Sentences with phrase «obliquity over»

Not exact matches

Over this time interval, the obliquity (tilt) of the Earth axis varies between 22.05 ° and 24.50 ° with a strong quasi-periodicity around 41 kyr.

CO2 provides only a minor effect in the obliquity and precession timescale band, but over 30 % of the forcing in the 100 kyr band, so it is a key forcing agent that allows us to explain the magnitude of glacial - interglacial temperature variations.

«At high obliquity, temperatures over mid-to-high latitude continents would reach near boiling 80 to 100 Celsius around the summer solstice under a 1 - bar nitrogen - dominated atmosphere.

MILANKOVITCH CYCLES overall favor N.H. cooling and an increase in snow cover over N.H high latitudes during the N.H summers due to the fact that perihelion occurs during the N.H. winter (highly favorable for increase summer snow cover), obliquity is 23.44 degrees which is at least neutral for an increase summer N.H. snow cover, while eccentricity of the earth's orbit is currently at 0.0167 which is still circular enough to favor reduced summertime solar insolation in the N.H. and thus promote more snow cover.

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.

While the earth does not exit an Ice Age every 41k years according to the obliquity cycle when it achieves it's maximum angle of > 24 degrees, over the 10 recorded Ice Age events, EVERY TIME WITHOUT FAIL as obliquity drops below 23.5 % an Ice Age STARTS.