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http://dx.doi.org/10.5389/KSAE.2014.56.6.129

Streamflow Modeling in Data-scarce Estuary Reservoir Watershed Using HSPF  

Seong, Choung Hyun (Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.56, no.6, 2014 , pp. 129-137 More about this Journal
Abstract
This research presents an streamflow modeling approach in a data-scarce estuary reservoir watershed which has been suffered from high salinity irrigation water problem after completion of land reclamation project in South Korea. Since limited hydrology data was available on the Iwon estuary reservoir watershed, water balance relation of the reservoir was used to estimate runoff from upstream of the reservoir. Water balance components in the reservoir consists precipitation, inflow from upstream, discharge through sluice, and evaporation. Estimated daily inflow data, which is stream discharge from upstream, shows a good consistency with the observed water level data in the reservoir in terms of EI (0.93) and $R^2$ (0.94), and were used as observed flow data for the streamflow modeling. HSPF (Hydrological Simulation Program - Fortran) was used to simulate hydrologic response of upstream of the reservoir. The model was calibrated and validated for the periods of 2006 to 2007 and 2008 to 2009, respectively, showing that values of EI and $R^2$ were 0.89 and 0.91 for calibration period, 0.71 and 0.84 for validation period.
Keywords
Estuary reservoir; HSPF; surface water modeling; reservoir water balance;
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