HydroBASINS lev08 watershed · #4080154060
Bassin de Онон
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 across 2 countries : Batshireet, Kyrinskiy rayon
Sub-basin area
394,2km²
Upstream area
2 868km²
Discharge
7,48m³/s
Mean elev.
1 514m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Онон529 km²
- Bassin de Куя369 km²
2 dept-equivalent regions (GADM L2)
- 200.2 km²50.6% of basin
- 195.3 km²49.4% of basin
1 intersecting protected areas
Khan Khentii
IUCN IbStrictly Protected Area
2.95 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
0 distinct species · 0 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°
-4,4°C
Annual rain
437mm
Moisture idx (CMI)
-0,31
Runoff
108mm/an
PET
638mm
AET
383mm
Mean slope
9,9°
Water table
261cm
Forest
90%
Crops
3%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)