HydroBASINS lev08 watershed · #5080134250
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 2 administrative regions : Bulungan, Malinau
Sub-basin area
711,7km²
Upstream area
9 717,8km²
Discharge
554,19m³/s
Mean elev.
894m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sungai Kayan951 km²
- Bassin de Sungai Kayananbiu385 km²
2 dept-equivalent regions (GADM L2)
- 707.4 km²99.8% of basin
- 1.1 km²0.2% 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°
22,1°C
Annual rain
3 349mm
Moisture idx (CMI)
0,60
Runoff
1 990mm/an
PET
1 336mm
AET
1 336mm
Mean slope
19,2°
Water table
496cm
Forest
94%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)