Solar Cycle 24 Begins |
Solar Cycle 24 Begins |
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Jan 4 2008, 07:45 PM
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Guests |
Latest from spaceweather.com
SOLAR CYCLE 24: Solar physicists have been waiting for the appearance of a reversed-polarity sunspot to signal the start of the next solar cycle. The wait is over. A magnetically reversed, high-latitude sunspot emerged today: image. If you have a solar telescope, take a look at this important new active region. It marks the beginning of Solar Cycle 24 and the sun's slow ascent back to Solar Maximum. Magnetic Image Visible Light Image |
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Dec 30 2010, 08:22 PM
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Member Group: Members Posts: 808 Joined: 10-October 06 From: Maynard Mass USA Member No.: 1241 |
Doug,
The graph came from www.NWRA.com (Northwest Research Associates). They are first rate consultants, scientists, -etc. http://www.nwra.com/spawx/ssne-cycle2324.html -------------------- CLA CLL
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Dec 31 2010, 04:59 AM
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
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Dec 31 2010, 10:01 PM
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Member Group: Members Posts: 259 Joined: 23-January 05 From: Seattle, WA Member No.: 156 |
Note that none of the curves are observations - they're all calculated. So the mystery is just what is the calculation?
From their web page: QUOTE This plot provides a look at the progression of the NWRA effective smoothed sunspot number (SSNe) for solar cycle 23 and the start of cycle 24. The heavy solid curve is the smoothed SSNe (centered 13-month average), the light solid curve is the monthly average SSNe, and the dotted curve is a sunspot number calculated from the smoothed F10.7 solar flux. The foF2 and 10.7cm solar flux data used in these calculations were obtained from the NOAA SWPC. Please note that the SSNe values plotted here were calculated in near real-time from a limited data set. If you are interested in post-analysis SSNe values calculated from a more representative data set, please contact NWRA. |
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Lo-Fi Version | Time is now: 4th May 2024 - 03:54 AM |
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