HydroBASINS lev08 watershed · #5080124910
Bassin de Sungai Sedalid
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 5 administrative regions across 2 countries : Malinau, Nabawan, Nunukan, Sipitang, Tenom
Sub-basin area
1 626,7km²
Upstream area
1 626,8km²
Discharge
72,75m³/s
Mean elev.
861m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Nunukan1230.0 km²75.9% of basin
- 370.3 km²22.9% of basin
- 8.7 km²0.5% of basin
- 5.7 km²0.3% of basin
- 4.9 km²0.3% of basin
3 intersecting protected areas
Kayan Mentarang
IUCN IINational Park
754.83 km² overlap
Gunung Kumaka
IUCN IaForest Reserve
62.31 km² overlap
Sipitang
IUCN IaForest Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
39 distinct species · 47 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°
22,7°C
Annual rain
2 690mm
Moisture idx (CMI)
0,51
Runoff
1 412mm/an
PET
1 329mm
AET
1 329mm
Mean slope
16,4°
Water table
431cm
Forest
93%
Crops
11%
Urban
0%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)