Kalu (Sri Lanka)
| Kalu Ganga | ||
 The Kalu in Ratnapura |
||
| Data | ||
| location | In the southwest of Sri Lanka | |
| River system | Kalu | |
| origin | Wetlands in the central highlands at Sri Pada | |
| muzzle | At Kalutara in the Lakkadive Sea (Indian Ocean) Coordinates: 6 ° 34 '19 " N , 79 ° 57' 35" E 6 ° 34 '19 " N , 79 ° 57' 35" E |
|
| Mouth height |
0 m
|
|
| length | 129 km | |
| Catchment area | 2766 km² | |
| Left tributaries | Kukule Ganga | |
| Right tributaries | Kuru Ganga; Mapalana Oya; Council Ganga | |
| Medium-sized cities | Ratnapura , Kalutara | |
The Kalu is a river in the southwest of Sri Lanka .
course
It flows through the districts of Ratnapura and Kalutara . Its source is in the wetlands of the central highlands on the Sri Pada . It flows into the Indian Ocean near the city of Kalutara .
Hydrometry
The river is heavily influenced by the southwest monsoon . When the moist warm air is pushed up to the Central Highlands, the clouds rain down and sometimes cause devastating floods. Particularly in June, heavy rain increases the amount of runoff that is usual during the dry season tenfold. The mean annual runoff is around eight cubic kilometers.
ecology
The effects of the floods are exacerbated by the low gradient in the lower two thirds of the river and by human intervention. This includes deforestation and the associated increasing erosion, soil sealing and building that is not suitable for flooding. The river is heavily polluted by extensive agriculture, sand mining in the river area and the inadequate treatment technology in Sri Lanka.
Individual evidence
- ↑ Development of a Flood Forecasting Model For Kalu River and Kelani River Basins in Sri Lanka using Radial Basis Function Neural Networks (PDF file; 1.23 MB)
- ↑ Urban Flood Risk Mitigation in Kalutara City, Sri Lanka (PDF file; 11.20 MB)
- ↑ Comparison Study of existing flood management system in Japan and Sri Lanka (PDF file; 4.16 MB)
- ↑ IAHS Decade of Predictions in Ungaged Basins (PUB) (PDF file; 1.84 MB)
- ↑ 1 • The most challenging environmental issue of the 21st Century - IPS ( Memento of the original from February 23, 2016 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF file; 4.95 MB)
