Ian Wilson’s Evolving Research.

Ian Wilson has been slowly developing his theory on spin orbit coupling whereby the planets affect the rotation rate of the Sun. Ian is an Australian Astrophysicist that has published many papers and also posts his theories on his blog.

http://astroclimateconnection.blogspot.com/

Recently Ian has been producing new data that supports a tidal and gravity function that correlates with the sunspot cycle length observed over the past 400 years.

The theory is based on Jupiter’s gravity pulling and pushing on the solar tidal bulge created by Earth and Venus. If the conditions are right this could slow or speed up the solar rotation rate over the solar cycle. The rotation rate of the Sun is difficult to measure, but the research that is available suggests there is indeed a variance in solar rotation when comparing the up and down side of a solar cycle.

When looking at the tidal data it can be seen it correlates well with the sunspot cycle length record. This was also noted by researcher Desmoulins (below) some time ago where he graphed the “most aligned days” of Jupiter/Earth and Venus.

Ian has added much more detail to this research and also provides mechanisms and formulas to back up his research. The time scales have also been increased with Ian going back to 1600 and forecasting out to 2030. One outstanding aspect of the research is that the cycles mainly stay in phase but occasionally go out of phase slightly but then return to full synchrony. This is substantial and suggests strongly that the two cycles are linked.

The next aspect is that the cycles go out of phase just before or around the time of grand minimum and then return to synchronization when the solar cycles return to normal. So determining what controls this out of phasing might give us some insight into what controls grand minima along with better solar cycle forecasting. I believe this is where Ian’s research merges with mine as during times of phase difference in every case we also see a green arrow on Carl’s graph. This is the AMP event where the solar angular momentum is perturbed. Below is a new version of Carl’s graph that slightly amplifies the AMP events and shows good matching with Ian’s and Desmoulin’s work.

Click on the image for a full sized view.

The AMP events are induced by the four outer planets which poses a problem, the times of phase difference on Ian’s graphs that also line up with AMP events are from different background mechanism’s. Ian’s work is based on gravity and tides and by doing the maths we can see that Jupiter is the last planet which could have a tidal effect on the Sun. The AMP events are a measure of angular momentum of the Sun as it cycles around the centre of mass of the solar system (SSB) where the most outer planets are responsible for the AMP event. Perhaps the AMP event also has an impact on solar cycle length because of the disruption to the solar dynamo? I would be interested to expand on this issue with Ian.

Also of interest is the forecast for the next few cycles. Ian’s data and predictions agree with my own and show that SC24/25 will be grand minimum type cycles and then a recovery is expected. This is clearly seen in Ian’s graphs with the re aligning of the two phases and my own research shows no further strong AMP events after SC24. This puts us in contention with Landscheidt who predicted a supersectular minimum (grand minimum) to be at its deepest at 2030 and be a Maunder type event. Although incredibly important I believe Landscheidt’s work is now shown to be off the mark as he unbelievably missed the all important AMP event. There are also many scientists and others around the world getting on the band wagon that are also predicting a Maunder type event….I feel Ian and I are on the Mark.

Please visit Ian’s Blog listed at the head of this article, there is a host of information and research that is breaking new ground.

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Some Pioneering Facts…

Solar Angular Momentum graph produced by the late Carl Smith 2007. Annotations and green arrows added.

Planetary influence over solar cycle output and solar grand minima has been theorized since the early days of Rudolf Wolf.  Jose was the first to gain traction in 1965 and was then followed by major players Landscheidt, Fairbridge and Charvàtovà who published many papers but were never really taken seriously by the scientific public at large. All the aforementioned authors have made solid contributions to this valuable area of research and without this base knowledge I am sure the late Carl Smith would never have had the motivation to produce his soon to be famous (I believe) solar angular momentum graph (2007).

In my opinion Charvàtovà had the most to offer where she picked up on the Jose SIM diagram that displayed the irregular orbit pattern of the Sun around the solar system barycentre (SSB). She noticed that during times of grand minima the orbit pattern changed which is a major break through and now with the added data from Carl we can now understand and quantify this change, but more on that later.

Jose believed there was a recurring 179 year pattern that controlled the Suns orbital path around the SSB, this was the original discovery that recognized the returning SIM pattern that controls our Sun. While he was in the ballpark we now know through Carl’s graph and JPL data that this pattern is indeed very loose but none the less there is a recurring occurrence of grand minima over the Holocene that centres around the synodic period of Uranus and Neptune (171.4 years) but this can only be used as a rough guide and is not capable of predicting grand minima down to the solar cycle like we can today.

Landscheidt wrote many papers and a book which covered planetary harmonics and their interconnection with solar and Earth functions which included ENSO, atmospheric teleconnections, lake levels, fish and animal populations as well as the stock market. His most famous prediction was for a solar grand minimum between 1990 and 2070 which would peak at 2030 in his book Sun-Earth-Man (1989). Landscheidt used one single dataset to produce this forecast which follows the solar torque readings that result from the changing solar orbit shape directly influenced by the planet positions. Once again he was in the ball park but I believe through Carl’s graph we can now drill down much further to reveal a far higher level of accuracy when looking at each solar cycle, when we do this Landscheidt’s predictions I think will prove to be out of place. Below are two graphs that Landscheidt used to form his prediction.

Taken form Sun-Earth-Man pg 78 showing the torque curve that Landscheidt used for his prediction. The Landscheidt torque curves vary wildly from the standard AM curves. Note there is no torque extrema during the Little Ice Age. Click for a larger view.

The following is the excerpt from his book where his prediction is first noted.

“When subsets are  formed,  the results  prove  to be homogeneous.  The torque wave
points  to  a  secular sunspot  minimum past 1990.
The  extrema in  the  secular  wave of  IOT  can  be taken to constitute  a  smoothed
supersecular wave with  a  quasi-period of 391  years.  This  long wave points to
an  imminent  supersecular  sunspot  minimum  about 2030.  There  are
indications  that  secular  and  supersecular  sunspot  minima are  related  to
variations in  climate. Thus a  prolonged period of  colder climate is about to be
initiated  by the  secular minimum past  1990, will reach its  deepest point around
the  supersecular minimum  in 2030, and  come to an end  about 2070. “

In a later paper Landscheidt uses a different torque graph to reinforce his 2030 prediction but now moves away from the 1990 prediction which of course did not occur. The following is taken from a comment I published 3 years ago on this site.

Here is the original graph that Landscheidt used in his predicted 1990 and 2030 grand minimum. The red dots highlighting those years. Also included is his original text showing his reasoning. The level of detail between his data and Carl’s is many orders different, but you can see the general trend in the past followed roughly by grand minima. When the AM or torque dips below the dotted line there is a solar slowdown, but he is just picking up markers that occur around the same time and not seeing the actual driver. Note that Landscheidt predicts this grand minimum to be of a similar strength and timing as the Maunder….I wonder what he would think now, if he were still with us today?

Fig. 11:Time series of the unsmoothed extrema in the change of the sun’s orbital rotary force dt for the years 1000 – 2250. Each time when the amplitude of a negative extremum goes below a low threshold, indicated by a dashed horizontal line, a period of exceptionally weak solar activity is observed. Two consecutive negative extrema transgressing the threshold indicate grand minima like the Maunder minimum (around 1670), the Spoerer  minimum (around 1490), the Wolf minimum (around 1320), and the Norman minimum (around 1010), whereas a single extremum below the threshold goes along with events of the Dalton minimum type (around 1810 and 1170) not as severe as grand minima. So the Gleissberg minima around 2030 and 2200 should be of the Maunder minimum type. As climate is closely linked to the sun’s activity, conditions around 2030 and 2200 should approach those of the nadir of the Little Ice Age around 1670. As explained in the text, the IPCC’s hypothesis of man-made global warming is not in the way of this forecast exclusively based on the sun’s eruptional activity. Outstanding positive extrema have a similar function as to exceptionally warm periods like the Medieval Optimum and the modern warm period.

Landscheidt is using torque extrema that occur when Saturn/Uranus and Neptune line up with Jupiter opposing. During this event the Sun returns very close to the SSB (red crosshairs).

This is where the Landscheidt marker is close to where grand minima occur but unfortunately is very vague. The marker can only occur near a Uranus/Neptune conjunction which is also what is required to trigger the angular momentum perturbations (AMP event) shown via the green arrows in Carl’s graph, but the conjunction can be decades away from the AMP event and can produce erroneous predictions. The current event should be short and weak like the Dalton Minimum and the 2200 event will also be weak if we follow Carl’s graph which has successfully predicted the current grand minimum and hindcast grand minima throughout the Holocene.


Solar cycle prediction based on angular momentum (AM). AM is important for overall cycle strength and solar grand minima.

There is much research on the AMP events on this website and I suggest a good place to start is the “Published Paper” link at the head of this site.

Further evidence of Landscheidt’s prediction of a 1990 solar grand minimum is observed in his 1981 paper “Swinging Sun, 79-Year Cycle, and Climatic Change” where he states;

“As to practice, it seems possible now to calculate the date, the phase, and the amplitude of long-term solar variations in past and future. It is no longer necessary to recur to ultralong cycles with a duration of hundreds or thousands of years. The irregular distribution of the rare impulses of the torque of great strength offers a simpler explanation of ultralong-term variations. Fig. 4 shows the future course of the 79 YC. The next negative RDM will be released in 1990. It meets the criterion Cn2. The amplitude can be assessed by the Sit-value which is equal to| 4.23| U. The minimum about 1811 reached only 2It =| 4.07| U. Relatively small differences in the 2It-data lead to relatively great differences in the amplitudes. This can be seen from Table 2. Thus it may be expected that the negative RDM 1990 will be distinctly more pronounced than the 1811-minimum……..It is to be expected that the climatic conditions in at least three decades after 1990 will be more severe than after 1811 as corresponds to the ratio 2 lt = |4.071 U(RDM 1811) toSlt =|4.23| U (RDM 1990) compared with 2 |t = l 4.43| U (RDM 1671)”

Of interest Fairbanks predicted a 1990 solar grand minimum using the same zero crossing method and Jose cycle as Landscheidt. Below is an excerpt from Fairbridge’s 1987 paper.

I think it is pretty clear that although Landscheidt and Fairbridge are on the right track their failed predictions show there is something missing in their base theory. It is also interesting that Landscheidt did have similar data that is presented in Carl’s graph but he failed to recognize the significance. In his 1989 book on pg 16 he states:

“As has  been shown  already,  the Sun’s surface is  a boundary in terms  of  the
morphology of  nonlinear  dynamic  systems.  Thus,  it  makes  sense  that  the
major instability  events starting about  1789,  1823,  and  1867, and  later about
1933 and  1968, occurred  just  when the centre of  mass remained in or near  the
Sun’s  surface for several years.
When the Sun approaches the centre  of  mass (CM),  or recedes from it, there
is  a phase when CM  passes through  the Sun’s  surface. Usually, this is  a  fast
passage,  as the  line  of  motion is  steeply inclined  to the  surface. There  are  rare
instances,  however, when the  inclination  IS  very  weak,  CM  runs nearly
parallel with the Sun’s  surface,  or oscillates  about  it  so that  CM  remains  near
the  surface for several years.  Fixing  the  epochs of  start and end of  such periods
involves  some  arbitrariness.  The  following  definition is in  accordance with
observation  and  meets all requirements  of  practice:  major solar  instability
events  occur  when the centre  of  mass remains continually within the  range
0.9 –  1.1 solar radii  for  2.5 to 8.5 years,  and  additionally within the  range  0.8
–  1.2  solar radii for  5.5 to  10 years.  The  giant planet  Jupiter is  again involved.
In most cases major instability events  are released  when Jupiter is stationary
near CM.
The  first, sharper criterion yields the  following periods:
1789.7 –  1793.1  (3.4  yr)
1823.6 –  1828.4  (4.8  yr)
1867.6 –  1870.2  (2.6  yr)
1933.8 –  1937.3  (3.5  yr)
1968.4 –  1972.6  (4.2  yr)
2002.8  –  2011.0  (8.3  yr)
The  first decimal is  only given to relate  the results rather  exactly  to the  aiterion.
The  epochs of  the onset  and  the  end  of  the  phenomenon  cannot  be assessed
with such precision. The  second, weaker criterion yields periods which begin
earlier:

1784.7 –  1794.0  (9.3 yr)
1823.0 –  1832.8  (9.8  yr)
1864.5  –  1870.9  (6.4 yr)
1932.5 –  2938.3  (5.8 yr)
1967.3 –  1973.3  (6.0  yr)
2002.2 –  2011.8  (9.6  yr)
Henceforth,  the  starting  periods  1789,  1823  etc.  of  the  first  criterion  will  be
quoted.
In case  of  major instability  events  that  affect  the  Sun’s  surface and  the
incidence of  features  of  solar activity displaying in this  thin, sensitive layer
the  instability seems  to spread out in the  planetary system and seize  all events
in time series
that are  connected with the  Sun’s activity.”

When Landscheidt talks of major instability events he is NOT referring to solar output, but instead he is using this event as a place in time where phase reversals occur. ie where he uses the minima instead of maxima of extrema in the particular dataset he is employing. The major instability events according to Landscheidt affect rise and fall of animal populations, economic turning points, stock prices, interest rates, global periods of general instability and even human creativity. Landscheidt in later papers moves away from these less than scientific statements but at no point associates these events with reduced solar output.

And in another graph I highlighted 3 years ago:

I found another graph that Landscheidt uses in “Solar Eruptions Linked to North Atlantic Oscillations” that shows that he DID have access to information at a more precise level. Here he shows the “camel humps” like we see in Carl’s AM graph but this graph is based on torque measurements (which are similar to AM). Landscheidt calls these perturbations PTC (perturbed torque curve) and he states that they occur every 35.8 years, and are responsible for “phase reversals”. My research and Carl’s suggest the PTC type disturbance does not occur on a repeating pattern, but only when Neptune & Uranus are in or near conjunction. This I think is further evidence that Landschiedt perhaps missed this vital piece of the puzzle???? 

Landscheidt used many planetary cycles to compare with solar and earth cycles. In particular he employed the alignment between the Sun/SSB and Jupiter. What he found was that the correlations went out of phase over time but invoked a phase reversal so that he could use both minima and maxima of a given cycle. He uses the PTC event (major stability event) which is the same as the green arrows on Carl’s graph as a position for phase reversal but completely misses that these events are what correlate with all solar slowdowns and the altered solar path that Charvàtovà made her name on. He incredibly was so close, but unfortunately no cigar.

In a recent article Roger Tattersall (tallbloke’s talkshop) on his blog that is predominately focused on planetary theory makes the mistake of stating that Landschiedt uses the PTC type or major instability events to predict solar slowdowns, this is obviously incorrect. I have tried to inform him of his error but to date he is reluctant to change his incorrect and misleading views.

This is where we pick up on Charvàtovà. In the 1988 she produced a paper “The Relations Between Solar Motion and Solar Variability” showing that grand minima occur when the solar orbit is disordered over longer periods. All past grand minima have shown a correlation with this disordered pattern about the SSB so she is definitely on the ball but sadly does not continue her research into the ultimate reasons for the disordered orbit. She hints that the conjunction of Uranus and Neptune are at the centre of grand minima epochs like Landscheidt but fails to drill down to the underlying causes or how each disordered orbit can be quantified in relation to the strength of a solar slowdown.

In 1988 she predicts a period of lower sunspot activity and longer cycles from 2000-2030 and the epoch will be more Dalton like which is more accurate than Landscheidt (if my predictions pan out) but she does not see the planet position of Jupiter/Uranus/Neptune with Saturn opposing that individually creates the disordered solar pattern. Her later papers and slide shows also display this omission. Her 2000 paper describes a period of disordered orbit from 1985-2030 but she missed the disordered orbit at 1970 which coincides with the low solar cycle SC20.

The above planet sequence is the main driver of the disordered pattern that happens either side of the U/N conjunction. Below is an image of how the solar orbit varies (purple line)

The green arrows on Carl’s graph align with the above planetary position and the altered purple orbit path. The main disruption only occurs during the inner loop but looking at the shape of the loop alone does not give enough detail to distinguish a low cycle from a grand minimum type cycle. The altered path of 1970 does not look all that different to the current path but there should be quite some difference between SC20 and SC24 in terms of solar output. This is where Carl’s graph comes in and we can quantify the AMP event that happens at the green arrows. I have tried to contact Dr. Charvàtovà without success, but I am sure she would be interested to see the relevance of Carl’s graph in relation to her work.

Carl was not aware of his discovery when he created the graph and sadly when I pointed it out to him he was happy but had other matters on his mind, as you would expect when suffering from terminal cancer. Carl rewarded me by passing on his blog to me and Carl’s brother David has sponsored me in the hope of furthering Carl’s work. I consider myself lucky to have stumbled on Carl’s graph which I will endeavour to push as the rosetta stone of solar science.

Unfortunately todate no one in the science arena has picked up on this discovery which was first published online in 2008, the topic is banned at WUWT (the largest science forum on the web) and so far has been largely ignored by planetary forums including Tallbloke’s Talkshop. Hopefully this will change in the future when the large amount of information is gradually absorbed and the predicted solar grand minimum takes hold.