Hydrograph Study of Palu River Watershed

Hydrograph is a way of predicting the amount of flood discharge plans in a watershed. Each watershed has different drainage characteristics due to the topographic shape of the watershed, land use, river typology (length, number, and slope), height and duration of rainfall. This research was conducte...

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Veröffentlicht in:MATEC web of conferences 2020, Vol.331, p.4001
Hauptverfasser: Arafat, Yassir, Tunas, IG, Amaliah, Tuty, Amiruddin, Aswar
Format: Artikel
Sprache:eng
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Zusammenfassung:Hydrograph is a way of predicting the amount of flood discharge plans in a watershed. Each watershed has different drainage characteristics due to the topographic shape of the watershed, land use, river typology (length, number, and slope), height and duration of rainfall. This research was conducted in Palu River Basin, with a basin area of 3. 060,388 km2, mismatch analysis of watershed and synthetic unit hydrograph, rain and discharge analysis, hydrograph discharge design analysis using optimal synthetic unit hydrograph parameter model. From the results of research calculation of Synthetic Unit Hydrograph Nakayasu Method has big enough key compared with another method. By using hydrograph model of flood plan for Palu River Watershed with the approach of Synthetic Unit Hydrograph Nakayasu, hydrograph calculation of flood in Palu river watershed, obtained alpha coefficient equal to 0,651 and Tr coefficient 0,3 with cash value model 71,491%. with cash value model 71,491%.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/202033104001