Ontologia

HydroBASINS lev08 watershed · #1080604550

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: 14275056

Sub-basin area

419,2km²

Upstream area

419,3km²

Discharge

1,59m³/s

Mean elev.

274m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger310 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

  • Ansongo
    Gao · Mali
    417.7 km²
    100.0% of basin

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

Species present

3 distinct species · 9 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 obs · 2 cellules
Obs. / cellule
≥ 5
5–4
5–4
5–4
< 5

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°

28,7°C

Annual rain

269mm

Moisture idx (CMI)

-0,87

Runoff

109mm/an

PET

2 063mm

AET

225mm

Mean slope

0,4°

Water table

218cm

Forest

0%

Crops

6%

Urban

0%

Protected

0%

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