HydroBASINS lev08 watershed · #4081023670
Bassin de ນ້ຳອູ
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 : May, Samphanh
Sub-basin area
748,4km²
Upstream area
748,4km²
Discharge
20,42m³/s
Mean elev.
895m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 598.8 km²80.2% of basin
- 147.6 km²19.8% 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°
20,9°C
Annual rain
1 740mm
Moisture idx (CMI)
0,16
Runoff
845mm/an
PET
1 464mm
AET
1 031mm
Mean slope
15,9°
Water table
492cm
Forest
1%
Crops
3%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)