HydroBASINS lev08 watershed · #1080625590
Bassin · #1080625590
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 across 2 countries : Ménaka, Ouallam
Sub-basin area
838,2km²
Upstream area
838,3km²
Discharge
0,33m³/s
Mean elev.
287m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- OuallamTillabéry · Niger768.6 km²92.0% of basin
- 66.6 km²8.0% of basin
1 intersecting protected areas
Ansongo Giraffe Reserve
IUCN IVPartial Wildlife Reserve
65.54 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
0 distinct species · 0 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
29,3°C
Annual rain
245mm
Moisture idx (CMI)
-0,89
Runoff
14mm/an
PET
2 128mm
AET
203mm
Mean slope
0,4°
Water table
172cm
Forest
0%
Crops
0%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)