HydroBASINS lev08 watershed · #4080771210
Bassin de Siyanban Khola
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 across 2 countries : Karnali, Ngari, Seti
Sub-basin area
413,5km²
Upstream area
413,5km²
Discharge
16,25m³/s
Mean elev.
4 705m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 411.1 km²99.5% of basin
- 1.1 km²0.3% of basin
- 0.8 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 2 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°
-0,2°C
Annual rain
843mm
Moisture idx (CMI)
0,23
Runoff
1 158mm/an
PET
651mm
AET
590mm
Mean slope
31,7°
Water table
947cm
Forest
16%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)