Evidence of Deterministic Chaos in the Pulse of Storm Rainfall

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  • 1 Department of Civil and Environmental Engineering and Iowa Institute of Hydraulic Research, The University of Iowa, Iowa City, Iowa
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Abstract

Rainfall data obtained by a highly sensitive raingage have been analyzed for the presence of strange attractors. Analysis of three storms that occurred in Cambridge, Massachusetts revealed, for each storm, the presence of a low-dimensional strange attractor with correlation dimension that was less than 4. The datasets consist of the discrete time series of the interarrival times of one-hundredth of a millimeter rainfall amounts. In all cases, the number of data points in the datasets was at least 3300, which makes the evidence of determinism in storm rainfall strong.

Abstract

Rainfall data obtained by a highly sensitive raingage have been analyzed for the presence of strange attractors. Analysis of three storms that occurred in Cambridge, Massachusetts revealed, for each storm, the presence of a low-dimensional strange attractor with correlation dimension that was less than 4. The datasets consist of the discrete time series of the interarrival times of one-hundredth of a millimeter rainfall amounts. In all cases, the number of data points in the datasets was at least 3300, which makes the evidence of determinism in storm rainfall strong.

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