Arrival of new great salinity anomaly weakens convection in the Irminger Sea

dc.contributor.author Biló, Tiago C.
dc.contributor.author Straneo, Fiamma
dc.contributor.author Holte, James W.
dc.contributor.author Le Bras, Isabela A.
dc.date.accessioned 2022-10-04T18:49:36Z
dc.date.available 2022-10-04T18:49:36Z
dc.date.issued 2022-06-06
dc.description © The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Biló, T., Straneo, F., Holte, J., & Le Bras, I. Arrival of new great salinity anomaly weakens convection in the Irminger Sea. Geophysical Research Letters, 49(11), (2022): e2022GL098857, https://doi.org/10.1029/2022gl098857. en_US
dc.description.abstract The Subpolar North Atlantic is prone to recurrent extreme freshening events called Great Salinity Anomalies (GSAs). Here, we combine hydrographic ocean analyses and moored observations to document the arrival, spreading, and impacts of the most recent GSA in the Irminger Sea. This GSA is associated with a rapid freshening of the upper Irminger Sea between 2015 and 2020, culminating in annually averaged salinities as low as the freshest years of the 1990s and possibly since 1960. Upon the GSA propagation into the Irminger Sea over the Reykjanes Ridge, the boundary currents rapidly advected its signal around the basin within months while fresher waters slowly spread and accumulated into the interior. The anomalies in the interior freshened waters produced by deep convection during the 2017–2018 winter and actively contributed to the suppression of deep convection in the following two winters. en_US
dc.description.sponsorship We gratefully acknowledge the US National Science Foundation for funding this work under grants OCE-1258823, OCE-1756272, OCE-1948335, and OCE-2038481. en_US
dc.identifier.citation Biló, T., Straneo, F., Holte, J., & Le Bras, I. (2022). Arrival of new great salinity anomaly weakens convection in the Irminger Sea. Geophysical Research Letters, 49(11), e2022GL098857. en_US
dc.identifier.doi 10.1029/2022gl098857
dc.identifier.uri https://hdl.handle.net/1912/29384
dc.publisher American Geophysical Union en_US
dc.relation.uri https://doi.org/10.1029/2022gl098857
dc.rights Attribution 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ *
dc.title Arrival of new great salinity anomaly weakens convection in the Irminger Sea en_US
dc.type Article en_US
dspace.entity.type Publication
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relation.isAuthorOfPublication.latestForDiscovery 2ed34041-c9b6-4eb7-84cb-aefcd1abe422
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