Variability of the Earth’s orbit: Astronomical theory
The history of the origination and evolution of astronomical theory (often called “Milankovitch theory”) was provided by Imbrie and Imbrie (1979). Bol’shakov (2008) provided an interesting and valuable review of the various contributors to the astronomical theory of ice ages, emphasizing the early innovative ideas of James Croll who realized that orbital variations did not change the total solar input to the Earth very much, but rather changed the distribution of solar energy by latitude. In addition, as Bol’shakov said: “Croll was the first to introduce Earth positive feedbacks that enhance the insolation variations’ climatic influence as the physical agents.”
KeywordsHigh Latitude Solar Irradiance Orbital Parameter Solar Variability High Northern Latitude
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