Solar wind buffets Earth's magnetic field

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Carbon60
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Solar wind buffets Earth's magnetic field

Post by Carbon60 » Sat Feb 18, 2017 6:28 pm

Hi all,

A large 'gash' in the solar atmosphere is spewing solar wind Earthwards, twitching magnetometers around the globe as it buffets our protective magnetic bubble.

Here are my own data from my homebuilt magnetometer in comparison with professional data, captured over the past couple of days, as Earth passes further into the wind stream. Given the wide expanse of this coronal hole, there is likely to be further activity over the coming days. Good news if you're in a good location to view the Aurora.
20170218_Coronal Hole.jpg
20170218_Coronal Hole.jpg (132.2 KiB) Viewed 853 times
Thanks for looking.

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Anthony M
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Re: Solar wind buffets Earth's magnetic field

Post by Anthony M » Sun Feb 19, 2017 4:56 pm

Nice work, interesting observations. What are the approximately 3-hr periodic drops in the "Arbitrary Units" from? Really impressed with your Flickr images. HA mod looks great too! Can you post your magnetometer setup too? Cheers, Anthony

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Carbon60
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Re: Solar wind buffets Earth's magnetic field

Post by Carbon60 » Sun Feb 19, 2017 9:51 pm

Hi Anthony,

There are all sorts of resonances that occur within the magnetic environment when the solar wind strikes, on different timescales from seconds to hours. I believe some of these are what we're seeing in the charts. Details of the setup are shown in the tutorial section of SolarChat.

viewtopic.php?f=7&t=20437

Thanks for your comments and interest.

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Anthony M
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Re: Solar wind buffets Earth's magnetic field

Post by Anthony M » Sun Feb 19, 2017 11:47 pm

Thanks again, Stewart. I'll have to read up some more on solar magnetometry. It's interesting that you are using a heterodyne bat detector to convert the signal- I used to survey for bats as part of my previous career in wildlife biology before I started teaching science, so I happen to have a few old heterodyne bat detectors in a box somewhere. Will have to try this magnetometer project sometime. Nice work on that document, thanks for the reference! Cheers., Anthony

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Carbon60
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Re: Solar wind buffets Earth's magnetic field

Post by Carbon60 » Mon Feb 20, 2017 6:30 am

It would make a good school project; maybe team up with physics.

Provides lots of interesting data, rain or shine.

Regards

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Montana
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Re: Solar wind buffets Earth's magnetic field

Post by Montana » Mon Feb 20, 2017 10:08 am

That's almost a perfect match Stu, superb data :hamster: just need these clouds to shift out of the way :)

Alexandra

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Carbon60
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Re: Solar wind buffets Earth's magnetic field

Post by Carbon60 » Tue Feb 21, 2017 6:39 am

Thanks, Alexandra. Absolutely......need more Sun!

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Re: Solar wind buffets Earth's magnetic field

Post by highfnum » Sat Feb 25, 2017 2:48 am

excellent matching

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Re: Solar wind buffets Earth's magnetic field

Post by marktownley » Sat Feb 25, 2017 12:09 pm

Good data Stu!
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http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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