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The solar wind speed and magnetic fields inside the Earth's orbit on ecliptic plane are drawn. The sun is located at the center of the image, and black circle stands for the Earth. Color contours show the solar wind speed. Black (White) ticks show magnetic fields whose direction is away from (toward) the sun.
Time-series of the solar wind velocity and the sector angle of magnetic fields at the Earth are drawn on the plot. The sector angle is measured from x-axis of GSE-coordinate, which is a direction from the Earth to the Sun.
Acknowledgment:
SOHO/MDI synoptic maps are generated by the Solar Observatories Group at
Stanford University (Scherrer et al. 1995). SOHO is a project of
international cooperation between ESA and NASA.
Reference:Scherrer, P. H., Bogart, R. S., Bush, R. I., et al. 1995, Solar Physics,
162, 129.
