Analysis of river bed variation using SSARR and RMA-2 models
| Autor: | Ju Ha Hwang, Hyung San Kim, Seung Jin Maeng, Seung Wook Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Hydrology
lcsh:TD201-500 Lumped model 010504 meteorology & atmospheric sciences Flood myth Precipitation-discharge 0207 environmental engineering River bed variation Sediment 02 engineering and technology Sedimentation 01 natural sciences River bed Volumetric flow rate Numerical model lcsh:Water supply for domestic and industrial purposes Downstream (manufacturing) Flow velocity Environmental science Upstream (networking) 020701 environmental engineering SSARR 0105 earth and related environmental sciences |
| Zdroj: | Smart Water, Vol 5, Iss 1, Pp 1-14 (2020) |
| ISSN: | 2198-2619 |
| Popis: | Future changes in river bed were predicted under the assumption that flow velocity of past and changes in flow rate at upstream river due to construction of large-scale artificial structures downstream occur in the future. Therefore, the long-term runoff volume from the downstream part of Hosan Stream was estimated using the SSARR (Stream Synthesis and Reservoir Regulation Model). Changes in the river bed were simulated using RMA-2 and SED-2D, which are hydraulic models. As a result, it was found that the river bed variation is significantly affected by the inclusion of sediment in flood flow at upstream. A comprehensive evaluation of above results revealed that the river width has significantly affected flow rate, and the inclusion of sediment in flood flow from the upstream has a huge effect on changes in the riverbed. In this regard, there is a need to devise measures to mitigate future flood damage to artificial structures by reflecting sedimentation trends downstream before the construction of large-scale artificial structures at downstream of river. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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