The effects of severe weather are felt every year by many South Africans. To obtain critical weather information, the SAWDOS use voluntary weather observers. These volunteers help keep their local communities safe and informed by providing timely and accurate reports of severe weather to the SAWDOS for publication on the Blog. The SAWDOS is a non-profit organization that renders a FREE COMMUNITY-BASED SERVICE.
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Tuesday, 28 February 2012
Video: Five Solar Eruptions in Two Days (Feb 23 - 24, 2012)
From February 23 through February 24 our Sun produced an astonishing five solar eruptions, launched from the top, bottom, left and right sides of the solar disk. Four of those eruptions came in just a 24 hour period.
One of the eruptions, a large snaking magnetic filament, erupted during the early hours of February 24, 2012 and launched the first of two coronal mass ejections (CME) in Earth’s direction.
The filament eruption, as seen in the video taken by the Solar Dynamic Observatory (SDO) in extreme ultraviolet wavelength, forms a visible split in the sun's atmosphere, where plasma races away in waves in opposite directions. The divide stretches the length of the original filament location, almost 248,500 miles (400,000 km).
Solar filaments are darker, cooler solar material floating above the sun's surface, suspended by magnetic forces. When they appear over the solar limb they are called prominences.
Credit: NASA SDO
Labels:
Solar Storms,
Sun and Moon
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