HydroBASINS lev08 watershed · #2080979440
Bassin de وادي ثجر
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 : Al Harjah, Tathlith, Thar
Sub-basin area
860,5km²
Upstream area
860,8km²
Discharge
1,97m³/s
Mean elev.
1 627m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 837.8 km²97.7% of basin
- 19.8 km²2.3% of basin
- TharNajran · Saudi Arabia0.3 km²0.0% 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°
21,5°C
Annual rain
157mm
Moisture idx (CMI)
-0,91
Runoff
78mm/an
PET
1 801mm
AET
130mm
Mean slope
4,1°
Water table
528cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)