Science-Technology
See other Science-Technology Articles
Title: Huge Solar Flare Jams Radio, Satellite Signals: NASA
Source:
Agence France-Presse
URL Source: http://news.yahoo.com/s/afp/2011021 ... 9wdWxhcgRzbGsDaHVnZXNvbGFyZmxh
Published: Feb 17, 2011
Author: Agence France-Presse
Post Date: 2011-02-17 12:23:15 by Brian S
Keywords: None
Views: 5568
Comments: 5
WASHINGTON (AFP) – A powerful solar eruption that triggered a huge geomagnetic storm has disturbed radio communications and could disrupt electrical power grids, radio and satellite communication in the next days, NASA said. A strong wave of charged plasma particles emanating from the Jupiter-sized sun spot, the most powerful seen in four years, has already disrupted radio communication in southern China. The Class X flash -- the largest such category -- erupted at 0156 GMT Tuesday, according to the US space agency. "X-class flares are the most powerful of all solar events that can trigger radio blackouts and long-lasting radiation storms," disturbing telecommunications and electric grids, NASA said Wednesday. Geomagnetic storms usually last 24 to 48 hours -- but some could last for many days, read a statement from the US National Weather Service. "Ground to air, ship to shore, short-wave broadcast and amateur radio are vulnerable to disruption during geomagnetic storms. Navigation systems like GPS can also be adversely affected." NASA's Solar Dynamics Observatory said it saw a large coronal mass ejection (CME) associated with the flash blasting toward Earth at about 560 miles per second (900 kilometers per second). The flare spread from Active Region 1158 in the sun's southern hemisphere, which had so far lagged behind the northern hemisphere in flash activity. It followed several smaller flares in recent days. "The calm before the storm," read a statement on the US National Weather Service Space Weather Prediction Service. "Three CMEs are enroute, all a part of the Radio Blackout events on February 13, 14, and 15 (UTC). The last of the three seems to be the fastest and may catch both of the forerunners about mid to late ... February 17." The China Meteorological Administration reported that the solar flare caused "sudden ionospheric disturbances" in the atmosphere above China and jammed short-wave radio communications in the southern part of the country. The CMA warned there was a high probability that large solar flares would appear over the next three days, the official Xinhua news agency reported. The British Geological Survey (BGS) said meanwhile that the solar storm would result in spectacular Northern Lights displays starting Thursday. One coronal mass ejection reached Earth on February 14, "sparking Valentine's Day displays of the Northern Lights (aurora borealis) further south than usual." "Two CMEs are expected to arrive in the next 24-48 hours and further... displays are possible some time over the next two nights if skies are clear," it said. The office published geomagnetic records dating back to the Victorian era which it hopes will help in planning for future storms. "Life increasingly depends on technologies that didn't exist when the magnetic recordings began," said Alan Thomson, BGS head of geomagnetism. "Studying the records will tell us what we have to plan and prepare for to make sure systems can resist solar storms," he said. A 2009 report by a panel of scientists assembled by NASA said that a sustained and powerful solar flare outbreak could overwhelm high-voltage transformers with electrical currents and short-circuit energy grids. The report, titled "Severe Space Weather Events -- Understanding Societal and Economic Impacts" warned that such a catastrophic event could cost the United States alone up to two trillion dollars in repairs in the first year -- and it could take up to 10 years to fully recover.
Post Comment Private Reply Ignore Thread
Top • Page Up • Full Thread • Page Down • Bottom/Latest
#1. To: Brian S (#0)
Dammit, you gotta' QUIT driving your SUV... global warming, dontcha' know... ;)
Socialist ass-hats think "There will be no more money when the U.S. dollar has no value, until that time we can keep printing more." And yes, that IS from LF's answer to Ben Bernanke, go65, leading disfunctional and delusional socialist of the forum. "You want me to kill THE ENEMIES of Jappos, I'll kill THE ENEMIES of Jappos, Rebs, or Sioux, or Cheyenne... For 500 bucks a month I'll kill whoever you want. But keep one thing in mind: I'd happily kill you for free." Algren, "The Last Samurai" My SUV stays parked until Sunday when I take my S. Husky for a tour of the back roads. With petro selling for $3.25 un/reg and the truck getting 15mph, it is only logical to drive the olds for daily errands. BTW, perhaps you've not noticed that I rarely, if ever, post topics relating to global warming.
Never swear "allegiance" to anything other than the 'right to change your mind'!
The hydrogen from the flares will react with the oxidized surface of rocks to form more H20. Thanks for posting this. You can tell who the lobbyists here are by their obsession with putting a political spin on every topic.
http://first-draft-blog.typepad.com/.a/6a00d8341c5ced53ef0148c7a28c4b970c-320wi
So what's it gonna be? A comet? An asteroid? The Yellowstone Caldera? A Solar Flare? The Earth flying into the Sun? The Earth flying away from the Sun? Obama? (My money's on Obama)
______________________________________________________________________________ LOL. Nice.
Socialist ass-hats think "There will be no more money when the U.S. dollar has no value, until that time we can keep printing more." And yes, that IS from LF's answer to Ben Bernanke, go65, leading disfunctional and delusional socialist of the forum. "You want me to kill THE ENEMIES of Jappos, I'll kill THE ENEMIES of Jappos, Rebs, or Sioux, or Cheyenne... For 500 bucks a month I'll kill whoever you want. But keep one thing in mind: I'd happily kill you for free." Algren, "The Last Samurai" 
#2. To: Capitalist Eric (#1)
Dammit, you gotta' QUIT driving your SUV...
#3. To: Brian S (#2)
(Edited)
#4. To: Brian S (#0)
"We've got a governor in Rod Blagojevich who has delivered consistently on behalf of the people of Illinois"
--Barack H. Obama, August 2006
#5. To: Ignore Amos (#4)
(My money's on Obama)
Top • Page Up • Full Thread • Page Down • Bottom/Latest
[Home] [Headlines] [Latest Articles] [Latest Comments] [Post] [Mail] [Sign-in] [Setup] [Help] [Register]