Hydraulic and Hydrologic Modeling of Steep Channel of Putih River, Magelang District, Central Java Province, Indonesia
| Main Author: | Widowati, Adi Putri Anisa |
|---|---|
| Format: | Article info application/pdf Journal |
| Bahasa: | eng |
| Terbitan: |
Department of Civil and Environmental Engineering, Faculty of Engineering, UGM
, 2017
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| Subjects: | |
| Online Access: |
https://jurnal.ugm.ac.id/jcef/article/view/26507 https://jurnal.ugm.ac.id/jcef/article/view/26507/17260 https://jurnal.ugm.ac.id/jcef/article/downloadSuppFile/26507/2340 https://jurnal.ugm.ac.id/jcef/article/downloadSuppFile/26507/2341 https://jurnal.ugm.ac.id/jcef/article/downloadSuppFile/26507/2342 https://jurnal.ugm.ac.id/jcef/article/downloadSuppFile/26507/2343 |
Daftar Isi:
- Hydrologic and hydraulic modeling are important to be conducted to examine the watershed response based on a rainfall input, especially over disaster-prone watershed such as Putih River watershed in Magelang, Central Java Province. A GIS-based grid-based distributed rainfall-runoff model was used to simulate the rainfall-runoff transformation. A two-dimensional hydrodynamic flow modeling was then carried out to simulate the flood processes on the stream and floodplain area. A sensitivity analysis was conducted on infiltration rate, Manning’s n value, and rainfall intensity. Infiltration rate, Manning’s n value, and rainfall intensity give considerable effects to the resulted flow hydrographs. The modeling results show that the results of hydrologic-hydraulic modeling is in good agreement with the observed results.