HydroBASINS lev08 watershed · #1080825550
Bassin de Umbelasha
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 across 3 countries : Birao, Buram, Raja, Yalinga
Sub-basin area
4 829,6km²
Upstream area
4 829,6km²
Discharge
6,3m³/s
Mean elev.
647m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Buram4776.1 km²99.3% of basin
- 21.5 km²0.4% of basin
- 7.1 km²0.1% of basin
- 5.0 km²0.1% of basin
1 intersecting protected areas
Yata-Ngaya
IUCN IVFaunal Reserve
25.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 distinct species · 8 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°
25,7°C
Annual rain
832mm
Moisture idx (CMI)
-0,61
Runoff
44mm/an
PET
2 128mm
AET
702mm
Mean slope
1,2°
Water table
177cm
Forest
9%
Crops
1%
Urban
1%
Protected
39%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)