Quiet Sun: Who Saw it Coming?
The Sun has hit a 100-year low in sunspot activity, a 50-year low in solar wind pressure and a 55-year low in radio emissions. Who predicted this would happen? A couple of papers spring to mind:
Fairbridge, R. W. and Shirley, J. H. (1987): Prolonged minima and the 179-year cycle of the solar inertial motion. Solar Physics 110, 191-220.
Abstract:
The authors employ the JPL long ephemeris DE-102 to study the inertial motion of the Sun for the period A.D.760 – 2100. Defining solar orbits with reference to the Sun’s successive close approaches to the solar system barycenter, occurring at mean intervals of 19.86 yr, they find simple relationships linking the inertial orientation of the solar orbit and the amplitude of the precessional rotation of the orbit with the occurrence of the principal prolonged solar activity minima of the current millenium (the Wolf, Spörer, and Maunder minima). The progression of the inertial orientation parameter is controlled by the 900-yr “great inequality” of the motion of Jupiter and Saturn, while the precessional rotation parameter is linked with the 179-yr cycle of the solar inertial motion previously identified by Jose (1965). A new prolonged minimum of solar activity may be imminent.
Landscheidt T. (2003): New Little Ice Age Instead of Global Warming? Energy & Environment, Volume 14, Numbers 2-3, 1 May 2003 , pp. 327-350(24)
Abstract:
Analysis of the sun’s varying activity in the last two millennia indicates that contrary to the IPCC’s speculation about man-made global warming as high as 5.8°C within the next hundred years, a long period of cool climate with its coldest phase around 2030 is to be expected. It is shown that minima in the secular Gleissberg cycle of solar activity, coinciding with periods of cool climate on Earth, are consistently linked to an 83-year cycle in the change of the rotary force driving the sun’s oscillatory motion about the centre of mass of the solar system. As the future course of this cycle and its amplitudes can be computed, it can be seen that the Gleissberg minimum around 2030 and another one around 2200 will be of the Maunder minimum type accompanied by severe cooling on Earth. This forecast should prove ’skilful’ as other long-range forecasts of climate phenomena, based on cycles in the sun’s orbital motion, have turned out correct, as for instance the prediction of the last three El Niños years before the respective event.
Outlook:
“We need not wait until 2030 to see whether the forecast of the next deep Gleissberg minimum is correct. A declining trend in solar activity and global temperature should become manifest long before the deepest point in the development. The current 11-year sunspot cycle 23 with its considerably weaker activity seems to be a first indication of the new trend, especially as it was predicted on the basis of solar motion cycles two decades ago. As to temperature, only El Nino periods should interrupt the downward trend, but even El Ninos should become less frequent and strong. The outcome of this further long-range climate forecast solely based on solar activity may be considered to be a touchstone of the IPCC’s hypothesis of man-made global warming.”
April 28th, 2009 at 3:58 am
Climate Change Cycles, Galactic Vacuum Density Waves, and the Orbital Periods of the Planets
Dr. Gerhard Löbert
Physicist. Recipient of The Needle of Honor of German Aeronautics.
Conveyor of a super-Einsteinian theory of gravitation that not only covers the well-known Einstein effects but also explains, among many other post-Einstein-effects, the Sun-Earth-Connection and the true cause of the global climate changes.
Abstract: In a previous Note (see Ref.) it was shown that climate change is driven by solar activity which in turn is caused by the action of galactic vacuum density waves on the core of the Sun. Irrefutable proof of the existence of these super-Einsteinian waves is given by the extremely close correlation between the changes in the mean global surface temperature and the small changes in the rotational velocity of the Earth – two physically unrelated geophysical quantities – in the past 150 years (see Fig. 2.2 of http://www.fao.org/DOCREP/005/Y2787E/y2787e03.htm or Ref.). In the present Note it is shown that the orbital periods of the planets provide further evidence.
In an excellent paper by the late Dr. Theodor Landscheidt (see http://www.schulphysik.de/klima/landscheidt/iceage.htm) it was shown that the Sun’s Gleissberg activity cycles are closely correlated with the oscillations of the Sun around the center of mass of the solar system. The first and second space derivatives of the gravitational potential of the planets in the vicinity of the Sun are, however, so minute that it cannot be envisaged how the extremely slow motion of the Sun about the center of mass of the solar system could physically influence the processes within the Sun. It is much more likely that a common external agent is driving both the Gleissberg cycle and the related oscillatory barycentric motion of the Sun.
The small motion of the Sun is, of course, determined, almost entirely, by the motion of the large planets Jupiter, Saturn, Uranus, and Neptune that revolve around the Sun with periods of 11.87, 29.63, 84.67, and 165.49 years respectively. Note that the sunspot cycle has a mean period of 11.07 years (see T. Niroma in http://www.personal.inet.fi/tiede/tilmari/sunspot4.html) and in my previous Note “A Compilation of the Arguments that Irrefutably Prove that Climate Change is driven by Solar Activity and not by CO2 Emission” of March 6, 2008 (see Ref.), I pointed out that the mean surface temperature of the Earth is changing in a quasi-periodic manner with a mean period of 70 years, approximately. If we stipulate for the moment that there exists – in addition to the 70-years wave – a galactic vacuum density wave of 11.07 years period that is driving the sunspot cycle, then the addition of both waves leads to a periodic amplitude modulation with a period of 2/(1/11.07 – 1/70) = 26.3 years.
If two galactic gravitational wave trains of 11.07 and 70 years period were to pass through the solar system, the gravitational action of these waves on the revolving planets would slowly relocate these celestial bodies until the orbital periods were close to 11.07, 26.3, and 70 years, the periods given by the combined wave train. The orbital periods of Jupiter, Saturn, and Uranus are 7%, 13%, and 20% higher than these values. A close lock-in cannot be expected because of the gravitational actions of the neighboring planets and because of the large variability of the periods of the vacuum density wave trains (see the large variability of the sunspot and surface temperature cycles).
If one considers all of the documented sunspot cycles, the mean Gleissberg cycle length increases to 78.5 years (see T. Niroma). With this value, the orbital period excess of Uranus reduces from 20% to 7%. Note also that the orbital period of Neptune is 5% larger than 2 times the mean Gleissberg period and that of Pluto is 7% larger than 3 times Gleissberg.
Now to the remaining planets. The following table shows the ratio of the mean sunspot cycle period of 11.07 years to the planet orbital period.
Mars = 6 – 0.11 Earth = 11 + 0.07
Venus = 18 – 0.01 Mercury = 46 – 0.04
With an average error of 6% of an orbital period, the orbital periods are whole-number fractions of the mean sunspot cycle period.
As can be seen, the 11.07 years and 78.5 years galactic wave trains have brought good order into the Solar System. The degree of order increases with the number of orbital revolutions per million years.
In my opinion, the orbital periods of the planets provide — in addition to the extremely close temperature-rotation-correlation — further evidence for the existence of galactic vacuum density waves with mean long-term periods of 11.07 and 78.5 years.
Ref.: http://www.icecap.us/images/uploads/Lobert_on_CO2.pdf