HydroBASINS lev08 watershed · #4081084830
Bassin de ลำน้ำอูน
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 : Muang Sakon Nakhon, Phanna Nikhom
Sub-basin area
209,9km²
Upstream area
209,9km²
Discharge
4,94m³/s
Mean elev.
206m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 136.2 km²65.1% of basin
- 73.1 km²34.9% of basin
1 intersecting protected areas
Phu Phan
IUCN IINational Park
34.91 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
17 distinct species · 25 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°
26,0°C
Annual rain
1 667mm
Moisture idx (CMI)
0,02
Runoff
743mm/an
PET
1 638mm
AET
1 034mm
Mean slope
1,6°
Water table
83cm
Forest
23%
Crops
25%
Urban
8%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)