Research Highlights: July 2018

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Improving VIIRS Day/Night Bands On-orbit Performance

Jack Xiong1, H. Chen2, and C. Sun3

(1: Code, 618: NASA GSFC, 2: SSAI, 3: GST)

Figure 1
Figure 2
Improving VIIRS Day/Night Bands (DNB) on-orbit performance by using time-dependent calibration coefficients from its on-board calibrator and scene dependent stray light corrections.

Name: Jack Xiong, NASA/GSFC, Code 618
Phone: 301-614-5957


Data Sources:

Technical Description of Figures

Scientific significance, societal relevance, and relationships to future missions:

Suomi-NPP has successfully operated for more than 6 years since its launch in October 2011. S-NPP VIIRS data products, derived from mission consistent calibration coefficients, have been generated and used by the science community and users for their assessments and studies of various critical environmental parameters of the earth's system. Its Day/Night Bands (DNB) stray light contamination was characterized pre-launch and a scene dependent correction algorithm was developed based on the post-launch performance. The stray light correction coefficients have been regularly updated due to changes of S-NPP DNB responses over the course of its mission. Methodologies developed and lessons from S-NPP stray light characterization and correction have been adopted and applied to recently launched NOAA 20 VIIRS and, as expected, will also provide potential applications for future JPSS missions and other earth-observing sensors.