HydroBASINS lev08 watershed · #3080236440
Bassin de Унтымвеем
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 : Anadyrskiy rayon
Sub-basin area
109,5km²
Upstream area
6 175,4km²
Discharge
49,79m³/s
Mean elev.
28m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чинейвеем529 km²
- Bassin de Чинейвеем57 km²
1 dept-equivalent regions (GADM L2)
- 110.3 km²100.0% of basin
1 intersecting protected areas
Lebedinyj
IUCN IVState Natural Zakaznik
110.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 2 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°
-9,2°C
Annual rain
302mm
Moisture idx (CMI)
-0,23
Runoff
277mm/an
PET
391mm
AET
261mm
Mean slope
3,3°
Water table
64cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)