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
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°
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)