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Proceedings Paper

Initial on-orbit radiometric calibration of the Suomi NPP VIIRS reflective solar bands
Author(s): Ning Lei; Zhipeng Wang; Jon Fulbright; Shihyan Lee; Jeff McIntire; Kwofu Chiang; Xiaoxiong Xiong
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Paper Abstract

The on-orbit radiometric response calibration of the VISible/Near InfraRed (VISNIR) and the Short-Wave InfraRed (SWIR) bands of the Visible/Infrared Imager/Radiometer Suite (VIIRS) aboard the Suomi National Polar-orbiting Partnership (NPP) satellite is carried out through a Solar Diffuser (SD). The transmittance of the SD screen and the SD’s Bidirectional Reflectance Distribution Function (BRDF) are measured before launch and tabulated, allowing the VIIRS sensor aperture spectral radiance to be accurately determined. The radiometric response of a detector is described by a quadratic polynomial of the detector’s digital number (dn). The coefficients were determined before launch. Once on orbit, the coefficients are assumed to change by a common factor: the F-factor. The radiance scattered from the SD allows the determination of the F-factor. In this Proceeding, we describe the methodology and the associated algorithms in the determination of the F-factors and discuss the results.

Paper Details

Date Published: 15 October 2012
PDF: 8 pages
Proc. SPIE 8510, Earth Observing Systems XVII, 851018 (15 October 2012); doi: 10.1117/12.930486
Show Author Affiliations
Ning Lei, Sigma Space Corp. (United States)
Zhipeng Wang, Sigma Space Corp. (United States)
Jon Fulbright, Sigma Space Corp. (United States)
Shihyan Lee, Sigma Space Corp. (United States)
Jeff McIntire, Sigma Space Corp. (United States)
Kwofu Chiang, Sigma Space Corp. (United States)
Xiaoxiong Xiong, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 8510:
Earth Observing Systems XVII
James J. Butler; Xiaoxiong Xiong; Xingfa Gu, Editor(s)

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