These two graphs indicate that there are times when solar
minimum occurs at or near the same location on the ecliptic.
When the Sun’s acceleration decreases during an Ice-age cycle
it’s orbit becomes more circular and average solar cycle length
becomes longer (approaching 11.86 years).
During the 12,000 year inter-glacial periods there is evidence
that this is happening to a lesser degree. Notice the 143 year
separation (Bretagnon wave?) between 1843 and 1986.
CRIKEY said”feel freee to ask TOM questions in the comments section below.
This post is an ongoing study of Toms’
Use the search facility to find his previous posts
l store all of Toms graphs in my solar system and the earths climate folder found here
TOM MANGO has undergoing research on this topic. Here are a few of his latest graphs showing some key cycles that are open to link to earths climate
His email is
The first graph is the sixtyoneyear graph which contains equ(3) in orchid.
If we perform peak-to-peak analysis on equ(3) using every fifth peak we will extract a 2208 year (Hallstatt) cycle.
Notice that the Hallstatt has a 144 year wave oscillating on it (second and fourth graphs).
I discovered this wave but I named it after Pierre Bretagnon.
This peak-to-peak analysis simply measures the change expressed in terms of mass.
Now… If we analyze every fifth peak we find there is actually five combinations (not demonstrated in the graphs).
So… There is actually five overlapping Hallstatt cycles produced, each separated by a phase of ~441.6 years (2208 / 5).
One of the five Hallstatt cycles was in agreement with the Damon and Sonnet 14C data.
I chose the one that was in agreement and that is the fourth graph.
The third graph is a climate projection based on the work of others.
Here I’ve made a huge discovery involving the ~1000 year millennial cycle.
In my model minimums advance along a 914 year wave and these minimums re-occur at ~1000 year intervals.
So…. the next minimum scheduled to repeat itself is the Oort minimum, which should happen in 2070.
It was later that I discovered the Bretagnon wave and that the millennial cycle was really 1008 years (144 x 7).
KEEP TUNED for discussion and please feel free to ask tom questions here
His email is
If you want more detail on the development of these findings. I have a post dedicated to TOM MANGO’s work
You might have to scroll through the pages
CLICK ON TITLE TO LOAD ALL FURTHER ENTRIES ON THE BASE OF THIS PAGE
. NASA defines the term as a cold period between AD 1550 and 1850
“The period between 1400 and 1850 was marked by an average temperature drop of just less than 1 degree C (1.8 degrees F), but not just in the Northern Hemisphere. Scripps graduate student Anais Orsi and colleagues found evidence of the same cooling trend in samples of ice from the West Antarctic Ice Sheet. That contradicts prevailing theories that the Little Ice Age was not globally synchronized, but a regional cooling possibly triggered by changes in ocean circulation that created a temperature see-saw effect between the hemispheres.”
JAMIE JESSOP and his google blog for linking this interesting info’