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The 30 day mean AOD for (a) pre-SD and (c) SD, and (e) relative change in the 30 day mean AOD from pre-SD to SD. The 30 day mean geopotential height and wind vector at the 900 hPa level for (b) pre-SD and (d) SD, and (f) differences in the 30 day mean geopotential height and wind vector at the 900 hPa level from pre-SD to SD. The cross symbol indicates the location of Seoul.
