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Passing CME- Geomagnetic Response

Posted: Sat Jul 22, 2017 3:34 pm
by Carbon60
Last weekend, magnetised plasma from a CME brushed past Earth's magnetic field creating geomagnetic fluctuations detectable on magnetometers at ground level. The resulting solar storm produced beautiful aurorae and significant reductions in Earthbound cosmic rays, as reported on Spaceweather.com

Here are my magnetometer data recorded over a 10 day period leading up to and throughout the geomagnetic storm. The effect of the impact is plain to see, as the 'rate of change' data show.
20170711_20_CME.jpg
20170711_20_CME.jpg (146.1 KiB) Viewed 3332 times
More activity to come as Earth is entering a new solar wind stream originating at a large polar coronal hole.

Thanks for looking.

Stu.

Re: Passing CME- Geomagnetic Response

Posted: Sat Jul 22, 2017 11:55 pm
by highfnum
lovely as always

a real sharp change and drop

Re: Passing CME- Geomagnetic Response

Posted: Sun Jul 23, 2017 6:28 pm
by Montana
That is a big blast! pity it happened during daylight hours ;) I got the alerts around 4pm.

:bow :hamster:

Alexandra
(PS I hope you are feeling better now)

Re: Passing CME- Geomagnetic Response

Posted: Mon Jul 24, 2017 5:53 am
by Carbon60
Many thanks, John and Alexandra.

(A lot better now, thanks, Alexandra).

Stu.

Re: Passing CME- Geomagnetic Response

Posted: Mon Jul 24, 2017 9:23 am
by Derek Klepp
Thanks Stu every time I view these I wish I lived at high latitudes.

Re: Passing CME- Geomagnetic Response

Posted: Sat Aug 05, 2017 2:57 pm
by marktownley
Catching the breeze, I like it!