HydroBASINS lev08 watershed · #3080020330
Bassin de Ongandja
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 : Ayano-Mayskiy rayon
Sub-basin area
269,3km²
Upstream area
269,3km²
Discharge
5,09m³/s
Mean elev.
297m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Ayano-Mayskiy rayonKhabarovsk · Russia257.3 km²95.1% of basin
1 intersecting protected areas
Ostrov Nansikan
IUCN IIINatural Monument
0.18 km² overlap
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°
-5,7°C
Annual rain
658mm
Moisture idx (CMI)
0,41
Runoff
577mm/an
PET
388mm
AET
375mm
Mean slope
16,5°
Water table
344cm
Forest
34%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)