An Observation-Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index

doi:10.1029/2019GL083673

GSTDTAP > 气候变化

DOI	10.1029/2019GL083673
	An Observation-Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index
	Cooper, Matthew J.1; Martin, Randall, V 1,2; Hammer, Melanie S.1; McLinden, Chris A.3
	2019-07-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2019
卷号	46 期号:14 页码:8442-8452
文章类型	Article
语种	英语
国家	Canada; USA
英文摘要	Retrievals of nitrogen dioxide (NO2) and other trace gases from satellite measurements rely on accurate calculation of an air mass factor (AMF) to account for the atmospheric light path. Scattering and absorption of sunlight by aerosols affects AMFs by impacting the sensitivity of satellite-observed radiances to NO2 at different altitudes. Current NO2 retrievals either do not explicitly account for these effects or rely on aerosol information from an external source. Here we investigate a method for quantifying the impact of aerosols on NO2 AMFs using the Absorbing Aerosol Index, a satellite-based measure of light absorption and scattering by aerosols. We find a robust relationship between the Absorbing Aerosol Index and the aerosol correction to NO2 AMFs using the GEOS-Chem chemical transport model and the LIDORT radiative transfer model. This relationship enables estimating the impact of aerosols on AMFs using observed Absorbing Aerosol Index values, thus yielding an observation-based aerosol correction for NO2 retrievals.
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000481818900063
WOS关键词	AIR-MASS FACTOR ; MAX-DOAS OBSERVATIONS ; TROPOSPHERIC NO2 ; SATELLITE-OBSERVATIONS ; LIGHT-ABSORPTION ; GLOBAL DISTRIBUTION ; REACTIVE NITROGEN ; ORGANIC-CARBON ; OPTICAL DEPTH ; DUST AEROSOL
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
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/185326
专题	气候变化
作者单位	1.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada; 2.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA; 3.Environm & Climate Change Canada, Air Qual Res Div, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Cooper, Matthew J.,Martin, Randall, V,Hammer, Melanie S.,et al. An Observation-Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(14):8442-8452.
APA	Cooper, Matthew J.,Martin, Randall, V,Hammer, Melanie S.,&McLinden, Chris A..(2019).An Observation-Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index.GEOPHYSICAL RESEARCH LETTERS,46(14),8442-8452.
MLA	Cooper, Matthew J.,et al."An Observation-Based Correction for Aerosol Effects on Nitrogen Dioxide Column Retrievals Using the Absorbing Aerosol Index".GEOPHYSICAL RESEARCH LETTERS 46.14(2019):8442-8452.