Validation of results of measurements of the NO2 contents in the troposphere and stratosphere with the TROPOMI satellite instrument on the basis of ground-based measurements at the Zvenigorod scientific station of A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences
V.S. Rakitin, A.N. Gruzdev, N.S. Kirillova, E.I. Fedorova, A.S. Elokhov, A.N. Safronov
Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow, Russia
Keywords: spectrometric measurements, validation
Abstract
Results of measurements of the NO2 contents in the vertical columns of the troposphere and stratosphere with the TROPOMI (Tropospheric Monitoring Instrument) aboard the Copernicus Sentinel-5P satellite in 2018-2020 are compared with the results of ground-based measurements at the Zvenigorod Scientific Station (ZSS) of the A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences. The comparison of the satellite data with the ZSS data is carried out for the two products of satellite measurements: the NO2 contents in the tropospheric and stratospheric columns. The correspondence between the results of satellite and ground-based measurements is characterized by the difference between them, linear correlation coefficients, and regression coefficients. The dependences of the comparison characteristics on the season, cloud conditions, and the height of the atmospheric boundary layer are revealed.
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