Happy 159th birthday - The Carrington Event

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From NASA's wonderful Space Weather (a daily read for me)

159 YEARS AGO, A GEOMAGNETIC MEGA-STORM: Picture this: A billion-ton coronal mass ejection (CME) slams into Earth's magnetic field. Campers in the Rocky Mountains wake up in the middle of the night, thinking that the glow they see is sunrise. No, it's the Northern Lights. People in Cuba read their morning paper by the red illumination of aurora borealis. Earth is peppered by particles so energetic, they alter the chemistry of polar ice.

Hard to believe? It really happened--exactly 159 years ago.

As the day unfolded, the gathering storm electrified telegraph lines, shocking technicians and setting their telegraph papers on fire. The "Victorian Internet" was knocked offline. Magnetometers around the world recorded strong disturbances in the planetary magnetic field for more than a week.

The cause of all this was an extraordinary solar flare witnessed the day before by British astronomer Richard Carrington. His sighting on Sept. 1, 1859, marked the discovery of solar flares and foreshadowed a new field of study: space weather. According to a NASA-funded study by the National Academy of Sciences, if a similar "Carrington Event" occurred today, it could cause substantial damage to society's high-tech infrastructure and require years for complete recovery.

Could it happen again? Almost certainly. In a paper published just a few months ago, researchers from the University of Birmingham used Extreme Value Theory to estimate the average time between "Carrington-like flares." Their best answer: ~100 years. In other words, we may be overdue for a really big storm. Read their original research here.

Not only CAN happen, WILL happen. Fortune favors the prepared.

1 Comment

re Carrington - Chicken Little Alert! All you believers in CME-doom, get in line for your Home Power Wall from Elon Musk. And bring money!

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About this Entry

This page contains a single entry by DaveH published on September 2, 2018 7:31 PM.

Back on the island was the previous entry in this blog.

Hopefully it stays a tropical storm - Gordon is the next entry in this blog.

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