HydroBASINS lev08 watershed · #2080970250
Bassin · #2080970250
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 : As Sulayyil, Yadamah
Sub-basin area
583,3km²
Upstream area
583,3km²
Discharge
0,04m³/s
Mean elev.
687m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 418.6 km²72.0% of basin
- YadamahNajran · Saudi Arabia163.0 km²28.0% of basin
2 intersecting protected areas
'Uruq Bani Ma'arid
IUCN VIProtected Area
235.64 km² overlap
'Uruq Bani Ma'arid
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
235.33 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 2 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°
25,9°C
Annual rain
53mm
Moisture idx (CMI)
-0,97
Runoff
3mm/an
PET
1 958mm
AET
41mm
Mean slope
2,2°
Water table
319cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)