HydroBASINS lev08 watershed · #1081189480
Bassin de Ngounié
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 : Boumi-lowetsi, Dola, Louetsi-Wano, Ogoulou
Sub-basin area
1 215,8km²
Upstream area
8 418,7km²
Discharge
224,35m³/s
Mean elev.
411m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Louetsi2538 km²
- Bassin de Ngounié120 km²
4 dept-equivalent regions (GADM L2)
- 601.5 km²49.7% of basin
- 236.6 km²19.5% of basin
- 236.0 km²19.5% of basin
- 136.3 km²11.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
168 distinct species · 750 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°
24,6°C
Annual rain
1 929mm
Moisture idx (CMI)
0,09
Runoff
992mm/an
PET
1 759mm
AET
1 422mm
Mean slope
6,6°
Water table
240cm
Forest
91%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)