HydroBASINS lev08 watershed · #2080087020
Bassin · #2080087020
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 : Thar, Yadamah
Sub-basin area
837km²
Upstream area
3 762,8km²
Discharge
0,71m³/s
Mean elev.
928m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin · #2080981110414 km²
- Bassin · #2080981150141 km²
2 dept-equivalent regions (GADM L2)
- YadamahNajran · Saudi Arabia676.8 km²81.1% of basin
- TharNajran · Saudi Arabia157.7 km²18.9% of basin
2 intersecting protected areas
'Uruq Bani Ma'arid
IUCN VIProtected Area
113.03 km² overlap
'Uruq Bani Ma'arid
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
86.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 distinct species · 11 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°
25,1°C
Annual rain
81mm
Moisture idx (CMI)
-0,96
Runoff
5mm/an
PET
1 971mm
AET
65mm
Mean slope
1,7°
Water table
309cm
Forest
0%
Crops
0%
Urban
0%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)