Sentences with phrase «pleistocene ice age cycles»

The periods considered were mainly the Pleistocene ice age cycles, the LGM and the Pliocene, but Paul Valdes provided some interesting modeling that also included the Oligocene, the Turonian, the Maastrichtian and Eocene, indicating the importance of the base continental configuration, ice sheet position, and ocean circulation for sensitivity.

Not exact matches

It seems the response has been edited after first posting — I thought the first time I read it there was a mention by Raypierre of Milankovitch cycles being the explanation of the roller coaster of ice ages — I was going to ask whether anyone has explained why the M. cycle produced ice ages during the Pleistocene, but not the Pliocene, Miocene, Eocene, etc...?

According to the standard story, the recent ice age cycles only set in in the Pleistocene because you need ice to amplify the rather small Milankovic forcing and to rectify the seasonal forcing modulations into a long - term signal.

They have focused on looking at the warmer climates of the Cenozoic (the Pliocene, etc.) to avoid the confusion from the response of ice sheets to orbital forcing during the ice age cycles of the Pleistocene, but obviously have significant uncertainties due to less precision about ancient greenhouse gas levels.