Ontologia

HydroBASINS lev08 watershed · #1080566730

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 2 administrative regions : Bourem, Gao

Pfafstetter: 14277120

Sub-basin area

915km²

Upstream area

915,2km²

Discharge

0,9m³/s

Mean elev.

297m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger2027 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

  • Gao
    Gao · Mali
    665.6 km²
    73.0% of basin
  • Bourem
    Gao · Mali
    246.3 km²
    27.0% of basin

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

Species present

32 distinct species · 44 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

44 obs · 4 cellules
Obs. / cellule
≥ 24
24–23
18–23
18–17
< 18

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°

29,5°C

Annual rain

180mm

Moisture idx (CMI)

-0,92

Runoff

12mm/an

PET

2 147mm

AET

148mm

Mean slope

0,6°

Water table

259cm

Forest

0%

Crops

0%

Urban

0%

Protected

0%

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