Varahanadhi Basin
The Varahanadhi basin is one of the 17 major river basins and is located in the Villupuram, Thiruvannamalai, Kancheepuram and Cuddalore districts of Tamil Nadu and Pondicherry state of union territory. The total area of the basin is 4498.5 sq.km. The Varahanadhi basin is surrounded by Bay of Bengal in the east. Palar basin in the north and Ponnaiyar basin in the south and west. The basin is situated between north latitude 11° 50’ 00” to 12° 28’ 00” and east longitude 79° 08’ 00” to 80° 10’ 00”.
Varahanadhi 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) |
|
Varahanadhi |
2466.39 |
|
Ongur |
1274.73 |
|
Nallavur |
788.79 |
 |
|---|
|
|
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)