Spatial and temporal patterns of Southern Ocean ventilation

Ocean ventilation translates atmospheric forcing into the ocean interior. The Southern Ocean is an important ventilation site for heat and carbon and is likely to influence the outcome of anthropogenic climate change. We conduct an extensive backwards-in-time trajectory experiment to identify spatia...

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Main Authors: Styles, AF, MacGilchrist, GA, Bell, MJ, Marshall, DP
Format: Journal article
Language:English
Published: Wiley 2024
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author Styles, AF
MacGilchrist, GA
Bell, MJ
Marshall, DP
author_facet Styles, AF
MacGilchrist, GA
Bell, MJ
Marshall, DP
author_sort Styles, AF
collection OXFORD
description Ocean ventilation translates atmospheric forcing into the ocean interior. The Southern Ocean is an important ventilation site for heat and carbon and is likely to influence the outcome of anthropogenic climate change. We conduct an extensive backwards-in-time trajectory experiment to identify spatial and temporal patterns of ventilation. Temporally, almost all ventilation occurs between August and November. Spatially, “hotspots” of ventilation account for 60% of open-ocean ventilation on a 30 years timescale; the remaining 40% ventilates in a circumpolar pattern. The densest waters ventilate on the Antarctic shelf, primarily near the Antarctic Peninsula (40%) and the west Ross sea (20%); the remaining 40% is distributed across East Antarctica. Shelf-ventilated waters experience significant densification outside of the mixed layer.
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spelling oxford-uuid:5413f654-6c72-456d-a6a5-f371afde70ad2024-03-07T06:26:01ZSpatial and temporal patterns of Southern Ocean ventilationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5413f654-6c72-456d-a6a5-f371afde70adEnglishSymplectic ElementsWiley2024Styles, AFMacGilchrist, GABell, MJMarshall, DPOcean ventilation translates atmospheric forcing into the ocean interior. The Southern Ocean is an important ventilation site for heat and carbon and is likely to influence the outcome of anthropogenic climate change. We conduct an extensive backwards-in-time trajectory experiment to identify spatial and temporal patterns of ventilation. Temporally, almost all ventilation occurs between August and November. Spatially, “hotspots” of ventilation account for 60% of open-ocean ventilation on a 30 years timescale; the remaining 40% ventilates in a circumpolar pattern. The densest waters ventilate on the Antarctic shelf, primarily near the Antarctic Peninsula (40%) and the west Ross sea (20%); the remaining 40% is distributed across East Antarctica. Shelf-ventilated waters experience significant densification outside of the mixed layer.
spellingShingle Styles, AF
MacGilchrist, GA
Bell, MJ
Marshall, DP
Spatial and temporal patterns of Southern Ocean ventilation
title Spatial and temporal patterns of Southern Ocean ventilation
title_full Spatial and temporal patterns of Southern Ocean ventilation
title_fullStr Spatial and temporal patterns of Southern Ocean ventilation
title_full_unstemmed Spatial and temporal patterns of Southern Ocean ventilation
title_short Spatial and temporal patterns of Southern Ocean ventilation
title_sort spatial and temporal patterns of southern ocean ventilation
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AT macgilchristga spatialandtemporalpatternsofsouthernoceanventilation
AT bellmj spatialandtemporalpatternsofsouthernoceanventilation
AT marshalldp spatialandtemporalpatternsofsouthernoceanventilation