Satellite-Detected Mudflow Extent in East Sao Vicente Municipality, Cabo Verde

East Sao Vicente Municipality, Cabo Verde, contains a geospatial dataset mapping flood impact from a mudflow event observed on 14 August 2025. The analysis covers approximately 35 km², identifying about 3 km² of affected land, 1,000 impacted buildings, and 15 km of affected roads. It was produced by the United Nations Satellite Centre (UNOSAT) using Pleiades very high-resolution satellite imagery.

Use Cases

• Assess building damage by analyzing the locations of the approximately 1,000 affected/potentially affected buildings within the 35 km² study area.
• Plan emergency response and infrastructure repair by mapping the approximately 15 km of affected roads relative to the mudflow extent.
• Validate flood impact models by comparing the satellite-detected mudflow extent covering about 3 km² with hydrological simulations.
• Conduct disaster risk analysis by correlating the identified mudflow extent with local topographic and land use data.

Strengths

• Provides quantitative impact estimates, including approximately 1,000 affected buildings and 15 km of affected roads.
• Derived from Pleiades very high-resolution satellite imagery, offering detailed spatial observation.
• Covers a clearly defined analysis area of approximately 35 km² within East Sao Vicente Municipality.

Limitations

• Data is a single snapshot from 14 August 2025, lacking temporal evolution of the mudflow event.
• Impact assessments (buildings, roads) are derived from satellite analysis and may require ground verification for accuracy.
• The dataset is specific to one municipality, limiting broader regional analysis without complementary data.

Provenance

Source

United Nations Satellite Centre (UNOSAT)

Collection Method

Analysis of Pleiades very high-resolution satellite imagery acquired on 14 August 2025.

Time Range

Observation date: 14 August 2025.

Freshness

Data reflects conditions as of 14 August 2025; metadata was last updated on 24 March 2026.

Geography

East Sao Vicente Municipality, Cabo Verde (analysis area approx. 35 km²).