Comparison of Remote Spectrophotometric and Lidar Measurements of O3, NO2, and Temperature with Data of Satellite Measurements

O.E Bazhenov,A.V Nevzorov,S.I Dolgii,Yu.V Gridnev,V.D Burlakov,A.P Makeev,N.S Salnikova,M.V Grishaev

doi:10.1051/epjconf/201611924009

O.E Bazhenov, A.V Nevzorov + Show 6 more

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We consider the results of remote spectrophotometric and lidar measurements of the total ozone and nitrogen dioxide contents and temperature, obtained at the Siberian Lidar Station (SLS) of V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences (Tomsk: 56.5°N; 85.0°E) in comparison with the results of analogous satellite measurements.The ground-based measurements of the total ozone (TO) content are performed with the help of М-124 ozonometer; and the measurements of the nitrogen dioxide (NO 2 ) content are carried out with automatic spectrophotometer. The groundbased lidar measurements of temperature are conducted on the basis of SLS measurement complex. These measurements are compared with data of balloon-sonde and satellite measurements. The satellite measurements are performed by the TOMS and IASI instrumentation.

Highlights

total ozone (TO) measurements have been performed with the help of ozonometer М-124 since 1993
We present the relative differences between М-124 values and results of satellite measurements; the differences are smoothed using sliding average over 365 days
At the Aura Validation Data Center (AVDC) website, the Ozone Monitoring Instrument (OMI) data processed by the OMITOMS algorithm are abbreviated as OMTO, and data based on the OMI-Differential Optical Absorption Spectroscopy (DOAS) algorithm are abbreviated as OMDO

Summary

TO MEASUREMENTS

We used satellite measurements of TO, which are retrieved with the help of two algorithms: OMI-TOMS and OMI-DOAS [1]. The second algorithm uses the hyperspectral feature of Ozone Monitoring Instrument (OMI) It is based on the principle of Differential Optical Absorption Spectroscopy (DOAS). TOMS algorithm uses a cloud height climatology, derived with the help of infrared satellite data; while the DOAS algorithm uses cloud information derived from OMI measurements in the O2-O2 absorption band at wavelength of 470 nm. The relative discrepancy between ground-based and satellite data, retrieved with the help of OMIDOAS algorithm, and averaged over the year, has been 13 DU (3.5% of the annual average) in 2010 and 16 DU (4.7%) in 2011.

MEASUREMENTS OF NO2 CONTENT

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