Dandy Ahmad Yani, Mohammad Bisri, Lily Montarcih Limantara, Ery Suhartanto
The lack of hydrograph data presentation in the hydrology field has long become the drawback of the hydraulic structure planning. Such a conditional deficiency however has respectively place the Synthetic Unit Hydrograph model becomes as a very great utility. Ideally, every watershed has the certain specific unit hydrograph. This study intends to investigate the characteristic of observed hydrograph in all of the watersheds in the river region of Jeneberang, Sulawesi-Indonesia. However, the main aim of this study is to design the model of Synthetic Unit Hydrograph, one of them is the formula of flood peak discharge (Qp) that is as the function of watershed area (A), the length of main river (L), and the watershed shape factor. The watershed shape factor is defined as the ratio between watershed periphery (K) and area (A). The result shows that the watershed shape factor has linear relation with the parameters of Synthetic Unit Hydrograph. © IAEME Publication.
Doctoral Program on, Department of Water Resources, Faculty of Engineering, University of Brawijaya, Malang, Indonesia; Department of Water Resources, Faculty of Engineering, University of Brawijaya, Malang, Indonesia
