HydroBASINS lev08 watershed · #4081033770
Bassin · #4081033770
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 : Viengkham, Viengthong
Sub-basin area
425,1km²
Upstream area
425,1km²
Discharge
5,57m³/s
Mean elev.
1 120m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- ViengkhamLouangphrabang · Laos283.5 km²66.9% of basin
- 140.4 km²33.1% of basin
1 intersecting protected areas
Nam Et-Phouloey
IUCN IINational Park
332.82 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
0 distinct species · 0 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
19,6°C
Annual rain
1 591mm
Moisture idx (CMI)
0,13
Runoff
432mm/an
PET
1 385mm
AET
964mm
Mean slope
17,4°
Water table
625cm
Forest
11%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)