Articles | Volume 11, issue 8
https://doi.org/10.5194/amt-11-4707-2018
https://doi.org/10.5194/amt-11-4707-2018
Research article
 | 
13 Aug 2018
Research article |  | 13 Aug 2018

Differences in ozone retrieval in MIPAS channels A and AB: a spectroscopic issue

Norbert Glatthor, Thomas von Clarmann, Gabriele P. Stiller, Michael Kiefer, Alexandra Laeng, Bianca M. Dinelli, Gerald Wetzel, and Johannes Orphal

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AR by Norbert Glatthor on behalf of the Authors (13 Jul 2018)  Author's response   Manuscript 
ED: Publish as is (16 Jul 2018) by Andrew Sayer
AR by Norbert Glatthor on behalf of the Authors (26 Jul 2018)
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Short summary
We report differences in ozone retrievals in channels A and AB of the space-borne Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), which amount to up to 8 %. We provide strong evidence that the bias is caused by inconsistencies in different spectroscopic databases (MIPAS, HITRAN, GEISA). We show that a major part of the differences can be attributed to inconsistent air-broadening coefficients of the ozone lines contained in the databases.