HydroBASINS lev08 watershed · #3080567290
Bassin de Ия
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 : Bratskiy rayon
Sub-basin area
237km²
Upstream area
24 551,5km²
Discharge
151,65m³/s
Mean elev.
475m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Тангуй1965 km²
- Bassin de Ия364 km²
1 dept-equivalent regions (GADM L2)
- Bratskiy rayonIrkutsk · Russia238.1 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 distinct species · 10 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°
-1,5°C
Annual rain
383mm
Moisture idx (CMI)
-0,43
Runoff
9mm/an
PET
670mm
AET
337mm
Mean slope
2,0°
Water table
58cm
Forest
77%
Crops
16%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)