Nambiyar Basin

The Nambiyar basin falls in Tirunelveli, Thoothukudi and Kanyakumari districts. There are three rivers in this basin. The Karamaniyar is in the northern part of the basin and Hanumanadhi river is in the southern part of the basin and the Nambiyar river is in between these two rivers. Tamiraparani basin on north and Kodaiyar basin on south and the Gulf of Mannar on the east surround this basin. It lies between the following co-ordinates. North[1]Latitudes 08° 08’00” - 08° 33’ 00” and East - Longitude 77° 28’00” - 78° 15’ 00”

 

The Nambiyar Basin consists of 3 Sub-Basins and their areal extent are as follows

 

Name of the Sub-basins

Total area of the Sub-basin (km2)

Nambiyar

677.32

Karumeniyar

852.69

Hanumanadhi

470.74

 



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)