HydroBASINS lev08 watershed · #5080133920
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 : Malinau
Sub-basin area
471,2km²
Upstream area
6 244,4km²
Discharge
339,6m³/s
Mean elev.
873m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sungai Kayan528 km²
- Bassin de Sungai Kayan227 km²
1 dept-equivalent regions (GADM L2)
- 469.1 km²100.0% of basin
1 intersecting protected areas
Kayan Mentarang
IUCN IINational Park
39.80 km² overlap
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°
22,2°C
Annual rain
3 708mm
Moisture idx (CMI)
0,64
Runoff
1 759mm/an
PET
1 350mm
AET
1 350mm
Mean slope
14,4°
Water table
308cm
Forest
97%
Crops
10%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)