HydroBASINS lev08 watershed · #1080961990
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 4 administrative regions : Anambra West, Esan South-East, Ibaji, Oshimili North
Sub-basin area
230,7km²
Upstream area
2 079 209,9km²
Discharge
5 976,13m³/s
Mean elev.
43m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Niger515 km²
- Bassin de River Aika169 km²
4 dept-equivalent regions (GADM L2)
- 119.4 km²52.0% of basin
- 92.9 km²40.4% of basin
- 12.3 km²5.4% of basin
- 5.1 km²2.2% of basin
1 intersecting protected areas
Ologholo-Emu-Urho
IUCN Not ReportedForest Reserve
21.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 1 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°
27,2°C
Annual rain
1 586mm
Moisture idx (CMI)
-0,05
Runoff
1 079mm/an
PET
1 664mm
AET
1 113mm
Mean slope
0,8°
Water table
50cm
Forest
52%
Crops
80%
Urban
29%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)