Correlation Between Speeds of CMEs and the Intensity of Geomagnetic Storms |
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Vasyl Yurchyshyn Submitted: 2003-04-02 16:10
We studied the relationship between the projection speed of CMEs, evaluated from SOHO/LASCO images, and the hourly averaged magnitude of the B_z component of the magnetic field in an interplanetary ejecta, as measured by the ACE magnetometer in the GSM coordinate system. For CMEs,
that originate at the central part of the solar disk, we found that the intensity of B_z is a function of the speed of the CME. We also present data which support earlier conclusions about the correlation of B_z and
the Dst index. A possible application of the results to space weather forecasting is discussed.
Authors: Vasyl Yurchyshyn,
Haimin Wang,
Valentyna Abramenko
Projects: Soho-LASCO
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Publication Status: Space Weather (accepted)
Last Modified: 2004-10-13 09:41
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