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Using Correlation Plots for Dam Safety Analysis

Preparing correlation plots – which involve plotting two or more variables against each other rather than against time – is a useful way to analyze data collected by dam safety monitoring devices. Correlation plots are particularly useful for monitoring dams where reservoir water levels vary significantly.

By Eugene B. Gall

Proper instrumentation plays an important role in monitoring the safety of a dam. Equally important is proper interpretation of the data collected by the instrumentation. The two primary ways to plot instrumentation data with regard to a specific stimulus (such as reservoir level) are:

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