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http://dx.doi.org/10.7780/kjrs.2021.37.6.2.7

A Study on the Characteristics of the Atmospheric Environment in Suwon Based on GIS Data and Measured Meteorological Data and Fine Particle Concentrations  

Wang, Jang-Woon (Division of Earth Environmental System Science, Pukyong National University)
Han, Sang-Cheol (Department of Earth and Environmental Sciences, Pukyong National University)
Mun, Da-Som (Division of Earth Environmental System Science, Pukyong National University)
Yang, Minjune (Department of Earth and Environmental Sciences, Pukyong National University)
Choi, Seok-Hwan (Department of Urban Space Research, Suwon Research Institute)
Kang, Eunha (Department of Urban Space Research, Suwon Research Institute)
Kim, Jae-Jin (Department of Environmental Atmospheric Sciences, Pukyong National University)
Publication Information
Korean Journal of Remote Sensing / v.37, no.6_2, 2021 , pp. 1849-1858 More about this Journal
Abstract
We analyzed the monthly and annual trends of the meteorological factors(wind speeds and directions and air temperatures) measured at an automated synoptic observation system (ASOS) and fine particle (PM10 and PM2.5) concentrations measured at the air quality monitoring systems(AQMSs) in Suwon. In addition, we investigated how the fine particle concentrations were related to the meteorological factors as well as urban morphological parameters (fractions of building volume and road area). We calculated the total volume of buildings and the total area of the roads in the area of 2 km × 2 km centered at each AQMS using the geographic information system and environmental geographic information system. The analysis of the meteorological factors showed that the dominant wind directions at the ASOS were westerly and northwesterly and that the average wind speed was strong in Spring. The measured fine particle concentrations were low in Summer and early Autumn (July to September) and high in Spring and Winter. In 2020, the annual mean fine particle concentration was lowest at most AQMSs. The fine particle concentrations were negatively and weakly correlated with the measured wind speeds and air temperatures (the correlation between PM2.5 concentrations and air temperatures was relatively strong). In Suwon city, at least for 6 AQMSs except for the RAQMS 131116 and AQMS 131118, the PM10 concentrations were affected mainly by the transport from outside rather than primary emission from mobile sources or wind speed decrease caused by buildings and, in the case of PM2.5, vise versa.
Keywords
Suwon city; Air quality monitoring system; Automated synoptic observation system; Fraction of building volume; Fraction of road area;
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