Insolation and glacials
作者:
GEORGE JIR̊I KUKLA,
期刊:
Boreas
(WILEY Available online 1972)
卷期:
Volume 1,
issue 1
页码: 63-96
ISSN:0300-9483
年代: 1972
DOI:10.1111/j.1502-3885.1972.tb00145.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Climatic changes result from variables in planetary orbits which modulate solar energy emission and change seasonal and latitudinal distribution of heat received by the Earth. Small insolation changes are multiplied by the albedo effect of the winter snow fields of the Northern Hemisphere, by ocean‐atmosphere feedbacks, and, probably, by the stratospheric ozone layer. The role of volcanic explosions and other aperiodic phenomena is secondary. The immediate climate response to insolation trends permits astronomic dating of Pleistocene events. A new glacial insolation regime, expected to last 8000 years, began just recently. Mean global temperatures may eventually drop about 1oC in the next hundred years. A refinement of the Milankovitch theory in terms of the lunar orbit and more data on solar periodicities are needed for reliable long range prediction
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