Preliminary investigations toward nighttime aerosol optical depth retrievals from the VIIRS Day/Night Band

Johnson, R. S.; Zhang, J.; Hyer, E. J.; Miller, S. D.; Reid, J. S.

A great need exists for reliable nighttime aerosol products at high spatial and temporal resolution. In this concept demonstration study, using Visible/Infrared Imager/Radiometer Suite (VIIRS) Day/Night Band (DNB) observations on the Suomi National Polar-orbiting Partnership (NPP) satellite, a new method is proposed for retrieving nighttime aerosol optical depth ( τ) using the contrast between regions with and without artificial surface lights. Evaluation of the retrieved τ values against daytime AERONET data from before and after the overpass of the VIIRS satellite over the Cape Verde, Grand Forks, and Alta Floresta AERONET stations yields a coefficient of determination ( r2) of 0.71. This study suggests that the VIIRS DNB has the potential to provide useful nighttime aerosol detection and property retrievals.

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Johnson, R. S. / Zhang, J. / Hyer, E. J. / et al: Preliminary investigations toward nighttime aerosol optical depth retrievals from the VIIRS Day/Night Band. 2013. Copernicus Publications.

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