HydroBASINS lev08 watershed · #4080029440
Bassin de Thamirabharani
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 : Thoothukkudi, Tirunelveli
Sub-basin area
1 053km²
Upstream area
5 625,7km²
Discharge
26,99m³/s
Mean elev.
32m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Thamirabharani2060 km²
- Bassin de Chittar River136 km²
2 dept-equivalent regions (GADM L2)
- 835.2 km²79.6% of basin
- Tirunelveli207.7 km²19.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
404 distinct species · 28 192 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Thamirabharani : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 3 types (connectance 10.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
29,0°C
Annual rain
682mm
Moisture idx (CMI)
-0,58
Runoff
184mm/an
PET
1 636mm
AET
575mm
Mean slope
0,4°
Water table
58cm
Forest
5%
Crops
51%
Urban
17%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)