Modeling the interglacials of the last one million years
(2012) Climate change at the eve of the second decade of the century. Inferences from paleoclimates and regional aspects — ISBN: [978-3-7091-0972-4], 57-64, published
Files
No attached file found for this publication.
Details
- Authors
- Abstract
- The climate associated with the peaks of the interglacials of the last one million years is investigated through the response of an Earth Model of Intermediate Complexity, LOVECLIM, to the variations of the astronomically induced insolation and of the greenhouse gas concentrations. The dates selected are those where the Northern Hemisphere summer occurs at perihelion. The simulated global annual mean air temperature show that, on average, the interglacials after the Mid Bruhnes Event are warmer than before as expected from the larger average CO2 concentration. However, the seasonal response came more as a surprise with the warming being mainly during the winter season in response to the astronomical forcing. The latitudinal and seasonal distribution of insolation is indeed characterized by less energy available, in average, over the Earth during Northern Hemisphere summer, but more during Northern Hemisphere winter for the interglacials after MBE than before. The relationship to the long term variations of precession and obliquity is discussed.
- Affiliations
Citations
Berger, A., & Yin, Q. (2012). Modeling the interglacials of the last one million years. In A. Berger, F. Mesinger, D. Sijacki (ed.), Climate change at the eve of the second decade of the century. Inferences from paleoclimates and regional aspects (pp. 57-64). Springer. https://hdl.handle.net/2078.5/158740