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Information theory; Radiation belts; Solar dynamo; Mutual information; Conditional mutual information; Transfer entropy; Solar cycle; Sunspot number; Solar wind drivers; Geosynchronous orbit electron flux
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Full-Text Articles in Instrumentation
Applications Of Information Theory In Solar And Space Physics, Jay R. Johnson, Simon Wing
Applications Of Information Theory In Solar And Space Physics, Jay R. Johnson, Simon Wing
Faculty Publications
Characterizing and modeling processes at the sun and space plasma in our solar system are difficult because the underlying physics is often complex, nonlinear, and not well understood. The drivers of a system are often nonlinearly correlated with one another, which makes it a challenge to understand the relative effects caused by each driver. However, entropy-based information theory can be a valuable tool that can be used to determine the information flow among various parameters, causalities, untangle the drivers, and provide observational constraints that can help guide the development of the theories and physics-based models. We review two examples of …