HydroBASINS lev08 watershed · #3080185290
Bassin de Олойчан
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 1 administrative regions : Bilibinskiy rayon
Sub-basin area
130,9km²
Upstream area
6 054,3km²
Discharge
48,49m³/s
Mean elev.
184m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Олойчан1015 km²
- Bassin de Олойчан625 km²
1 dept-equivalent regions (GADM L2)
- 131.8 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
0 distinct species · 0 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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°
-12,1°C
Annual rain
246mm
Moisture idx (CMI)
-0,40
Runoff
245mm/an
PET
410mm
AET
230mm
Mean slope
5,3°
Water table
108cm
Forest
66%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)