Glossary · Technology
What is Sentinel-2?
Also called: Copernicus Sentinel-2, ESA optical satellite
Sentinel-2 is a European Space Agency (Copernicus) satellite mission providing free optical imagery of Earth at up to 10 m resolution, revisiting each location about every 5 days.
Sentinel-2 is part of the European Union’s Copernicus programme, operated with the European Space Agency. Its satellites photograph the Earth’s land surface in visible and infrared light, and the images are freely available.
At 10 m resolution, one pixel covers a 10 × 10 metre patch of ground — enough to see fields, cleared land, new roads and larger buildings, though not fine detail. Its infrared bands make measures like NDVI possible.
Because it revisits about every 5 days, there is a long, regular archive of images going back years, which is what makes a land history report possible.
Why it matters if you live abroad
Sentinel-2’s archive means we can show you how your land looked years ago — useful evidence of when a change really began.
Read the full guide
Your land’s 10-year diary
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