CEDAR: A Comprehensive Empirical Model for Global Convection

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Information on the convection of magnetospheric plasma is for understanding many atmospheric processes. Although extensive measurements have been made with many instruments, there remains considerable disagreement about the nature of the global convection. The purpose of this empirical model. We will generate a database that has as its core all the convection measurements made by the radars located at Millstone Hill, Goose Bay, and Sondre Stromfjord. We will also assemble a database consisting of the values od the indices that may parameterize the state of the global convection. Several approaches to the mathematical reduction of the data to models will be explored. An important product will be estimates of the variance associated with the modeling. By binning the observational data and studying the variances, the characteristic states of the global convection will be determined and the indices of greatest parameterizing value identified.