气候变化领域集成服务门户(CCPortal): Development of a nighttime shortwave radiative transfer model for remote sensing of nocturnal aerosols and fires from VIIRS

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DOI	10.1016/j.rse.2020.111727
	Development of a nighttime shortwave radiative transfer model for remote sensing of nocturnal aerosols and fires from VIIRS
	Wang J.; Zhou M.; Xu X.; Roudini S.; Sander S.P.; Pongetti T.J.; Miller S.D.; Reid J.S.; Hyer E.; Spurr R.
发表日期	2020
ISSN	00344257
卷号	241
英文摘要	The launch of the Visible Infrared Imaging Radiometer Suite (VIIRS) on board the Sumo-NPP satellite in 2011 ushered in a new era of using visible light and shortwave radiation at night to characterize aerosol and fire distributions from space. In order to exploit the full range of unprecedented observational capabilities of VIIRS, we have developed a nighttime shortwave radiative transfer model capability in the UNified and Linearized Radiative Transfer Model (UNL-VRTM). This capability is based on the use of additional source functions to treat illumination from the Moon, from fires, and from artificial lights. We have applied this model to address fundamental questions associated with the VIIRS sensing of aerosol and fire at night. Detailed description of model developments and validation (either directly with surface measurements of lunar spectra or indirectly through cross validation) are presented. Our analysis reveals that: (a) when convolution with the broad-range (500–900 nm) relative spectral response (RSR) function of the VIIRS Day-Night Band (DNB) is omitted, AOD retrieval from the DNB have uncertainties up to a factor of two in conditions with low or moderate AOD (<0.5 in mid-visible); (b) using a wavelength independent spectrum for the surface illumination source can lead to an AOD bias of −10% over surfaces illuminated by light-emitting diodes and fluorescent lamps, and −30% illuminated by high-pressure sodium lamps; and (c) a DNB-equivalent narrow band for AOD retrieval over the surfaces illuminated by the three types of bulbs studied in this paper is found to be centered at 585 nm at which the look-up table can be generated for AOD retrieval from DNB. Furthermore, while uncertainty in AOD retrievals from the DNB decreases as AOD increases, fire characterization can be affected by AOD; for a smoke-scenario AOD of 2.0, the DNB and SWIR (1.6 μm) radiances can be reduced by 50% depending on the fire area fraction and temperature within VIIRS pixel. DNB is overall more sensitive to smaller and cooler fires than SWIR and can be used to retrieve AOD over bright surfaces. Finally, three-dimensional (3D) radiative transfer effects and the non-collimated nature of most artificial light sources are neglected in this 1D radiative transfer (plane-parallel) model, resulting in possibly large uncertainties (e.g., the inability to reproduce side-illumination of clouds by city lights) that should be studied in future. © 2020 Elsevier Inc.
英文关键词	Nighttime shortwave radiative transfer; Nocturnal; Remote sensing of aerosols; Remote sensing of fires; VIIRS
语种	英语
scopus关键词	Aerosols; Fires; Infrared radiation; Light sources; Radiative transfer; Smoke; Space optics; Surface measurement; Table lookup; Thermography (imaging); Uncertainty analysis; Artificial light source; High pressure sodium lamps; Nocturnal; Radiative transfer model; Relative spectral response; Threedimensional (3D) radiative transfers; VIIRS; Visible infrared imaging radiometer suites; Remote sensing; aerosol; nocturnal activity; radiative transfer; remote sensing; shortwave radiation; VIIRS; wavelength
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/179371
作者单位	Department of Chemical and Biochemical Engineering, Iowa Technology Institute, The University of Iowa, 4133 Seamans Center, Iowa City, IA 52242, United States; Interdisciplinary Graduate Program in Geo-Informatics, The University of Iowa, Iowa City, IA 52242, United States; Joint Center for Earth Systems Technology, University of Maryland – Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, United States; Department of Finance, The University of Iowa, Iowa City, IA 52242, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109, United States; Cooperative Institute for Research in the Atmosphere, Colorado State University, Fort Collins, CO 80523, United States; Marine Meteorology Division, Naval Research Laboratory, Monterey, CA 93943, United States; RT Solutions Inc., Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Wang J.,Zhou M.,Xu X.,et al. Development of a nighttime shortwave radiative transfer model for remote sensing of nocturnal aerosols and fires from VIIRS[J],2020,241.
APA	Wang J..,Zhou M..,Xu X..,Roudini S..,Sander S.P..,...&Spurr R..(2020).Development of a nighttime shortwave radiative transfer model for remote sensing of nocturnal aerosols and fires from VIIRS.Remote Sensing of Environment,241.
MLA	Wang J.,et al."Development of a nighttime shortwave radiative transfer model for remote sensing of nocturnal aerosols and fires from VIIRS".Remote Sensing of Environment 241(2020).