HydroBASINS lev08 watershed · #2080986760
Bassin de وادي نجران
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 2 administrative regions : Khubash, Thar
Sub-basin area
2 338,4km²
Upstream area
13 015,9km²
Discharge
6,97m³/s
Mean elev.
954m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de وادي نجران1313 km²
- Bassin · #2080986280560 km²
2 dept-equivalent regions (GADM L2)
- KhubashNajran · Saudi Arabia2088.2 km²89.6% of basin
- TharNajran · Saudi Arabia242.6 km²10.4% of basin
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°
24,8°C
Annual rain
81mm
Moisture idx (CMI)
-0,96
Runoff
7mm/an
PET
1 953mm
AET
64mm
Mean slope
0,8°
Water table
225cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)