While typically seen as a control on ice growth and seasonality, the orbital parameters were theorized as a possible control on continental temperatures and seasonality. Simulating the Eocene by using an ice free planet, eccentricity, obliquity, and precession were modified in different model runs to determine all the possible different scenarios that could occur and their effects on temperature. One particular case led to warmer winters and cooler summer by up to 30% in the North American continent, and it reduced the seasonal variation of temperature by up to 75%. While orbital parameters did not produce the warming at the poles, the parameters did show a great effect on seasonality and needed to be considered.
while typically seen as a control on ice growth and seasonality the orbital parameters were theorized as a possible control on continental temperatures and seasonality simulating the eocene by using an ice free planet eccentricity obliquity and precession were modified in different model runs to determine all the possible different scenarios that could occur and their effects on temperature one particular case led to warmer winters and cooler summer by up to 30% in the north american continent and it reduced the seasonal variation of temperature by up to 75% while orbital parameters did not produce the warming at the poles the parameters did show a great effect on seasonality and needed to be considered