HydroBASINS lev08 watershed · #1081584970
Bassin de Nossob
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 across 2 countries : Gemsbok, Mariental Rural
Sub-basin area
27,6km²
Upstream area
38 575,9km²
Discharge
4,65m³/s
Mean elev.
1 071m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nossob633 km²
- Bassin de Nossob11 km²
2 dept-equivalent regions (GADM L2)
- 26.3 km²95.5% of basin
- 1.2 km²4.5% of basin
1 intersecting protected areas
Gemsbok
IUCN IbNational Park
1.60 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
42 distinct species · 61 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Nossob : 7 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
20,1°C
Annual rain
225mm
Moisture idx (CMI)
-0,88
Runoff
4mm/an
PET
1 868mm
AET
187mm
Mean slope
1,1°
Water table
163cm
Forest
0%
Crops
0%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)