HydroBASINS lev08 watershed · #5080001900
Bassin de Aek Tumba
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 4 administrative regions : Aceh Singkil, Humbang Hasundutan, Pakpak Barat, Tapanuli Tengah
Sub-basin area
595,6km²
Upstream area
595,6km²
Discharge
18,14m³/s
Mean elev.
121m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 289.7 km²48.9% of basin
- 255.3 km²43.1% of basin
- 42.7 km²7.2% of basin
- 5.2 km²0.9% 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°
26,1°C
Annual rain
3 602mm
Moisture idx (CMI)
0,53
Runoff
1 106mm/an
PET
1 699mm
AET
1 699mm
Mean slope
6,0°
Water table
171cm
Forest
57%
Crops
29%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)