HydroBASINS lev08 watershed · #1080117890
Bassin de Oued El Rharbi
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 8 administrative regions : Ain El Orak, Arbaouat, Boussemghoun, Brezina, El Biodh Sidi Cheikh +3
Sub-basin area
2 437,8km²
Upstream area
3 810,3km²
Discharge
3,54m³/s
Mean elev.
1 006m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080111850772 km²
- Bassin · #1080111840675 km²
8 dept-equivalent regions (GADM L2)
- El Biodh Sidi CheikhEl Bayadh · Algeria1191.9 km²48.9% of basin
- 554.7 km²22.8% of basin
- 210.2 km²8.6% of basin
- 195.6 km²8.0% of basin
- 143.8 km²5.9% of basin
- BoussemghounEl Bayadh · Algeria98.5 km²4.0% of basin
- Ain El OrakEl Bayadh · Algeria29.7 km²1.2% of basin
- 12.1 km²0.5% of basin
1 intersecting protected areas
Atlas Saharien
IUCN Not ApplicableCultural Park
2064.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
27 distinct species · 39 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°
17,2°C
Annual rain
157mm
Moisture idx (CMI)
-0,89
Runoff
44mm/an
PET
1 417mm
AET
134mm
Mean slope
3,3°
Water table
774cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)