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KMID : 1024520020110070697
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Journal of the Environmental Sciences
2002 Volume.11 No. 7 p.697 ~ p.703
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Considerations in Space Allocation Methods of Emission from Area and Mobile Sources
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Kim Hyun-Goo
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Abstract
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In the present study, space allocation methods of pollutant emission from area and mobile sources are assessed by the actual application to air quality modeling of Pohang area. It is found that the TM-based modeling which allocates emission onto the 1km x 1km sized TM-grid system predicts almost the same mean ground-level concentration as that by the GIS-based modeling which uses geographical information of area and mobile sources directly, while maximum ground-level concentration by the TM-based modeling is predicted considerably lower than that by the GIS-based modeling. Moreover, the problem is found that the TM-based modeling causes deviation of mobile roads. In conclusion, it is anticipated to applying GIS-based modeling for a more accurate assessment of air quality in local scale.
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KEYWORD
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area source, mobile source, space allocation of emission, geographical information system(GIS)
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