title: Periodic insolation variations on Mars.
abstract: Previously unrecognized insolation variations on Mars are a consequence of periodic variations in eccentricity, first established by the theory of Brouwer and Van Woerkom (1950). Such annual insolation variations, characterized by both 95,000-year and 2,000,000-year periodicities, may actually be recorded in newly discovered layered deposits in the polar regions of Mars. An additional north-south variation in seasonal insolation, but not average annual insolation, exists with 51,000-year and 2,000,000-year periodicities.
authors.forename: B C
authors.initials: BC
authors.lastname: Murray
authors.forename: W R
authors.initials: WR
authors.lastname: Ward
authors.forename: S C
authors.initials: SC
authors.lastname: Yeung