These pages provide access to a suite of global MHD simulations. More details on the MHD approach can be found in the MAS User Guide. For simplicity, our simulations are all based on a specific Carrington rotation. That is, we use a photospheric magnetic field synoptic map built up from a sequence of observations centered at central meridian over a 27 day period. This map forms the fundamental boundary condition at the surface of the Sun, and is supplemented with auxiliary boundary conditions that approximate the plasma density and temperature.
These pages provide access to Earth trajectory data, time series at specific time periods and EUV & X-ray emission images. They provide basic comparisons between the model results and data as well as visualizations that attempt to merge data and model results in ways that enhance the interpretation of the data. In addition, we hope that these comparisons provide a simple validation of the model results. At the least, when the comparisons between data and observations are poor, care should be taken when interpreting observations using the model results.
The Tools section also contains a suite of general visualization and analysis tools. They are designed to allow users to interact with the MHD simulation results in a number of ways. Currently, we support 1D plots, 2D plots, coronal hole maps in longitude - latitude and spherical view, isosurfaces of the heliospheric current sheet, and polarization brightness in solar corona. In addition, the Summary Plots page displays an image gallery summarizing the salient parameters of a particular simulation. Finally, the Data Access page provides access to download the simulation data along with tools to visualize it.
If you have any suggestions, please feel free to contact us.