Watch every reservoir, river, and coastline — without installing a single sensor.

The problem

You can't put a probe in every catchment, basin, and harbour. The places where contamination is most likely to start — runoff zones, agricultural drainage, algal bloom hotspots — are usually the places without instrumentation.

How WaterTwin solves it

• Sentinel-2 water-quality indices: chlorophyll, turbidity, clarity. 10–20 metre resolution. Five-day revisit. Pulled and processed every six hours.
• Sentinel-3 sea-surface temperature: daily SST coverage for coastal intakes, harbours, and large lakes.
• Automated thresholds: define what "concerning" looks like (e.g., chlorophyll > 30 mg/m³ over a defined polygon) and the platform raises an alarm with the same routing as any ground-sensor alert.
• True-colour imagery alongside the indices, so you can visually confirm before you act.
• Cross-validation with field sensors: when both agree, your confidence in the reading is higher than either alone.

How it works

1. The platform queries the Copernicus Data Space Ecosystem for the latest imagery covering your areas of interest.
2. A processing pipeline computes water-quality indices and pushes the results into the same telemetry stream as ground sensors.
3. Operators see satellite readings on the standard dashboards. The rules engine treats them as just another signal.

Where this changes the game

• Regulatory monitoring without the cost of full sensor coverage.
• Catchment-wide visibility for utilities responsible for source water quality.
• Early warning for algal blooms, agricultural runoff events, and storm impacts.