HydroBASINS lev08 watershed · #5080188590
Bassin de Sepik River
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 : Ambunti-Dreikikir, Telefomin
Sub-basin area
403,6km²
Upstream area
19 441,4km²
Discharge
1 412,57m³/s
Mean elev.
58m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sand River1769 km²
- Bassin de Sepik River164 km²
2 dept-equivalent regions (GADM L2)
- 241.4 km²60.1% of basin
- 160.4 km²39.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 3 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
3 046mm
Moisture idx (CMI)
0,50
Runoff
1 469mm/an
PET
1 528mm
AET
1 528mm
Mean slope
2,0°
Water table
56cm
Forest
65%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)