HydroBASINS lev08 watershed · #2080981510
Bassin · #2080981510
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 4 administrative regions : Khubash, Sharurah, Thar, Yadamah
Sub-basin area
1 206,1km²
Upstream area
2 177,8km²
Discharge
0,5m³/s
Mean elev.
979m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de وادي نعوان685 km²
- Bassin · #2080985870286 km²
4 dept-equivalent regions (GADM L2)
- TharNajran · Saudi Arabia857.1 km²71.3% of basin
- YadamahNajran · Saudi Arabia343.3 km²28.6% of basin
- KhubashNajran · Saudi Arabia1.6 km²0.1% of basin
- SharurahNajran · Saudi Arabia0.2 km²0.0% of basin
2 intersecting protected areas
'Uruq Bani Ma'arid
IUCN VIProtected Area
71.42 km² overlap
'Uruq Bani Ma'arid
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
57.27 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°
24,9°C
Annual rain
88mm
Moisture idx (CMI)
-0,96
Runoff
6mm/an
PET
1 968mm
AET
71mm
Mean slope
1,3°
Water table
387cm
Forest
0%
Crops
0%
Urban
0%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)