[SFDXA] Plan to Survive a Solar Disaster...
Bill
bmarx at bellsouth.net
Mon Nov 9 14:27:32 EST 2015
The White House is prepping for a single weather event that could cost
$2 trillion in damage
Jessica Orwig Nov. 6, 2015, 10:44 AM 132,403 27
To our electronic way of life, the sun is a formidable foe, and the
White House is taking protective action against it.
On October 29, the White House's National Science and Technology Council
released its strategic plan to prepare for an extreme weather event in
space that could destroy satellites, spacecraft, and vital
telecommunications systems.
Many of these electrical systems depend on one another, which is a
recipe for disaster.
"These critical infrastructures make up a diverse, complex,
interdependent system of systems in which a failure of one could cascade
to another," the NSTC reported in its plan.
A $2 trillion gamble
Every second, the sun shoots bursts of charged subatomic particles, in
the form of solar wind, into space at speeds of 1 million mph.
The solar wind typically is weak enough that Earth's magnetic field
deflects most of it, as in the NASA illustration below:
popsciseNASA
If an especially powerful barrage heads our way, however, it could
easily penetrate our magnetic field, fry our electric power systems, and
kick us back into the dark ages — all within a matter of hours.
Canada got a minor taste of this back in 1989 when a powerful surge
caused the collapse of Hydro-Québec's electricity-transmission system
for nine hours. If the storm had been stronger, it might have wiped out
a lot more than just Québec's electrical transmission.
Though a doomsday scenario like this hasn't happened yet, experts
estimated in 2008 that a single monster solar surge could cause up to $2
trillion in economic damage.
That's almost 10 times the cost of any single natural disaster in
recorded history. And NASA predicts there is a 12% chance we'll get hit
in the next decade.
The White House isn't about to gamble with those odds.
Countdown: 12 to 15 hours' warning
While there's not much we can do to prevent a surge of powerful solar
radiation from striking Earth, there are steps that we can take to
mitigate the damage.
sunNASA/SDO
The first step is predicting when one might hit.
Right now, the NOAA Space Weather Prediction Center has 24/7
surveillance on the sun for this specific purpose.
"You can think of the sun as kind of like a volcano," Thomas Berger, the
center's director, told Business Insider. "It's difficult to predict
precisely when it's going to erupt, but you can see the signs building up."
Once such a flare occurs, NOAA can give the proper agencies — including
airlines, space-satellite operators, and power companies — a 12- to
15-hour warning before it strikes Earth, Berger said.
"That's not as much as we'd like to give, and it would be better if we
can give more, but right now that's about the best we can do," Berger
said, adding that continued solar research by NASA would almost
certainly improve future warning systems.
But simply knowing a storm is headed your way isn't enough. You also
need to predict how strong it is — and that information doesn't come
until much later, Berger said.
Countdown: 15 to 60 minutes to act
To determine storm intensity, NOAA has what Berger calls a space
"tsunami buoy," which is floating about 932,000 miles from Earth between
our planet and the sun at a point in space called L1, shown below:
681577main1_lagrange points ace 670NASA/H. Zell
The buoy is called the Advanced Composition Explorer, or ACE. When a
storm hits ACE, it gives NOAA a better handle on what exactly we're in for:
"ACE relays that information back at the speed of light, so we have
about 15 to 60 minutes before the storm hits the Earth after it hits
that buoy satellite," Berger said. "And using that we can say ... 'OK we
know exactly how big this thing is and how bad it's going to be.'"
ACE is 17 years old and will soon be replaced by the Deep Space Climate
Observatory satellite, or DSCOVR, which will serve as America's primary
warning system for solar storms.
Rallying help in America and beyond
In its report, the White House calls upon two dozen national
departments, agencies, and service branches to reach a number of
benchmarks in the next one to two years.
Electric pylons are seen after sunset near the town of Slutsk, south of
Minsk July 18, 2014. REUTERS/Vasily FedosenkoThomson Reuters
These benchmarks are designed to address actions like "creating
engineering standards, developing vulnerability assessments,
establishing decision points and thresholds for action, understanding
risk, developing more effective mitigation procedures and practices, and
enhancing response and recovery planning," according to the report.
For example, the Department of Homeland Security, in partnership with
the Department of Energy, has been given 120 days (from the strategy
plan's publication date) to develop an "all-hazard Power Outage Incident
Annex" that will include steps to respond and recover from an extreme
solar surge, if one strikes.
America isn't the only one taking steps. An extreme solar event could
affect the entire globe, which is why the European Space Agency (ESA) is
now working with scientists across 14 European countries on developing a
warning network, it reported on Thursday.
"The development of space-weather precursor services in Europe is a
growing success, and also promises commercial opportunities that we
could not foresee just a few years ago," Juha-Pekka Luntama, ESA's space
weather manager, said in an ESA press release.
All of these efforts are great news because Earth is the only home we've
got.
Full Article and Pictures:
http://www.businessinsider.com/national-space-weather-action-plan-warns-of-extreme-solar-event-2015-11?amp&&
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