HydroBASINS lev08 watershed · #2080432040
Bassin de la Somme Rivière
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 5 administrative regions : Aisne, Nord, Oise, Pas-de-Calais, Somme
Sub-basin area
1 803,8km²
Upstream area
1 803,8km²
Discharge
20,44m³/s
Mean elev.
89m
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°
9,9°C
Annual rain
652mm
Moisture idx (CMI)
-0,15
Runoff
337mm/an
PET
764mm
AET
536mm
Mean slope
1,5°
Water table
81cm
Forest
0%
Crops
69%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)