HydroBASINS lev08 watershed · #2080969830
Bassin · #2080969830
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
1 418,1km²
Upstream area
1 418,1km²
Discharge
0,03m³/s
Mean elev.
724m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 993.5 km²70.3% of basin
- YadamahNajran · Saudi Arabia420.3 km²29.7% of basin
2 intersecting protected areas
'Uruq Bani Ma'arid
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
696.33 km² overlap
'Uruq Bani Ma'arid
IUCN VIProtected Area
691.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 distinct species · 20 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°
25,8°C
Annual rain
56mm
Moisture idx (CMI)
-0,97
Runoff
3mm/an
PET
1 963mm
AET
44mm
Mean slope
2,3°
Water table
460cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)