JalRekha · Lakes protect our cities. Let’s protect lakes.

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updated 10 Oct 2026

JalRekhaLake change from space

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JalRekha

Lakes protect our cities. Let’s protect lakes. Built for WeMakeDevs Environmental Hacks, Heat and Water track.

A satellite shows where a lake changed, not who changed it or whether it was allowed. Check on the ground and in official records.

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AboutHow it works How sure is it?How often we're right Where the data comes from

DataContains modified Copernicus Sentinel data (2019–2026), via the Registry of Open Data on AWS.Lake outlines: ATREE-CSEI (CC BY) and © OpenStreetMap contributors (ODbL).