HydroBASINS lev08 watershed · #1080505370
Bassin · #1080505370
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
1 019,5km²
Upstream area
6 866,1km²
Discharge
5,52m³/s
Mean elev.
435m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080516280752 km²
- Bassin · #1080516270340 km²
3 dept-equivalent regions (GADM L2)
- 846.8 km²83.3% of basin
- 139.6 km²13.7% of basin
- 29.9 km²2.9% of basin
3 intersecting protected areas
Nature Reserve
849.18 km² overlap
Aïr et Ténéré
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
849.18 km² overlap
Aïr and Ténéré Natural Reserves
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
849.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
0 distinct species · 0 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°
27,1°C
Annual rain
25mm
Moisture idx (CMI)
-0,99
Runoff
3mm/an
PET
2 139mm
AET
16mm
Mean slope
0,4°
Water table
110cm
Forest
0%
Crops
0%
Urban
0%
Protected
84%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)