HydroBASINS lev08 watershed · #1080089110
Bassin de Oued Nahr-Ouassel
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 5 administrative regions : Azziz, Bordj El Emir Abdelkader, Bouaiche, Chahbounia, Derrag
Sub-basin area
267km²
Upstream area
267,1km²
Discharge
1,09m³/s
Mean elev.
888m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 105.9 km²39.7% of basin
- 103.8 km²38.9% of basin
- 55.7 km²20.8% of basin
- Bordj El Emir AbdelkaderTissemsilt · Algeria0.9 km²0.3% of basin
- 0.8 km²0.3% of basin
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°
15,1°C
Annual rain
454mm
Moisture idx (CMI)
-0,60
Runoff
129mm/an
PET
1 136mm
AET
387mm
Mean slope
3,3°
Water table
290cm
Forest
0%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)