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Development of a Stream Water Quality Model (QUAL-NIER) for the Management of Total Maximum Daily Loads  

Park, Jun Dae (Environmental Cap System Research Department, National Institute of Environmental Research)
Shin, Dong Seok (Geum River Environment Research Center, National Institute of Environmental Research)
Kim, Moon Sook (Environmental Cap System Research Department, National Institute of Environmental Research)
Kong, Dong Soo (Han River Environment Research Center, National Institute of Environmental Research)
Rhew, Doug Hee (Environmental Cap System Research Department, National Institute of Environmental Research)
Jung, Dong-Il (Environmental Cap System Research Department, National Institute of Environmental Research)
Na, Eun Hye (Environmental Cap System Research Department, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.24, no.6, 2008 , pp. 784-792 More about this Journal
Abstract
Greater focus must be placed on ensuring that the water quality model (WQM) reflects the objective of its application and the characteristics of the water environment properly before it is selected. In the development or application of WQM, various factors influencing the model predictions should be reviewed so that it can perform more properly and reasonably based on scientific theory. This study reviewed the characteristic of existing WQM and the domestic river environment to find the requirements of the model application for TMDLs management in Korea. In this study, a water quality model, QUAL-NIER, was developed based on the USEPA's QUAL2E. The core structure and reaction scheme of the model was established followed by the formulation of equations according to the scheme with some supplements on the reaction mechanisms which are necessary for domestic rivers. Algorithms on the equations were set up and programmed to form a computer-based model. The developed model, QUAL-NIER was applied to the main stem of the Nakdong river. The model was calibrated and verified to data measured in 2004. The model results displayed good agrement with the field measurements for both calibration and verification. From this study, it was concluded that the developed QUAL-NIER model was very powerful with regard to the water quality simulation in domestic rivers.
Keywords
Nakdong river; QUAL-NIER; TMDLs; Water quality model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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