HydroBASINS lev08 watershed · #5080196330
Bassin de Ajai River
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 2 administrative regions : Middle Ramu, Usino-Bundi
Sub-basin area
187,7km²
Upstream area
187,9km²
Discharge
12,37m³/s
Mean elev.
1 174m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Middle RamuMadang · Papua New Guinea175.9 km²94.1% of basin
- Usino-BundiMadang · Papua New Guinea11.0 km²5.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
16 distinct species · 30 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°
21,4°C
Annual rain
3 415mm
Moisture idx (CMI)
0,52
Runoff
2 050mm/an
PET
1 602mm
AET
1 595mm
Mean slope
18,8°
Water table
455cm
Forest
67%
Crops
3%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)