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2019 only
2025 only
both years
Water status
--
--% of the 2019-2025 average
Dry season (Jan-Apr) ----
Thresholds are illustrative, not official.
GREEN > 90%AMBER 70-90%RED < 70%
(ILLUSTRATIVE)
Dry-season water area (ha)
Bar colour = status (ILLUSTRATIVE thresholds)
Rainfall anomaly (%)
NDVI of surrounding land
Higher = greener vegetation around the water
How it works
Sentinel-2ESA satellite images, every 5 days
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MNDWIGreen vs short-wave infrared: water > 0
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Google Earth EngineCloud computing on years of imagery
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CHIRPSRainfall vs the 2001-2020 average
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StatusWater area vs its own average
Sustainable Development Goals
6
Clean Water & Sanitation
Tracks how much water our local lakes hold, year after year.
13
Climate Action
Links water changes to rainfall so communities can see climate effects locally.
2
Zero Hunger
Shows water and vegetation health that local farming depends on.
Honest limits
- One dry season (Jan-Apr) per year: one snapshot, not the whole year.
- Clouds can hide water. Cloud gaps are flagged, never filled in.
- Rainfall is one possible explanation, not proof.
- This is multi-year monitoring: not real-time and not a drought forecast.