ESS11
Prof. Jin-Yi Yu
Eccentricity Variations
q
Today’s eccentricity is 0.0167, lies
well toward the lower end of the
variation range of Earth’s eccentricity
(closer to circular).
q
The long-term variations in orbital
eccentricity are concentrated at two
periods: 100,000 years and 413,000
years.
(from
Earth’s Climate: Past and Future
)