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3 Responses to “About”

  1. Eco-geek Says:

    Leif,

    I just tried to post this on WUWT and thought you/ the world might be interested. I am not well enough to do the suggested analysis myself but I would dearly love it if somebody would tell me this is a load of bunkum (and why) and stop me getting the rust off Maxwell’s equations.

    Eco-geek

    Landscheidt was of the opinion that there was a hidden mechanism by which heat was coupled into the first few hundred feet of the oceans which buffered global temperatures through the minima of the 11 year sunspot cycle. While Svalgaard’s work on cosmic rays and cloud formation could provide a partial explanation another mechanism does exist which became apparent about the time of Landscheidt’s death which was around 2004. I do not know if this has been taken up by anyone yet but has to be worth looking into:

    While it is certainly the case that electrical currents in the sun are magnetically coupled via the Sun’s and Earth’s magnetic fields into the Earth’s oceans with a skin depth of around 250 metres (i.e. 1/e of the currents are dissipated by that depth) the coronal (Spitzer) resistivity is badly matched to that of sea water. However, less than a decade ago it was discovered that the coronal resistivity associated with lateral solar flare currents was not the Spitzer constant it was thought to be and in fact is closely matched to that of sea water. Quantification apart we here have a secondary mechanism by which solar activity employs the heliosphere to warm up the planet and supply the missing heat that Landscheidt was looking for.

    Critical comments, reasoned dismissal extremely welcome. It is just an idea that needs some numbers – and it’s not trivial.

    • Eco-geek Says:

      OK something went wrong. My first reply to me seems to have gone missing so I will just repeat out of order:

      The resistivity difference is 10^6 orders of magnitude. Direct measurements of induced currents are rarely done so the obvious experiment has probably not been done either.

      Hope this doesn’t go wrong….

  2. Neil Jordan Says:

    From your comments about things solar at WUWT, I received this notice of a new publication that you might be interested in:
    http://willbell.com/almanacs/AstroTables.htm
    Part 6: Sunspot Activity 1749–2014

    In a series of tables the following is provided: Yearly means of the definitive Zürich sunspot numbers, from 1749 to 2014. Monthly means of the definitive Zürich sunspot numbers, from January 1749 to December 2014 and, for the same period, the smoothed monthly means, based on the definitive Zürich sunspot numbers, but calculated by means of the formula advocated by J. Meeus (Ciel et Terre, Vol. 74, 445-449; November-December 1958). In this formula, a greater weight is given to the central months. The epochs of maxima and minima of the sunspot activity are presented to the nearest tenth of a year, as calculated by the method used at the Swiss Federal Observatory. The same epochs, but deduced from the data of by J. Meeus considering the month having the highest (or lowest) smoothed mean as the epoch of the sunspot maximum (or minimum). The corresponding smoothed means are also given; the month(s) with the highest or lowest monthly mean. The monthly and yearly numbers of spotless days, that is, days with R = 0, in the period 1850 to 2014. For the years not mentioned in the table, there were no spotless days. Finally, the dates of the beginning of the Sun’s synodic rotations, as seen from the Earth, from A.D. 1981 to 2040, to the nearest 0.01 day (Universal Time).

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