Details

Autor(en) / Beteiligte

• Eddy, John A
• Gilliland, Ronald L
• Hoyt, Douglas V

Titel

Changes in the solar constant and climatic effects

Ist Teil von

• Nature (London), 1982-12, Vol.300 (5894), p.689-693

Erscheinungsjahr

1982

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Spacecraft measurements have established that the total radiative output of the Sun varies at the 0.1-0.3% level. The observed fluctuations are well modelled as radiative deficits proportional to the area of the solar disk covered by sun spots. Historical records of projected sun-spot areas permit an accurate reconstruction of these short-term fluctuations over the past century. Such changes can be expected to perturb the terrestrial surface temperature by a fraction of a degree centigrade, and probable evidence of this solar induced signal has been found. The effect, although important in terms of understanding the climate system, is too small to be significant in practical weather or climate predictions.