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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

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doi:10.5194/amt-2016-420
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
11 Jan 2017
Review status
A revision of this discussion paper is under review for the journal Atmospheric Measurement Techniques (AMT).
In-flight performance of the Ozone Monitoring Instrument
V. M. Erik Schenkeveld1, Glen Jaross2, Sergey Marchenko3, David Haffner3, Quintus L. Kleipool1, Nico C. Rozemeijer4, J. Pepijn Veefkind1,5, and Pieternel F. Levelt1,5 1Royal Netherlands Meteorological Institute KNMI, De Bilt, The Netherlands
2NASA Goddard Space Flight Center, Greenbelt, Maryland
3Science Systems and Applications Inc., Lanham, Maryland
4TriOpSys BV, Utrecht, The Netherlands
5Delft University of Technology, Delft, The Netherlands
Abstract. The Dutch-Finnish Ozone Monitoring Instrument (OMI) is an imaging spectrograph flying on NASA's EOS Aura satellite since July 15, 2004. OMI is primarily used to map trace gas concentrations in the Earth’s atmosphere, obtaining mid-resolution (0.4–0.6 nm) UV-VIS (264–504 nm) spectra at multiple (30–60) simultaneous fields of view. Assessed via various approaches that include monitoring of radiances from selected ocean, land, ice and cloud areas, as well as measurements of line profiles in the Solar spectra, the instrument shows low optical degradation and high wavelength stability over the mission lifetime. In the regions relatively free from the slowly unraveling ‘row anomaly’ the OMI irradiances have degraded by 3–8 %, while radiances have changed by 1–2 %. The long-term wavelength calibration of the instrument remains stable to 0.005–0.020 nm.

Citation: Schenkeveld, V. M. E., Jaross, G., Marchenko, S., Haffner, D., Kleipool, Q. L., Rozemeijer, N. C., Veefkind, J. P., and Levelt, P. F.: In-flight performance of the Ozone Monitoring Instrument, Atmos. Meas. Tech. Discuss., doi:10.5194/amt-2016-420, in review, 2017.
V. M. Erik Schenkeveld et al.
V. M. Erik Schenkeveld et al.
V. M. Erik Schenkeveld et al.

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Short summary
The Ozone Monitoring Instrument (OMI) is flying on NASA's EOS Aura satellite since July 15, 2004. It measures the concentration of trace gasses in the atmosphere, like ozone, NO2, SO2 etcetera. This article describes the trend in performance and calibration parameters of OMI during 12 years of flight. The degradation of the CCD detectors, solar diffusers, spectral calibration and row anomaly are shown. The instrument shows overall degradation that is better than expected.
The Ozone Monitoring Instrument (OMI) is flying on NASA's EOS Aura satellite since July 15,...
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