Sentences with phrase «orbital obliquity»

Ekholm also discusses the orbital obliquity cycle and its influence, presenting some interesting calculations a la his buddy Arrhenius, but he sees it as secondary to CO2 / temperature feedbacks.

Not exact matches

In our solar system, the Earth's orbital plane is known as the ecliptic, and so the Earth's axial tilt is officially called the obliquity of the ecliptic.

It is believed that the PETM was likely initiated by changes of the orbital parameters of the Earth (eccentricity, obliquity and precession of axis) causing an increase in the intensity and distribution of solar radiation reaching the earth (Sexton et al, 2011).

On December 1, 2009, two astronomers submitted a pre-print suggesting that the planet's extreme axial tilt (an obliquity of 97 degrees) may have resulted from the presence of a large moon that has since been ejected from orbit around the ice giant by the pull of another planet during the orbital migration of the giant planets early in the formation of the Solar System.

But a major problem exists for the standard orbital hypothesis of glaciation: Late Pliocene and early Pleistocene glacial cycles occur at intervals of 40 ky (8 — 11), matching the obliquity period, but have negligible 20 - ky variability.

Individual discrepancies have been explained, for example, through interactions between other orbital frequencies such as obliquity and the 413,000 - year period of eccentricity but a unified explanation is lacking.

Lisiecki et al. (2008) analysed orbital responses in proxy indicators of oceanic overturning and found that the AMOC is sensitive to maxima in the obliquity and precession components of the Earth's orbit around the Sun.

The use of the changing orbital eccentricity and obliquity of the ecliptic is nice, for completeness, but over only a century or two those slowly - altering values have little effect.

In hip nomenclature, I would be a near perfect «flat - earther» in the blatant perfect pretzel logic that would make such an assignation applicable to one that comprehends the pacing of our climate by the 3 orbital variables of precession, obliquity and eccentricity.

Might the «weather» of orbital cycles be impacted by K / T but not the «climate» — perhaps the trajectories of obliquity, precession and eccentricity would become completely different given sufficient time, but maybe with the same general character — periods and amplitudes and average values being similar enough that a casual glance at any given time segment (on the necessary scale to characterize the orbital cycle «climate») wouldn't look like anything different.