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A “perfect coronal mass ejection” could be a nightmare

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Re: A “perfect coronal mass ejection” could be a nightmare

#3
Given all the ICS security threats of late I wonder has any government gamed out how to take advantage of an impending CME. For example preventing a shutdown of critical CME vulnerable equipment to cause maximum damage. Given the CME is the thing doing the damage it would be a hard one politically to push back on if tracks were covered by the actor.

Re: A “perfect coronal mass ejection” could be a nightmare

#4
post #2

It would be interesting to model the way different societies would deal with such an event. Some presumably would have a run on toilet paper and other essentials. Other societies might ration resources on a need basis.

This is a preppers fantasy, not reality. Engines and generators would not suddenly stop working. Any electronics inside even a lightly shielded building (or even just a grounded metal case) would survive. It would suck for a short time - but only a short time.

Re: A “perfect coronal mass ejection” could be a nightmare

#5
I am not an astrophysicist, but I don't see any reason to doubt the study's conclusions. But isn't the more pressing question the probability of such a CME hitting the Earth? The sun is not small, and CMEs could be ejected away from it in any direction, I would think relatively few of them hit any of the planets?

Re: A “perfect coronal mass ejection” could be a nightmare

#6

I am not an astrophysicist, but I don't see any reason to doubt the study's conclusions. But isn't the more pressing question the probability of such a CME hitting the Earth? The sun is not small, and CMEs could be ejected away from it in any direction, I would think relatively few of them hit any of the planets?

Kurzgesagt has a nice and objective summary on the topic. If I remember correctly, 50% chance of a big one hitting us over the next 50 years (or by 2050, can't remember exactly): https://youtu.be/oHHSSJDJ4oo

Re: A “perfect coronal mass ejection” could be a nightmare

#7
post #2

It would be interesting to model the way different societies would deal with such an event. Some presumably would have a run on toilet paper and other essentials. Other societies might ration resources on a need basis.

This is a preppers fantasy, not reality. Engines and generators would not suddenly stop working. Any electronics inside even a lightly shielded building (or even just a grounded metal case) would survive. It would suck for a short time - but only a short time.

How about the effect on all the satellites? I think th Carrington event size one would be catastrophic in the modern day. Imagine large urban areas going losing power for days or weeks. No electricity and no running water. Pretty scary stuff.

Re: A “perfect coronal mass ejection” could be a nightmare

#8
post #7

Earlier quoted context omitted.

This is a preppers fantasy, not reality. Engines and generators would not suddenly stop working. Any electronics inside even a lightly shielded building (or even just a grounded metal case) would survive. It would suck for a short time - but only a short time.

How about the effect on all the satellites? I think th Carrington event size one would be catastrophic in the modern day. Imagine large urban areas going losing power for days or weeks. No electricity and no running water. Pretty scary stuff.

The loss of satellites does not imply power outages and it especially does not imply no running water.

I'm not saying it wouldn't be disruptive, but people seem to have a fetish for disaster. Society is resilient, and life would return to near-normal within weeks, if not days, I predict.

Re: A “perfect coronal mass ejection” could be a nightmare

#9
I wonder if there's a Paleo-proxy or some kind of natural record that could be used to trace the frequency and magnitude of these events throughout Earth's geological past and if anyone is looking into it? For example we can look at the ocean sediments (usually by measuring changes in isotopic ratio of different compounds) and infer a great deal on temperature, carbon cycling, polar reversal, ocean circulation, chemistry etc. going back millions of years. It would be really neat and helpful if we discovered a proxy that we could use to trace solar flares hitting earth.

Re: A “perfect coronal mass ejection” could be a nightmare

#10
post #7

Earlier quoted context omitted.

How about the effect on all the satellites? I think th Carrington event size one would be catastrophic in the modern day. Imagine large urban areas going losing power for days or weeks. No electricity and no running water. Pretty scary stuff.

The loss of satellites does not imply power outages and it especially does not imply no running water. I'm not saying it wouldn't be disruptive, but people seem to have a fetish for disaster. Society is resilient, and life would return to near-normal within weeks, if not days, I predict.

I never implied that the loss of satellite = loss of power and water. I'm just saying that even a smaller solar flare (Compared to the Carrington event) cause large disturbances. Look at the 1989 that left Quebec and millions without power for 9 hours. Now imagine an entire country/continent losing power almost simultaneously.
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