HydroBASINS lev08 watershed · #1080153060
Bassin · #1080153060
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 across 2 countries : Erg Ferradj, Errachidia, Tabelbala
Sub-basin area
674km²
Upstream area
674km²
Discharge
0,5m³/s
Mean elev.
783m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Errachidia425.3 km²63.2% of basin
- 140.0 km²20.8% of basin
- 108.1 km²16.1% of basin
2 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
442.37 km² overlap
Rissani
IUCN Not ApplicablePermanent Hunting Reserve
441.73 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 2 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°
21,7°C
Annual rain
53mm
Moisture idx (CMI)
-0,97
Runoff
25mm/an
PET
1 774mm
AET
42mm
Mean slope
0,5°
Water table
536cm
Forest
0%
Crops
0%
Urban
0%
Protected
25%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)