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Remote Sens. 2016, 8(1), 15; doi:10.3390/rs8010015

Radiometric Stability Monitoring of the Suomi NPP Visible Infrared Imaging Radiometer Suite (VIIRS) Reflective Solar Bands Using the Moon

1
Earth Resources Technology Inc., 5830 University Research Ct. #2672, College Park, MD 20740, USA
2
Department of Astronomy, University of Maryland, College Park, MD 20742, USA
3
NOAA/NESDIS/STAR, 5830 University Research Ct., College Park, MD 20740, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Richard Müller and Prasad S. Thenkabail
Received: 20 October 2015 / Revised: 8 December 2015 / Accepted: 15 December 2015 / Published: 25 December 2015
(This article belongs to the Collection Visible Infrared Imaging Radiometers and Applications)
View Full-Text   |   Download PDF [3491 KB, uploaded 25 December 2015]   |  

Abstract

The Suomi NPP (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) performs the scheduled lunar roll maneuver on a monthly basis. The lunar calibration coefficients and lunar F-factor are calculated by taking the ratio of the lunar observed radiance to the simulated radiance from the Miller and Turner (MT) lunar model. The lunar F-factor is also validated against that derived from the VIIRS Solar Diffuser (SD). The MT model-based lunar F-factors in general agree with SD F-factors. The Lunar Band Ratio (LBR) is also derived from two channel lunar radiances and is implemented in the National Oceanic and Atmospheric Administration (NOAA) Integrated Calibration and Validation System (ICVS) to monitor the VIIRS long-term radiometric performance. The lunar radiances at pixels are summed for each of the VIIRS Reflective Solar Bands (RSBs) and normalized by the reference band M11 which has the most stable SD-based calibration coefficient. LBRs agree with the SD based F-factor ratios within one percent. Based on analysis with these two independent lunar calibration methods, SD-based and LBR-based calibrations show a lifetime consistency. Thus, it is recommended that LBR be used for both VIIRS radiometric calibration and lifetime stability monitoring. View Full-Text
Keywords: S-NPP; VIIRS; lunar calibration; lunar band ratio; calibration coefficients; F-factor; Solar Diffuser; Miller and Turner; radiometric stability S-NPP; VIIRS; lunar calibration; lunar band ratio; calibration coefficients; F-factor; Solar Diffuser; Miller and Turner; radiometric stability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Choi, T.; Shao, X.; Cao, C.; Weng, F. Radiometric Stability Monitoring of the Suomi NPP Visible Infrared Imaging Radiometer Suite (VIIRS) Reflective Solar Bands Using the Moon. Remote Sens. 2016, 8, 15.

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