Environmental fluctuation effects on the global energy balance
Abstract
The qualitative effects of environmental fluctuations on the global energy balance are examined at the level of a zerodimensional planetary model. External noise representing environmental fluctuations is multiplicatively coupled to the deterministic equations of evolution. An expression obtained for the maximum of the steadystate temperature probability distribution function is applied to fluctuations of the solar constant, the emissivity of the earthatmosphere system at fixed albedo and albedo and emissivity together as a result of cloudiness, to reveal that solar constant and emissivity fluctuations lead to lower temperature values. Fluctuating cloudiness is shown to lead to small increases in temperature, due to the opposite effects of albedo and emissivity variations. The possible generation of runaway temperature regimes due to fluctuating environmental parameters is also noted.
 Publication:

Nature
 Pub Date:
 September 1979
 DOI:
 10.1038/281132a0
 Bibcode:
 1979Natur.281..132N
 Keywords:

 Atmospheric Heat Budget;
 Atmospheric Models;
 Climatology;
 Air Land Interactions;
 Albedo;
 Mathematical Models;
 Solar Terrestrial Interactions;
 Temperature Effects;
 Geophysics;
 ATMOSPHERIC HEAT BUDGET;
 ATMOSPHERIC MODELS;
 CLIMATOLOGY;
 AIR LAND INTERACTIONS;
 ALBEDO;
 MATHEMATICAL MODELS;
 SOLAR TERRESTRIAL INTERACTIONS;
 TEMPERATURE EFFECTS