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Dam Volume Prediction Model Development Using ML Algorithms

Reliable reservoir volume estimates are crucial for water resource management, especially in arid and semi-arid regions. The present study investigates applying three machine learning regression techniques - Gradient Boosting, Random Forest, and ElasticNet to predict key dam performance characteristics of the Loskop Dam in South Africa. The models were trained and validated on a dataset comprising geospatial elevation measurements paired with corresponding reservoir supply capacity values. The best-performing approach was a threshold-based blended model that combined random forest for higher volumes with Ridge regression for lower volumes. This model achieved an RMSE of 4.88 MCM and an R2 of 0.99. These findings highlight the ability of ensemble learning techniques to capture complex relationships in dam datasets and underscore their practical utility for reliable dam performance modelling in real-world water resource management scenarios.

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