Sentences with word «obliquity»

Changes in obliquity modulate seasonal contrasts as well as annual mean insolation changes with opposite effects at low vs. high latitudes (and therefore no effect on global average insolation)-LCB- 6.4 -RCB-.

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.

I would hazard a guess that during periods of high obliquity that ozone holes have naturally developed.

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

What asteroseismology can do for exoplanets: Kepler - 410A b is a Small Neptune around a bright star, in an eccentric orbit consistent with low obliquity

I have claimed the Holocene ended in 1300ad, the start of the LIA sequence, when obliquity fell past 23.5 deg.

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.

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.

And why does the 41kyr obliquity cycle dominate most of the time?

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.

The paper looks at the basic rules governing planetary ice extent on Earth - like exoplanets at different obliquities.

During the past several million years, astronomical cycles are dominated by 405 kyr, 125 kyr, and 95 kyr eccentricity cycles, 40.9 kyr obliquity cycles, and 23.6 kyr, 22.3 kyr, and 19.1 kyr precession cycles19, 49.

Many scientists propose that decreasing obliquity, or Earth's tilt, is responsible for initiating the cooling tipping point.

Glacial variability over the last two million years: an extended depth - derived age model, continuous obliquity pacing, and the Pleistocene progression.

We can see it plainly in a Fourier periodogram of earth's obliquity over the last 5 million years:

Flip the model upside down for the case where obliquity exceeds 55º and the annual - average insolation gradient is reversed

We use a one - dimensional energy balance climate model (EBM) to examine how obliquity, spin rate, orbital eccentricity, and ocean coverage might influence the onset of such a snowball state.

This practice gives her poems a visual aesthetic and an occasional obliquity.

Paleonthology will probably also construct that the Earth's obliquity etc re Milankovic, was more in optimum for insolation.

Something funny happens for planets at obliquity angles exceeding 55º.

All this is justified with sophistry about supposedly hard - headed political reality and woolly notions about obliquity.

This mechanism may be extended to deep time with no ice sheets and to the long - period obliquity modulations.

For example, in the Upper Carboniferous (~ 300 million years ago), the ~ 41,000 yr obliquity cycle would have taken about 33,000 years (see e.g., here)