Table 4 Distribution of validation polygons.
From: Global mining footprint mapped from high-resolution satellite imagery
|  | 200 validation polygons | 348.2 km2 |
|  | The present study | 322.2 km2 |
Countries | Ukraine (51), Democratic Republic of Congo (43), Suriname (23), China (12), Zambia (12), Finland (10), Sweden (7), Germany (6), French Guiana (6), Brazil (5), Estonia (5), Mozambique (5), Czech (3), Guinea (3), Poland (3), The former Yugoslav Republic of Macedonia (2), Russia (2), France (1) and Mauritania (1). | Â |
Climate | Tropical (39), Dry (4), Temperate (70), Cold (87) and Polar (0). | Climate classification based on59 |
Topography | Mountains (41) and Plains (159). | Terrain classification based on60 |
