HydroBASINS lev08 watershed · #2080086330
Bassin de وادي نيال
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 : Duma al-Jandal, Hail, Tabuk, Tayma
Sub-basin area
2 537,1km²
Upstream area
8 679km²
Discharge
0m³/s
Mean elev.
816m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de وادي نيال412 km²
- Bassin de وادي نيال212 km²
4 dept-equivalent regions (GADM L2)
- TaymaTabuk · Saudi Arabia1284.9 km²50.7% of basin
- 1071.3 km²42.3% of basin
- TabukTabuk · Saudi Arabia140.8 km²5.6% of basin
- 36.6 km²1.4% of basin
1 intersecting protected areas
Royal Reserve
2533.52 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
5mm/an
PET
1 677mm
AET
50mm
Mean slope
0,7°
Water table
241cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)