HydroBASINS lev08 watershed · #1080699450
Bassin de la Sirba
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 3 administrative regions : Gnagna, Komandjoari, Yagha
Sub-basin area
1 247,1km²
Upstream area
10 335,4km²
Discharge
4,08m³/s
Mean elev.
270m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Sirba445 km²
- Bassin · #1080705960325 km²
3 dept-equivalent regions (GADM L2)
- 513.4 km²41.3% of basin
- 409.2 km²32.9% of basin
- 319.8 km²25.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
81 distinct species · 401 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°
28,4°C
Annual rain
588mm
Moisture idx (CMI)
-0,72
Runoff
16mm/an
PET
2 078mm
AET
495mm
Mean slope
0,3°
Water table
123cm
Forest
0%
Crops
20%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)