气候变化领域集成服务门户(CCPortal): Evaluation of the Stratospheric and Tropospheric Bromine Burden Over Fairbanks, Alaska Based on Column Retrievals of Bromine Monoxide

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DOI	10.1029/2020JD032896
	Evaluation of the Stratospheric and Tropospheric Bromine Burden Over Fairbanks, Alaska Based on Column Retrievals of Bromine Monoxide
	Wales P.A.; Salawitch R.J.; Lind E.S.; Mount G.H.; Canty T.P.; Chance K.; Choi S.; Donohoue D.; Kurosu T.P.; Simpson W.R.; Suleiman R.M.
发表日期	2021
ISSN	2169897X
卷号	126 期号:2
英文摘要	In spring 2011, columns of bromine monoxide (BrO) were retrieved over Fairbanks, Alaska using a ground-based multifunction differential optical absorption spectroscopy (MFDOAS) instrument. MFDOAS vertical column BrO is consistently lower than retrievals from the satellite-based Ozone Monitoring Instrument (OMI), with a relative bias of 20 ± 14%. Numerous tropical-based studies suggest that 5 ± 2 parts per trillion (ppt) of bromine from very short-lived substances (VSLS) reaches the stratosphere. We evaluate upper limits on the contribution of VSLS to stratospheric bromine by treating the column retrievals of BrO as purely stratospheric and modeling the ratio of BrO to total inorganic bromine. The OMI and MFDOAS retrievals respectively present 8 and 5 ppt upper limits on the stratospheric injection of VSLS, and kinetic uncertainties in the daytime partitioning of bromine species decrease both values by ∼1.7 ppt. The OMI-based estimate is in agreement with the 5 ppt tropical-based value for stratospheric injection of VSLS if the tropospheric column of BrO is 1.5 × 1013 molecules cm−2 over Fairbanks, which is within the range of uncertainty of a second ground-based instrument that monitored tropospheric BrO during the campaign. Because our ground-based instruments detected no BrO near the surface, this value for tropospheric BrO would originate from higher altitudes in the troposphere and is in agreement with previous retrievals of background tropospheric BrO. Our calculations of tropospheric BrO over Fairbanks are most sensitive to uncertainties in the stratospheric loading of VSLS, followed by the difference between the OMI and MFDOAS retrievals of BrO. © 2020. American Geophysical Union. All Rights Reserved.
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/185533
作者单位	Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, United States; NASA Goddard Space Flight Center, Now at: Global Modeling and Assimilation Office, Greenbelt, MD, United States; Now at: Universities Space Research Association, Columbia, MD, United States; Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States; Department of Civil and Environmental Engineering, Laboratory for Atmospheric Research, Washington State University, Pullman, WA, United States; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States; NASA Goddard Space Flight Center, Atmospheric Chemistry and Dynamics Laboratory, Greenbelt, MD, United States; Science Systems and Applications Inc., Lanham, MD, Unite...
推荐引用方式 GB/T 7714	Wales P.A.,Salawitch R.J.,Lind E.S.,et al. Evaluation of the Stratospheric and Tropospheric Bromine Burden Over Fairbanks, Alaska Based on Column Retrievals of Bromine Monoxide[J],2021,126(2).
APA	Wales P.A..,Salawitch R.J..,Lind E.S..,Mount G.H..,Canty T.P..,...&Suleiman R.M..(2021).Evaluation of the Stratospheric and Tropospheric Bromine Burden Over Fairbanks, Alaska Based on Column Retrievals of Bromine Monoxide.Journal of Geophysical Research: Atmospheres,126(2).
MLA	Wales P.A.,et al."Evaluation of the Stratospheric and Tropospheric Bromine Burden Over Fairbanks, Alaska Based on Column Retrievals of Bromine Monoxide".Journal of Geophysical Research: Atmospheres 126.2(2021).