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A geomagnetic storm, also known as a magnetic storm, is a temporary disturbance of the Earth's magnetosphere caused by a solar wind shock wave. The disturbance that drives the magnetic storm may be a solar coronal mass ejection (CME) or (much less severely) a corotating interaction region (CIR), a high-speed stream of solar wind originating ...
Geomagnetic storms can also add energy to currents in Earth's magnetic field that can increase distribution of density in the upper atmosphere and cause extra drag on low-orbiting satellites.
GICs can affect the normal operation of long electrical conductor systems such as electric transmission grids and buried pipelines. The geomagnetic disturbances which induce GICs include geomagnetic storms and substorms where the most severe disturbances occur at high geomagnetic latitudes.
The NOAA G-scale describes the significance of effects of a geomagnetic storm to the public and those affected by the space environment. It is directly derived from the K p-scale, where G1 is the weakest storm classification (corresponding to a K p value of 5) and G5 is the strongest (corresponding to a K p value of 9). [7]
A geomagnetic storm is heading to Earth, with the possibility to disrupt GPS and communications. It could also bring the northern lights to Northern California, much farther south than is typical.
Geomagnetic storms can have an impact on infrastructure in near-Earth orbit and on Earth’s surface, potentially disrupting communications, the electric power grid, navigation, radio and ...
Such observatories can measure and forecast magnetic conditions such as magnetic storms that sometimes affect communications, electric power, and other human activities. The International Real-time Magnetic Observatory Network , with over 100 interlinked geomagnetic observatories around the world, has been recording the Earth's magnetic field ...
Programming note: Tune in to CNN NewsNight: Solar Storm, hosted by Abby Phillip and Bill Weir, tonight from 10 p.m. to 12 a.m. ET. For the latest on the massive solar storm, head over to CNN’s ...