HydroBASINS lev08 watershed · #2080182530
Bassin de Ирва
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 : Knyazhpogostskiy rayon, Udorskiy rayon
Sub-basin area
270,7km²
Upstream area
3 006,7km²
Discharge
35,44m³/s
Mean elev.
147m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ирва492 km²
- Bassin de Ёлва394 km²
2 dept-equivalent regions (GADM L2)
- 262.3 km²96.3% of basin
- 10.0 km²3.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 1 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°
-0,7°C
Annual rain
588mm
Moisture idx (CMI)
0,13
Runoff
376mm/an
PET
510mm
AET
396mm
Mean slope
3,4°
Water table
58cm
Forest
99%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)