| Title |
The hydrologic flux of SS, TN and TP in Nakdong River Basin |
| Keywords |
Flow duration curves;Load duration curves;Nakdong river;Suspended solid;Total nitrogen;Total phosphorus;TMDL;유량 유황곡선;부하량 유황곡선;부유물질;총 질소;총 인;수질오염총량관리 |
| Abstract |
This study presents the export of constituent transport loads through a river system. The proposed constituent transport load estimating procedure can be operated with the on-going Korean TMDL monitoring system. This study firstly discusses the use of a hydrologic simulation model (TANK) to estimate stream-flow for the 40 sub-catchments. Model parameters are estimated from 8-days intervals flow data which has been monitored by NlER since 2004. Constituent transport loads are estimated with the 7-parameter log linear model whose parameters are estimated by the minimum variance unbiased estimator. Results from Nakdong river basin reveals that the proposed procedure provides satisfactory TN, TP and SS transport load estimates. As an application, a representative load duration curve is derived to represent the overall hydrologic flux of TN, TP and SS at Nakdong river basin. |