Identification of Driver Gas-Associated Bz Events and Prediction of Their Orientation
STANFORD UNIV CA CENTER FOR SPACE SCIENCE AND ASTROPHYSICS
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An approach for identifying a driver gas-associated Bz event and its solar source is introduced. Seven newly identified events are used to further test the model developed by Hoeksema and Zhao 1991 for prediction of the magnetic orientation of some driver gas-associated Bz events from photospheric field observations. Comparison of the model predictions with observations confirms that the model may be appropriate only for those driver gas-associated Bz events which have magnetic structures lacking large internal field rotation and are associated with active region-CMEs.