HydroBASINS lev08 watershed · #3080290360
Bassin de Тамватвеем
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
397,1km²
Upstream area
3 578,3km²
Discharge
42,26m³/s
Mean elev.
140m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Тамватвеем1855 km²
- Bassin de Малый Научирынай317 km²
1 dept-equivalent regions (GADM L2)
- 399.7 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 distinct species · 4 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°
-7,1°C
Annual rain
355mm
Moisture idx (CMI)
0,04
Runoff
369mm/an
PET
341mm
AET
261mm
Mean slope
4,8°
Water table
108cm
Forest
3%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)