this post was submitted on 29 Nov 2023
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[–] Halcyon@discuss.tchncs.de 77 points 1 year ago (4 children)
[–] farcaster@lemmy.world 50 points 1 year ago (1 children)

This most extreme level can cause complete HF (high frequency) radio blackouts on the entire sunlit side of the Earth, lasting for a number of hours.

So, is that really it? A HF radio blackout? I can't imagine most of us would even notice if HF were disrupted. I don't know the physics involved, but if VHF/UHF were hit it would be a much bigger problem.

[–] Zron@lemmy.world 53 points 1 year ago (1 children)

The carrington event knocked out telegraphs all over the world in the 1800s.

That’s the most powerful geomagnetic storm on record. It induced so much current in the telegraph wires that they literally melted.

In the 1800s that wasn’t a huge deal. But if it happened today, billions of dollars of electrical infrastructure could be rendered useless, and stockpiles of replacements are already non existent. It would take years to recover.

But this is not that strong of a storm, so I doubt it’ll do anything but cause some pretty lights and maybe ground a few flights due to communications issues.

[–] SzethFriendOfNimi@lemmy.world 11 points 1 year ago (1 children)

And I’m sure any affected areas and satellites will be shutdown for that period to reduce any operational risk.

So less planes falling and more planes delayed.

Same for network communications as items are routed around certain areas or via some methods like fiber vs others.

[–] CheezyWeezle@lemmy.world 21 points 1 year ago (1 children)

Planes wouldn't just fall out of the sky anyways lmao. Even if planes lost communications completely they are still operational flying machines. It would just be very difficult to coordinate planes landing at that point. I don't know about the protocols, but I'm sure there exist failsafes to coordinate air traffic in the event of radio communication loss.

[–] SzethFriendOfNimi@lemmy.world 3 points 1 year ago

True and I didn’t mean to imply it. Went for the hyperbole you tend to see and did a poor job with it after all.

[–] j0hn@lemmy.world 8 points 1 year ago

I edited the post to use that URL instead, thanks!

[–] otter@lemmy.ca 2 points 1 year ago

@j0hn@j0hn@lemmy.world you can swap the link out, just edit the old one into the body so the context is there for anyone talking about it

also I think the bigger news story here is an increased chance of Auroras 🌌 Take a peek outside if you live somewhere northern and clear-skied