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muriel_volestrangler

(106,236 posts)

30. CMEs are already prepared for

Reply to RobertEarl (Reply #22)

Wed Mar 26, 2014, 06:09 AM

Mar 2014

A CME typically takes 3 to 5 days to reach the Earth after it leaves the Sun. Observing the ejection of CMEs from the Sun provides an early warning of geomagnetic storms. Only recently, with SOHO, has it been possible to continuously observe the emission of CMEs from the Sun and determine if they are aimed at the Earth.

http://hesperia.gsfc.nasa.gov/sftheory/spaceweather.htm

SOHO is at the L1 Lagrangian point, between the Sun and the Earth. It has the Sun permanently in view, and monitors the state of the Sun. We thus get 3 to 5 days warning of CMEs, and the grid operators can disconnect parts to ensure minimal damage.

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This is not a thread for Doomers [View all] RobertEarl Mar 2014 OP

Cheer up -- humans will manage to evolve LiberalEsto Mar 2014 #1

Evolution doesn't take place overnight NoOneMan Mar 2014 #5

"Global warming leads to acidic oceans, 10 foot higher sea levels and a greatly altered climate...." NoOneMan Mar 2014 #2

Do you really sit around thinking about such scenarios? femmocrat Mar 2014 #3

well... zappaman Mar 2014 #4

Thanks. femmocrat Mar 2014 #12

Vacation, eh? RobertEarl Mar 2014 #14

Never assume. femmocrat Mar 2014 #16

Well, there is a wee bit of hope. Benton D Struckcheon Mar 2014 #6

I don't fret over thikngs like asteroids or CME's. hobbit709 Mar 2014 #7

Right. But nothing we can do? RobertEarl Mar 2014 #9

Well there's one thing you can do if a mountain size asteroid comes this way. hobbit709 Mar 2014 #11

We're innovative, but we're not wizards Scootaloo Mar 2014 #27

All your ancestors, going back to the beginning of life on earth, managed to survive and reproduce. hunter Mar 2014 #8

Back to the future? RobertEarl Mar 2014 #10

I like to think I know how to walk or swim away from trouble. hunter Mar 2014 #21

Lots of hope out there to buy ahead of time. Jefferson23 Mar 2014 #13

Ahead of time? RobertEarl Mar 2014 #15

You could, then pick up the duck tape on the way back home. Jefferson23 Mar 2014 #17

First, there's little danger for USA from Fukushima. longship Mar 2014 #18

All right...let's look at each of these scenarios one by one: Jgarrick Mar 2014 #19

CME would be a wreck RobertEarl Mar 2014 #22

CMEs are already prepared for muriel_volestrangler Mar 2014 #30

How about a gamma ray burst? Motown_Johnny Mar 2014 #35

Where will you be when the big one hits? Rex Mar 2014 #20

On the intertube is where I'll be RobertEarl Mar 2014 #23

Careful, they have cliffs there pinboy3niner Mar 2014 #25

Yeah and we are so overdue. Rex Mar 2014 #32

There is legitimate reason to be hopeful about climate change, TBH. AverageJoe90 Mar 2014 #24

Depends on what you're talking about Scootaloo Mar 2014 #26

Finally!! RobertEarl Mar 2014 #28

That article is nearly 20 years old Scootaloo Mar 2014 #29

I'm right with you, buddy! CFLDem Mar 2014 #31

Hit the Road, Cormac McCarthy style. nt MrScorpio Mar 2014 #33

The human race will end, it is inevitable. Motown_Johnny Mar 2014 #34

I'm sorry, but one of those scenarios is happening on June 23rd 2014 snooper2 Mar 2014 #36

It may be possible that a few humans will survive. Blue_In_AK Mar 2014 #37