HydroBASINS lev08 watershed · #4080991550
Bassin de Sông Hiến
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 8 administrative regions : Ba Bể, Cao Bằng, Hoà An, Na Rì, Nguyên Bình +3
Sub-basin area
927,5km²
Upstream area
927,5km²
Discharge
18,7m³/s
Mean elev.
549m
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°
20,9°C
Annual rain
1 598mm
Moisture idx (CMI)
0,18
Runoff
637mm/an
PET
1 298mm
AET
1 065mm
Mean slope
15,1°
Water table
525cm
Forest
2%
Crops
13%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)