نتایج جستجو برای: flood hydrograph

تعداد نتایج: 23906  

Journal: :Natural Hazards 2022

Abstract In this paper, we aim to define a procedure of flood hazard assessment applicable large river basins in which events can be induced/sustained by the full basin area or fractions total as functions extent triggering precipitation event. The proposed is based on combined approach accounting for (1) reconstruction intensity–duration–frequency curves expressing magnitude terms intensity mu...

Journal: :J. Geographic Information System 2011
Gomaa M. Dawod Nabeel A. Koshak

Unit hydrographs (UH) are either determined from gauged data or derived using empirically-based synthetic unit hydrograph procedures. In Saudi Arabia, the discharge records may not be available either for several locations or for long time scales, and therefore synthetic unit hydrographs are crucial in flood and water resources management. Available metrological, geological, and land use datase...

2001
Pauline Kneale

There is diversity in the use of global goodness-of-fit statistics to determine how well models forecast flood hydrographs. This paper compares the results from nine evaluation measures and two forecasting models. The evaluation measures comprise global goodness-of-fit measures as recommended by Legates and McCabe (1999) and Smith (2000) and more flood specific measures which gauge the ability ...

Journal: :Remote Sensing 2010
Carmelo Conesa-Garcia Vicente Caselles-Miralles Juan M. Sanchez Tomas Rafael Garcia-Lorenzo

This paper shows the combined use of remotely sensed data and hydraulic geometry methods as an alternative to rainfall-runoff models. Hydraulic geometric data and boolean images of water sheets obtained from satellite images after storm events were integrated in a Geographical Information System. Channel cross-sections were extracted from a high resolution Digital Terrain Model (DTM) and superi...

Journal: :Nucleation and Atmospheric Aerosols 2022

On January 2019, the biggest flood in last decade struck Gowa and Makassar. The claimed enormous number of victims caused severe damage to many buildings; this can be anticipated by Flood Routing. This study aims analyze hydrograph, propagation time, determine inundation model during downstream Bili-Bili reservoir. research was conducted through three phases: delineation watershed using ArcGis ...

Journal: :Water Resources Management 2022

Abstract The paper considers the problem of inverse flood routing in reservoir operation strategy. aim work is to investigate possibility determining hydrograph at upstream end based on required downstream using simplified open channel flow models. To accomplish this, linear kinematic wave equation, diffusive equation and Muskingum are considered. achieve end, an solution afore mentioned equati...

Journal: :Bentang 2022

The application of the polder system for flood control in DKI Jakarta has become a must coastal areas, especially with construction sea dikes along coast as solution to anticipate tidal flooding. One thing consider when using is how much pump capacity and reservoir are needed. To answer this quetions, hydrological analysis been carried out several method approaches, starting from determining ra...

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