HydroBASINS lev08 watershed · #4080618680
Bassin de 出羽川
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 4 administrative regions : Kawamoto, Kitahiroshima, Miyoshi, Ōnan
Sub-basin area
142,7km²
Upstream area
142,7km²
Discharge
4,18m³/s
Mean elev.
429m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 141.6 km²99.2% of basin
- 1.0 km²0.7% of basin
- KitahiroshimaHiroshima · Japan0.0 km²0.0% of basin
- MiyoshiHiroshima · Japan0.0 km²0.0% of basin
5 intersecting protected areas
Go gawa suikei
IUCN VPrefectural Natural Park
2.32 km² overlap
Mizuho seishonen ryokomura
IUCN IVPrefectural Wildlife Protection Area
2.03 km² overlap
Ikoinomura shimane
IUCN IVPrefectural Wildlife Protection Area
0.51 km² overlap
Futatsuyama
IUCN IVPrefectural Wildlife Protection Area
0.49 km² overlap
Inubushiyama
IUCN IVPrefectural Wildlife Protection Area
0.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
38 distinct species · 58 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°
11,9°C
Annual rain
1 839mm
Moisture idx (CMI)
0,50
Runoff
923mm/an
PET
919mm
AET
917mm
Mean slope
11,5°
Water table
435cm
Forest
93%
Crops
3%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)