Ontologia

HydroBASINS lev08 watershed · #1080699450

Bassin de la Sirba

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 3 administrative regions : Gnagna, Komandjoari, Yagha

Pfafstetter: 14272215

Sub-basin area

1 247,1km²

Upstream area

10 335,4km²

Discharge

4,08m³/s

Mean elev.

270m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

3 dept-equivalent regions (GADM L2)

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

Species present

81 distinct species · 401 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

401 obs · 15 cellules
Obs. / cellule
≥ 79
57–78
43–56
22–42
< 22

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°

28,4°C

Annual rain

588mm

Moisture idx (CMI)

-0,72

Runoff

16mm/an

PET

2 078mm

AET

495mm

Mean slope

0,3°

Water table

123cm

Forest

0%

Crops

20%

Urban

0%

Protected

0%

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