Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations"
These are the data used in the analysis and creation of figures in du Plessis et al. 2022: The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations in support of open-code, transparency, and repeatability. Abstract: Water mass transformation in the Souther...
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ftdatacite:10.5281/zenodo.5079762 2023-05-15T18:18:11+02:00 Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations" du Plessis, Marcel 2022 https://dx.doi.org/10.5281/zenodo.5079762 https://zenodo.org/record/5079762 en eng Zenodo https://dx.doi.org/10.5281/zenodo.5079763 Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess CC-BY Dataset dataset 2022 ftdatacite https://doi.org/10.5281/zenodo.5079762 https://doi.org/10.5281/zenodo.5079763 2022-04-01T17:33:06Z These are the data used in the analysis and creation of figures in du Plessis et al. 2022: The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations in support of open-code, transparency, and repeatability. Abstract: Water mass transformation in the Southern Ocean is vital for driving the large-scale overturning circulation, which transports heat from the surface to the ocean interior. Using profiling gliders, this study investigates the role of summertime buoyancy forcing and wind-driven processes on the intraseasonal (1-10 days) mixed layer thermohaline variability in three Southern Ocean regions southwest of Africa important for water mass transformation - the Subantarctic Zone (SAZ), Polar Frontal Zone (PFZ) and Marginal Ice Zone (MIZ). At intraseasonal time scales, heat flux was shown as the main driver of buoyancy gain in all regions. In the SAZ and MIZ, shallow mixed layers and strong stratification enhanced mixed layer buoyancy gain by trapping incoming heat, while buoyancy loss resulted primarily from the entrainment of cold, salty water from below. In the PFZ, rapid mixing linked to Southern Ocean storms set persistently deep mixed layers and suppressed mixed layer intraseasonal (1-10 days) thermohaline variability. In the polar regions, lateral stirring of meltwater from seasonal sea-ice melt dominated daily mixed layer salinity variability. We propose that these meltwater fronts are advected to the PFZ during late summer, indicating the potential for seasonal sea-ice freshwater to impact a region where the upwelling limb of overturning circulation reaches the surface. This study reveals a regional dependence of how the mixed layer thermohaline properties respond to small spatio-temporal processes, emphasizing the importance of surface forcing occurring between 1-10 days on the mixed layer water mass transformation in the Southern Ocean. Related code: The accompanying code can be found at: http://doi.org/10.5281/zenodo.5076119. Navigate to github.com/marcelduplessis/duplessis-2021-SO-thermohaline for the latest version Dataset Sea ice Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
These are the data used in the analysis and creation of figures in du Plessis et al. 2022: The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations in support of open-code, transparency, and repeatability. Abstract: Water mass transformation in the Southern Ocean is vital for driving the large-scale overturning circulation, which transports heat from the surface to the ocean interior. Using profiling gliders, this study investigates the role of summertime buoyancy forcing and wind-driven processes on the intraseasonal (1-10 days) mixed layer thermohaline variability in three Southern Ocean regions southwest of Africa important for water mass transformation - the Subantarctic Zone (SAZ), Polar Frontal Zone (PFZ) and Marginal Ice Zone (MIZ). At intraseasonal time scales, heat flux was shown as the main driver of buoyancy gain in all regions. In the SAZ and MIZ, shallow mixed layers and strong stratification enhanced mixed layer buoyancy gain by trapping incoming heat, while buoyancy loss resulted primarily from the entrainment of cold, salty water from below. In the PFZ, rapid mixing linked to Southern Ocean storms set persistently deep mixed layers and suppressed mixed layer intraseasonal (1-10 days) thermohaline variability. In the polar regions, lateral stirring of meltwater from seasonal sea-ice melt dominated daily mixed layer salinity variability. We propose that these meltwater fronts are advected to the PFZ during late summer, indicating the potential for seasonal sea-ice freshwater to impact a region where the upwelling limb of overturning circulation reaches the surface. This study reveals a regional dependence of how the mixed layer thermohaline properties respond to small spatio-temporal processes, emphasizing the importance of surface forcing occurring between 1-10 days on the mixed layer water mass transformation in the Southern Ocean. Related code: The accompanying code can be found at: http://doi.org/10.5281/zenodo.5076119. Navigate to github.com/marcelduplessis/duplessis-2021-SO-thermohaline for the latest version |
format |
Dataset |
author |
du Plessis, Marcel |
spellingShingle |
du Plessis, Marcel Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations" |
author_facet |
du Plessis, Marcel |
author_sort |
du Plessis, Marcel |
title |
Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations" |
title_short |
Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations" |
title_full |
Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations" |
title_fullStr |
Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations" |
title_full_unstemmed |
Data used in "The daily-resolved Southern Ocean mixed layer: regional contrasts assessed using glider observations" |
title_sort |
data used in "the daily-resolved southern ocean mixed layer: regional contrasts assessed using glider observations" |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://dx.doi.org/10.5281/zenodo.5079762 https://zenodo.org/record/5079762 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Sea ice Southern Ocean |
genre_facet |
Sea ice Southern Ocean |
op_relation |
https://dx.doi.org/10.5281/zenodo.5079763 |
op_rights |
Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.5079762 https://doi.org/10.5281/zenodo.5079763 |
_version_ |
1766194665213657088 |