HydroBASINS lev08 watershed · #2080982800
Bassin · #2080982800
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 : Al Harjah, Tathlith, Thar, Yadamah
Sub-basin area
594,3km²
Upstream area
594,3km²
Discharge
0m³/s
Mean elev.
1 622m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- TharNajran · Saudi Arabia327.8 km²55.3% of basin
- YadamahNajran · Saudi Arabia226.6 km²38.3% of basin
- 30.4 km²5.1% of basin
- 7.6 km²1.3% 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
154mm
Moisture idx (CMI)
-0,92
Runoff
61mm/an
PET
1 818mm
AET
127mm
Mean slope
6,8°
Water table
586cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)