HydroBASINS lev08 watershed · #1080490500
Bassin · #1080490500
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
643,1km²
Upstream area
643,2km²
Discharge
0,03m³/s
Mean elev.
429m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 632.3 km²98.6% of basin
- 8.9 km²1.4% of basin
3 intersecting protected areas
Nature Reserve
583.33 km² overlap
Aïr et Ténéré
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
583.33 km² overlap
Aïr and Ténéré Natural Reserves
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
583.33 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
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,0°C
Annual rain
20mm
Moisture idx (CMI)
-0,99
Runoff
1mm/an
PET
2 137mm
AET
12mm
Mean slope
0,2°
Water table
45cm
Forest
0%
Crops
0%
Urban
0%
Protected
91%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)