| Variable | Original Format | Original Resolution (lat x lon) |
Original Extension | Reference |
| STN-6 River Network | Grid | 6' x 6' | South America | Fekete et al, 2001 |
| STN-30 River Network | Grid | 30' x 30' | South America | Fekete et al, 2001 |
| GTOPO30 Elevation | Grid | 30'' x 30'' | South America | Bliss et al, 1996 |
| ETOPO5 Elevation | Grid | 5' x 5' | South America | NGDC, 1986 |
| Soil | Vector | - |
Brazil |
EMBRAPA-UNESCO, 1987 |
| Soil Water Holding Capacity | Grid | 60' x 60' | Global | Bouwman et al, 1983 |
| Land Cover | Grid | 30'' x 30'' | Global | Belward, 1996 |
| Landscan Total Population | Grid | 30'' x 30'' | South America | Dobson et al, 2000 |
| UNH Rural Population | Grid | 1.8'' x 1.8'' | South America | Vörösmarty et al, 2000 |
| UNH Total Population | Grid | 1.8'' x 1.8'' | South America | Vörösmarty et al, 2000 |
| UNH Urban Population | Grid | 1.8'' x 1.8'' | South America | Vörösmarty et al, 2000 |
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