Improving the thermocline calculation over the global ocean
According to the typical thermal structure of the ocean, the water column can be divided into three layers: the mixed layer, the thermocline and the deep layer. In this study, we provide a new methodology, based on a function adjustment to the temperature profile, to locate the minimum and maximum d...
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2023
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00067236 2023-07-16T03:59:52+02:00 Improving the thermocline calculation over the global ocean Romero, Emmanuel Tenorio-Fernandez, Leonardo Portela, Esther Montes-Aréchiga, Jorge Sánchez-Velasco, Laura 2023-06 electronic https://doi.org/10.5194/os-19-887-2023 https://noa.gwlb.de/receive/cop_mods_00067236 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00065700/os-19-887-2023.pdf https://os.copernicus.org/articles/19/887/2023/os-19-887-2023.pdf eng eng Copernicus Publications Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-19-887-2023 https://noa.gwlb.de/receive/cop_mods_00067236 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00065700/os-19-887-2023.pdf https://os.copernicus.org/articles/19/887/2023/os-19-887-2023.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/os-19-887-2023 2023-06-25T23:18:50Z According to the typical thermal structure of the ocean, the water column can be divided into three layers: the mixed layer, the thermocline and the deep layer. In this study, we provide a new methodology, based on a function adjustment to the temperature profile, to locate the minimum and maximum depths of the strongest thermocline. We first validated our methodology by comparing the mixed layer depth obtained with the method proposed here with three other methods from previous studies. Since we found a very good agreement between the four methods we used the function adjustment to compute the monthly climatologies of the maximum thermocline depth and the thermocline thickness and strength in the global ocean. We also provide an assessment of the regions of the ocean where our adjustment is valid, i.e., where the thermal structure of the ocean follows the three-layer structure. However, there are ocean regions where the water column cannot be separated into three layers due to the dynamic processes that alter it. This assessment highlights the limitations of the existing methods to accurately determine the mixed layer depth and the thermocline depth in oceanic regions that are particularly turbulent such as the Southern Ocean and the northern North Atlantic, among others. The method proposed here has shown to be robust and easy to apply. Article in Journal/Newspaper North Atlantic Southern Ocean Niedersächsisches Online-Archiv NOA Southern Ocean Ocean Science 19 3 887 901 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Romero, Emmanuel Tenorio-Fernandez, Leonardo Portela, Esther Montes-Aréchiga, Jorge Sánchez-Velasco, Laura Improving the thermocline calculation over the global ocean |
topic_facet |
article Verlagsveröffentlichung |
description |
According to the typical thermal structure of the ocean, the water column can be divided into three layers: the mixed layer, the thermocline and the deep layer. In this study, we provide a new methodology, based on a function adjustment to the temperature profile, to locate the minimum and maximum depths of the strongest thermocline. We first validated our methodology by comparing the mixed layer depth obtained with the method proposed here with three other methods from previous studies. Since we found a very good agreement between the four methods we used the function adjustment to compute the monthly climatologies of the maximum thermocline depth and the thermocline thickness and strength in the global ocean. We also provide an assessment of the regions of the ocean where our adjustment is valid, i.e., where the thermal structure of the ocean follows the three-layer structure. However, there are ocean regions where the water column cannot be separated into three layers due to the dynamic processes that alter it. This assessment highlights the limitations of the existing methods to accurately determine the mixed layer depth and the thermocline depth in oceanic regions that are particularly turbulent such as the Southern Ocean and the northern North Atlantic, among others. The method proposed here has shown to be robust and easy to apply. |
format |
Article in Journal/Newspaper |
author |
Romero, Emmanuel Tenorio-Fernandez, Leonardo Portela, Esther Montes-Aréchiga, Jorge Sánchez-Velasco, Laura |
author_facet |
Romero, Emmanuel Tenorio-Fernandez, Leonardo Portela, Esther Montes-Aréchiga, Jorge Sánchez-Velasco, Laura |
author_sort |
Romero, Emmanuel |
title |
Improving the thermocline calculation over the global ocean |
title_short |
Improving the thermocline calculation over the global ocean |
title_full |
Improving the thermocline calculation over the global ocean |
title_fullStr |
Improving the thermocline calculation over the global ocean |
title_full_unstemmed |
Improving the thermocline calculation over the global ocean |
title_sort |
improving the thermocline calculation over the global ocean |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/os-19-887-2023 https://noa.gwlb.de/receive/cop_mods_00067236 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00065700/os-19-887-2023.pdf https://os.copernicus.org/articles/19/887/2023/os-19-887-2023.pdf |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_relation |
Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-19-887-2023 https://noa.gwlb.de/receive/cop_mods_00067236 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00065700/os-19-887-2023.pdf https://os.copernicus.org/articles/19/887/2023/os-19-887-2023.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/os-19-887-2023 |
container_title |
Ocean Science |
container_volume |
19 |
container_issue |
3 |
container_start_page |
887 |
op_container_end_page |
901 |
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1771548201409576960 |