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

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°

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)