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A simple model for 100 K-year oscillations in glaciationA simple climatic model which produces glaciation cycles of 100 K periods in response to forcing by 20 K, 40 K, and 100 K periods is described. The model is based on Milankovitch's (1930) hypothesis that glaciation fluctuations are forced by orbital variation and the associated change in insolation. The sea ice/snow cover line for the model, and the relation between heat variations and the ice/snow line are analyzed. The sea ice/snow cover line for the model is between the pole and 53 deg latitude and the line's position is the forcing for the glaciation cycle. Examples of the model's response to forcing are presented and evaluated. The negative glaciation permitted by the model is studied. The role of CO2 feedback in the glaciation cycle is investigated.
Document ID
19860060415
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lindzen, R. S.
(MIT Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
May 15, 1986
Publication Information
Publication: Journal of the Atmospheric Sciences
Volume: 43
ISSN: 0022-4928
Subject Category
Meteorology And Climatology
Accession Number
86A45153
Funding Number(s)
CONTRACT_GRANT: NSF ATM-83-4282
CONTRACT_GRANT: NAGW-525
Distribution Limits
Public
Copyright
Other

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