HydroBASINS lev08 watershed · #3080226790
Bassin de Омолон
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 : Bilibinskiy rayon, Severo-Evenskiy rayon
Sub-basin area
862,9km²
Upstream area
42 495km²
Discharge
277,55m³/s
Mean elev.
315m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Малый Чагачан792 km²
- Bassin de Омолон125 km²
2 dept-equivalent regions (GADM L2)
- 509.9 km²58.7% of basin
- 358.8 km²41.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
52 distinct species · 120 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Омолон : 9 espèces reliées par 14 interactions GloBI sur 3 types (connectance 21.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-11,7°C
Annual rain
265mm
Moisture idx (CMI)
-0,33
Runoff
222mm/an
PET
399mm
AET
242mm
Mean slope
3,8°
Water table
75cm
Forest
76%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)