논문실적
| Estimation of Non-point-sources (NPS) Accumulation and Wash off Potential for Calibration of Urban Runoff Modelling |
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학술지명 Asia-Oceania Geosciences Society, AOGS
저자 하성룡,박인혁,박상영
발표일 2008-06-16
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The quantitive understanding of pollutant accumulation and washoff is a key task for a successful urban runoff modelling. This study investigated the pollutant build-up and washoff potential based on field experiment and GIS technique. The field experiment of non-point source (NPS) pollutant accumulation was conducted on the Yongam catchment, Cheongju city, Korea. NPS measure device (1m×1m rectangle) was installed at 2 locations of the each land use category. The average accumulation ratio of dust and dirt was analyzed for 3 days and 7 days. For the wash off potential of NPS, modified Universal soil loss equation (USEL) was employed with GIS. The risk map, which represents the high NPS wash off potential, was produced using GIS and the modified universal soil loss equation. Risk classes were classified based on the calculated product map value. The wash off parameter, RCOEF, in SWMM modelling was allocated based on the statistics of risk map value |
