Getting Ready for the Next Big Solar Storm

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PostTue Jun 28, 2011 8:22 am » by Lightbringer



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PostTue Jun 28, 2011 9:19 am » by Will69ease


Is this not Spam?

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PostTue Jun 28, 2011 10:08 am » by Flipper


Well if it is spam the link goes to the nasa science news article about the next big solar storms..


Getting Ready for the Next Big Solar Storm

June 21, 2011: In Sept. 1859, on the eve of a below-average1 solar cycle, the sun unleashed one of the most powerful storms in centuries. The underlying flare was so unusual, researchers still aren't sure how to categorize it. The blast peppered Earth with the most energetic protons in half-a-millennium, induced electrical currents that set telegraph offices on fire, and sparked Northern Lights over Cuba and Hawaii.

This week, officials have gathered at the National Press Club in Washington DC to ask themselves a simple question: What if it happens again?
SWEF (powerlines, 200px)
Modern power grids are vulnerable to solar storms. Photo credit: Martin Stojanovski

"A similar storm today might knock us for a loop," says Lika Guhathakurta, a solar physicist at NASA headquarters. "Modern society depends on high-tech systems such as smart power grids, GPS, and satellite communications--all of which are vulnerable to solar storms."

She and more than a hundred others are attending the fifth annual Space Weather Enterprise Forum—"SWEF" for short. The purpose of SWEF is to raise awareness of space weather and its effects on society especially among policy makers and emergency responders. Attendees come from the US Congress, FEMA, power companies, the United Nations, NASA, NOAA and more.

As 2011 unfolds, the sun is once again on the eve of a below-average solar cycle—at least that’s what forecasters are saying. The "Carrington event" of 1859 (named after astronomer Richard Carrington, who witnessed the instigating flare) reminds us that strong storms can occur even when the underlying cycle is nominally weak.

In 1859 the worst-case scenario was a day or two without telegraph messages and a lot of puzzled sky watchers on tropical islands.

In 2011 the situation would be more serious. An avalanche of blackouts carried across continents by long-distance power lines could last for weeks to months as engineers struggle to repair damaged transformers. Planes and ships couldn’t trust GPS units for navigation. Banking and financial networks might go offline, disrupting commerce in a way unique to the Information Age. According to a 2008 report from the National Academy of Sciences, a century-class solar storm could have the economic impact of 20 hurricane Katrinas.

As policy makers meet to learn about this menace, NASA researchers a few miles away are actually doing something about it:

"We can now track the progress of solar storms in 3 dimensions as the storms bear down on Earth," says Michael Hesse, chief of the GSFC Space Weather Lab and a speaker at the forum. "This sets the stage for actionable space weather alerts that could preserve power grids and other high-tech assets during extreme periods of solar activity."
SWEF (3D CME, 558px)
Analysts at the GSFC Space Weather Lab created this 3D forecast-model of a coronal mass ejection (CME) heading for Earth on June 21st. Click here to watch the CME sweep past our planet.

They do it using data from a fleet of NASA spacecraft surrounding the sun. Analysts at the lab feed the information into a bank of supercomputers for processing. Within hours of a major eruption, the computers spit out a 3D movie showing where the storm will go, which planets and spacecraft it will hit, and predicting when the impacts will occur. This kind of "interplanetary forecast" is unprecedented in the short history of space weather forecasting.

"This is a really exciting time to work as a space weather forecaster," says Antti Pulkkinen, a researcher at the Space Weather Lab. "The emergence of serious physics-based space weather models is putting us in a position to predict if something major will happen."

Some of the computer models are so sophisticated, they can even predict electrical currents flowing in the soil of Earth when a solar storm strikes. These currents are what do the most damage to power transformers. An experimental project named "Solar Shield" led by Pulkkinen aims to pinpoint transformers in greatest danger of failure during any particular storm.

"Disconnecting a specific transformer for a few hours could forestall weeks of regional blackouts," says Pulkkinen.

Another SWEF speaker, John Allen of NASA's Space Operations Mission Directorate, pointed out that while people from all walks of life can be affected by space weather, no one is out on the front lines quite like astronauts.

"Astronauts are routinely exposed to four times as much radiation as industrial radiation workers on Earth," he says. "It's a serious occupational hazard."
SWEF (astronaut, 200px)
Astronauts are on the front line of stormy space weather.

NASA keeps careful track of each astronaut's accumulated dosage throughout their careers. Every launch, every space walk, every solar flare is carefully accounted for. If an astronaut gets too close to the limits ... he or she might not be allowed out of the space station! Accurate space weather alerts can help keep these exposures under control by, e.g., postponing spacewalks when flares are likely.

Speaking at the forum, Allen called for a new kind of forecast: "We could use All Clear alerts. In addition to knowing when it's dangerous to go outside, we'd also like to know when it's safe. This is another frontier for forecasters--not only telling us when a sunspot will erupt, but also when it won't."

The educational mission of SWEF is key to storm preparedness. As Lika Guhathakurta and colleague Dan Baker of the University of Colorado asked in a June 17th New York Times op-ed: "What good are space weather alerts if people don’t understand them and won’t react to them?"

By spreading the word, SWEF will help.
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PostTue Jun 28, 2011 2:58 pm » by Rich316


This is what I don't understand. We've seen all sorts of sun cycles over the years, so why now? why are they talking about it now? Particularly when the sun spot number prediction is said to be record low in numbers (a similar level from way back in 1928).. but I see in article after article over the past few years 'but dont let that fool you, the carrington event occurred during a low sun spot cycle' and 'solar flares could knock out satellites and electronic equipment' etc... something isn't right with all this talk of cycle 24, low sunspots predicted, this means less CME's and flares, not more! I smell a rat.

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PostSun Jul 17, 2011 1:21 am » by Luftuso


rich316 wrote:This is what I don't understand. We've seen all sorts of sun cycles over the years, so why now? why are they talking about it now? Particularly when the sun spot number prediction is said to be record low in numbers (a similar level from way back in 1928).. but I see in article after article over the past few years 'but dont let that fool you, the carrington event occurred during a low sun spot cycle' and 'solar flares could knock out satellites and electronic equipment' etc... something isn't right with all this talk of cycle 24, low sunspots predicted, this means less CME's and flares, not more! I smell a rat.


Is it possible that the sun would reduce the number of sun spots, almost like a clam before the storm? Then unleash a massive solar wind causing us all to tan at insane rates so we all look Hispanic?

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PostSun Jul 17, 2011 1:58 pm » by Rich316


luftuso wrote:
Is it possible that the sun would reduce the number of sun spots, almost like a clam before the storm? Then unleash a massive solar wind causing us all to tan at insane rates so we all look Hispanic?


Well anything is possible I guess, you wont get burned though, lol. The thing with sunspots is when they drop right down, there is simply less activity, less flares and ejections etc. Massive CME's should happen when sunspots are at high levels and activity is up, not the other way around but it can happen. Although many scientists have a handle on this, it's still a difficult one to work out so yeah anything is possible. I just find it ironic that we're being warned for cycle 24 when it's predicted to be a fizzer.. There have been other 'fizzers' before and nasa haven't warned of anything of any significance. The 1859 carrington event did happen when sunspots were at a low, not sure of the number, but about the same as they've predicted for cycle 24.

NASA's Solar Cycle #24 2009 Prediction

"An international panel of experts led by NOAA and sponsored by NASA has released a new prediction for the next solar cycle. Solar Cycle 24 will peak, they say, in May 2013 with a below-average number of sunspots.

"If our prediction is correct, Solar Cycle 24 will have a peak sunspot number of 90, the lowest of any cycle since 1928 when Solar Cycle 16 peaked at 78," says panel chairman Doug Biesecker of the NOAA Space Weather Prediction Center.

It is tempting to describe such a cycle as "weak" or "mild," but that could give the wrong impression.

"Even a below-average cycle is capable of producing severe space weather," points out Biesecker. "The great geomagnetic storm of 1859, for instance, occurred during a solar cycle of about the same size we’re predicting for 2013."

The 1859 storm--known as the "Carrington Event" after astronomer Richard Carrington who witnessed the instigating solar flare--electrified transmission cables, set fires in telegraph offices, and produced Northern Lights
so bright that people could read newspapers by their red and green glow. A recent report by the National Academy of Sciences found that if a similar storm occurred today, it could cause $1 to 2 trillion in damages to society's high-tech infrastructure and require four to ten years for complete recovery. For comparison, Hurricane
Katrina caused "only" $80 to 125 billion in damage.""

You can read about the suns slowing conveyer belt here;
http://science.nasa.gov/science-news/science-at-nasa/2006/10may_longrange/
and
http://science.nasa.gov/science-news/science-at-nasa/2009/01apr_deepsolarminimum/

I wouldn't worry too much though. Will have some marshmellows on hand just in case :lol:



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