HydroBASINS lev08 watershed · #2080550930
Bassin de Una / Уна
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 : Banja Luka
Sub-basin area
33,8km²
Upstream area
2 889,1km²
Discharge
43,71m³/s
Mean elev.
227m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 3 basins
- Bassin de Ponor377 km²
- Bassin de Japra335 km²
- Bassin de Sana262 km²
1 dept-equivalent regions (GADM L2)
- Banja Luka33.9 km²100.0% of basin
1 intersecting protected areas
Una
IUCN VNature park V.3 (RS law)
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
110 distinct species · 170 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°
10,6°C
Annual rain
1 010mm
Moisture idx (CMI)
0,08
Runoff
447mm/an
PET
932mm
AET
726mm
Mean slope
8,7°
Water table
456cm
Forest
68%
Crops
5%
Urban
12%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)