HydroBASINS lev08 watershed · #2080979730
Bassin de وادي الجماة
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 : Tathlith, Yadamah
Sub-basin area
1 165,7km²
Upstream area
1 165,8km²
Discharge
1,07m³/s
Mean elev.
1 091m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- YadamahNajran · Saudi Arabia1153.0 km²99.2% of basin
- 9.1 km²0.8% 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
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
24,6°C
Annual rain
101mm
Moisture idx (CMI)
-0,95
Runoff
34mm/an
PET
1 951mm
AET
83mm
Mean slope
1,4°
Water table
394cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)