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http://dx.doi.org/10.7848/ksgpc.2011.29.4.381

Estimation of Flows and Pollutant Loads from GIS Analysis using Cell-based Geospatial and Georgraphic Information Data  

Cho, Jae-Myoung (성균관대학교 건설환경시스템공학과)
Lee, Mi-Ran (성균관대학교 건설환경시스템공학과)
Yun, Hong-Sik (성균관대학교 사회환경시스템공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.29, no.4, 2011 , pp. 381-392 More about this Journal
Abstract
Pollutant loads calculated with unit factor method can not identity seasonal variations of pollutant inputs. Estimation of pollutant loads considering rainfall runoff can overcome these limits. SCS curve number method was applied to estimate runoff of each event of Koeup watershed of Koheung estuary lake. SCS curve numbers were calculated based upon land use, soil types of the catchment using GIS. Point and nonpoint source pollutant loads were summed up for total loads estimation. Those from nonpoint source were estimated by multiplying the calculated runoff and expected mean concentrations (EMC) presented by the Minister of Environment of Korea. DEM can present three dimensional views of a terrain, identity stream networks and flow accumulation. Furthermore, it can examine accumulated pollutant loads of specific point of a catchment. Therefore, cell based pollutant load estimation was attempted using DEM. ArcView was utilized to collect, store and manipulate spatial and attribute data of pollutant sources and features of the catchment. Cell-based DEM which was established by the GRID module of ARC/INFO was employed to estimate flows and pollutant loads.
Keywords
GIS; Hydraulic analysis; DEM; Cell-based geospatial data;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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