Ogun River Survey Measuring Water Surface Elevation and Velocity via UAS

March and May 2025 survey of the Ogun River in Ogun State, Nigeria, conducted as part of the EU Horizon UAWOS project. The dataset measures water surface elevation, river depth, and surface velocity using specialized Unmanned Aircraft System payloads. Data is shared by author David Gustafsson in raw and processed point data formats.

Use Cases

• Modeling river hydraulics and flood risk based on water surface elevation and depth measurements.
• Calibrating satellite altimetry data using ground-truthed water surface elevation from radar altimetry.
• Analyzing river flow patterns based on surface velocity data collected by Doppler radar.
• Creating detailed river cross-sectional profiles based on bathymetry from water-penetrating radar.

Strengths

• Data collection uses multiple specialized UAS payloads for distinct hydrological measurements.
• Data is shared at two processing levels: raw sensor data and processed point data referenced to a river centerline.
• Dataset size is 7.2 GB, indicating a substantial volume of sensor readings.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Specialized software is required to process most raw data, which may limit accessibility.
• Row count is unknown, which may limit suitability assessment for specific modeling tasks.

Provenance

Source

EU Horizon UAWOS project.

Collection Method

Collected via Unmanned Aircraft System (UAS) hydrometry payloads including Geolux LX-80 Altimetry Radar, ZondAeroLF Water Penetrating Radar, and RSS 300 Doppler Radar.

Time Range

March and May 2025

Freshness

Last updated 2026-05-12 05:26:16

Geography

Ogun River, Ogun State, Nigeria