Efficiency of the geomorphologic instantaneous unit hydrograph method in flood hydrograph simulation

Khaleghi, Mohammad Reza; Gholami, Vahid; Ghodusi, Jamal; Hosseini, Hossein

doi:10.1016/j.catena.2011.04.005

Cited by 46 publications

(31 citation statements)

References 26 publications

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“…Komering river in upper has a catchment area 4260 km 2 , effective lenght 180 km. In this study the rainfall datas undertaken from three rainfall station Banding Agung, Muara Dua and Martapura, then peak discharge data undertaken from Perjaya headwork.…”

Section: Resultsmentioning

confidence: 99%

“…For varying duration, the lag time is adjusted as: tLR = tL + (T -TD)/4, where tLR is revised lag time (h) and T is actual TD. Snyder's method is applicable to fairly large catchments only, e.g., 100-500 km 2 …”

Section: Snyder's Modelmentioning

confidence: 99%

“…Therefore different methods have been developed. Dimensionless unit hydrograph developed by United States soil conservation service (SCS) provides a shape to the unit hydrograph and therefore leads to more reproducible results than the Snyder method [2]- [3].…”

Section: Introductionmentioning

confidence: 99%

“…Estimating the maximum flood discharge is necessary for predicting watershed hydrological behavior. Major problems concerning hydrological predictions include a lack or low accuracy of rain data, high cost, lack of information about catchments and the length of time required to obtain study results [2].…”

Section: Introductionmentioning

confidence: 99%

“…Cosmopolitan developments on the surface of the watershed will be included in the increase in peak discharge and runoff volume of the watershed [2]- [3]. Upper Komering basin is part of Musi River support operational at South Sumatera and it is located in equatorial region with the average annual rainfall is 2000 mm [5].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Determining Peak Discharge Factor Using Synthetic Unit Hydrograph Modelling (Case Study: Upper Komering South Sumatera, Indonesia)

Permatasari¹

2017

GEOMATE

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Synthetic unit hydrograph methods are popular and play an important role in many water resources design especially in the analysis of flood discharge of ungagged watersheds. These methods are simple, requiring only watershed characteristics such as area and river length and in some cases it may also include land use characteristics. Therefore, these methods serve as useful tools to simulate runoff from ungagged watersheds and watersheds undergoing land use change. To develop a synthetic unit hydrograph, several techniques are available. Several most popular unit hydrographs methods such as Nakayasu, Snyder-Alexeyev, SCS, and GAMA-1 are popular and commonly used in Indonesia for computing both peak discharge rate and the shape of flood hydrograph. This paper presents a simple approach for determining a consistent dimensionless unit hydrograph based on mass conservation principles.

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Section: Resultsmentioning

confidence: 99%

Section: Snyder's Modelmentioning

confidence: 99%