The role of astronomical factors in the formation of ice ages

Details The role of astronomical factors in the formation of ice ages The role of astronomical factors in the formation of ice ages

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988fizao..24..305v&link_type=abstract

Akademiia Nauk SSSR, Izvestiia, Fizika Atmosfery i Okeana (ISSN 0002-3515), vol. 24, March 1988, p. 305-309. In Russian.

Astronomy and Astrophysics

Astronomy

Air Sea Ice Interactions, Climatology, Land Ice, Solar Terrestrial Interactions, Carbon Dioxide, Glaciers, Insolation, Long Term Effects, Time Response

Scientific paper

The role of astronomical factors in the formation of ice ages is investigated via numerical experiments using a thermohydrodynamic model of the ocean/atmosphere/ice/asthenosphere system, taking intermillenial insolation variations into account. It is shown that variations of the solar heat influx during caloric half-years can initiate ice ages but that their intensity is not sufficiently great to cause the retreat of ice sheets. The period of 10 kyr in the spectra of paleoclimatic indicators is due to oscillations in the ice sheet/asthenosphere system while periods of 42 and 23 kyr are explained by astronomical factors.

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