HydroBASINS lev08 watershed · #2080983010
Bassin · #2080983010
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 : Marbat, Muqshin, Sudh, Thumrait
Sub-basin area
1 815,1km²
Upstream area
1 815,6km²
Discharge
0,84m³/s
Mean elev.
310m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 961.0 km²53.1% of basin
- 805.6 km²44.5% of basin
- 41.7 km²2.3% of basin
- 1.1 km²0.1% of basin
2 intersecting protected areas
Eastern Najed Reserve
IUCN VINature Reserve
277.72 km² overlap
Jabal Samhan Reserve
IUCN IVNature Reserve
60.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 distinct species · 6 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°
26,1°C
Annual rain
39mm
Moisture idx (CMI)
-0,98
Runoff
22mm/an
PET
1 830mm
AET
29mm
Mean slope
0,4°
Water table
135cm
Forest
0%
Crops
0%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)