HydroBASINS lev08 watershed · #3080128930
Bassin de Ольвегыргываам
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 : Chaunskiy rayon
Sub-basin area
432km²
Upstream area
2 999km²
Discharge
12,98m³/s
Mean elev.
109m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ольвегыргываам1354 km²
- Bassin de Линлинейвеем40 km²
1 dept-equivalent regions (GADM L2)
- 435.1 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
24 distinct species · 25 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°
-13,6°C
Annual rain
185mm
Moisture idx (CMI)
-0,46
Runoff
141mm/an
PET
346mm
AET
187mm
Mean slope
7,3°
Water table
100cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)