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http://dx.doi.org/10.17820/eri.2021.8.4.245

Applicability Test of STPS for HEC-RAS-based Turbidity Prediction Model in the Nagdonggang  

Lee, Namjoo (Dept. of Civil Eng., Kyungsung Univ.)
Choi, Seohye (R&D Division, Korea Institute of Hydrological Survey)
Kim, Chang-Sung (R&D Division, Korea Institute of Hydrological Survey)
Publication Information
Ecology and Resilient Infrastructure / v.8, no.4, 2021 , pp. 245-252 More about this Journal
Abstract
A turbidity current in a river and a lake occurs due to diverse nutrient loading including suspended sediment in sediment runoff, which affects water withdrawal and river environments. We developed one dimensional time-variant numerical model based on Python for the Nagdonggang mainstream. We examined the numerical stability and the applicability of the model by performing the simulation of quasi-steady flow in non-flooding for three cases, which are different according to the point and the amount of turbidity inflows in the Nagdonggang upstream and a tributary. The result was reasonable in the respect of the conservation of matter. The model will facilitate to simulate a large river if we can secure the data of turbidity variations in a target river reach or measured points in a field.
Keywords
Advection dispersion model; Nagdonggang; Python; Turbidity; Water quality;
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