HydroBASINS lev08 watershed · #1081622820
Bassin de Annisrivier
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 across 2 countries : Namakwa, Oranjemund
Sub-basin area
554,8km²
Upstream area
554,8km²
Discharge
0,16m³/s
Mean elev.
441m
Administrative coverage
Species present
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°
16,7°C
Annual rain
70mm
Moisture idx (CMI)
-0,95
Runoff
8mm/an
PET
1 335mm
AET
62mm
Mean slope
9,3°
Water table
1 190cm
Forest
0%
Crops
0%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)