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# Ozone columns obtained by ground-based remote sensing in Kiev for Aura Ozone Measuring Instrument validation

AV Shavrina, YV Pavlenko, A Veles, I Syniavskyi, M Kroon

\begin{abstract}
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Ground-based observations with a Fourier transform spectrometer in the infrared region (FTIR) were performed in Kiev (Ukraine) during the time frames August-October $2005$ and June-October $2006$ within Ozone Measuring Instrument(OMI) validation project no.$2907$ entitled OMI validation by ground based remote sensing: ozone columns and profiles'' in the frame of the international ESA-NIVR-KNMI OMI AO effort. Ozone column data for $2005$ were obtained by Modeling the ozone spectral band at $9.6$ micron with the radiative transfer code MODTRAN$3.5$. Our total ozone column values were found to be lower than OMI-DOAS total ozone column data by 8-10 DU on average, while our observations have a relatively small standard error of about $2$ DU. Improved modeling of the ozone spectral band, now based on HITRAN-$2004$ spectral data as calculated by us moves our results towards better agreement with the OMI-DOAS total ozone column data. The observations made during $2006$ with a modernized FTIR spectrometer and higher signal-to-noise ratio were simulated by the MODTRAN$4$ model computations. For ozone column estimates the AIRS satellite water vapor and temperature profiles were combined with the Aura-MLS stratospheric ozone profiles and TEMIS-KNMI climatological profiles to create \textit{a priori} input files for spectral modeling. The MODTRAN$4$ estimates of ozone columns from the $2006$ observations compare rather well with the OMI total ozone column data: standard errors are of $1.11$ DU and $0.68$ DU, standard deviation are of $8.77$ DU and $5.37$ DU for OMI-DOAS and OMI-TOMS, respectively.
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\end{abstract}

## Bibliografische gegevens

AV Shavrina, YV Pavlenko, A Veles, I Syniavskyi, M Kroon. Ozone columns obtained by ground-based remote sensing in Kiev for Aura Ozone Measuring Instrument validation
Status: published, Journal: J. Geophys. Res., Year: 2007, doi: 10.1029/2007JD008787

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