Uncertainty analysis for SNPP and NOAA-20 VIIRS day-night band

Junqiang Sun; Hongda Chen; Gal Sarid; Chengbo Sun; Daniel Link; Xiaoxiong Xiong

doi:10.1117/12.2632306

3 October 2022 Uncertainty analysis for SNPP and NOAA-20 VIIRS day-night band

Junqiang Sun, Hongda Chen, Gal Sarid, Chengbo Sun, Daniel Link, Xiaoxiong Xiong

Proceedings Volume 12232, Earth Observing Systems XXVII; 122320O (2022) https://doi.org/10.1117/12.2632306
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

VIIRS day-night band (DNB) covers a wavelength range from 500 nm to 900 nm, has three gain stages enabling a dynamic range of 7 orders of magnitude, and is calibrated by a solar diffuser. In this paper, the calibration uncertainty of the DNB is analyzed for both SNPP and NOAA-20 VIIRS instruments. It is shown that the uncertainties of the DNB for all gain stages, detectors, half angle mirror sides, and aggregation modes are much smaller than the uncertainty specifications of the band, which is 5%, 10%, and 100% for low, middle, and high gain stage, respectively.

Conference Presentation

Citation Download Citation

Junqiang Sun, Hongda Chen, Gal Sarid, Chengbo Sun, Daniel Link, and Xiaoxiong Xiong "Uncertainty analysis for SNPP and NOAA-20 VIIRS day-night band", Proc. SPIE 12232, Earth Observing Systems XXVII, 122320O (3 October 2022); https://doi.org/10.1117/12.2632306

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