Did you know? Here’s a space weather and radio propagation educational tidbit – from http://SunSpotWatch.com – at 14:00 UTC on 2017-02-28:
What is a “geomagnetic storm” (sometimes called a, “solar storm”)? A geomagnetic storm is a disturbance of Earth’s magnetosphere caused by disturbances in the interplanetary medium between the Sun and Earth. A geomagnetic storm is a major component of space weather; a geomagnetic storm provides “input” for many other components of space weather.
A geomagnetic storm is caused by solar wind shock waves and/or the passing of a cloud of interplanetary material riding on the solar wind, containing magnetic fields (the “Interplanetary Magnetic Field”, or “IMF”). A geomagnetic storm can occur when a shock wave (from an eruptive event on the Sun), riding the solar wind and IMF, interacts with the Earth’s magnetic field.
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