Articles | Volume 9, issue 9
Atmos. Meas. Tech., 9, 4521–4531, 2016
https://doi.org/10.5194/amt-9-4521-2016

Special issue: Ten years of Ozone Monitoring Instrument (OMI) observations...

Atmos. Meas. Tech., 9, 4521–4531, 2016
https://doi.org/10.5194/amt-9-4521-2016

Research article 13 Sep 2016

Research article | 13 Sep 2016

Improvement of OMI ozone profile retrievals by simultaneously fitting polar mesospheric clouds

Juseon Bak et al.

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Cited articles

Bailey, S. M., Merkel, A. W., Thomas, G. E., and Carstens, J. N.: Observations of polar mesospheric clouds by the Student Nitric Oxide Explorer, J. Geophys. Res., 110, D13203, https://doi.org/10.1029/2004JD005422, 2005.
Bailey, S. M., Thomas, G. E., Rusch, D. W., Merkel, A. W., Jeppesen, C. D., Carstens, J. N., Randall, C. E., McClintock, W. E., and Russell III, J. M.: Phase functions of polar mesospheric cloud ice as observed by the CIPS instrument on the AIM satellite, J. Atmos. Sol.-Terr. Phy., 71, 373–380, https://doi.org/10.1016/j.jastp.2008.09.039, 2009.
Bak, J., Liu, X., Kim, J. H., Chance, K., and Haffner, D. P.: Validation of OMI total ozone retrievals from the SAO ozone profile algorithm and three operational algorithms with Brewer measurements, Atmos. Chem. Phys., 15, 667–683, https://doi.org/10.5194/acp-15-667-2015, 2015.
Baumgarten, G. and Thomas, G. E.: The importance of ice particle shape on UV measurements of polar mesospheric clouds: SBUV/2 observations, J. Atmos. Sol.-Terr. Phy., 68, 78–84, https://doi.org/10.1016/j.jastp.2005.08.007, 2006.
Bhartia, P. K. and Wellemeyer, C. G.: TOMS-V8 total ozone algorithm, in: OMI Algorithm Theoretical Basis Document, edited by: Bhartia, P. K., NASA Goddard Space Flight Center, Greenbelt, MD, 2002.
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Short summary
The main focus of this paper is improving an error of OMI nadir ozone profile retrievals due to the presence of polar mesospheric clouds (PMCs), consisting of small light-scattering particles at an altitude of 80–85 km. This error is shown to be systematic bias from ~ −2 at 2 hPa to ~ −20 % at 0.5 hPa and significantly correlated with brightness of PMCs. We reduce this interference of PMCs on ozone retrievals by including the PMC optical depth in the forward-model calculation and retrieval.