| For example, at each location on the globe, the geomagnetic field lines intersect the Earth's surface at a specific angle of inclination. |
| It records a mixed polarity pattern that corresponds to the mixed nature of the Early Cambrian geomagnetic field. |
| These features are the dominant sources of disturbances in space weather that lead to geomagnetic storms. |
| During geomagnetic storms, these variations can be large enough to keep portions of a pipeline in the unprotected regime for some time. |
| It is always a precursor to increased geomagnetic activity, most often followed within 3 to 8 hours by a Minor to Major geomagnetic storm. |
| A geomagnetic storm begins with an enormous burst of electrically charged gas, or plasma, from the sun. |
