Ian
priscilla 1Magnetic Storms
September 18th 2009 13:53
Associated with solar flares, a geomagnetic storm is caused by a solar wind shock wave which typically strikes the Earth's magnetic field. The solar wind pressure on the magnetosphere will increase or decrease depending on the Sun's activity. These solar wind pressure changes modify the electric currents in the ionosphere. Magnetic storms usually last 24 to 48 hours, but some may last for many days. In 1989, an electromagnetic storm disrupted power throughout most of Quebec—it caused auroras as far south as Texas.
Magnetic storm over Lake LaBerge in Yukon Territory on Feb. 28, 2007
The magnetic storm of September 10, 2005 over Quebec
Magnetic storm over Hrútfjallstindar mountain in Iceland on April 13, 2008
Incredible angle of the Aurora australis caused by a geomagnetic storm
*Images and information sourced from Environmental Graffiti.
**This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article for Geomagnetic storm
| 52 |
| Vote |
subscribe to this blog
Comment by Wilson Pon
Health 2 Know
Adventure Toes
boxing sound
Business Rope
Fun Places 2 Travel