HydroBASINS lev08 watershed · #1080141400
Bassin de Oued Gheris ⴰⵙⵉⴼ ⵏ ⵖⵔⵉⵙ وادي اغريس
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 1 administrative regions : Errachidia
Sub-basin area
80km²
Upstream area
11 636,1km²
Discharge
31,4m³/s
Mean elev.
741m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
1 dept-equivalent regions (GADM L2)
- Errachidia80.0 km²100.0% of basin
2 intersecting protected areas
Rissani
IUCN Not ApplicablePermanent Hunting Reserve
79.97 km² overlap
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
79.97 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°
21,5°C
Annual rain
62mm
Moisture idx (CMI)
-0,96
Runoff
32mm/an
PET
1 769mm
AET
50mm
Mean slope
2,7°
Water table
289cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)