HydroBASINS lev08 watershed · #5080131030
Bassin de Sungai Kayan
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 1 administrative regions : Bulungan
Sub-basin area
136,2km²
Upstream area
26 186,4km²
Discharge
1 404,15m³/s
Mean elev.
353m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sungai Kayan849 km²
- Bassin de Sungai Lejoh385 km²
1 dept-equivalent regions (GADM L2)
- 135.3 km²99.8% of basin
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
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
25,1°C
Annual rain
3 131mm
Moisture idx (CMI)
0,54
Runoff
1 378mm/an
PET
1 426mm
AET
1 426mm
Mean slope
16,2°
Water table
542cm
Forest
97%
Crops
11%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)