All Stories

  1. Comparing Remote Sensing and Geostatistical Techniques in Filling Gaps in Rain Gauge Records and Generating Multi-Return Period Isohyetal Maps in Arid Regions—Case Study: Kingdom of Saudi Arabia

    Article • Water, March 2024, MDPI AG

    Ahmed Helmi

  2. Analysis of Water-Surface Oscillations Upstream of a Double-Right-Angled Bend with Incoming Supercritical Flow

    Article • Water, October 2023, MDPI AG

    Ahmed Helmi

  3. Evaluation of Geospatial Interpolation Techniques for Enhancing Spatiotemporal Rainfall Distribution and Filling Data Gaps in Asir Region, Saudi Arabia

    Article • Sustainability, September 2023, MDPI AG

    Ahmed Helmi

  4. Quantifying catchments sediment release in arid regions using GIS-based Universal soil loss equation (USLE)

    Article • Ain Shams Engineering Journal, August 2023, Elsevier

    Ahmed Helmi

  5. Evaluation of CMORPH, PERSIANN-CDR, CHIRPS V2.0, TMPA 3B42 V7, and GPM IMERG V6 Satellite Precipitation Datasets in Arabian Arid Regions

    Article • Water, December 2022, MDPI AG

    Ahmed Helmi

  6. Development of a New Multivariate Composite Drought Index for the Blue Nile River Basin

    Article • Water, March 2022, MDPI AG

    Ahmed Helmi

  7. Risk Assessment of Flash Floods in Eastern Egyptian Desert

    Article • January 2022, Springer Science + Business Media

    Ahmed Helmi

  8. Three-Dimensional Numerical Investigations of the Flow Pattern and Evolution of the Horseshoe Vortex at a Circular Pier during the Development of a Scour Hole

    Article • Applied Sciences, July 2021, MDPI AG

    Ahmed Helmi

  9. Flash Flood Risk Assessment in Egypt

    Article • January 2020, Springer Science + Business Media

    Ahmed Helmi

  10. Three-Dimensional Numerical Study of Stacked Drop Manholes

    Article • Journal of Irrigation and Drainage Engineering, September 2019, American Society of Civil Engineers (ASCE)

    Ahmed Helmi

  11. Assessment of CFD turbulence models for free surface flow simulation and 1-D modelling for water level calculations over a broad-crested weir floodway

    Article • Water SA, July 2019, Academy of Science of South Africa

    Ahmed Helmi

  12. Urbanization Growth Effect on Hydrological Parameters in Mega Cities

    Article • January 2019, Springer Science + Business Media

    Ahmed Helmi

  13. Hydraulic performance of sluice gate with unloaded upstream rotor

    Article • Water SA, November 2017, Academy of Science of South Africa

    Ahmed Helmi

  14. Experimental and numerical investigations of flow through free double baffled gates

    Article • Water SA, April 2011, Academy of Science of South Africa

    Ahmed Helmi