HydroBASINS lev08 watershed · #3080130000
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 3 administrative regions : Bilibinskiy rayon, Nizhnekolymskiy rayon, Srednekolymskiy rayon
Sub-basin area
1 212,2km²
Upstream area
113 518,6km²
Discharge
786,86m³/s
Mean elev.
38m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Омолон474 km²
- Bassin de Омолон53 km²
3 dept-equivalent regions (GADM L2)
- 1091.6 km²89.4% of basin
- 72.6 km²5.9% of basin
- 56.6 km²4.6% of basin
2 intersecting protected areas
CHajgurgino (CHajgurino)
IUCN VIResource Reserve
1047.83 km² overlap
Kolyma
IUCN IINatural Park
51.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
134 distinct species · 600 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 : 19 espèces reliées par 47 interactions GloBI sur 2 types (connectance 14.5%, filtre Serrano α=0.2). 7 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°
-12,6°C
Annual rain
186mm
Moisture idx (CMI)
-0,51
Runoff
132mm/an
PET
381mm
AET
191mm
Mean slope
4,0°
Water table
64cm
Forest
30%
Crops
0%
Urban
0%
Protected
87%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)