HydroBASINS lev08 watershed · #1080044560
Bassin de Dewambah
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 : Afar Zone 1, Afar Zone 3, Siti
Sub-basin area
3 183,5km²
Upstream area
3 183,6km²
Discharge
5,64m³/s
Mean elev.
633m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 1569.4 km²49.5% of basin
- 1169.1 km²36.9% of basin
- 432.3 km²13.6% of basin
2 intersecting protected areas
Gewane
IUCN IVWildlife Reserve
514.87 km² overlap
Yangudi Rassa
IUCN IINational Park
325.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
26 distinct species · 48 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
26,3°C
Annual rain
368mm
Moisture idx (CMI)
-0,81
Runoff
51mm/an
PET
1 927mm
AET
309mm
Mean slope
3,5°
Water table
569cm
Forest
0%
Crops
9%
Urban
0%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)