气候变化领域集成服务门户(CCPortal): Ground-based retrievals of aerosol column absorption in the UV spectral region and their implications for GEMS measurements

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DOI	10.1016/j.rse.2020.111759
	Ground-based retrievals of aerosol column absorption in the UV spectral region and their implications for GEMS measurements
	Go S.; Kim J.; Mok J.; Irie H.; Yoon J.; Torres O.; Krotkov N.A.; Labow G.; Kim M.; Koo J.-H.; Choi M.; Lim H.
发表日期	2020
ISSN	00344257
卷号	245
英文摘要	Quantifying the spectral variation of column aerosol absorption in the ultraviolet (UV) and visible (Vis) wavelengths is required for accurate satellite-based aerosol and trace-gas retrievals. Retrievals of the column-averaged imaginary part of refractive index and single scattering albedo (SSA) in the UV–Vis range have been performed at Yonsei University, Seoul, Korea, since 2016 by combining co-located measurements from the NASA Aerosol Robotic Network (AERONET) Cimel sun-sky photometer, the Ultraviolet Multifilter Rotating Shadowband Radiometer (UV-MFRSR), the SKYNET Prede sky radiometer, and the NASA Pandora sun spectrometer. We investigated the spectral variation of column-averaged imaginary part of refractive index for UV–Vis wavelengths to refine models used in our aerosol retrieval algorithm to process measurements from the upcoming Geostationary Environment Monitoring Satellite (GEMS). The retrieved imaginary part of refractive index for highly absorbing fine pollution particles (BC), dust (DS), and non-absorbing (NA) particles in the selected UV–Vis range (380–440 nm) showed 0–20%, 30%, and 0–40% of spectral dependence, respectively. Retrievals of Ozone Monitoring Instrument (OMI) measurement data using the improved aerosol model showed improved correlation with AERONET data compared to the old algorithm that did not properly account for aerosol absorption effects. These results corroborate the advantage of using local climatology derived from ground-based UV–Vis spectral aerosol absorption measurements for satellite GEMS aerosol retrievals over East Asia. Moreover, this study reveals that spectral variations in the UV column aerosol absorption in East Asia differ from those in other regions. © 2020 Elsevier Inc.
英文关键词	Absorption; Aerosol; GEMS; UV
语种	英语
scopus关键词	Air pollution; Gems; Geostationary satellites; NASA; Radiometers; Refractive index; Ultraviolet spectrometers; Aerosol retrieval algorithms; Aerosol robotic networks; Environment monitoring; Ozone monitoring instruments; Process measurements; Single scattering albedo; Spectral dependences; Ultraviolet multifilter rotating shadowband radiometers; Aerosols; AERONET; aerosol; albedo; algorithm; ozone; refractive index; satellite imagery; spectral analysis; ultraviolet radiation; wavelength; Seoul [South Korea]; South Korea
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179307
作者单位	Department of Atmospheric Sciences, Yonsei University, Seoul, South Korea; Earth System Science Interdisciplinary Center, College Park, MD, United States; NASA Goddard Space Flight Center (GSFC), Greenbelt, MD, United States; Center for Environmental Remote Sensing, Chiba University, Chiba, Japan; National Institute of Environmental Research, Incheon, South Korea; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Universities Space Research Association, Columbia, MD, United States
推荐引用方式 GB/T 7714	Go S.,Kim J.,Mok J.,et al. Ground-based retrievals of aerosol column absorption in the UV spectral region and their implications for GEMS measurements[J],2020,245.
APA	Go S..,Kim J..,Mok J..,Irie H..,Yoon J..,...&Lim H..(2020).Ground-based retrievals of aerosol column absorption in the UV spectral region and their implications for GEMS measurements.Remote Sensing of Environment,245.
MLA	Go S.,et al."Ground-based retrievals of aerosol column absorption in the UV spectral region and their implications for GEMS measurements".Remote Sensing of Environment 245(2020).