HydroBASINS lev08 watershed · #1081184610
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 2 administrative regions : Dola, Douya Onoye
Sub-basin area
1 373,8km²
Upstream area
15 600,9km²
Discharge
477,67m³/s
Mean elev.
174m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Dola2080 km²
- Bassin de Ngounié153 km²
2 dept-equivalent regions (GADM L2)
- 1003.6 km²73.4% of basin
- 364.1 km²26.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
535 distinct species · 2 337 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°
26,1°C
Annual rain
1 983mm
Moisture idx (CMI)
0,03
Runoff
1 070mm/an
PET
1 919mm
AET
1 522mm
Mean slope
2,7°
Water table
103cm
Forest
67%
Crops
4%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)