FEEDBACK BETWEEN A SIMPLE BIOSYSTEM AND THE TEMPERATURE OF THE EARTH

被引:15
作者
DEGREGORIO, S
PIELKE, RA
DALU, GA
机构
[1] COLORADO STATE UNIV,COOPERAT INST RES ATMOSPHERE,FT COLLINS,CO 80523
[2] COLORADO STATE UNIV,DEPT ATMOSPHER SCI,FT COLLINS,CO 80523
关键词
BIOSYSTEM BEHAVIOR; EARTH TEMPERATURE; DIFFUSION OF THE TEMPERATURE; PERIODIC AND LINEAR VARIATION OF LUMINOSITY; STATIONARY SOLUTIONS; ASYMPTOTIC LOCAL AND GLOBAL STABILITY;
D O I
10.1007/BF01208926
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
A detailed mathematical analysis is presented of the model of Daisyworld, proposed by Watson and Lovelock. The stationary solutions of a resulting quartic system of ODEs are examined and their local and global attractivity is proved. The model shows, in a suitable range of values of the albedo and of the diffusion of the temperature, a mitigation of the climate in response to luminosity perturbations. The feedback between the biological components and the Earth's climate can be so efficient that the temperature of the Earth will stay practically constant even under substantial variations of the solar luminosity.
引用
收藏
页码:263 / 292
页数:30
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