نتایج جستجو برای: regional flood frequency analysis

تعداد نتایج: 3356496  

2008
A. W. Jayawardena

Climatic variability, unplanned land use pattern and encroachment into the flood plain are affecting the hydrology of Bagmati river basin of Nepal. In this study, methodology to improve present flood management system with non-structural countermeasures has been elaborated. Study of hydrological condition, basin scale rainfall runoff modeling and inundation analysis is helpful to prepare commun...

Journal: :The Science of the total environment 2015
Nerantzis Kazakis Ioannis Kougias Thomas Patsialis

The present study introduces a multi-criteria index to assess flood hazard areas in a regional scale. Accordingly, a Flood Hazard Index (FHI) has been defined and a spatial analysis in a GIS environment has been applied for the estimation of its value. The developed methodology processes information of seven parameters namely flow accumulation, distance from the drainage network, elevation, lan...

Journal: :Geomorphology 2022

River floods frequently occur when tropical cyclones hit land. Nonetheless, systematic, long-term discharge data remain rather scarce in many countries, which prevent proper analysis of peak discharges occurring during floods. The Térraba catchment is the biggest and most dynamic Costa Rica. In this study, we developed regional flood-frequency analyses combining tree-ring based estimation measu...

2008
J. Ernst B. J. Dewals

Within the global framework of the climate change, according to most Regional Climate Models the maximum peak discharges in river will increase in importance and frequency. Therefore the people will have to face worst inundation conditions. In order to protect themselves from the increasing flood risk, the communities have to draw up suitable flood protection measures. The selection and the eva...

2013
S. A. Archfield

In the United States, estimation of flood frequency quantiles at ungauged locations has been largely based on regional regression techniques that relate measurable catchment descriptors to flood quantiles. More recently, spatial interpolation techniques of point data have been shown to be effective for predicting streamflow statistics (i.e., flood flows and low-flow indices) in ungauged catchme...

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