The effect on earth's surface temperature from variations in rotation rate, continent formation, solar luminosity, and carbon dioxide

Details The effect on earth's surface temperature from variations in rotation rate, continent formation, solar luminosity, and carbon dioxide The effect on earth's surface temperature from variations in rotation rate, continent formation, solar luminosity, and carbon dioxide

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....9411129k&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, Aug. 20, 1989, p. 11129-11136.

Mathematics

Logic

20

Carbon Dioxide Concentration, Earth Rotation, Earth Surface, Geotemperature, Solar Activity Effects, Surface Temperature, Change Detection, Greenhouse Effect, Polar Regions, Stellar Luminosity, Tropical Regions

Scientific paper

Proposed evolutionary histories of solar luminosity, atmospheric carbon dioxide amounts, earth rotation rate, and continent formation have been used to generate a time evolution of the earth's surface temperature. While speculative because of uncertainties in the input parameters, such a study does help to prioritize the areas of most concern to paleoclimatic research while illustrating the relationships and mutual dependencies. The mean temperature averages about 5 K higher than today over most of geologic time; the overall variation is less than 15 K. The evolution of the earth's rotation rate makes a significant contribution to the surface temperature distribution as late as 0.5 b.y. ago. While there is little change in equatorial temperatures, polar temperatures decrease, being some 15 K lower 3.5 b.y. ago than with present day rotation. The effect of continent growth on albedo is of secondary importance.

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