No glacial-interglacial cycle in the ice volume simulated under a constant astronomical forcing and a variable CO2
(2000) Geophysical Research Letters — Vol. 27, n° 6, p. 783-786 (2000)
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- Abstract
- The relative impact of the CO2 concentration on climate-over the last 200 kyr is investigated here using the Louvain-la-Neuve 2-dimension Northern Hemisphere (LLN 2-D NH) climate model forced by different constant insolations and the variable CO2 concentration reconstructed from the Vostok ice-core record. Under such conditions the 100-kyr cycle in-the Northern Hemisphere ice volume cannot be reproduced. Either a warm orbit prevents the ice sheets from forming-or a present-day and colder orbits do not allow them tol:melt:after being formed. The global hemispheric temperature,, however, continues to respond directly to the atmospheric CO2-concentration changes.
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Loutre, M.-F., & Berger, A. (2000). No glacial-interglacial cycle in the ice volume simulated under a constant astronomical forcing and a variable CO2. Geophysical Research Letters, 27(6), 783-786. https://doi.org/10.1029/1999GL006081 (Original work published 2000)