Hydrological Assessments
Understanding site hydrology is critical for assessing flood risk, protecting assets, and designing climate-resilient infrastructure. We deliver hydrological assessments that evaluate rainfall characteristics, catchment dynamics, surface water flows, and drainage pathways to inform engineering design, environmental assessment, and long-term risk management.
Hydrological Assessments
Five Elements undertakes comprehensive Flood Risk Assessments (FRA) to support both engineering design and the ESIA process. The assessment begins with a detailed evaluation of project catchments and sub-catchments, followed by analysis of topography, soil infiltration capacity, land cover characteristics, and historical rainfall data to inform rainfall–runoff modelling.
We develop scenario-based simulations, including baseline (no-project) conditions, with-project conditions, and multiple design storm return periods, to generate a robust flood risk profile. These outputs underpin evidence-based engineering recommendations aimed at minimising flood risk and enhancing infrastructure resilience under future climate change projections.
Related Services:
- Well-field Assessment
- Light Non-Aqueous Phase Liquid (LNAPL) Management
Did You Know?
Cyclones have impacted Oman, highlighting the importance of climate-resilient flood risk design.
A climate change uplift factor of approximately 15% is being proposed for Rainfall Intensity–Duration–Frequency (IDF) curves to account for increasingly intense rainfall events associated with future climate change.
The Civil Aviation Authority operates 32 meteorological stations across Oman, providing critical rainfall and climate data for hydrological modelling.
Oman has constructed approximately 200 dams for flood protection, groundwater recharge, and surface water storage.
