Beyond the Map: How Geospatial Data is Building Flood Resilience in Somalia

The Mandate for Data: Accurate, georeferenced data is the non-negotiable first step in all high-impact climate adaptation and infrastructure projects in fragile regions. In Somalia, where recurrent shocks like drought and flooding threaten millions of livelihoods , HESS translates raw data into durable engineering solutions that turn vulnerability into lasting resilience. Our scientific backbone ensures that every intervention is grounded in reliable information

1. Precision in the Field: Total Station & Drone Surveying

High-value projects, such as irrigation rehabilitation and flood risk reduction, demand precision data that goes far beyond basic GPS coordinates.

Canal Profile and Cross-Sectional Analysis: We perform detailed longitudinal and cross-sectional profiling of main and secondary canals to determine their hydraulic characteristics and identify structural defects.

Topographical and Geospatial Survey: HESS conducts comprehensive surveys using modern mapping technologies, including GPS and Total Station Surveying.

Drone (UAV) Photogrammetry: We employ Drone (UAV) Photogrammetry for rapid, comprehensive site assessments, especially for large areas like irrigation schemes.

Technical Work in the Field

2. Modeling the Future: Hydraulic Design and Analysis

Field data alone is not enough; it must be analyzed through specialized engineering software to predict performance and optimize design.

• Hydraulic Modeling: Our technical experts use Hydraulic Design Software (HEC-RAS or similar) for complex hydrological modeling and flood risk analysis.
• Design Computation: We conduct rigorous design computation for optimal flow velocity, discharge capacity, and gradient, ensuring canals and structures function efficiently.
• Structural Specifications: This analysis informs the structural specifications for critical canal structures, including head regulators, sluice gates, aqueducts, and culverts.

3. Final Deliverables: Data as the Blueprint for Action

The ultimate deliverable is a reliable blueprint that partners and government ministries can use for construction and decision-making.

Documentation: Final deliverables include a comprehensive Structural Inventory Report and a Canal Survey and Design Report with all hydraulic calculations.

Georeferenced Layouts: We provide accurate, georeferenced layout maps showing irrigation command areas, main, secondary, and tertiary canal networks.

GIS and CAD Outputs: Outputs include high-resolution GIS maps and shapefiles, along with engineering drawings in AutoCAD and PDF formats.