HydroBASINS lev08 watershed · #2080581780
Bassin du Grand Hers
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 3 administrative regions : Ariège, Aude, Haute-Garonne
Sub-basin area
1 389,7km²
Upstream area
1 389,9km²
Discharge
14,55m³/s
Mean elev.
531m
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°
11,6°C
Annual rain
819mm
Moisture idx (CMI)
-0,10
Runoff
358mm/an
PET
906mm
AET
663mm
Mean slope
8,2°
Water table
395cm
Forest
56%
Crops
38%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)