Computer Science – Numerical Analysis
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988angeo...6..101g&link_type=abstract
Annales Geophysicae (ISSN 0980-8752), vol. 6, Feb. 1988, p. 101-112. FNRS-supported research.
Computer Science
Numerical Analysis
7
Atmospheric Models, Earth Surface, Radiative Heat Transfer, Solar Radiation, Stellar Luminosity, Surface Temperature, Adiabatic Conditions, Numerical Analysis, Solar Constant, Stellar Evolution, Stellar Interiors
Scientific paper
A radiative-convection model of the atmosphere from the ground to about 60 km is used to study the response of the surface temperature to changes in the value of the solar constant. At a relative solar luminosity value of 1.2 with respect to the present value a moist adiabatic model is found to give a mean surface temperature of 29 C, over 30 C less than the corresponding calculation with an adiabatic lapse rate fixed to the usual 6.5 K/kcal value. With inclusion of surface albedo feedback in the model the system becomes unstable as the solar luminosity is lowered, resulting in a jump to a stable solution in which the earth is completely ice-covered.
François Louis M.
Gérard Jean-Claude
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