Climate induced variability of suspended matter and nutrient in the discharge of Kali river, central west coast of India
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The Kali River is located in the orographically enhanced precipitation regime of the SW monsoon (SWM), and is the significant river along the central west coast of India. Study of the season variability in its discharge characteristics is important to understand the influence of the SWM precipitation on estuarine and coastal processes. The seasonal discharge data of the river is obtained during 2004, which was a normal monsoon year. We find high nutrient load in the rivers, specially in the estuarine section, during SWM as well the non-monsoon season. High TSM and nutrient load in the river may be attributed to the recent deforestation associated with an unplanned expansion of Karwar township and setting up of a mega naval base. An enhanced anthropogenic load of fertilizers, insecticide and sewage due to neo urbanization is likely, and may enhance eutrophication in the estuarine and coastal regions.
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