Tamirabarani Basin

The Tamiraparani River Basin is one of the 17 river basins and having 7 sub basins and covers the district of Tirunelveli and Thoothukudi.Tamiraparani River Basin lies between geographic co-ordinates N. lat.8° 26’ 45” to 9° 12’ 00” and E. long 77° 09’ 00” to 78° 08’30”. The entire basin covers an area of about 5717.08 sq. km and lies in the revenue districts of Tirunelveli, Thoothukudi taluk of Thoothukudi District in southern Tamil Nadu.

 

Tamiraparani basin consists of 7 Sub-Basins and their areal extent are as follows

 

Name of the Sub-basins

Total area of the Sub-basin (km2)

Chittar

1662.50

Lower Tamiraparani

1891.64

Upper Tamiraparani

514.33

Gadananadhi

446.83

Manimuttar

191.54

Pachaiyar

288.66

Uppodai

721.70

 



Hydrological Variables

Base Period (1985-2014)                     Near Century (2021-2050)

PCP - Precipitation; SURQ - Surface Runoff; ET - Evapotranspiration - All units are in mm

Climate Risk

Base Period (1985-2014)                     Near Century (2021-2050)