Ontologia

HydroBASINS lev08 watershed · #1080610850

Bassin du Niger

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 1 administrative regions : Ansongo

Pfafstetter: 14275051

Sub-basin area

185,1km²

Upstream area

532 804,4km²

Discharge

793,86m³/s

Mean elev.

263m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger823 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

  • Ansongo
    Gao · Mali
    184.4 km²
    100.0% of basin

1 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

9 distinct species · 12 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 obs · 1 cellules
Obs. / cellule
≥ 12
12–11
12–11
12–11
< 12

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Hydroclimate (BasinATLAS lev08)

Mean T°

28,9°C

Annual rain

272mm

Moisture idx (CMI)

-0,87

Runoff

45mm/an

PET

2 075mm

AET

227mm

Mean slope

0,5°

Water table

150cm

Forest

0%

Crops

8%

Urban

1%

Protected

65%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)