Geomagnetism - 14 of 13
Geomagnetism FAQs - 13 Found
What are the hazards of magnetic storms?
Our technology-based infrastructure can be adversely affected by rapid magnetic-field variations. This is especially true during “magnetic storms."
- Because the ionosphere is heated and distorted during storms, long-range radio communication that relies on sub-ionospheric reflection can be difficult or impossible and global-positioning system (GPS) communications can be degraded.
- Ionospheric expansion can increase satellite drag and make their orbits difficult to control.
- During magnetic storms, satellite electronics can be damaged through the build up and discharge of static-electric charges. Astronauts and high-altitude pilots can be subjected to increased levels of radiation.
- Even though rapid magnetic-field variations are generated by currents in space, very real effects can result down here on the Earth’s surface. That includes voltage surges in power grids that cause blackouts.