HydroBASINS lev08 watershed · #1080158850
Bassin · #1080158850
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 across 2 countries : Erg Ferradj, Errachidia, Igli, Mechraa Houari Boumediene, Tabelbala
Sub-basin area
782km²
Upstream area
1 791,6km²
Discharge
1,31m³/s
Mean elev.
739m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080153060674 km²
- Bassin · #1080153140336 km²
5 dept-equivalent regions (GADM L2)
- 441.3 km²56.5% of basin
- 303.7 km²38.9% of basin
- 25.3 km²3.2% of basin
- 10.8 km²1.4% of basin
- Errachidia0.1 km²0.0% of basin
2 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
1.82 km² overlap
Rissani
IUCN Not ApplicablePermanent Hunting Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 1 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°
22,1°C
Annual rain
48mm
Moisture idx (CMI)
-0,97
Runoff
23mm/an
PET
1 799mm
AET
38mm
Mean slope
0,4°
Water table
396cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)