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Evaluation of FTIR Measurements and EMAC Simulations for Trace Gas Columns Near St. Petersburg

This study compares ground-based FTIR measurements with EMAC model simulations of trace gas columns near St. Petersburg, Russia, from 2009 to 2012. The EMAC model, a comprehensive numerical chemistry and climate simulation system, incorporates sub-models that analyze tropospheric and middle-atmospheric processes alongside interactions with land and oceans. Using high-resolution simulations, this research assesses the seasonal cycles and distribution of trace gases, providing insights into atmospheric chemistry and environmental influences in the region.

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Evaluation of FTIR Measurements and EMAC Simulations for Trace Gas Columns Near St. Petersburg

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  1. Comparison of ground-based FTIR measurements and EMAC model simulations of trace-gases columns near St. Petersburg (Russia) in 2009-2012 The EMAC model is a numerical chemistry and climate simulation system that includes sub-models describing troposphere and middle atmosphere processes and their interaction with oceans, land and human influences. The simulation includes a comprehensive atmospheric chemistry setup for the troposphere, the stratosphere and the lower mesosphere. We applied the EMAC (ECHAM5 version 5.3.01, MESSy version 1.10) in the T42L39MAresolution, i.e. with a spherical truncation of T42 (corresponding to a quadratic Gaussian grid of approximately 2.8 by 2.8 degrees in latitude and longitude) with 39 vertical hybrid pressure levels up to 0.01 hPa. Yana Virolainen(1), Maria Makarova (1), Dmitry Ionov (1), Alexander Polyakov (1), Oliver Kirner (2), YuryTimofeyev(1), Anatoly Poberovsky (1), and HamudImhasin (1) St.PetersburgState University, St. Petersburg, Russian Federation, (2) Steinbuch Centre for Computing, Karlsruhe Institute of Technology, Karlsruhe, Germany

  2. Comparison of ground-based FTIR measurements and EMAC model simulations of trace-gases columns near St. Petersburg (Russia) in 2009-2012 Seasonal cycle

  3. Comparison of ground-based FTIR measurements and EMAC model simulations of trace-gases columns near St. Petersburg (Russia) in 2009-2012 Distribution of gases total columns

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