Catchment scale flood management using SCIMAP-Flood: Spatial targeting of flood hazard reduction measures in the East Rapti catchment, Nepal
Résumé
Practical approaches for managing flood hazards are moving from mitigation solely at the point of the impact, and towards an integrated catchment management approach which considers the source areas, flow pathways of flood waters and the impacted communities. However, there is uncertainty associated with providing catchment scale solutions which is primarily a function of spatial and temporal variability in patterns of rainfall, land cover, and hydrological connectivity across a catchment. These factors mean that flood waters are not produced in a homogenous way from one event to the next, resulting in a distribution of travel times to points of impact, such as towns and key infrastructure. There must also be careful consideration of the potential for a reduction in the flood hazard in one sub-catchment to increase the hazard elsewhere due to tributary timing and synchronisation.
Domaines
Sciences de l'Homme et Société
Origine : Fichiers produits par l'(les) auteur(s)