Abstract

This study presents novel insight into the mechanisms of Atlantic Meridional Overturning Circulation (AMOC) reduction and its recovery under a warmer climate scenario. An one-thousand-year-long numerical simulation of a global coupled ocean–ice–atmosphere climate model, subjected to a stationary atmospheric radiative forcing, depict a coherent picture of the Arctic sea ice melting as a trigger for the initial AMOC reduction, along with decreases in the northward fluxes of salt and heat. Further atmospheric-driven ocean processes contribute to an erosion of the stable stratification of the fresher, yet colder waters in the surface layers of the North Atlantic, contributing to the recovery of a permanently altered AMOC.

Details

Title
AMOC decline and recovery in a warmer climate
Author
Nobre, Paulo 1 ; Veiga, Sandro F. 2 ; Giarolla, Emanuel 1 ; Marquez, André L. 1 ; da Silva, Manoel B. 1 ; Capistrano, Vinícius B. 3 ; Malagutti, Marta 1 ; Fernandez, Julio P. R. 1 ; Soares, Helena C. 1 ; Bottino, Marcus J. 1 ; Kubota, Paulo Y. 1 ; Figueroa, Silvio N. 1 ; Bonatti, José P. 1 ; Sampaio, Gilvan 1 ; Casagrande, Fernanda 1 ; Costa, Mabel C. 1 ; Nobre, Carlos A. 4 

 National Institute for Space Research (INPE), Center for Weather Forecasting and Climate Studies (CPTEC), Cachoeira Paulista, Brazil (GRID:grid.419222.e) (ISNI:0000 0001 2116 4512) 
 Nanjing University, School of Atmospheric Sciences and Key Laboratory of Mesoscale Severe Weather/Ministry of Education, Nanjing, China (GRID:grid.41156.37) (ISNI:0000 0001 2314 964X) 
 Federal University of Mato Grosso do Sul (UFMS), Institute of Physics, Campo Grande, Brazil (GRID:grid.412352.3) (ISNI:0000 0001 2163 5978) 
 University of São Paulo, Institute for Advanced Studies, São Paulo, Brazil (GRID:grid.11899.38) (ISNI:0000 0004 1937 0722) 
Pages
15928
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2867651995
Copyright
© Springer Nature Limited 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.