Population growth rate: 2%

Flood recurrence interval: 20 yrs

Land-use policy:
Strict Moderate

Include slopes

Projected Urban Area: 245.3 km² | Flood Risk Exposure: 18.7 %

Sentinel2 (2017): Baseline urban cover
Sentinel2 (2025): Current urban extent
Sentinel2, WWF Hydrosheds, NASA SRTM: Flood-prone Areas and water detection
Indices Used: NDVI (vegetation), NDBI (built-up), NDWI (water), NDMI (moisture)
Processing Tools: Google Earth Engine, Python (geopandas, scikit-learn), ArcGIS and QGIS

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Urban Growth & Flood Risk Dashboard – Mwanza & Tanga (2017–2025)

Data-driven insights for resilient urban planning