HydroBASINS lev08 watershed · #2080238960
Bassin de Олешня
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 : Kirishskiy rayon, Volkhovskiy rayon
Sub-basin area
382km²
Upstream area
382km²
Discharge
2,62m³/s
Mean elev.
54m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 251.9 km²65.6% of basin
- 132.2 km²34.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 distinct species · 9 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°
3,7°C
Annual rain
651mm
Moisture idx (CMI)
0,11
Runoff
216mm/an
PET
578mm
AET
439mm
Mean slope
1,0°
Water table
44cm
Forest
97%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)