HydroBASINS lev08 watershed · #1080683100
Bassin de Mayél Samou
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 : Goudiry, Tambacounda
Sub-basin area
712,3km²
Upstream area
2 009,5km²
Discharge
3,21m³/s
Mean elev.
74m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080677330254 km²
- Bassin · #1080677340209 km²
2 dept-equivalent regions (GADM L2)
- TambacoundaTambacounda · Senegal448.6 km²63.2% of basin
- 261.0 km²36.8% of basin
3 intersecting protected areas
National Park
90.06 km² overlap
Niokolo-Koba National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
85.55 km² overlap
Parc national du Niokolo-Koba
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
85.55 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 distinct species · 11 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°
28,4°C
Annual rain
828mm
Moisture idx (CMI)
-0,59
Runoff
56mm/an
PET
2 017mm
AET
699mm
Mean slope
0,8°
Water table
108cm
Forest
4%
Crops
2%
Urban
0%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)