HydroBASINS lev08 watershed · #2080973800
Bassin · #2080973800
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 : As Sulayyil, Sharurah, Yadamah
Sub-basin area
463,9km²
Upstream area
1 146,8km²
Discharge
0m³/s
Mean elev.
721m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #2080975770374 km²
- Bassin · #2080975850310 km²
3 dept-equivalent regions (GADM L2)
- YadamahNajran · Saudi Arabia367.5 km²79.5% of basin
- 79.8 km²17.3% of basin
- SharurahNajran · Saudi Arabia15.2 km²3.3% of basin
2 intersecting protected areas
'Uruq Bani Ma'arid
IUCN VIProtected Area
171.36 km² overlap
'Uruq Bani Ma'arid
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
156.15 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°
25,7°C
Annual rain
54mm
Moisture idx (CMI)
-0,97
Runoff
4mm/an
PET
1 954mm
AET
41mm
Mean slope
2,1°
Water table
211cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)