Magnetic pulsations Pc4
Taken by Rob Stammes on July 1, 2015 @
Polarlightcenter Lofoten Norway.
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Details:
This morning,july 01 2015, beautiful ULF Waves or PC4 pulsations on my Ground Current and Magnetic instruments.A rare phenomenon,
perhaps twice a year and only visible under magnetic quiet conditions during the morning hours.Period time very long,about 2 minutes.
Photographer's website:
http://polarlightcenter.com
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