al."Biomass Burning Over the United States East Coast and Western North Atlantic Ocean: Implications for Clouds and Air Quality".Journal of Geophysical Research: Atmospheres 126.20(2021).