HydroBASINS lev08 watershed · #1080288120
Bassin de Oued Tirest
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 : Bordj El Haouasse, Illizi
Sub-basin area
50,2km²
Upstream area
1 395,7km²
Discharge
0,06m³/s
Mean elev.
1 228m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Tirest926 km²
- Bassin de Oued Touknout419 km²
2 dept-equivalent regions (GADM L2)
- 36.6 km²73.1% of basin
- Bordj El HaouasseIllizi · Algeria13.5 km²26.9% of basin
2 intersecting protected areas
Tassili N'Ajjer
IUCN Not ApplicableCultural Park
50.10 km² overlap
Tassili N'Ajjer
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
50.10 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°
22,2°C
Annual rain
32mm
Moisture idx (CMI)
-0,98
Runoff
5mm/an
PET
1 790mm
AET
23mm
Mean slope
0,3°
Water table
156cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)