Solar Wind Velocity
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Data Description:
WSA input:  The inputs to the model are derived from the Mt. Wilson Observatory Observatory solar magnetograms. The details of transforming the raw individual magnetograms into a global, synoptic characterization are given in Arge, C.N., and V.J. Pizzo, Improvement in the prediction of solar wind conditions using near-real time solar magnetic field updates, Journal of Geophysical Research, Volume 105, Issue A5, May 1, 2000, pp.10465-10480, 2002.
Description of Model:
WSA Model: The WSA model currently produces real-time predictions of the solar wind at SEC/NOAA. Currently, we are using historical predictions of this model to drive various empirical models that require only the solar wind speed as an input.

The WSA is a modular Sun-to-Earth model that permits easy replacement of individual modules by improved ones as they (and any required data streams) become available.

The four modular components of the prototype Sun-Earth model consist of simple physics-based and semi-empirical models as well as numerical MHD models that can run on workstations. An advantage of the modular architecture is that it allows for extensive experimentation and permits easy replacement of individual models by improved ones as they (and any required data streams) become available.

A recent talk given by Nick Arge at HAO gives an overview of the model. [.ppt]