HydroBASINS lev08 watershed · #4080152760
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 : Dadal, Kyrinskiy rayon
Sub-basin area
238,4km²
Upstream area
238,4km²
Discharge
0,72m³/s
Mean elev.
1 096m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 173.4 km²72.5% of basin
- 65.7 km²27.5% of basin
2 intersecting protected areas
Onon-Balj /A/
IUCN IINational Park
37.62 km² overlap
Onon-Balj /B/
IUCN IINational Park
4.78 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°
-0,8°C
Annual rain
368mm
Moisture idx (CMI)
-0,50
Runoff
97mm/an
PET
745mm
AET
328mm
Mean slope
7,5°
Water table
201cm
Forest
11%
Crops
11%
Urban
0%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)