Miocene Antarctic Ice Sheet area adapts significantly faster than volume to CO<sub>2</sub>-induced climate change

Abstract δ 18 2, no ice) and cold (low CO2, large East AIS) climate snapshots. These simulations comprise equilibrium and idealized quasi-orbital transient runs with strongly varying CO2 levels (280 to 840 ppm). Our simulations show a limited direct effect of East AIS changes on Miocene orbital-timescale benthic δ 18 O variability because of the slow build-up of volume. However, we find that relative to the equilibrium ice sheet size, the AIS area adapts significantly faster and more strongly than volume to the applied forcing variability. Consequently, during certain intervals the ice sheet is receding at the margins, while ice is still building up in the interior. That means the AIS does not adapt to a changing equilibrium size at the same rate or with the same sign everywhere. Our results indicate that the Miocene Antarctic Ice Sheet affects deep-ocean temperatures more than its volume suggests.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Miocene Antarctic Ice Sheet area adapts significantly faster than volume to CO2-induced climate change ; volume:20 ; number:1 ; year:2024 ; pages:257-266 ; extent:10
Climate of the past ; 20, Heft 1 (2024), 257-266 (gesamt 10)

Creator
Stap, Lennert
Berends, Constantijn J.
van de Wal, Roderik S. W.

DOI
10.5194/cp-20-257-2024
URN
urn:nbn:de:101:1-2024020103144241954386
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:35 AM CEST

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Associated

  • Stap, Lennert
  • Berends, Constantijn J.
  • van de Wal, Roderik S. W.

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