HydroBASINS lev08 watershed · #1080153140
Bassin · #1080153140
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 2 administrative regions across 2 countries : Errachidia, Tabelbala
Sub-basin area
335,9km²
Upstream area
335,9km²
Discharge
0,25m³/s
Mean elev.
779m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 186.6 km²55.6% of basin
- Errachidia148.9 km²44.4% of basin
2 intersecting protected areas
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
199.09 km² overlap
Rissani
IUCN Not ApplicablePermanent Hunting Reserve
198.68 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
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
21,8°C
Annual rain
50mm
Moisture idx (CMI)
-0,97
Runoff
25mm/an
PET
1 788mm
AET
40mm
Mean slope
0,7°
Water table
551cm
Forest
0%
Crops
0%
Urban
0%
Protected
31%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)