Mitigation plan and water harvesting of flashflood in arid rural communities using modelling approach : A case study in Afouna village, Egypt

Omar M. Abdeldayem, Omar Eldaghar, Mohamed K. Mostafa, Mahmoud M. Habashy, Ahmed A. Hassan, Hossam Mahmoud, Karim M. Morsy, Ahmed Abdelrady*, Robert W. Peters

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)
25 Downloads (Pure)

Abstract

This paper aims to propose methods to mitigate the risks of flash flood events in arid rural communities with poor infrastructure. A flash flood management case study was conducted at Afouna Village in Egypt, which is characterized by an arid climate and faced a devasting flash flood in 2015. First, the flash flood was modelled and it was found that it corresponds to a 100 year return period flood that led to an almost 13 million m3 total runoff volume. A structural protection approach, using an artificial infiltration pond, was applied to mitigate the flooding risks through water harvesting and recharging the groundwater of the Moghra aquifer. In this study, a novel approach was proposed, which is substituting the low permeability silty sand (2.0 x 10-4 m/s) in the pond area with a high permeability one (9.6 x 10-3 m/s), which will enhance water harvesting and reduce direct evaporation. Modern techniques of hydrological modelling were utilized in order to achieve the optimal use, and harvesting, of flash flood water.

Original languageEnglish
Article number2565
Number of pages24
JournalWater (Switzerland)
Volume12
Issue number9
DOIs
Publication statusPublished - Sep 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Artificial infiltration pond
  • Flash flood
  • Flood risk management
  • Hydrological modelling
  • Water harvesting

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