Abstract
The effect of Earth precession angle on a climate is presented here. It is shown that the glaciation epochs occurred only when the precession angle was low. After the continental glaciation formed in the Northern hemisphere, Earth’s spherecal symmetry was disrupted and its precession angle increased drastically. As a result, a drastic and rapid climate warm-up occurred, the glaciers melted down and an interglacial stadial1 began. Subsequently, affected by the Lunar-Solar gravity pull on the Earth’s equatorial swelling, the precession angle gradually decreased and a new cooling-down phase occurred. As a result, there was nonlinear oscillation of Earth’s climate with periods on the order of 100 - 120 MY.
Highlights
The emergence of Earth’s glaciation epochs is an oscillatory process as the periods of significant cooling-down are followed by appreciable warm-ups which, in turn, are followed by cooling-down periods
It is shown that the glaciation epochs occurred only when the precession angle was low
After the continental glaciation formed in the Northern hemisphere, Earth’s spherecal symmetry was disrupted and its precession angle increased drastically
Summary
The emergence of Earth’s glaciation epochs is an oscillatory process as the periods of significant cooling-down are followed by appreciable warm-ups (interglacial stadials) which, in turn, are followed by cooling-down periods. For this reason it is practically impossible to explain this oscillatory process by smooth climatic changes (such as declinein the atmospheric pressure due to bacterial activity). In this case, it is important to consider to the behavior of the revolving Earth precession, which emerges in association with deflections of the Earth’s mass distribution from the spherical symmetry. A result is rather complex pattern of the Earth’s axis rotation [3,4,5]
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