1945
Figure 2. NAW temperature data series shown alongside the 74 yr harmonic lunar
nodal tide, the identified 18 yr wavelet cycle, and the astronomic 18.6 yr lunar nodal
tide cycle.
Figure 2 shows the time-series of the North Atlantic Water temperature on the Scotland
side of the Faroe-Shetland Channel from 1900 to 2005 and represents one of the
longest oceanographic time-series in the world. The data series demonstrates that the
temperature has large fluctuations within a period of one hundred years. A wavelet
analysis of the data series identified dominant cycles that correlated with lunar nodal
cycles of about 9, 18 and 74 years (Fig. 2). The dominant lunar nodal cycle periods
correlated with the astronomic lunar nodal tides, but had an unstable phase. The identified
74 yr wavelet cycle, W74(t), had an estimated phase of about 74(t)=(0.29-0.10)
rad and represents the long-term mean temperature fluctuation. The correlation is
estimated to R4T=0.93, Q4T= 27.8 and N=104 to the sub-harmonic cycle u4T(t). The 74
yr cycle had a reversed phase compared to the 74 yr polar movement cycle. The estimated
phase of the identified 18 yr wavelet cycle W18(t) was about 18(t)=0.90 rad for
the period from 1900 to 1925, the same phase angle as the lunar nodal tide. At about
1925, the 74 yr period in polar movement changed to a negative state, the Atlantic water
temperature changed to a positive state and the 18 yr cycle had a phase-reversal from
1925 to 2004. In this period the correlation to the astronomic 18.6 yr lunar tide was
estimated to be RT=-0.68, QT=8.3 and N=80 samples.
Let the cooling being.
newspaper images from Tony Heller youtube.
Arctic Essays
2018 Headlines
Effects of persistent Arctic warming continue to mount
Continued warming of the Arctic atmosphere and ocean are driving broad change in the environmental system in predicted and, also, unexpected ways. New emerging threats are taking form and highlighting the level of uncertainty in the breadth of environmental change that is to come.
(alas 1940's ) this time last one out the door keeps the debt.
2019
Near harmonic relationship to Solar Cycles.
The time for the Earth to travel the same Average distance to the Sun (93,000,000 miles ) on its equatorial rotation
is 10.62 years.
Today the solar cycle is an average of 11.2 years, back then it was 10.6—close enough, the researchers suggest, to conclude that the sun has been behaving very predictably for at least 290 million years.
7 x 10.62 average dser = 74.4 years
Lunar Nodal 18.6 years Ebbs and Flows here... 4 x 18.6 = 74.4 Years
Swirls as a Wine Glass effect here .
Heat over time dissipated to atmosphere through melting Ice.
Arctic Ocean oscillation
Wavelet analysis of the polar position has identified a harmonic lunar nodal cycle in the y direction of about 4 × 18.6 = 74.4 years. This residence time represents a third harmonic cycle of the 74-year cycle, or 74.4/3 = 24.5 years. The same cycle is estimated in the time-series of the Barents Sea ice cover, the Greenland Sea ice cover, and the winter temperature at Røst. The close relationship among these cycles may be explained by the circulating polar position that controls the residence time of circulating water in the Arctic Ocean. The circulating layers in the Arctic have residence times that are reflected in the time-series of Greenland Sea ice cover and can be explained by a “wine-glass” theory. This is based on the idea that the rotating Arctic Ocean behaves like liquid in a rotating wine glass. Accordingly, the Deep-Water oscillation has a resonance of about 74 years, a resonance related to water volume and density. A forced polar-position cycle of about 74.4 years would then control a 74-year cycle of Deep-Water circulation in the Arctic. Energy from such a forced 74-year Deep-Water oscillation would be distributed as a harmonic spectrum, in which there is a new 4 × 74.4 ≈ 290-year resonance in the Bottom Water where the water has the most density, with a 74.4/3 ≈ 25-year resonance in the Atlantic, where the water is less dense. https://academic.oup.com/icesjms/article/63/3/401/718604
North Atlantic Water ... less heat less melt intrusion.
Natural Cycles do what Natural Cycles do.
It all points towards the cooling phase.
https://spaceweatherarchive.com/2019/04/10/experts-predict-the-solar-cycle/
In recent years, the Internet has buzzed with the idea that a super-deep solar minimum such as the 70-year Maunder Minimum of the 17th century might cool the Earth, saving us from climate change. That’s not what the panel is saying, however.
“There is no indication that we are currently approaching a Maunder-type minimum in solar activity,” says Upton. Solar minimum will be deep, but not that deep.
Meanwhile, we have solar minimum. This is a widely misunderstood phase of the solar cycle. Many people think it brings a period of dull quiet. In fact, space weather changes in interesting ways. For instance, as the sun’s magnetic field weakens, holes open in the sun’s atmosphere. Emerging streams of solar wind buffet Earth’s magnetic field, sustaining auroras even without solar flares and sunspots. Some observers believe that Solar Minimum auroras have a distinctive palette, pinker than during other phases of the solar cycle.
The sun’s weakening magnetic field also allows cosmic rays to enter the solar system. Energetic particles from deep space penetrate Earth’s atmosphere with a myriad of possible effects ranging from changes in upper atmospheric electricity to extra doses of radiation for people on airplanes.
Finally, the sun dims, especially at extreme ultraviolet wavelengths. This, in turn, causes the upper atmosphere to cool and contract. Aerodynamic drag that would normally cause satellites to decay is reduced; space junk accumulates. This effect makes solar minimum a terrible time to blow up satellites–although people do it anyway.
The Solar Cycle Prediction Panel is comprised of scientists representing NOAA, NASA, the International Space Environment Services, and other U.S. and international scientists. Their April 5th prediction was preliminary, and they plan to issue a refined forecast by the end of 2019.
Finally ..... Australian Drought also 74 years .. history repeats 2017-2021.
Conclusion . Proposal of a cycle and where it is heading should not only show data but also the comparative Physical manifestations as demonstrated here.
