HydroBASINS lev08 watershed · #2080459960
Bassin de l'Yerres
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 4 administrative regions : Essonne, Seine-et-Marne, Val-de-Marne, Yvelines
Sub-basin area
2 200,5km²
Upstream area
30 654,8km²
Discharge
215,43m³/s
Mean elev.
117m
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°
10,7°C
Annual rain
645mm
Moisture idx (CMI)
-0,21
Runoff
196mm/an
PET
820mm
AET
543mm
Mean slope
1,4°
Water table
151cm
Forest
12%
Crops
45%
Urban
30%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)