HydroBASINS lev08 watershed · #1080639660
Bassin du Niger
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions across 2 countries : Ansongo, Tillabéry
Sub-basin area
1 126,1km²
Upstream area
13 642,5km²
Discharge
13,32m³/s
Mean elev.
255m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #10806207201207 km²
- Bassin · #1080620580591 km²
2 dept-equivalent regions (GADM L2)
- 1120.8 km²99.9% of basin
- AnsongoGao · Mali1.2 km²0.1% of basin
2 intersecting protected areas
Kandadji
IUCN IVNature Reserve
208.35 km² overlap
Ansongo Giraffe Reserve
IUCN IVPartial Wildlife Reserve
1.35 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
44 distinct species · 72 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
29,2°C
Annual rain
264mm
Moisture idx (CMI)
-0,88
Runoff
14mm/an
PET
2 112mm
AET
219mm
Mean slope
0,5°
Water table
167cm
Forest
0%
Crops
27%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)