| Station: | Tirukoilur Anicut | Continent: | Asia | ||
| River: | Ponnaiyar | Major Basin : | Bay of Bengal | ||
| Country: | India | Discharge into : | Indian Ocean | ||
| Observation Period: | 1976 - 1979 | Total Months: | 48 | ||
| Latitude (dec deg): | 12.98 N | Area (km2): | 12888 | ||
| Longitude (dec deg): | 79.26 E | Elevation (m): | 83 | ||
| Annual Discharge: (m3/s): | 20.4 | (km3/yr): | 0.6 | ||
| Annual Runoff: (l/s/km2): | 1.6 | (mm/yr): | 49.9 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 6.5 | 20.4 | 6.0 | 3.0 | 1.8 | 1.0 | 1.0 | 2.2 | 3.8 | 15.2 | 157.2 | 29.2 |
| km3/mo | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 0.1 |
| mm/mo | 1.4 | 3.8 | 1.2 | 0.6 | 0.4 | 0.2 | 0.2 | 0.5 | 0.8 | 3.2 | 31.6 | 6.1 |
| l/s/km2 | 0.5 | 1.6 | 0.5 | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.3 | 1.2 | 12.2 | 2.3 |
