Nong Khai satellite images 2017–2025: how it changed
9 yearly Sentinel-2 images of Nong Khai, from 7 Apr 2017 to 9 Feb 2025. Green cover in true colour moved from 39% to 25% (-14 percentage points) across a 8 × 8 km box.
Before and after
20172025Drag the divider or use the arrow keys.
Year by year
7 Apr 2017 · cloud 1% · green 39% 
23 Dec 2017 · cloud 0% · green 17% 
22 Apr 2019 · cloud 0% · green 30% 
11 Feb 2020 · cloud 0% · green 26% 
26 Jan 2021 · cloud 0% · green 26% 
2 Mar 2022 · cloud 0% · green 43% 
7 Mar 2023 · cloud 0% · green 28% 
5 Feb 2024 · cloud 0% · green 39% 9 Feb 2025 · cloud 0% · green 25%
Yearly facts
| Year | Acquired | Cloud cover | Green cover | Valid pixels |
|---|---|---|---|---|
| 2017 | 7 Apr 2017 | 1% | 39% | 100% |
| 2018 | 23 Dec 2017 | 0% | 17% | 100% |
| 2019 | 22 Apr 2019 | 0% | 30% | 100% |
| 2020 | 11 Feb 2020 | 0% | 26% | 100% |
| 2021 | 26 Jan 2021 | 0% | 26% | 100% |
| 2022 | 2 Mar 2022 | 0% | 43% | 100% |
| 2023 | 7 Mar 2023 | 0% | 28% | 100% |
| 2024 | 5 Feb 2024 | 0% | 39% | 100% |
| 2025 | 9 Feb 2025 | 0% | 25% | 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.
Look at any other area
The live map shows satellite history for any box you draw, not just the places listed here.
Open satellite history on the live map