Sea-ice retreat suggests re-organisation of water mass transformation in the Nordic and Barents Seas

Moore, G. W. K., Våge, K., Renfrew, I. A. and Pickart, R. S. (2022) Sea-ice retreat suggests re-organisation of water mass transformation in the Nordic and Barents Seas. Nature Communications, 13. ISSN 2041-1723

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Abstract

Water mass transformation in the Nordic and Barents Seas, triggered by air-sea heat fluxes, is an integral component of the Atlantic Meridional Overturning Circulation (AMOC). These regions are undergoing rapid warming, associated with a retreat in ice cover. Here we present an analysis covering 1950−2020 of the spatiotemporal variability of the air-sea heat fluxes along the region’s boundary currents, where water mass transformation impacts are large. We find there is an increase in the air-sea heat fluxes along these currents that is a function of the currents’ orientation relative to the axis of sea-ice change suggesting enhanced water mass transformation is occurring. Previous work has shown a reduction in heat fluxes in the interior of the Nordic Seas. As a result, a reorganization seems to be underway in where water mass transformation occurs, that needs to be considered when ascertaining how the AMOC will respond to a warming climate.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: LivePure Connector
Date Deposited: 13 Nov 2021 01:51
Last Modified: 11 Jan 2022 17:50
URI: https://ueaeprints.uea.ac.uk/id/eprint/82088
DOI: 10.1038/s41467-021-27641-6

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