Publications
Key publications | Publications by category | Publications by year
Publications by category
Journal articles
Arellano-Nava B, Halloran PR, Boulton CA, Scourse J, Butler PG, Reynolds DJ, Lenton TM (2022). Destabilisation of the Subpolar North Atlantic prior to the Little Ice Age.
Nature Communications,
13(1).
Abstract:
Destabilisation of the Subpolar North Atlantic prior to the Little Ice Age
AbstractThe cooling transition into the Little Ice Age was the last notable shift in the climate system prior to anthropogenic global warming. It is hypothesised that sea-ice to ocean feedbacks sustained an initial cooling into the Little Ice Age by weakening the subpolar gyre circulation; a system that has been proposed to exhibit bistability. Empirical evidence for bistability within this transition has however been lacking. Using statistical indicators of resilience in three annually-resolved bivalve proxy records from the North Icelandic shelf, we show that the subpolar North Atlantic climate system destabilised during two episodes prior to the Little Ice Age. This loss of resilience indicates reduced attraction to one stable state, and a system vulnerable to an abrupt transition. The two episodes preceded wider subpolar North Atlantic change, consistent with subpolar gyre destabilisation and the approach of a tipping point, potentially heralding the transition to Little Ice Age conditions.
Abstract.
Publications by year
2022
Arellano-Nava B, Halloran PR, Boulton CA, Scourse J, Butler PG, Reynolds DJ, Lenton TM (2022). Destabilisation of the Subpolar North Atlantic prior to the Little Ice Age.
Nature Communications,
13(1).
Abstract:
Destabilisation of the Subpolar North Atlantic prior to the Little Ice Age
AbstractThe cooling transition into the Little Ice Age was the last notable shift in the climate system prior to anthropogenic global warming. It is hypothesised that sea-ice to ocean feedbacks sustained an initial cooling into the Little Ice Age by weakening the subpolar gyre circulation; a system that has been proposed to exhibit bistability. Empirical evidence for bistability within this transition has however been lacking. Using statistical indicators of resilience in three annually-resolved bivalve proxy records from the North Icelandic shelf, we show that the subpolar North Atlantic climate system destabilised during two episodes prior to the Little Ice Age. This loss of resilience indicates reduced attraction to one stable state, and a system vulnerable to an abrupt transition. The two episodes preceded wider subpolar North Atlantic change, consistent with subpolar gyre destabilisation and the approach of a tipping point, potentially heralding the transition to Little Ice Age conditions.
Abstract.
Beatriz_ArellanoNava Details from cache as at 2023-10-01 10:55:49
Refresh publications