Showing posts with label Solar Cycle. Show all posts
Showing posts with label Solar Cycle. Show all posts

Thursday, March 21, 2024

Sunspots, Lunar Cycles and Weather Cycles | Louis M. Thompson

The occurrence of an 18- to 20-year cycle in weather in the U.S. Midwest is no longer controversial. The controversial issue is the cause. This article will present both sides of the issue, and will indicate why we will know more about the cause after the 1990s.


[...] The sunspot cycle has been associated with the “20-year drought cycle” in the western U.S. since about 1909, when A.E. Douglass started publishing his tree-ring studies. This scientist became so well known that he was able to establish the Laboratory for Tree Ring Research in Tuscon, Arizona, in 1938. 
 

[...] The sunspot cycle has averaged about 11 years since 1800. As the sun rotates on its axis, it makes a complete turn in about 27 days. Large and persistent spots appear to move from left to right for about two weeks, disappear, and return after about two weeks. The leading edges of spots or clusters of spots have a negative charge in one 11-year cycle and a positive charge in the next cycle. Hence, the term “double sunspot cycle.”


The conventional wisdom is that the drought cycle of about 20 years occurs near the end of the negative cycle and at the time of low solar activity. The drought periods of the 1910s, 1930s, 1950s, and 1970s occurred at the end of the negative cycle. The drought periods did not consistently follow that pattern from 1800 to 1900, although the severe droughts of the 1820s and 1840s occurred at the end of the negative cycle.

Quoted from:
Louis M. Thompson (1989) - Sunspots and Lunar Cycles: Their Possible Relation to Weather Cycles.
In: Cycles, September/October 1989, Foundation for the Study of Cycles.
 
See also:
William Stanley Jevons (1875) - Sunspots and the Price of Corn and Wheat.

Monday, February 26, 2024

Tuesday, December 12, 2023

Sensitive Degrees of the Sun for the NYSE in 2024 | Jack Gillen


 
Date Sun's Longitude Position Effect on US Stock Indexes
     
2023 12 08 (Fri) = SUN @ 16 SAG = 256 degrees negative = low
2023 12 12 (Tue) = SUN @ 20 SAG = 260 degrees negative
2023 12 16 (Sat) = SUN @ 24 SAG = 264 degrees positive = high
2023 12 28 (Thu) = SUN @ 6 CAP = 276 degrees positive
2024 01 02 (Tue) = SUN @ 11 CAP = 281 degrees positive
2024 01 06 (Sat) = SUN @ 16 CAP = 286 degrees negative
2024 01 19 (Fri) = SUN @ 29 CAP = 299 degrees negative
2024 01 30 (Tue) = SUN @ 10 AQU = 310 degrees positive
2024 02 03 (Sat) = SUN @ 14 AQU = 314 degrees positive
2024 02 06 (Tue) = SUN @ 17 AQU = 317 degrees negative
2024 02 18 (Sun) = SUN @ 29 AQU = 329 degrees negative
2024 02 23 (Fri) = SUN @ 4 PIS = 334 degrees negative
2024 02 24 (Sat) = SUN @ 5 PIS = 335 degrees negative
2024 03 03 (Sun) = SUN @ 13 PIS = 343 degrees positive
2024 03 11 (Mon) = SUN @ 21 PIS = 351 degrees positive
2024 03 24 (Sun) = SUN @ 4 ARI = 4 degrees positive
2024 03 31 (Sun) = SUN @ 11 ARI = 11 degrees positive
2024 04 07 (Sun) = SUN @ 18 ARI = 18 degrees negative
2024 04 13 (Sat) = SUN @ 24 ARI = 24 degrees negative
2024 04 26 (Fri) = SUN @ 6 TAU = 36 degrees negative
2024 05 01 (Wed) = SUN @ 12 TAU = 42 degrees neutral
2024 05 08 (Wed) = SUN @ 18 TAU = 48 degrees negative
2024 05 19 (Sun) = SUN @ 19 TAU = 59 degrees neutral
2024 05 25 (Sat) = SUN @ 5 GEM = 65 degrees negative
2024 06 06 (Thu) = SUN @ 16 GEM = 76 degrees neutral
2024 06 07 (Fri) = SUN @ 17 GEM = 77 degrees negative
2024 06 08 (Sat) = SUN @ 18 GEM = 78 degrees neutral
2024 06 29 (Sat) = SUN @ 8 CAN = 98 degrees positive
2024 07 04 (Thu) = SUN @ 13 CAN = 103 degrees negative
2024 07 07 (Sun) = SUN @ 16 CAN = 106 degrees positive
2024 07 10 (Wed) = SUN @ 18 CAN = 108 degrees negative
2024 07 24 (Wed) = SUN @ 2 LEO = 122 degrees negative
2024 07 29 (Mon) = SUN @ 6 LEO = 126 degrees positive
2024 08 09 (Fri) = SUN @ 17 LEO = 137 degrees negative
2024 08 10 (Sat) = SUN @ 18 LEO = 138 degrees positive
2024 09 02 (Mon) = SUN @ 10 VIR = 160 degrees negative
2024 09 04 (Wed) = SUN @ 12 VIR = 162 degrees positive
2024 09 05 (Thu) = SUN @ 13 VIR = 163 degrees negative
2024 09 20 (Fri) = SUN @ 28 VIR = 178 degrees positive
2024 09 24 (Tue) = SUN @ 2 LIB = 182 degrees negative
2024 10 07 (Mon) = SUN @ 14 LIB = 194 degrees negative
2024 10 14 (Mon) = SUN @ 21 LIB = 201 degrees positive
2024 10 22 (Tue) = SUN @ 29 LIB = 209 degrees positive
2024 10 25 (Fri) = SUN @ 2 SCO = 212 degrees negative
2024 10 27 (Sun) = SUN @ 4 SCO = 214 degrees negative
2024 11 03 (Sun) = SUN @ 11 SCO = 221 degrees positive
2024 11 21 (Thu) = SUN @ 29 SCO = 239 degrees positive
2024 11 25 (Mon) = SUN @ 3 SAG = 243 degrees positive
2024 12 08 (Sun) = SUN @ 16 SAG = 256 degrees negative
2024 12 12 (Thu) = SUN @ 20 SAG = 260 degrees negative
2024 12 15 (Sun) = SUN @ 24 SAG = 264 degrees positive
2024 12 27 (Fri) = SUN @ 6 CAP = 276 degrees positive
2025 01 01 (Wed) = SUN @ 11 CAP = 281 degrees positive
2025 01 06 (Mon) = SUN @ 16 CAP = 286 degrees negative
2025 01 19 (Sun) = SUN @ 29 CAP = 299 degrees negative
2025 01 30 (Thu) = SUN @ 10 AQU = 310 degrees positive
2025 02 03 (Mon) = SUN @ 14 AQU = 314 degrees positive
 
 
» The Sun's position by itself in relation to the stock market can show you trends that are more or less active for each year,
as the sun degrees are generally fixed. They fall on about the same date every year. 
So this is why some periods of the year would be more of a pattern. «
 
Quoted from:

Friday, December 8, 2023

Jack Gillen's Sensitive Degrees of the Sun | December 2023

 
» The Sun's position by itself in relation to the stock market can show you trends that are more or less active for each year,
as the sun degrees are generally fixed. They fall on about the same date every year. 
So this is why some periods of the year would be more of a pattern. «
 
Quoted from:
 
2023 12 08 (Fri) = SUN @ 16° SAG
2023 12 12 (Tue) = SUN @ 20° SAG = New Moon
2023 12 16 (Sat) = SUN @ 24° SAG
2023 12 28 (Thu) = SUN @ 06° CAP
2024 01 02 (Tue) = Sun @ 11° CAP 

 Solar Ephemeris.

Thursday, October 20, 2022

Physical Factors of the Historical Process | Alexander Chizhevsky

In 1924 Russian scientist Alexander Chizhevsky advanced a theory claiming that the solar activity cycles affected all of human history. He drew insight from the striking observation that two Russian revolutions of the early XX century (in 1905-07 and 1917) and several major European revolutions of the XIX century (in 1830, 1848, and 1871) occurred in the years of maximum solar activity. 
 

To justify his conviction, Chizhevsky scrutinized the available sunspot records and solar observations comparing them to riots, revolutions, battles and wars in Russia and 71 other countries for the period from 500 B.C. to 1922 A.D. He proposed to divide the eleven-year solar cycle into four phases:

  1. 3-year period of minimum activity (around the solar minimum) characterized by passivity and “autocratic rule”;
  2. 2-year period during which people “begin to organize” under new leaders and “one theme”;
  3. 3-year period (around the solar maximum) of “maximum excitability,” revolutions and wars;
  4. 3-year period of gradual decrease in “excitability,” until people are “apathetic.”
Chizhevsky found that a significant percent of revolutions and what he classified as “the most important historical events” involving “large numbers of people” occurred in the 3-year period around sunspot maximums. Through his further studies, Chizhevsky came to believe that correlations with the solar cycles could be found for a very diverse set of natural phenomena and human activities. In his book, he compiled a list of as many as 27 of them that supposedly fluctuated with the solar cycle, ranging from crop harvests to epidemic diseases to mortality rates. According to his studies, the periods of maximum solar activity were generally associated with negative effects such as lower harvests, intensification of diseases (including psychological ones), and higher mortality rates. However, Subsequent studies generally did not confirm the strength and scope of all the links between solar activity and various physical and social processes claimed by Chizhevsky.

Even as the link between solar activity and revolutions was not as strong as originally claimed by Chizhevsky, it appeared to be able to withstand a statistical test. In 1992 Russian scientist Putilov analyzed large samples of historical events mentioned in the chronology sections of two of the largest Soviet historical encyclopedias (numbering nearly 13,000 events in one book and 4,600 in another). He classified the events into four groups on the dimensions of “tolerance” (e.g., riot-reform) and “polarity” (e.g., civil war-external war). Putilov found that frequency and “polarity” of historical events increased in the year of the maximum of the sunspot cycle and in the next year after it, particularly when compared with the year of the minimum and the year before the minimum. The probability of revolution (the most polar and intolerant of historical events) was the highest during the maximum and the lowest in the year before a minimum of solar activity, with very high statistical significance. The results suggested that solar activity does impact historic events, particularly in the years of sunspot maximums. 
 
In Chizhevsky’s own words (translated):

Alexander Chizhevsky (1922) - The principles of modern natural science have urged me to investigate whether or not there is a correlation between the more important phenomena of nature and events in the social-historical life of mankind. In this direction, beginning in the year 1915, I have performed a number of researches, but at present I am submitting to the public only those which are directed towards determining the connection between the periodical sun-spot activity and (1) the behavior of organized human masses and (2) the universal historical process. The following facts are based upon statistics gathered by me while submitting to a minute scrutiny the history of all the peoples and states known to science, beginning with the V century B. C. and ending with the present day.

1. As soon as the sun-spot activity approaches its maximum, the number of important mass historical events, taken as a whole, increases, approaching its maximum during the sun-spot maximum and decreasing to its minimum during the epochs of the sun-spot minimum.

2. In each century the rise of the synchronic universal military and political activity on the whole of the Earth's territory is observed exactly 9 times. This circumstance enables us to reckon that a cycle of universal human activity embraces 11 years (in the arithmetical mean). The fluctuation's mean curves of the universal historical process on all the surface of the Earth during the period from V century B.C. till XX century A.D. (along the abscissa axis are marked the years, along the ordinate axis – the quantity of important historical events. Dots mark the pretelescopic and later – astronomical data of the sun-spot maximum. Hyphens mark its minimum):
 

Parallelism of the curves of sun-spot activity (below) and the universal human military-political activity (above) from 1749 till 1922:
 

3. Each cycle according to its historical psychological signs is divided into 4 parts (periods):

I. Minimum of excitability: 3 years;
II. Growth of excitability: 2 years;
III. Maximum of excitability: 3 years;
IV. Decline of excitability: 3 years;
 

The number of historical events in each cycle is distributed approximately according to the data for 500 years (XV—XX cent.) in the following manner (in the mean):

I  period: 5%;
II  period: 20%;
III  period: 60%;
IV  period: 15%.

Schematic Summary of Properties of a Complete Historiometric Cycle:


4. The course and development of each lengthy historical event is subject to fluctuations (periods of activity and inactivity) in direct dependence upon the periodical fluctuations occurring in the sun's activity. Formula: the state of predisposition of collective bodies towards action is a function of the sun-spot periodical activity.

5. Episodic leaps or rises in the sun's activity, given the existence in human societies of politico-economical and other exciting factors, are capable of calling forth a synchronic rising in human collective bodies. Formula: the rising of the sun-spot activity transforms the people's potential energy into kinetic energy.

My studies in the sphere of synthesizing historical material have enabled me to determine the following morphological law of the historical process:

6. The course of the universal historical process is composed of an uninterrupted row of cycles, occupying a period equaling in the arithmetical mean 11 years and synchronizing in the degree of its military-political activity with the sun-spot activity. Each cycle possesses the following historio-psychological peculiarities:

a. In the middle points of the cycle's course the mass activity of humanity all over the surface of the Earth, given the presence in human societies of economical, political or military exciting factors, reaches the maximum tension, manifesting itself in psycomotoric pandemics:  revolutions, insurrections, expeditions, migrations etc., creating new formations in the existence of separate states and new historical epochs in the life of humanity. It is accompanied by an integration of the masses, a full expression of their activity and a form of government consisting of a majority.
b. In the extreme points of the cycle's course the tension of the all-human military-political activity falls to the minimum, ceding the way to creative activity and is accompanied by a general decrease of military or political enthusiasm, by peace and peaceful creative work in the sphere of state organizations, international relations, science and art, with a pronounced tendency towards absolutism in the governing powers and a disintegration of the masses.

7. In correlation with the sun-spot maximum stand:

a. The dissemination of different doctrines political, religious etc., the spreading of heresies, religious riots, pilgrimages etc.
b. The appearance of social, military and religious leaders, reformists etc.
c. The formation of political, military, religious and commercial corporations, associations, unions, leagues, sects, companies etc.

8. It is impossible to overlook the fact that pathological epidemics also coincide very frequently with the sun-spot maximum periods.

9. Thus the existence of dependence between the sun-spot activity and the behavior of humanity should be considered established.

One cycle of all-human activity is taken by me for the first measuring unit of the historical process. The science concerned with investigating the historical phenomena from the above point of view I have named historiometria.

At present I am working on a plan of organizing scientific institutes for determining the influence of cosmic and geophysical factors upon the condition of the psychics of individuals and collective bodies, and devising a working method for them.

A. Chizhevsky
November, 1922; 10 Ivanovskaia st., Kaluga, Russia.

Translation:
Sergey Smelyakov (2006) - Chizhevsky's Disclosure: How the Solar Cycles Modulate the History.
 
This article was adopted from:

Wednesday, October 19, 2022

The Heartbeat of the Sun│Valentina V. Zharkova et al.

Valentina V. Zharkova (2016) - We will see it from 2020 to 2053, when the three next cycles will be of a very reduced magnetic field of the sun. Basically, what happens is these two waves, they separate into the opposite hemispheres and they will not be interacting with each other, which means that resulting magnetic field will drop dramatically nearly to zero. And this will be a similar condition like in the Maunder Minimum.
 

What will happen to the Earth remains to be seen and predicted because nobody has developed any program or any models of terrestrial response – they are based on this period when the sun has maximum activity — when the sun has these nice fluctuations, and its magnetic field [is] very strong. But we’re approaching the stage when the magnetic field of the sun is going to be very, very small. 

 
See also:
 

Sunday, June 11, 2017

Sunspot Cycle Length vs Temperature Anomaly │ Jasper Kirkby

The sunspot cycle length as a measure of the Sun's activity:
Variation during the period 1861 - 1989 of the sunspot cycle length (solid curve)
and the temperature anomaly of the Northern Hemisphere (dashed curve).
The temperature data from the IPCC.

Jasper Kirkby (1998) - The sunspot cycle length averages 11 years but has varied from 7 to 17 years, with shorter cycle lengths corresponding to a more magnetically-active Sun. A remarkably close agreement was found between the sunspot cycle length and the change in land temperature of the Northern Hemisphere in the period between 1861 and 1989 [update HERE]. The land temperature of the Northern Hemisphere was used to avoid the lag by several years of air temperatures over the oceans, due to their large heat capacity. This figure covers the period during which greenhouse gas emissions are presumed to have caused a global warming of about 0.6°C. Two features are of particular note: firstly the dip between 1945 and 1970, which cannot be explained by the steadily rising greenhouse gas emissions but seems well-matched to a decrease in the Sun's activity, and secondly the close correspondence between the two curves over this entire period, which would seem to leave little room for an additional greenhouse gas effect.

[...] The observation that warm weather seems to coincide with high sunspot counts and cool weather with low sunspot counts was made as long ago as two hundred years by the astronomer William Herschel who noticed that the price of wheat in England was lower when there were many sunspots, and higher when there were few. See also HERE  

Data: SILSO Royal Observatory of Belgium.

Sunday, April 2, 2017

The Sun’s Wobbles and the Earth’s Spiral Path

Figure 1 and Figure 2 (Enlarge)
Will J.R. Alexander et al. (2007) - Conventional illustrations show the Earth orbiting around a static Sun. This is misleading. First, the Sun wobbles through a tube of space and not along a smooth path at a constant velocity. Second, the Earth orbits the Solar System’s Center of Mass (SSCM) and not the Sun’s Center of Mass. The Earth therefore follows a spiral path as it moves through space. This is illustrated in Figure 1. (It is important to note that the scales in the figures 1 and 2 are highly compressed so that they can fit.)

The tube in the middle represents the volume of space that the Sun revolves in and is about 3.7 * 10^6 km in diameter. The ecliptic plane is at a 45° angle to the line of movement. The Earth to Sun distance (the chord length) varies, depending on where the Sun is located in the tube. While the paths of the Sun and the Earth are closely linked as they move through space, the changing relative positions result in corresponding changes in the distance between them.

Figure 2 shows the path of the combined Center of Mass of the four major planets, Jupiter, Saturn, Uranus and Neptune, relative to the SSCM for the period 1978–2006. Visualize the three-dimensional view of this figure with the orbit path spiraling towards the viewer. Starting in 1978, the orbit maintains a nearly constant distance from the SSCM. In 1985 the orbit starts moving closer to the central point occupied by the SSCM. It swings around the SSCM, reaching its closest position in 1990. It then spirals away from the SSCM until 1994. From 1995 through to 2000 there is little change in the displacement from the SSCM. From 2001 through to 2006 it makes another approach to the SSCM. As can be seen, these changes are not regular in time. They were relatively unchanged from 1979 to 1985, and again from 1995 to 2000. They changed rapidly from 1986 through to 1994, when they closely orbited the SSCM.


The Sun follows a weighted reciprocal path but its Center of Mass is much closer to the SSCM. It also accelerates and decelerates synchronously but moves in the opposite direction in order to maintain the system in equilibrium. The Sunspot minima occurred in 1986, 1996 and 2006. The compass points on the figure are for reference purposes only. Note that the Sunspot minima of 1986 and 1996 both occurred in the SW quadrant of the figure, and that of 2006 in the NW quadrant when viewed from a position ahead of the approaching Solar System. This is in an anticlockwise direction relative to the forward clockwise movement of the spiral paths about the SSCM followed by the orbiting components of the Solar System. The angular distance followed by the orbit from 1986 to 1996 was 360° when it returned to the same quadrant. It was only 270° from 1996 to 2006 when it did not complete a full 360° rotation around the SSCM. The angles are approximate but are amenable to calculation.

Table 1 and Figure 3 (Enlarge)
Influence of the Planets: Table 1 shows the positions of the Planetary System’s Center of Mass (PCM) at the time of the Sunspot minima during the period 1902–2006. The information in this table provides the first positive linkage between solar activity and the hydro meteorological time series. There is a statistically significant linkage with the double Sunspot cycle. He found no statistically significant linkage with the single, 11-year cycle. His analyses showed that these alternating cycles are associated with different hydro meteorological characteristics. The periodic behavior of the Solar System has a duration of 21 years (actually 20.8 years during the past century), not 11 years. This explains why scientists have been unable to find a linkage with the 11-year cycle, from which they erroneously concluded that there is no linkage with solar activity. While the relative positions of the planets are closely grouped in space at 21-year intervals, they are not precise in either time or space. This is the reason for longer period cyclicity including 178 years and longer cycles.

Sunspot Production: The plane of the path of the orbiting planets and the Sun must be at 45° to the line of motion of the Solar System. This is in order to balance the gravitational forces of a three-dimensionally balanced group of objects travelling at constant forward speed relative to that of the SSCM. Each body in the Solar System will follow a three-dimensional spiral track around the SSCM thus maintaining the group’s constant forward speed. This path will also be influenced by the changing positions of the major planets relative to one another and the Sun’s reciprocal movement.

All bodies of the Solar System therefore have a combination of two velocities. The dominant velocity component is the constant galactic velocity that is followed by the SSCM. The orbital velocities of the individual bodies around the SSCM are super- imposed on the galactic velocity. As they orbit the SSCM their net forward velocity will be the galactic velocity plus the orbital velocity (corrected for the 45° slope of the solar orbits) as they move forward in their orbits around the SSCM, and the galactic velocity minus the orbital velocity as they move backwards in their orbits around the SSCM. The net result is that the galactic velocities equal that of the SSCM when the bodies directly trail or lie directly ahead of the SSCM. The galactic velocities increase as they move forward around the SSCM, and they decrease as they move backwards about the SSCM. The galactic velocity of each body in the Solar System, including the Sun, therefore alternately accelerates and decelerates within the galactic plane as it orbits the SSCM. This is the crux of the issue. Once it is appreciated that the reference system is the galactic plane and not the plane of the Solar System, then everything else falls into place.

Sunspot production is a direct function of the Sun’s galactic acceleration and deceleration, with Sunspot minima occurring when the Sun is directly ahead or trailing the SSCM. There can be no doubt that it is the influence of the changing relative positions of the major planets that is the direct cause of Sunspot activity. The actual mechanism for Sunspot production as a result of galactic velocity changes has yet to be determined, although several theories exist.


The Sun’s Wobble: The distance of the Sun from the SSCM is the weighted reciprocal of the distance of the combined Center of Mass of the orbiting planets. Consequently, both the Sun’s distance from the SSCM and its galactic velocity are continually changing. This creates a wobble in its path through space. This can be calculated given the knowledge of the masses and orbits of the four major planets. Figure 3 shows the Sun’s wobble as it moved through galactic space during the period 1944 to 1958. During most of this time its orbit was below that of the SSCM in this view. While the SSCM lies within the body of the Sun most of the time, there are occasions when the Sun wobbles outside the SSCM. This figure provides an indication of the extent of its wobble as the Sun moves through space.

Earth to Sun Chord Distance: As a result of the Sun’s wobble, the chord length between the Earth and the Sun and the amount of energy received by the Earth will change accordingly. The next exercise is therefore to determine the corresponding changes in the distance between the Earth and the Sun and thereby the changes in the rate of solar energy reaching the Earth. This is amenable to precise calculation. The calculation of the chord length between the Earth and the Sun at any particular time has two components. The first is the position of the Sun relative to the SSCM at that time. The second is the elliptical path of the Earth about the SSCM. The Sun’s displacement from the SSCM changes relatively slowly but the ecliptic direction of the Earth about the Sun changes with the seasons. Figure 10 shows the dis- placement of the position of the Sun from the SSCM during 1993 and its effect on variations in solar energy received on Earth during that year.

Thursday, March 2, 2017

Fertility Rate, Life Expectancy and the Solar Cycle

Source: Huffington Post
Scientists at the Norwegian University of Science and Technology in Trondheim looked at the age of death of individuals born in Norway between 1676 and 1878 and compared the data to solar activity data. In addition to showing that individuals born during a solar maximum tended to die younger, the comparison showed that fertility was reduced in certain women born in years with high solar activity. In an unusual study, Norwegian scientists claim people born during periods of solar calm may live around five years longer than those born when the sun is feisty. They argue peak solar activity brings higher levels of ultraviolet radiation to Earth, which may increase infant mortality by degrading folic acid, or vitamin B9. Both of these are key to rapid cell division and growth that happens during pregnancy. The lifespan of those born in periods of solar maximum was 5.2 years shorter on average than those born during a solar minimum. High solar activity at birth decreased the probability of survival to adulthood,' thus truncating average lifespan.  

Source: Gine Roll Skjærvø, Frode Fossøy and Eivin Røskaft (2015) - Solar activity at birth predicted infant survival and women’s fertility in historical Norway. In: Proceedings of the Royal Society, Biological Sciences 282.

Sunday, February 26, 2017

Droughts and Floods vs Jupiter-Saturn Cycle and Lunar Declination Cycle

 When the sunspot and lunar cycles coincide there are distinct rainfall peaks. The 18.6 year Lunar cycle created flood years in Central Victoria in 1954-56, 1973-75, 1992-93 and 2010-11. The 2010-11 floods in northern Australia reflected a peak lunar rain-enhancement cycle. This particular lunar cycle was strongly enhanced by the closely synchronised 19.86 year Jupiter-Saturn Synodic Cycle.

Planetary and lunar cycles play an important part in shaping the climate, and also Australia’s flood and drought cycles are influenced by these forces. The Central Victorian rainfall records reveal that the 18.6 year lunar declination cycle and the 19.86 year synodic cycle of Jupiter-Saturn can each enhance or diminish average rainfall over prolonged periods resulting in extreme flood and extreme drought cycles. When these two cycles are closely in-phase with each other and are supported by the El Nino or the La Nina cycle, extreme droughts and extreme floods are likely to occur. This was the case during the early months of 2011 and enhanced by a very strong La Nina cycle during the preceding 9 months. Another major drought period is scheduled to occur around the middle of this lunar cycle (2020). 
 
The above graph shows the long-term rainfall record for Bendigo in Central Victoria, Australia. The Central Victorian climate is particularly sensitive to any changes in average air movements (air tides). This is due to the generally flat terrain of the area, which means the effects of the cosmic cycles are more prominent than in most other places in the world. This can be seen to occur with about 80% reliability during the last 66 years. The dominating effects are most obvious when a four-year rolling average line is used (thick line). The spacing of the recent droughts to flood periods appears to closely follow the “9.3 year rule” (i.e. half of the 18.6 year moon cycle). Peaks and troughs relative to the Bendigo’s long-term average of 544 mm are:

1944         Severe drought (284 mm)        
1954-56   Typical three years of major floods (average 737 mm)
1967         Severe drought (278 mm)        
1973-75   Wettest ever three year flood period (average 861 mm).
1982         Driest year on record (206mm)
1992-93   Two years of flood period (averaging 729 mm per year
2002         After 9 years of declining average rainfall, 2002 delivered only 271mm
2010         Eleven consecutive months of above-average rainfall set a new Bendigo record of 1061 mm.