Heliospheric current sheet?

[oemSpace]

Referring to heliospheric current sheet, because the Earth is located sometimes above and sometimes below the rotating current sheet, it experiences regular, periodic changes in the polarity of the IMF. These periods of alternating positive (away from the Sun) and negative (toward the Sun) polarity are known as magnetic sectors.
Source : http://pluto.space.swri.edu/IMAGE/glossary/IMF.html

If Earth is located within magnetic sector - positive polarity (away from the Sun), does positive polarity represent positive charges or other within this sector? if solar winds hit Earth within positive polarity, how to know whether North pole or south pole effects the most by this solar winds? Since North pole of Earth is (-ve charged), and South pole of Earth is (+ve charged).
 

 

 

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The solar wind also carries with it the magnetic field of the Sun. This field will have either a North or South orientation. If the solar wind has energetic bursts, contracting and expanding the magnetosphere, or if the solar wind takes a southward polarization, geomagnetic storms can be expected. The southward field causes magnetic reconnection of the dayside magnetopause, rapidly injecting magnetic and particle energy into the Earth's magnetosphere.

Source : http://en.wikipedia.org/wiki/Geomagnetic_storms


Does anyone have any suggestions on how to know whether solar wind carries with North or South magnetic field of the Sun? Will it relate to Earth's location within heliospheric current sheet?

Does anyone have any suggestions?

Thanks in advance for any suggestions

[Marcel de Bont]

I'm not an expert on the things you are mentioning here but when it comes to predicting the IMF polarity here on earth then that is not easy. There is however a model that is relatively accurate which tries to predict the polarity at earth for the next few days. It's called the Wang-Sheely-Arge model and can be found on this page if you scroll down: http://www.spaceweatherlive.com/en/auroral-activity/aurora-forecast

[oemSpace]

Thanks you very much for suggestions