HydroBASINS lev08 watershed · #2080422860
Bassin de l'Hirondelle
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 : Nord, Pas-de-Calais
Sub-basin area
212,1km²
Upstream area
212,1km²
Discharge
2,71m³/s
Mean elev.
80m
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
668mm
Moisture idx (CMI)
-0,11
Runoff
403mm/an
PET
747mm
AET
536mm
Mean slope
1,2°
Water table
52cm
Forest
0%
Crops
69%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)