
Proceedings Paper
VIIRS solar diffuser bidirectional reflectance distribution function (BRDF) degradation factor operational trending and updateFormat | Member Price | Non-Member Price |
---|---|---|
$17.00 | $21.00 |
Paper Abstract
The Visible-Infrared Imaging Radiometer Suite (VIIRS) was launched onboard the Suomi National Polar-orbiting
Partnership (NPP) spacecraft on October 28, 2011. Among the bands on VIIRS are 14 reflective solar bands (RSBs).
The RSBs are calibrated using the sun as a source, after attenuation and reflection of sunlight from a Solar Diffuser (SD).
The reflectance of the SD is known to degrade over time, particularly at the blue end of the visible spectrum. VIIRS
incorporates a separate instrument, a Solar Diffuser Stability Monitor (SDSM), in order to measure and trend the SD
Bidirectional Reflectance Distribution Function BRDF changes over time. Inadequate knowledge of the SDSM screen
transmission as a function of solar geometry and SDSM detector dependent modulation effects require a unique
processing methodology to eliminate unphysical artifacts from the SD BRDF trending. The unique methodology is used
to generate periodic updates to operational Look-up Tables (LUTs) used by the Sensor Data Record (SDR) operational
code to maintain the calibration of the RSBs. This paper will discuss on-orbit SD BRDF behavior along with the
processing methodology used to generate RSB LUT updates incorporating the trended SD BRDF behavior.
Paper Details
Date Published: 15 October 2012
PDF: 8 pages
Proc. SPIE 8510, Earth Observing Systems XVII, 851016 (15 October 2012); doi: 10.1117/12.930164
Published in SPIE Proceedings Vol. 8510:
Earth Observing Systems XVII
James J. Butler; Xiaoxiong Xiong; Xingfa Gu, Editor(s)
PDF: 8 pages
Proc. SPIE 8510, Earth Observing Systems XVII, 851016 (15 October 2012); doi: 10.1117/12.930164
Show Author Affiliations
Published in SPIE Proceedings Vol. 8510:
Earth Observing Systems XVII
James J. Butler; Xiaoxiong Xiong; Xingfa Gu, Editor(s)
© SPIE. Terms of Use
