HydroBASINS lev08 watershed · #3080371300
Bassin de Олланджа
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 : Okhotskiy rayon, Oymyakonskiy rayon
Sub-basin area
856km²
Upstream area
856,1km²
Discharge
8,16m³/s
Mean elev.
1 391m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Okhotskiy rayonKhabarovsk · Russia798.3 km²92.7% of basin
- 62.8 km²7.3% 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
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
-16,3°C
Annual rain
411mm
Moisture idx (CMI)
0,16
Runoff
289mm/an
PET
342mm
AET
295mm
Mean slope
20,8°
Water table
408cm
Forest
14%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)