Variability of atmospheric SO2 over Kazakhstan according to ground-based and satellite measurements
A.Kh. Akhmedjanov, N.D. Akhmetov, T.K. Kardanov
Joint-Stock Company “National Center of Space Research and Technology”, 15, Shevchenko St., Almaty, 050010, Kazakhstan
Keywords: концентрация, малые газы, диоксид серы, атмосфера, спутник, зондирование, concentration, greenhouse gases, sulfur dioxide, atmosphere, satellite, remote sensing
Abstract
A statistical analysis of the ground concentration of sulfur dioxide (SO2) was carried out based on the measuring network of observations data in the cities of Kazakhstan. The highest concentrations are observed in large industrial cities. In large cities, the range of changes in sulfur dioxide concentrations from 0.01 to 0.09 mg/m3. In Ust-Kamenogorsk the content of dioxide varies in the range from 0.058 to 0.259 mg/m3 with a downward trend. Sulfur dioxide content analysis in the atmospheric column over the territory of Kazakhstan using reanalysis system MERRA 2. The annual sulfur dioxide average content vary from one of 2.43 to 2.73 mg/m2, in 2010 this value reached to 3.16 mg/m2. There is a SO2 content decrease tendency in the atmospheric column in Kazakhstan. The total sulfur dioxide content in the atmospheric column decreased by 38% during the period from 1980 to 2018.
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