Ontologia

HydroBASINS lev08 watershed · #1080617880

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: 14275030

Sub-basin area

823,3km²

Upstream area

535 896,8km²

Discharge

794,68m³/s

Mean elev.

263m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger1595 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

  • Ansongo
    Gao · Mali
    820.4 km²
    100.0% of basin

1 intersecting protected areas

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

Species present

13 distinct species · 34 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

34 obs · 6 cellules
Obs. / cellule
≥ 11
11–10
9–10
8–8
< 8

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

289mm

Moisture idx (CMI)

-0,86

Runoff

44mm/an

PET

2 087mm

AET

241mm

Mean slope

0,4°

Water table

204cm

Forest

0%

Crops

11%

Urban

0%

Protected

63%

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