Predicting the high-speed-stream caused Bs events using the Current Sheet Source Surface Model

Abstract:

It is well known that geomagnetic storm is generated by the "Bs event",
i.e., the long-duration strong southward HMF component in the geocentric
coordinate system. One kind of Bs events is formed by the ambient
long-duration weak southward HMF component compressed by the high-speed
solar wind streams. The Current Sheet Source Surface (CSSS) model can be
used to predict when and where the high-speed stream occurs and, also,
to predict when the ambient long-duration weak Bs component occurs based
on the location of the Earth. This work is an investigation of the
prediction probability of this kind of Bs event.