Interannual and seasonal variations in ozone in different atmospheric layers over St. Petersburg based on observational data and numerical modeling |
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| Authors: | S P Smyshlyaev Ya A Virolainen M A Motsakov Yu M Timofeev A V Poberovskiy A V Polyakov |
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| Institution: | 1.Russian State Hydrometeorological University,St. Petersburg,Russia;2.St. Petersburg State University,St. Petersburg,Russia |
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| Abstract: | This paper analyzes atmospheric ozone variability at different altitudes over St. Petersburg for the period 2009–2014 on the basis of surface observations at the Peterhof station, satellite measurements with an SBUV instrument, and numerical simulations. Simulation data on temperature, wind velocity, humidity, and surface pressure are taken from the MERRA reanalysis database. Based on ozone measurements, numerical modeling, and reanalysis data, characteristics of ozone seasonal and interannual changes are identified; the role of photochemical and dynamic factors in ozone variations is estimated. |
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