HydroBASINS lev08 watershed · #1081583390
Bassin de Riet
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 : Gibeon, Mariental Urban
Sub-basin area
396,1km²
Upstream area
396,1km²
Discharge
0,09m³/s
Mean elev.
1 237m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 393.9 km²99.7% of basin
- 1.3 km²0.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
18 distinct species · 19 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°
19,9°C
Annual rain
195mm
Moisture idx (CMI)
-0,89
Runoff
8mm/an
PET
1 784mm
AET
162mm
Mean slope
1,1°
Water table
339cm
Forest
0%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)