HydroBASINS lev08 watershed · #1080825780
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 2 administrative regions across 2 countries : Buram, Raja
Sub-basin area
185,9km²
Upstream area
10 515km²
Discharge
19,13m³/s
Mean elev.
516m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Adda3921 km²
- Bassin de Rikki3569 km²
2 dept-equivalent regions (GADM L2)
- 97.9 km²52.9% of basin
- Buram87.2 km²47.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 1 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°
26,6°C
Annual rain
763mm
Moisture idx (CMI)
-0,65
Runoff
44mm/an
PET
2 178mm
AET
643mm
Mean slope
0,2°
Water table
61cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)