HydroBASINS lev08 watershed · #1080508310
Bassin · #1080508310
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 3 administrative regions : Arlit, Bilma, Tchighozerine
Sub-basin area
1 513,6km²
Upstream area
9 964,3km²
Discharge
5,56m³/s
Mean elev.
420m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080504980831 km²
- Bassin · #108050497023 km²
3 dept-equivalent regions (GADM L2)
- 1196.6 km²79.3% of basin
- 207.2 km²13.7% of basin
- 105.0 km²7.0% of basin
4 intersecting protected areas
Termit et Tin-Toumma
IUCN IVNature Reserve
226.12 km² overlap
Nature Reserve
123.77 km² overlap
Aïr et Ténéré
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
118.79 km² overlap
Aïr and Ténéré Natural Reserves
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
118.79 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 2 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°
27,0°C
Annual rain
22mm
Moisture idx (CMI)
-0,99
Runoff
1mm/an
PET
2 151mm
AET
13mm
Mean slope
0,7°
Water table
99cm
Forest
0%
Crops
0%
Urban
0%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)