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Remote Sens. 2016, 8(3), 194; doi:10.3390/rs8030194

VIIRS Reflective Solar Bands Calibration Progress and Its Impact on Ocean Color Products

1
NOAA National Environmental Satellite, Data, and Information Service, Center for Satellite Applications and Research, E/RA3, 5830 University Research Ct., College Park, MD 20740, USA
2
Global Science and Technology, 7855 Walker Drive, Suite 200, Greenbelt, MD 20770, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Changyong Cao, Xiaofeng Li and Prasad S. Thenkabail
Received: 28 November 2015 / Revised: 28 January 2016 / Accepted: 23 February 2016 / Published: 27 February 2016
(This article belongs to the Collection Visible Infrared Imaging Radiometers and Applications)
View Full-Text   |   Download PDF [3821 KB, uploaded 27 February 2016]   |  

Abstract

The radiometric calibration for the reflective solar bands (RSB) of the Visible Infrared Imaging Radiometer Suite (VIIRS) on board the Suomi National Polar-orbiting Partnership (SNPP) platform has reached a mature stage after four years since its launch. The characterization of the vignetting effect of the attenuation screens, the bidirectional reflectance factor of the solar diffuser, the degradation performance of the solar diffuser, and the calibration coefficient of the RSB have all been made robust. Additional investigations into the time-dependent out-of-band relative spectral response and the solar diffuser degradation non-uniformity effect have led to newer insights. In particular, it has been demonstrated that the solar diffuser (SD) degradation non-uniformity effect induces long-term bias in the SD-calibration result. A mitigation approach, the so-called Hybrid Method, incorporating lunar-based calibration results, successfully restores the calibration to achieve ~0.2% level accuracy. The successfully calibrated RSB data record significantly impacts the ocean color products, whose stringent requirements are especially sensitive to calibration accuracy, and helps the ocean color products to reach maturity. View Full-Text
Keywords: VIIRS; reflective solar bands; radiance; solar diffuser; moon; calibration; ocean color remote sensing VIIRS; reflective solar bands; radiance; solar diffuser; moon; calibration; ocean color remote sensing
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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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Sun, J.; Wang, M. VIIRS Reflective Solar Bands Calibration Progress and Its Impact on Ocean Color Products. Remote Sens. 2016, 8, 194.

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