HydroBASINS lev08 watershed · #1080747050
Bassin de Koumba
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 : Gaoual, Lélouma
Sub-basin area
228,5km²
Upstream area
3 397,1km²
Discharge
52,8m³/s
Mean elev.
266m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Koumba199 km²
- Bassin de Koumba32 km²
2 dept-equivalent regions (GADM L2)
- 183.4 km²80.6% of basin
- 44.1 km²19.4% of basin
1 intersecting protected areas
Nialama (or Nyalama)
IUCN Not ReportedClassified Forest
58.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 3 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°
26,5°C
Annual rain
1 744mm
Moisture idx (CMI)
-0,10
Runoff
456mm/an
PET
1 930mm
AET
1 029mm
Mean slope
6,2°
Water table
322cm
Forest
80%
Crops
9%
Urban
0%
Protected
26%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)