HydroBASINS lev08 watershed · #1080245850
Bassin de Oued Tiedaf
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 : Bordj Omar Driss, Idles, Illizi
Sub-basin area
804,5km²
Upstream area
7 151,4km²
Discharge
0m³/s
Mean elev.
606m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Iskaouene3033 km²
- Bassin de Oued Arraguene1584 km²
3 dept-equivalent regions (GADM L2)
- 450.6 km²56.1% of basin
- 200.7 km²25.0% of basin
- Bordj Omar DrissIllizi · Algeria151.8 km²18.9% of basin
3 intersecting protected areas
Tassili N'Ajjer
IUCN Not ApplicableCultural Park
678.38 km² overlap
Tassili N'Ajjer
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
524.21 km² overlap
Tassili n'Ajjer
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
523.11 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°
24,3°C
Annual rain
17mm
Moisture idx (CMI)
-0,99
Runoff
2mm/an
PET
1 927mm
AET
10mm
Mean slope
4,6°
Water table
731cm
Forest
0%
Crops
0%
Urban
0%
Protected
65%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)