HydroBASINS lev08 watershed · #4080157730
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 3 administrative regions : Batshireet, Möngönmorit, Ömnödelger
Sub-basin area
647,5km²
Upstream area
647,5km²
Discharge
1,71m³/s
Mean elev.
1 615m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 601.7 km²92.6% of basin
- 42.8 km²6.6% of basin
- 5.1 km²0.8% of basin
1 intersecting protected areas
Khan Khentii
IUCN IbStrictly Protected Area
649.56 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
30 distinct species · 54 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°
-4,7°C
Annual rain
423mm
Moisture idx (CMI)
-0,34
Runoff
103mm/an
PET
637mm
AET
372mm
Mean slope
8,7°
Water table
214cm
Forest
85%
Crops
2%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)