HydroBASINS lev08 watershed · #3080576500
Bassin de Олёкма
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 : Tungiro-Olekminskiy rayon
Sub-basin area
90,5km²
Upstream area
10 123,7km²
Discharge
80,53m³/s
Mean elev.
700m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Бармакит1098 km²
- Bassin de Олёкма925 km²
1 dept-equivalent regions (GADM L2)
- 90.9 km²100.0% of basin
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
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
-6,4°C
Annual rain
409mm
Moisture idx (CMI)
-0,35
Runoff
295mm/an
PET
628mm
AET
362mm
Mean slope
6,8°
Water table
218cm
Forest
99%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)