28 August 2017 Suomi-NPP VIIRS day–night band on-orbit calibration and performance
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J. of Applied Remote Sensing, 11(3), 036019 (2017). doi:10.1117/1.JRS.11.036019
The Suomi national polar-orbiting partnership Visible Infrared Imaging Radiometer Suite (VIIRS) instrument has successfully operated since its launch in October 2011. The VIIRS day–night band (DNB) is a panchromatic channel covering wavelengths from 0.5 to 0.9  μm that is capable of observing Earth scenes during both daytime and nighttime at a spatial resolution of 750 m. To cover the large dynamic range, the DNB operates at low-, middle-, and high-gain stages, and it uses an on-board solar diffuser (SD) for its low-gain stage calibration. The SD observations also provide a means to compute the gain ratios of low-to-middle and middle-to-high gain stages. This paper describes the DNB on-orbit calibration methodology used by the VIIRS characterization support team in supporting the NASA Earth science community with consistent VIIRS sensor data records made available by the land science investigator-led processing systems. It provides an assessment and update of the DNB on-orbit performance, including the SD degradation in the DNB spectral range, detector gain and gain ratio trending, and stray-light contamination and its correction. Also presented in this paper are performance validations based on Earth scenes and lunar observations, and comparisons to the calibration methodology used by the operational interface data processing segment.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hongda Chen, Xiaoxiong Xiong, Chengbo Sun, Xuexia Chen, Kwofu Chiang, "Suomi-NPP VIIRS day–night band on-orbit calibration and performance," Journal of Applied Remote Sensing 11(3), 036019 (28 August 2017). https://doi.org/10.1117/1.JRS.11.036019 Submission: Received 13 February 2017; Accepted 3 August 2017
Submission: Received 13 February 2017; Accepted 3 August 2017






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