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Proceedings Paper

JPSS-2 VIIRS version 2 at-launch relative spectral response characterization
Author(s): Chris Moeller; Tom Schwarting; Joel McCorkel; David Moyer; Jeff McIntire
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Paper Abstract

The JPSS-2 VIIRS sensor has completed its pre-launch test program and is now awaiting launch in the 2022 timeframe. The VIIRS spectral characterization, in the form of band averaged and supporting detector level relative spectral response (RSR) for each VIIRS band, was completed in 2019 and is based upon independent SpMA dual monochromator (all bands) and GSFC GLAMR laser system (reflectance bands only) spectral measurements, including first time measurements of the VIIRS SWIR bands by a laser system. The measurements and subsequent analysis effort by subject matter experts of the VIIRS DAWG has led to the July 2019 VIIRS Version 2 RSR release, the official at-launch RSR characterization for the JPSS-2 VIIRS mission. Version 2 replaces and improves upon the August 2018 Version 1 release by incorporating the GLAMR measurements into the analysis to produce an updated “fused” RSR for reflective solar bands (M1- M10, I1-I3, DNBLGS, DNBMGS) and by applying a CO2 absorption correction to the SpMA measurements for thermal band M13. For all other bands (M11, M12, M14-M16, I4, I5), the Version 1 characterization, based entirely upon the SpMA measurements, is carried forward into the Version 2 release. An assessment on compliance with spectral performance metrics finds that VIIRS is compliant on nearly all metrics, with a few minor exceptions. The version 2 RSR release includes band average (over all detectors and subsamples) RSR plus supporting RSR for each detector and subsample, and is available under EAR99 restrictions to the science community at a restricted access NASA eRoom site.

Paper Details

Date Published: 9 September 2019
PDF: 15 pages
Proc. SPIE 11127, Earth Observing Systems XXIV, 111270D (9 September 2019); doi: 10.1117/12.2530022
Show Author Affiliations
Chris Moeller, Univ. of Wisconsin-Madison (United States)
Tom Schwarting, Science Systems and Applications, Inc. (United States)
Joel McCorkel, NASA Goddard Space Flight Ctr. (United States)
David Moyer, The Aerospace Corp. (United States)
Jeff McIntire, Science Systems and Applications, Inc. (United States)

Published in SPIE Proceedings Vol. 11127:
Earth Observing Systems XXIV
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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