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Author Topic: The Carrington Event of 1859, and huge CMEs of equal magnitude  (Read 3144 times)

Yowbarb

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The Carrington Event of 1859, and huge CMEs of equal magnitude
« on: September 03, 2015, 05:39:19 PM »
Note from Yowbarb: This Topic is about "The Carrington Event" and geomagnetic storms of equal magnitude; any discussions Members want on this, plus preparedness etc. PLS note: In 2012 there was a huge CMW of equal magnitud3e or perhaps larger but it went off into space, away from Earth.
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http://www.spaceweather.com/
156 YEARS AGO, A GEOMAGNETIC MEGA-STORM: On Sept. 2nd, a billion-ton coronal mass ejection (CME) slammed into Earth's magnetic field. Campers in the Rocky Mountains woke up in the middle of the night, thinking that the glow they saw was sunrise. No, it was the Northern Lights. People in Cuba read their morning paper by the red illumination of aurora borealis. Earth was peppered by particles so energetic, they altered the chemistry of polar ice.

Hard to believe? It really happened--156 years ago. This map shows where auroras were sighted in the early hours of Sept. 2, 1859:

MadMax

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Re: The Carrington Event of 1859, and huge CMEs of equal magnitude
« Reply #1 on: March 28, 2019, 08:55:07 AM »
Traces of Giant, 2,700-Year-Old Solar Storm Detected in Greenland Ice

https://gizmodo.com/traces-of-giant-2-700-year-old-solar-storm-detected-in-1833205336


Evidence of an unusually strong solar storm that hit Earth in 660 BCE has been detected in Greenland ice cores—a finding which shows we still have lots to learn about these disruptive events.

An extreme form of solar storm, known as a solar proton event (SPE), struck our planet 2,679 years ago, according to new research published today in Proceedings of the National Academy of Sciences. If an event of such magnitude were to happen today, it would likely wreak havoc on our technological infrastructure, including communications and navigation. Lund University geologist Raimund Muscheler and his colleagues presented evidence in the form of elevated levels of beryllium-10 and chlorine-36 isotopes embedded within ancient Greenland ice cores.

It’s now the third massive SPE known to scientists, the others occurring 1,245 and 1,025 years ago. This latest discovery means solar storms of this variety are likely happening more frequently than we thought—perhaps once every 1,000 years—but more data is required to create more reliable estimates.

SPEs are capable of temporarily degrading the Earth’s ozone layer, which allows excessive amounts of ultraviolet radiation to reach the ground. This is (moderately) bad for lifeforms on the surface, but it’s not the kind of thing that could trigger a mass extinction. As a risk, SPEs are a much bigger problem in terms of how they would affect our technologies; a sufficiently strong SPE poses “a threat to modern society in terms of communication and navigation systems, space technologies, and commercial aircraft operations,” according to the new study. These extreme space weather events could also be catastrophic for astronauts working in the International Space Station, who aren’t shielded by Earth’s atmosphere.

"Ignorance is Bliss" - (Agent Smith the first Matrix Movie)

 

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