HydroBASINS lev08 watershed · #3080576160
Bassin de Ока
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 : Balaganskiy rayon, Kuytunskiy rayon
Sub-basin area
492,8km²
Upstream area
36 101,2km²
Discharge
280,33m³/s
Mean elev.
522m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Тельба283 km²
- Bassin de Ока236 km²
2 dept-equivalent regions (GADM L2)
- Kuytunskiy rayonIrkutsk · Russia471.5 km²95.2% of basin
- Balaganskiy rayonIrkutsk · Russia23.6 km²4.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 2 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
-1,9°C
Annual rain
384mm
Moisture idx (CMI)
-0,42
Runoff
14mm/an
PET
667mm
AET
338mm
Mean slope
5,2°
Water table
147cm
Forest
77%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)