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Why in the News?
Recently, the Rule Curve came into effect between June 10 and November 30, 2022, during which the Mullaperiyar dam gets maximum inflows from the South West Monsoon.
Key Points:
About Rule Curve
- Rule Curve is a tabulation which specifies the quantum of storage of water or empty space to be maintained in a reservoir during different times of a year, based on the rainfall data for 35 years.
- It helps in decision-making for officials in charge of the dam, for the smooth operation of shutters, especially for the moderation of flood, during monsoon times.
About Mullaperiyar Dam:
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About Periyar River:
- Periyar River originates from the Sivagiri hills of Western Ghats in Tamil Nadu and flows through the Periyar National Park.
- The Periyar River is the longest river in Kerala. It is also known as the ‘Lifeline of Kerala’ as it is one of the few perennial rivers in the state.
