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Unusual Oscillations in Earth's Magnetic Field

Unusual Oscillations in Earth's Magnetic Field

A solar wind stream has hit just south of the Earth grazing our magnetic field.  This contact is producing an unusual phenomena to happen.  Around the poles the earth is ringing like a bell.

Today's event is unlike the "cacophany of a normal storm, this morning's event was a sweet pure tone".

Researchers call these pure ultra-low frequency oscillations "pulsations continuous" (Pc). Pc waves have an energizing influence on particles in Earth's inner magnetosphere because they resonate with the natural motion of particles around the geomagnetic field. This, in turn, can supercharge the aurora borealis.

"The auroras are going crazy!" reports Chad Blakley of Lights over Lapland, who roared out on his snowmobile to photograph the display.

Rob Stammes recorded the phenomenon from his magnetic observatory in Lofoton, Norway.

"This morning, the magnetic field around our observatory (as measured by ground currents) was swinging back an forth with a 100 second period," says Stammes. "This very stable oscillation went on for more than an hour."

 

Source:

spaceweather.com

SH staff

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