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sce56 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 12:38 PM
Original message
Get ready, NASA is trying to, the next Solar Max is going to be deadly to Satellites Electric Grid
http://science.nasa.gov/science-news/science-at-nasa/2010/04jun_swef/

As the Sun Awakens, NASA Keeps a Wary Eye on Space Weather

June 4, 2010: Earth and space are about to come into contact in a way that's new to human history. To make preparations, authorities in Washington DC are holding a meeting: The Space Weather Enterprise Forum at the National Press Club on June 8th.

As the Sun Awakens Many technologies of the 21st century are vulnerable to solar storms.

Richard Fisher, head of NASA's Heliophysics Division, explains what it's all about:

"The sun is waking up from a deep slumber, and in the next few years we expect to see much higher levels of solar activity. At the same time, our technological society has developed an unprecedented sensitivity to solar storms. The intersection of these two issues is what we're getting together to discuss."

The National Academy of Sciences framed the problem two years ago in a landmark report entitled "Severe Space Weather Events—Societal and Economic Impacts." It noted how people of the 21st-century rely on high-tech systems for the basics of daily life. Smart power grids, GPS navigation, air travel, financial services and emergency radio communications can all be knocked out by intense solar activity. A century-class solar storm, the Academy warned, could cause twenty times more economic damage than Hurricane Katrina.

Much of the damage can be mitigated if managers know a storm is coming. Putting satellites in 'safe mode' and disconnecting transformers can protect these assets from damaging electrical surges. Preventative action, however, requires accurate forecasting—a job that has been assigned to NOAA.

"Space weather forecasting is still in its infancy, but we're making rapid progress," says Thomas Bogdan, director of NOAA's Space Weather Prediction Center in Boulder, Colorado.

Bogdan sees the collaboration between NASA and NOAA as key. "NASA's fleet of heliophysics research spacecraft provides us with up-to-the-minute information about what's happening on the sun. They are an important complement to our own GOES and POES satellites, which focus more on the near-Earth environment."



Among dozens of NASA spacecraft, he notes three of special significance: STEREO, SDO and ACE.

STEREO (Solar Terrestrial Relations Observatory) is a pair of spacecraft stationed on opposite sides of the sun with a combined view of 90% of the stellar surface. In the past, active sunspots could hide out on the sun's farside, invisible from Earth, and then suddenly emerge over the limb spitting flares and CMEs. STEREO makes such surprise attacks impossible.

SDO (the Solar Dynamics Observatory) is the newest addition to NASA's fleet. Just launched in February, it is able to photograph solar active regions with unprecedented spectral, temporal and spatial resolution. Researchers can now study eruptions in exquisite detail, raising hopes that they will learn how flares work and how to predict them. SDO also monitors the sun's extreme UV output, which controls the response of Earth's atmosphere to solar variability.
As the Sun Awakens...
On April 19, 2010, SDO observed one of the most massive eruptions in years. Earth was not in the line of fire ... this time.

Bogdan's favorite NASA satellite, however, is an old one: the Advanced Composition Explorer (ACE) launched in 1997. "Where would we be without it?" he wonders. ACE is a solar wind monitor. It sits upstream between the sun and Earth, detecting solar wind gusts, billion-ton CMEs, and radiation storms as much as 30 minutes before they hit our planet.

"ACE is our best early warning system," says Bogdan. "It allows us to notify utility and satellite operators when a storm is about to hit.”

NASA spacecraft were not originally intended for operational forecasting—"but it turns out that our data have practical economic and civil uses," notes Fisher. "This is a good example of space science supporting modern society."

2010 marks the 4th year in a row that policymakers, researchers, legislators and reporters have gathered in Washington DC to share ideas about space weather. This year, forum organizers plan to sharpen the focus on critical infrastructure protection. The ultimate goal is to improve the nation’s ability to prepare, mitigate, and respond to potentially devastating space weather events.

"I believe we're on the threshold of a new era in which space weather can be as influential in our daily lives as ordinary terrestrial weather." Fisher concludes. "We take this very seriously indeed."

For more information about the meeting, please visit the Space Weather Enterprise Forum home page at http://www.nswp.gov/swef/swef_2010.html.


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MineralMan Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 12:45 PM
Response to Original message
1. We're Doomed! Doomed, I tell you!
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sce56 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 12:46 PM
Response to Reply #1
2. Only if we don't prepare
Funny seems like the opening findings in the movie 2012!
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BR_Parkway Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 02:26 PM
Response to Reply #2
4. Seems like if we keep having disasters like the Gulf, Mother Nature's
liable to find a way to get rid of us before 2012
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neverforget Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 08:16 PM
Response to Reply #1
7. Solar storms happen and some of them could cripple us as we would
only have minutes to prepare.

http://www.space.com/scienceastronomy/mystery_monday_031027.html

Extreme measures

To get an idea of the strength of the 1859 storm, you have to wade into nT's for a moment.

A space storm's impact is measured in nano-Teslas (nT), Brekke explained. The lower the figure, the more powerful the storm. A moderate storm can be around -100 nT; extreme and damaging storms have been logged at around -300 nT.

The 1989 coronal mass ejection that knocked out power to all of Quebec, Canada measured -589 nT, Brekke said. The 1859 perfect storm was estimated to have been -1,760 nT. Brekke used three exclamation points in his e-mail delivering that number.

People on the ground are generally safe even in the worst space weather. But technology could be in trouble when the next super storm hits.

"In 1859, the technology was quite low in comparison to today's technology," Tsurutani said. "However the technology that we rely on today is much more vulnerable."

A strong storm does its damage in part by inducing currents on power and communication lines, leading to potential overloads. Obviously, there are a lot more wires on Earth today, "so one might expect much worse problems if it occurred today."

The charged particles can also zap satellites, as has occurred with handful of storms in recent years -- events with far fewer charged particles than in 1859. A space storm also heats the upper level of Earth's atmosphere, causing it to expand. That's no good for satellites that can get caught up in air that didn't used to be there.

"This can lead to enhanced satellite drag and possible loss of these to the atmosphere," Tsurutani said.

Tsurutani and his colleagues -- Walter Gonzalez of the Brazilian National Space Institute and Gurbax Lakhina and Sobhana Alex of the India Institute of Geomagnetism -- reviewed known observations of the 1859 event's solar and aurora output, plus accounts from the ground. They also used recently rediscovered historic data on Earth's magnetic field from the Colaba Observatory in India.

The findings were published in a recent issue of the Journal of Geophysical Research.
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Ruby the Liberal Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 12:54 PM
Response to Original message
3. Reposting for screen scroll
(Sorry - but that was hard to read. Reposting it for scroll)

Richard Fisher, head of NASA's Heliophysics Division, explains what it's all about:

"The sun is waking up from a deep slumber, and in the next few years we expect to see much higher levels of solar activity. At the same time, our technological society has developed an unprecedented sensitivity to solar storms. The intersection of these two issues is what we're getting together to discuss."

The National Academy of Sciences framed the problem two years ago in a landmark report entitled "Severe Space Weather Events—Societal and Economic Impacts." It noted how people of the 21st-century rely on high-tech systems for the basics of daily life. Smart power grids, GPS navigation, air travel, financial services and emergency radio communications can all be knocked out by intense solar activity. A century-class solar storm, the Academy warned, could cause twenty times more economic damage than Hurricane Katrina.

Much of the damage can be mitigated if managers know a storm is coming. Putting satellites in 'safe mode' and disconnecting transformers can protect these assets from damaging electrical surges. Preventative action, however, requires accurate forecasting—a job that has been assigned to NOAA.

"Space weather forecasting is still in its infancy, but we're making rapid progress," says Thomas Bogdan, director of NOAA's Space Weather Prediction Center in Boulder, Colorado.

Bogdan sees the collaboration between NASA and NOAA as key. "NASA's fleet of heliophysics research spacecraft provides us with up-to-the-minute information about what's happening on the sun. They are an important complement to our own GOES and POES satellites, which focus more on the near-Earth environment."

Movie Link

Among dozens of NASA spacecraft, he notes three of special significance: STEREO, SDO and ACE.

STEREO (Solar Terrestrial Relations Observatory) is a pair of spacecraft stationed on opposite sides of the sun with a combined view of 90% of the stellar surface. In the past, active sunspots could hide out on the sun's farside, invisible from Earth, and then suddenly emerge over the limb spitting flares and CMEs. STEREO makes such surprise attacks impossible.

SDO (the Solar Dynamics Observatory) is the newest addition to NASA's fleet. Just launched in February, it is able to photograph solar active regions with unprecedented spectral, temporal and spatial resolution. Researchers can now study eruptions in exquisite detail, raising hopes that they will learn how flares work and how to predict them. SDO also monitors the sun's extreme UV output, which controls the response of Earth's atmosphere to solar variability.
As the Sun Awakens... Movie Link
On April 19, 2010, SDO observed one of the most massive eruptions in years. Earth was not in the line of fire ... this time.

Bogdan's favorite NASA satellite, however, is an old one: the Advanced Composition Explorer (ACE) launched in 1997. "Where would we be without it?" he wonders. ACE is a solar wind monitor. It sits upstream between the sun and Earth, detecting solar wind gusts, billion-ton CMEs, and radiation storms as much as 30 minutes before they hit our planet.

"ACE is our best early warning system," says Bogdan. "It allows us to notify utility and satellite operators when a storm is about to hit.”

NASA spacecraft were not originally intended for operational forecasting—"but it turns out that our data have practical economic and civil uses," notes Fisher. "This is a good example of space science supporting modern society."

2010 marks the 4th year in a row that policymakers, researchers, legislators and reporters have gathered in Washington DC to share ideas about space weather. This year, forum organizers plan to sharpen the focus on critical infrastructure protection. The ultimate goal is to improve the nation’s ability to prepare, mitigate, and respond to potentially devastating space weather events.

"I believe we're on the threshold of a new era in which space weather can be as influential in our daily lives as ordinary terrestrial weather." Fisher concludes. "We take this very seriously indeed."

For more information about the meeting, please visit the Space Weather Enterprise Forum home page at http://www.nswp.gov/swef/swef_2010.html .
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hvn_nbr_2 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 06:59 PM
Response to Reply #3
6. Thank you. Saved me some time and effort. nt
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Joanne98 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 06:01 PM
Response to Original message
5. That's a cool picture.
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sce56 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-05-10 10:21 PM
Response to Reply #5
8. Which one?
The poster or the movies?
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Joanne98 Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-06-10 11:51 AM
Response to Reply #8
9. The big one.
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sce56 Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-06-10 01:43 PM
Response to Reply #9
10. Did you look at the MOV of the solar flare?
Edited on Sun Jun-06-10 01:44 PM by sce56
It was pretty impressive
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rasputin1952 Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-06-10 03:02 PM
Response to Original message
11. Interesting hyperlink further into the story...
with a map of susceptible areas in US:




Above: What if the May 1921 superstorm occurred today? A US map of vulnerable transformers with areas of probable system collapse encircled. A state-by-state map of transformer vulnerability is also available: click here. Credit: National Academy of Sciences.

The strongest geomagnetic storm on record is the Carrington Event of August-September 1859, named after British astronomer Richard Carrington who witnessed the instigating solar flare with his unaided eye while he was projecting an image of the sun on a white screen. Geomagnetic activity triggered by the explosion electrified telegraph lines, shocking technicians and setting their telegraph papers on fire; Northern Lights spread as far south as Cuba and Hawaii; auroras over the Rocky Mountains were so bright, the glow woke campers who began preparing breakfast because they thought it was morning. Best estimates rank the Carrington Event as 50% or more stronger than the superstorm of May 1921.

"A contemporary repetition of the Carrington Event would cause … extensive social and economic disruptions," the report warns. Power outages would be accompanied by radio blackouts and satellite malfunctions; telecommunications, GPS navigation, banking and finance, and transportation would all be affected. Some problems would correct themselves with the fading of the storm: radio and GPS transmissions could come back online fairly quickly. Other problems would be lasting: a burnt-out multi-ton transformer, for instance, can take weeks or months to repair. The total economic impact in the first year alone could reach $2 trillion, some 20 times greater than the costs of a Hurricane Katrina or, to use a timelier example, a few TARPs.


Another hyperlink takes this to the state level.


http://science.nasa.gov/science-news/science-at-nasa/2009/21jan_severespaceweather/

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sce56 Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-07-10 12:04 AM
Response to Reply #11
12. I will be bringing this up with my Engineer, Right now once through cooling has taken all the
attention.

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HooptieWagon Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-07-10 09:17 AM
Response to Original message
13. Boaters - GPS dead? No problem, I have a sextant and charts. n/t
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