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Proceedings Paper

Correction of detector nonlinearity induced striping in VIIRS day/night band nighttime imagery
Author(s): Yalong Gu; Sirish Uprety; Xi Shao; Slawomir Blonski; Wenhui Wang; Changyong Cao
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Paper Abstract

Striping has been observed in nighttime imagery of VIIRS DNB onboard both Suomi-NPP and NOAA-20 satellites. Image analysis indicated that stripes usually come from the detectors with residual nonlinearity at very low radiance levels, whose High Gain Stage gain coefficients are biased due to the errors in the corresponding DNB gain ratios. Such bias is more than 10% for certain aggregation mode and detectors. By processing the VIIRS recommended operating procedure data with the linear regression method, we corrected the nonlinearity induced bias in the DNB gain ratios. Comparison of the original and the reprocessed DNB nighttime images shows that striping is significantly reduced, in particular under moonlight illumination.

Paper Details

Date Published: 9 September 2019
PDF: 9 pages
Proc. SPIE 11127, Earth Observing Systems XXIV, 111271T (9 September 2019);
Show Author Affiliations
Yalong Gu, Global Science & Technology, Inc. (United States)
Sirish Uprety, Univ. of Maryland, College Park (United States)
Xi Shao, Univ. of Maryland, College Park (United States)
Slawomir Blonski, Global Science & Technology, Inc. (United States)
Wenhui Wang, Global Science & Technology, Inc. (United States)
Changyong Cao, NOAA National Environmental Satellite, Data, and Information Service (United States)


Published in SPIE Proceedings Vol. 11127:
Earth Observing Systems XXIV
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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