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To: Star Traveler
No ... at the most, I think it’s a “Maunder Minimum” type of “Little Ice Age”

It's currently looking more like a Dalton Minimum (where the sunspot figure peaked around 60 in the early 1800's, where we had "The Year Without a Summer") than a Maunder Minimum (where sunspots disappeared entirely for decades and we had the Little Ice Age).

80 posted on 03/09/2013 12:14:02 PM PST by PapaBear3625 (You don't notice it's a police state until the police come for you.)
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To: PapaBear3625
Here's what I'm talking about - the year 2015!

Livingston and Penn paper: “Sunspots may vanish by 2015″.

Abstract: We have observed spectroscopic changes in temperature sensitive molecular lines, in the magnetic splitting of an Fe I line, and in the continuum brightness of over 1000 sunspot umbrae from 1990-2005. All three measurements show consistent trends in which the darkest parts of the sunspot umbra have become warmer (45K per year) and their magnetic field strengths have decreased (77 Gauss per year), independently of the normal 11-year sunspot cycle. A linear extrapolation of these trends suggests that FEW SUNSPOTS WILL BE VISIBLE AFTER 2015.

Sunspot umbral magnetic fields also show systematic temporal changes during the observing period as demonstrated by the sample spectra in Figure 1. The infrared Fe 1564.8 nm is a favorable field diagnostic since the line strength changes less than a factor of two between the photosphere and spot umbra and the magnetic Zeeman splitting is fully resolved for all sunspot umbrae. In a histogram plot of the distribution of the umbral magnetic fields that we observe, 1500 Gauss is the smallest value measured. Below this value photospheric magnetic fields do not produce perceptible darkening.

Figure 3 presents the magnetic fields smoothed by a 12 point running mean from 1998 to 2005. The ordinate is chosen so that 1500 G is the minimum. A linear fit to the changing magnetic field produces a slope of 77 Gauss per year, and intercepts the abscissa at 2015. IF THE PRESENT TREND CONTINUES, THIS DATE IS WHEN SUNSPOTS WILL DISAPPEAR FROM THE SOLAR SURFACE.

http://wattsupwiththat.com/2008/06/02/livingston-and-penn-paper-sunspots-may-vanish-by-2015/

82 posted on 03/09/2013 6:02:43 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
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