Long-Term Simulation of Daily Streamflow Using Radar Rainfall and the SWAT Model: A Case Study of the Gamcheon Basin of the Nakdong River, Korea
| Autor: | Jongso Lee, Narae Kang, Soojun Kim, Dongryul Lee, Hung Soo Kim, Huiseong Noh |
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| Rok vydání: | 2016 |
| Předmět: |
Wet season
Hydrology Atmospheric Science Quantitative precipitation estimation Article Subject 0208 environmental biotechnology 02 engineering and technology lcsh:QC851-999 Pollution 020801 environmental engineering Runoff model Geophysics Geography Climatology Streamflow lcsh:Meteorology. Climatology Spatial variability Hydrometeorology SWAT model Surface runoff |
| Zdroj: | Advances in Meteorology, Vol 2016 (2016) |
| ISSN: | 1687-9317 1687-9309 |
| DOI: | 10.1155/2016/2485251 |
| Popis: | In recent years, with the increasing need for improving the accuracy of hydrometeorological data, interests in rain-radar are also increasing. Accordingly, with high spatiotemporal resolution of rain-radar rainfall data and increasing accumulated data, the application scope of rain-radar rainfall data into hydrological fields is expanding. To evaluate the hydrological applicability of rain-radar rainfall data depending on the characteristics of hydrological model, this study appliedRgaugeandRradarto a SWAT model in the Gamcheon stream basin of the Nakdong River and analyzed the effect of rainfall data on daily streamflow simulation. The daily rainfall data forRgauge,RZ, andRKDPwere utilized as input data for the SWAT model. As a result of the daily runoff simulation for analysis periods usingRZ(P)andRKDP(P), the simulation which utilizedRgaugereflected the rainfall-runoff characteristics better than the simulations which appliedRZ(P)orRKDP(P). However, in the rainy or wet season, the simulations which utilizedRZ(P)orRKDP(P)were similar to or better than the simulation that appliedRgauge. This study reveals that analysis results and degree of accuracy depend significantly on rainfall characteristics (rainy season and dry season) and QPE algorithms when conducting a runoff simulation with radar. |
| Databáze: | OpenAIRE |
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