Roi Et satellite images 2017–2025: how it changed
9 yearly Sentinel-2 images of Roi Et, from 13 Feb 2017 to 16 Feb 2025. Green cover in true colour moved from 15% to 10% (-5 percentage points) across a 8 × 8 km box.
Before and after
20172025Drag the divider or use the arrow keys.
Year by year
13 Feb 2017 · cloud 0% · green 15% 
10 Mar 2018 · cloud 0% · green 13% 
8 Feb 2019 · cloud 0% · green 12% 
15 Dec 2019 · cloud 0% · green 18% 
22 Feb 2021 · cloud 0% · green 14% 
7 Feb 2022 · cloud 0% · green 20% 
9 Mar 2023 · cloud 0% · green 11% 
27 Feb 2024 · cloud 0% · green 12% 16 Feb 2025 · cloud 0% · green 10%
Yearly facts
| Year | Acquired | Cloud cover | Green cover | Valid pixels |
|---|---|---|---|---|
| 2017 | 13 Feb 2017 | 0% | 15% | 100% |
| 2018 | 10 Mar 2018 | 0% | 13% | 100% |
| 2019 | 8 Feb 2019 | 0% | 12% | 100% |
| 2020 | 15 Dec 2019 | 0% | 18% | 100% |
| 2021 | 22 Feb 2021 | 0% | 14% | 100% |
| 2022 | 7 Feb 2022 | 0% | 20% | 100% |
| 2023 | 9 Mar 2023 | 0% | 11% | 100% |
| 2024 | 27 Feb 2024 | 0% | 12% | 100% |
| 2025 | 16 Feb 2025 | 0% | 10% | 100% |
Method and limits
- Sentinel-2 true colour at 10 m per pixel, so single houses are not visible.
- One clear dry-season acquisition per year; seasons and sun angle still differ slightly between years.
- Green cover is an RGB approximation of green-dominant pixels, not NDVI.
- Clouds, haze and shadows can remain in a scene even after selection.
Contains modified Copernicus Sentinel data, processed by MapScale.
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