Trabzon: land change, 2016–2025
Two Sentinel-2 satellite images of a 20 km square around Trabzon, from 2016-07-12 and 2025-07-17, were classified by a ResNet18 model trained on EuroSAT. Every 640 m cell is put in one of four land-cover groups, and the two dates are compared cell by cell.
- Before
- 2016-07-12
- After
- 2025-07-17
- Area analysed
- 394 km²
Change
+3.1 km²net change in built-up area
In cells the model is sure of on both dates (confidence ≥ 0.8): 3.7 km² became built-up, 4.9 km² changed in total.
This area lies in the Pontic Mountains mountain region. Bare rock and scree have no class of their own in EuroSAT and can show up as built-up or agriculture.
Land cover on both dates
| 2016 | 2025 | ± | |
|---|---|---|---|
| Agriculture decreased | 1.6% | 0.2% | -1.4 |
| Natural vegetation no notable change | 33.3% | 33.7% | +0.4 |
| Built-up no notable change | 11.3% | 12.1% | +0.8 |
| Water no notable change | 53.8% | 54% | +0.2 |
Largest transitions (confident cells)
- Natural vegetation → Built-up3.3 km²
- Built-up → Natural vegetation0.8 km²
- Built-up → Water0.4 km²
- Agriculture → Built-up0.4 km²
Limits
- Every value shown is a model estimate, not a measurement.
- Areas are not measurements but approximations counted from cells. The figures are always computed on 640 m cells; the scale only changes how the map is drawn.
- The model was trained on European images; results outside Europe are less reliable.
- Clouds, shadows and seasonal differences can show change that is not there.