HydroBASINS lev08 watershed · #2080470920
Bassin de l'Orvanne
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 : Loiret, Seine-et-Marne, Yonne
Sub-basin area
779,3km²
Upstream area
4 149,1km²
Discharge
28,27m³/s
Mean elev.
119m
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°
10,8°C
Annual rain
653mm
Moisture idx (CMI)
-0,23
Runoff
204mm/an
PET
849mm
AET
550mm
Mean slope
1,6°
Water table
142cm
Forest
10%
Crops
56%
Urban
4%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)