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Proceedings Paper

Vicarious validation of straylight correction for VIIRS day/night band using Dome-C
Author(s): Shi Qiu; Xi Shao; Changyong Cao; Wenhui Wang
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Paper Abstract

The Day/Night Band (DNB) of the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard Suomi National Polar-orbiting Partnership (Suomi-NPP) represents a major advancement in night time imaging capabilities. The VIIRS DNB sensor is affected by stray light. Straylight effect on the DNB instrument is due to solar illumination entering the optical path after the satellite passes through the day-night terminator projected on Earth’s surface. It results in an overall increase in the recorded radiance values. This effect is more significant during solstice. After the launch of Suomi-NPP in October 2011, there was a gray haze in radiance images observed by DNB due to straylight, and straylight correction has been implemented to remove this effect. This study performs vicarious validation of straylight correction for VIIRS DNB band using Dome C in Antarctic. Nadir observations of these high latitude regions by VIIRS are selected during perpetual night season, i.e. from April to July during the year 2014 under various lunar phases. The dependence of observed radiance over Dome C on lunar phases and the cross-comparison between DNB observations for events with/without straylight are shown in this paper. This paper presents an effective method to assess the performance of straylight correction for VIIRS DNB in Southern Hemisphere.

Paper Details

Date Published: 8 September 2015
PDF: 12 pages
Proc. SPIE 9607, Earth Observing Systems XX, 96072H (8 September 2015); doi: 10.1117/12.2188401
Show Author Affiliations
Shi Qiu, Univ. of Maryland, College Park (United States)
Xi Shao, Univ. of Maryland, College Park (United States)
Changyong Cao, NOAA National Environmental Satellite, Data, and Information Service (United States)
Wenhui Wang, ERT, Inc. (United States)

Published in SPIE Proceedings Vol. 9607:
Earth Observing Systems XX
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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