HydroBASINS lev08 watershed · #1080493330
Bassin · #1080493330
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 2 administrative regions : Arlit, Bilma
Sub-basin area
995,9km²
Upstream area
7 093,3km²
Discharge
3,35m³/s
Mean elev.
416m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080504540534 km²
- Bassin · #1080504210431 km²
2 dept-equivalent regions (GADM L2)
- 647.0 km²65.2% of basin
- 345.7 km²34.8% of basin
3 intersecting protected areas
Nature Reserve
234.59 km² overlap
Aïr et Ténéré
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
234.59 km² overlap
Aïr and Ténéré Natural Reserves
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
234.59 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°
27,0°C
Annual rain
20mm
Moisture idx (CMI)
-0,99
Runoff
1mm/an
PET
2 145mm
AET
12mm
Mean slope
0,3°
Water table
36cm
Forest
0%
Crops
0%
Urban
0%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)