HydroBASINS lev08 watershed · #1080620570
Bassin de Béli
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 3 administrative regions across 2 countries : Ansongo, Gourma-Rharous, Oudalan
Sub-basin area
198,3km²
Upstream area
3 597,2km²
Discharge
4,95m³/s
Mean elev.
262m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080617570774 km²
- Bassin · #1080617580337 km²
3 dept-equivalent regions (GADM L2)
- 166.4 km²84.2% of basin
- AnsongoGao · Mali19.6 km²9.9% of basin
- 11.6 km²5.9% of basin
1 intersecting protected areas
Sahel
IUCN IVSylvo-pastoral Reserve and Partial Wildlife Reserve
13.50 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°
29,5°C
Annual rain
309mm
Moisture idx (CMI)
-0,86
Runoff
49mm/an
PET
2 135mm
AET
258mm
Mean slope
0,1°
Water table
85cm
Forest
0%
Crops
8%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)