The climate in the Quaternary is characterized by ice age cycles with periods in the range of tens of thousands to a hundred thousand years, triggered by long-term insolation variations due to the Earth's orbital and precessional motions. Although we can accurately calculate long-term insolation variations at the top of the Earth's atmosphere, we need to know the physical and dy- namical processes occurring in the complicated climate system of the Earth in order to under- stand the true nature and origin of the ice age cycles. In this manuscript, first we briefly review how the gravitational interaction between planets causes insolation variations. Then, we sum- marize the recent status of large-scale numerical experiments as to how the ice age cycles take place in the climate system of the Earth, with a particular focus on dynamical modeling of ice sheets.
CITATION STYLE
ITO, T., & ABE-OUCHI, A. (2007). Insolation Variations and Ice Age Cycles in the Quaternary. Journal of Geography (Chigaku Zasshi), 116(6), 768–782. https://doi.org/10.5026/jgeography.116.6_768
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