HydroBASINS lev08 watershed · #1080857940
Bassin de Arap
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 across 2 countries : Barh Azoum, Haraze Mangueigne, Lac Iro, Ndélé
Sub-basin area
2 072,4km²
Upstream area
8 009,9km²
Discharge
38,36m³/s
Mean elev.
401m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080813800497 km²
- Bassin · #1080813810475 km²
4 dept-equivalent regions (GADM L2)
- 1359.8 km²65.9% of basin
- 529.1 km²25.6% of basin
- 174.8 km²8.5% of basin
- 0.2 km²0.0% of basin
1 intersecting protected areas
Aouk
IUCN Not ReportedHunting reserve
2063.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 4 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°
27,3°C
Annual rain
1 005mm
Moisture idx (CMI)
-0,52
Runoff
70mm/an
PET
2 084mm
AET
849mm
Mean slope
0,0°
Water table
6cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)