Category Archives: cycles-Prediction

Cycles – prediction: making predictions or forecasts of anything based on combining cycles of known period, phase and amplitude.

Cycles in the New Zealand Economy

(originally posted 02/05/07 on Wobbly Universe blog by Ray Tomes) Although I had been somewhat interested in cycles before 1978, that was the year when I began doing economic modelling on a computer and some cycles just jumped out at … Continue reading

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When minor planets Ceres and Vesta rock the Earth into chaos

Jacques Laskar and colleagues have been leaders in the field of long term solar system planetary motion calculations. Their earlier efforts have produced calculations of the solar system motions for more than 20 million years. These motions are important because … Continue reading

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Lunar cycles and Golden Ratios: exposing the weird world of chartism

City Wire Wealth Watch United Kingdom by David Campbell on Jun 03, 2011 The constituent parts read like a discarded plot line from The Da Vinci Code: the ancient Greek mathematical principle of the Golden Ratio, elements of chaos theory … Continue reading

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A Cycles Analysis Approach to Predicting Solar Activity

In desperation I asked Fermi whether he was not impressed by the agreement between our calculated numbers and his measured numbers. He replied, “How many arbitrary parameters did you use for your calculations?” I thought for a moment about our … Continue reading

Posted in astronomy-Planets, astronomy-Solar, climate-Solar, cycles-Analysis, Cycles-General, cycles-Prediction | 3 Comments

Say Goodbye to Sunspots?

According to sciencemag the magnetic field of the Sun has been gradually reducing over a long period and we might soon be seeing very few sunspots for quite some time. Scientists studying sunspots for the past 2 decades have concluded … Continue reading

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CATS Training Seminar 4 – Cycles Analysis & Projection

The 4th CATS (Cycles Analysis & Time Series) Software Training Session video is now available at Vimeo at: It deals with how to use the spectrum analysis to find cycles periods and to fit them to the data and … Continue reading

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Vaal River Flow Cycles

Fluctuations in river flows are important as they affect irrigation and therefore the livelihood of people. The Vaal river in South Africa is and important water source in the region and was studied by Alexander et al (Journal of the … Continue reading

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