HydroBASINS lev08 watershed · #4080100190
Bassin de Амгунь
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 : im. Poliny Osipenko rayon
Sub-basin area
173,3km²
Upstream area
173,3km²
Discharge
1,19m³/s
Mean elev.
314m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- im. Poliny Osipenko rayonKhabarovsk · Russia174.0 km²100.0% of basin
1 intersecting protected areas
Reka Somnya
IUCN IIINatural Monument
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
10 distinct species · 11 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°
-3,0°C
Annual rain
599mm
Moisture idx (CMI)
0,07
Runoff
217mm/an
PET
551mm
AET
440mm
Mean slope
11,2°
Water table
188cm
Forest
86%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)