Satellite / Explore
Explore
Any place on Earth, any two years since 2018. Find a place or move the map, pick the years and the season, and drag the line between them. Then measure how much of the view has changed.
How much has changed here
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- Show two years, then measure the view.
How it works. For each year the page lists every Sentinel-2 pass over the view in that season with under 15% cloud on the tile, checks the cloud over the view itself on the least cloudy few, and shows the clearest day that covers it. Measuring reads both days' bands over the view, leaves out cloud, shadow and anything that is water on both days, scales each picture to its own median (so a hazier or wetter year doesn't count), and counts the share whose five bands differ by about half or more from both the "before" day and a clear day a year earlier: the test the Places of change use. Changed pixels are drawn on the map in blue.
Copernicus Sentinel-2 L2A (European Union, ESA). Passes from Earth Search (2022 from the original archive); pictures from satellitedata.net. Outlines: Natural Earth. How the numbers are made.