Sentences with phrase «by obliquity»

Now the glacial cold lurking in the deep ocean, held in check by obliquity for 10,000 years, has been set free, ending the Holocene Interglacial.

Major periods of the Holocene set by obliquity and a ~ 2400 year Bray cycle.

However, changes in eccentricity interact with seasonal effects induced by obliquity and precession of the equinoxes.

Sea - level oscillations of 10 - 30m were paced by obliquity.»

Powering Triton's recent geological activity by obliquity tides: Implications for Pluto geology.

Not exact matches

The acceleration caused by the jets is so small — about a millionth of a metre per second squared — that the star would have to move in the same direction for a million years to create obliquity.

«We found that the obliquities of the planets in multihabitable systems were not really affected by their close orbits,» said Li.

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.

Austrian film - maker Michael Haneke has often been open to the charge of obscurity, ambivalence and obliquity, but no one has ever accused him of suggesting that life is other than a vale of tears best endured by honesty, love, unremitting work and a frank recognition of its essentially tragic nature.

This may also help explain why, before about 800 ky ago, glacial cycles were dominated by the 41 ky obliquity cycle, while precession had very little effect.

But eccentricity modulates the effect of precession (the alignment of perihelion and aphelion with solstices or equinoxes)(actually, obliquity does modulate this too, but while obliquity variations have significant effect by themselves, they are relatively small in proportion to the difference with zero obliquity, whereas Earth's eccentricity variations include getting near zero, where aphelion and perihelion would have no effect as they wouldn't exist.

Vetoretti and Peltier (2004) found that glacial inceptions can be caused either by a strong obliquity forcing or by a combination of eccentricity - precession forcing and low CO2 values, which is in line with results from Berger and Loutre (2001) who found that CO2 is important during times like the MIS - 11, when the insolation variations are too small to drive glacial - interglacial cycles.

While it is possible that the less significant, and originally overlooked, inclination variability has a deep effect on climate, [11] the eccentricity only modifies insolation by a small amount: 1 — 2 % of the shift caused by the 21,000 - year precession and 41,000 - year obliquity cycles.

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.

An obliquity peak — thermally lagged by 6,500 years, coinciding with a peak of precession modulation / eccentricity, causes an interglacial.

Vegetation changes suggest that they constitute distinctive climatic states established by insolation conditions from the obliquity and precession cycles (figure 47).

Every 2 or 3 obliquity peaks — lagged by 6,500 years by the ocean's thermal inertia, induces an interglacial.

This gave rise to the appearance that the 100,000 year eccentricity cycle was driving the cycle, while in reality it was — and is — still obliquity, modulated by the other two.

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.

In a linear version of the Milankovitch theory, the two shorter cycles can be explained as responses to insolation cycles driven by precession and obliquity.

During the Early Triassic, Milankovitch cycles were dominated by 405 kyr, 125 kyr, and 95 kyr eccentricity cycles, 33 kyr obliquity cycles, and 21 kyr, 20 kyr, and 17 kyr precession cycles19, 31,49.