Articles | Volume 16, issue 6
Clim. Past, 16, 2183–2201, 2020
https://doi.org/10.5194/cp-16-2183-2020
Clim. Past, 16, 2183–2201, 2020
https://doi.org/10.5194/cp-16-2183-2020
Research article
13 Nov 2020
Research article | 13 Nov 2020

Simulating Marine Isotope Stage 7 with a coupled climate–ice sheet model

Dipayan Choudhury et al.

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Short summary
Our study is the first study to conduct transient simulations over MIS 7, using a 3-D coupled climate–ice sheet model with interactive ice sheets in both hemispheres. We find glacial inceptions to be more sensitive to orbital variations, whereas glacial terminations need the concerted action of both orbital and CO2 forcings. We highlight the issue of multiple equilibria and an instability due to stationary-wave–topography feedback that can trigger unrealistic North American ice sheet growth.