HydroBASINS lev08 watershed · #3080509290
Bassin de Чая
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 4 administrative regions : Kazachinsko-Lenskiy rayon, Kirenskiy rayon, Mamsko-Chuyskiy rayon, Severobaykal'skiy
Sub-basin area
2 411,1km²
Upstream area
5 081,9km²
Discharge
57,16m³/s
Mean elev.
1 005m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чая1763 km²
- Bassin · #3080526170908 km²
4 dept-equivalent regions (GADM L2)
- Kirenskiy rayonIrkutsk · Russia1425.8 km²58.8% of basin
- 851.6 km²35.1% of basin
- Mamsko-Chuyskiy rayonIrkutsk · Russia139.5 km²5.8% of basin
- Kazachinsko-Lenskiy rayonIrkutsk · Russia6.2 km²0.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
13 distinct species · 13 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°
-6,9°C
Annual rain
445mm
Moisture idx (CMI)
-0,14
Runoff
371mm/an
PET
522mm
AET
375mm
Mean slope
9,0°
Water table
243cm
Forest
79%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)