Articles | Volume 11, issue 1
https://doi.org/10.5194/amt-11-265-2018
https://doi.org/10.5194/amt-11-265-2018
Research article
 | 
15 Jan 2018
Research article |  | 15 Jan 2018

In-flight calibration of SCIAMACHY's polarization sensitivity

Patricia Liebing, Matthijs Krijger, Ralph Snel, Klaus Bramstedt, Stefan Noël, Heinrich Bovensmann, and John P. Burrows

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Latest update: 24 Jun 2024
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Short summary
This article describes a method to determine the polarization sensitivity of SCIAMACHY, a spectrometer on Envisat, from in-orbit data. Polarization is a preference of a direction in which light oscillates, and many optical instruments suffer from a dependence of their measured signals on this. To measure and correct for this effect, a statistical analysis of in-flight data combined with a model of the atmosphere and the instrument was performed, showing that the instrument changed after launch.