A Planet Effective Temperature Complete Formula Te = [ Φ (1-a) S (β*N*cp)¹∕ ⁴ /4σ ]¹∕ ⁴

Plus the introduction to the Reversed Milankovitch Cycle. Click on the box for more

The Original Milankovitch Cycle

       On the left grapheme is the Original Milankovitch Cycle.

     According to Milankovitch Ice Ages are generally triggered by minima in high-latitude Northern Hemisphere summer insolation, enabling winter snowfall to persist through the year and therefore accumulate to build Northern Hemisphere glacial ice sheets. Similarly, times with especially intense high-latitude Northern Hemisphere summer insolation, determined by orbital changes, are thought to trigger rapid deglaciations, associated climate change and sea level rise.

       But, at second thought, I concluded that Earth cannot accumulate heat on the continents’ land masses. Earth instead accumulates heat in the oceanic waters.

The Reversed Milankovitch Cycle

     Milankovitch’s main idea was that the glacial periods are ruled by planet’s movements forcing.

     Here we have the grapheme of the Reversed Milankovitch cycle. The minimums in the reversed Milankovitch cycle are the maximums in the original. These two cycles, the original Milankovitch cycle and the reversed differ in time only by a half of a year. According to the reversed Milankovitch cycle there are long and very deep glacial periods and small and very short interglacial. The reversed cycle complies with the paleo geological findings. As we can see in the reversed Milankovitch cycle, we are getting now to the end of a long and a slow warming period. What we are witnessing as a Global Climate Change are the culmination moments at the end of that warming period.

The Original and the Reversed Milankovitch Cycles comparison

It is time now to have a very precise look at those  grafemes.

To start with I should say that they are only tiny fragments of the entire Milankovitch Cycles. Those tiny fragments describe a relatively small period of 50.000 years back and forth.

Milankovitch's work is much more extent. It goes to almost 600.000 years away in time.

What is the most important difference in those small grafemes is the way the orbital forced climate tendency approaches the present temperature conditions on the Planet Earth.

On the Original Milankovitch Cycle the arrow approaches the year 2019 on the downward direction. (The 2019 year is at the point where the small ring intercepts the horizontal line).

It is interpreted that there is an orbital forced cooling trend, which has been overcome by the Greenhouse Effect Gasses, and the Planet Earth is warming now instead of getting cooler.

The Reversed Milankovitch Cycle offers us the exactly opposite opinion. On the Reversed Milankovitch Cycle the arrow moves to the year 2019 point on the upward direction.

This is it! The Reversed Milankovitch Cycle confirms itself.

It describes an orbital forced Global Warming trend. This orbital forced Global Warming trend is a very long and a very slow process. The Warming is happening naturally. It is a coincidence in our era for us to witness the culmination moments. Earth will continue to be at those relatively warm times for about a couple of thousand years ahead. Then, gradually, the Global Temperatures will become cooler...

At present Perihelion occurs in the middle of the Southern Hemisphere summer

At present Perihelion occurs in the middle of the Northern Hemisphere winter. Consequently at present Perihelion occurs in the middle of the Southern Hemisphere summer. In the summer Earth's axis tilts toward sun.

At Perihelion Earth receives 7% more intense sunlight than at the Aphelion. This is because the Earth's orbit is not circular but elliptical, with the Sun located in one of the foci of the ellipse.

When we apply Stefan-Boltzmann Law we come to conclusion that at present, when Perihelion occurs in the middle of the Southern Hemisphere summer, Earth absorbs more solar energy and that leads to orbital forced warming trend.

It happens because North and South Hemispheres have an unequal distribution of land and oceanic surfaces.

The Southern Hemisphere is mostly covered with oceans (water) and the Northern Hemisphere is crowded with continents (soil).

As a result there is a major difference in each Hemisphere surface qualities.

The surface is what interacts with incoming solar flux.

It is just happening that way at present. When Southern Oceans are tilted towards sun Earth is at Perihelion (at closest to sun position).

At present more intense insolation (+7%) falls on oceanic waters. That leads to orbital forced global warming trend.

It happens according to Reversed Milankovitch Cycle.