| Station: | Douna | Continent: | Africa | ||
| River: | Bani | Major Basin : | Niger | ||
| Country: | Mali | Discharge into : | Atlantic Ocean | ||
| Observation Period: | 1922 - 1988 | Total Months: | 589 | ||
| Latitude (dec deg): | 13.18 N | Area (km2): | 101600 | ||
| Longitude (dec deg): | 5.95 W | Elevation (m): | 271 | ||
| Annual Discharge: (m3/s): | 505.4 | (km3/yr): | 15.8 | ||
| Annual Runoff: (l/s/km2): | 4.9 | (mm/yr): | 155.7 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 122.4 | 70.6 | 42.3 | 25.4 | 20.4 | 35.7 | 136.8 | 860.4 | 1813.8 | 1766.9 | 818.9 | 286.6 |
| km3/mo | 0.3 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.4 | 2.3 | 4.7 | 4.7 | 2.1 | 0.8 |
| mm/mo | 3.2 | 1.7 | 1.1 | 0.6 | 0.5 | 0.9 | 3.6 | 22.7 | 46.3 | 46.6 | 20.9 | 7.6 |
| l/s/km2 | 1.2 | 0.7 | 0.4 | 0.2 | 0.2 | 0.4 | 1.3 | 8.5 | 17.9 | 17.4 | 8.1 | 2.8 |
