HydroBASINS lev08 watershed · #2080846630
Bassin de النجيلي
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 : Tabuk
Sub-basin area
561,1km²
Upstream area
1 124,9km²
Discharge
0m³/s
Mean elev.
823m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de وادي عسرات391 km²
- Bassin de وادي الملاويح172 km²
1 dept-equivalent regions (GADM L2)
- TabukTabuk · Saudi Arabia560.5 km²100.0% of basin
1 intersecting protected areas
Royal Reserve
560.46 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 distinct species · 7 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°
20,4°C
Annual rain
40mm
Moisture idx (CMI)
-0,98
Runoff
5mm/an
PET
1 679mm
AET
32mm
Mean slope
2,0°
Water table
325cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)