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Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010)

Understanding (230)Th distributions in the global ocean is important to support and guide the use of this important radioactive nuclide in multiple aspects of oceanographic research, and this issue is now revisited. Based on estimates of export productivity (EP) over 2003–2010 and assuming (230)Th s...

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Autor principal: Luo, Yiming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428837/
https://www.ncbi.nlm.nih.gov/pubmed/28356559
http://dx.doi.org/10.1038/s41598-017-00604-y
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author Luo, Yiming
author_facet Luo, Yiming
author_sort Luo, Yiming
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description Understanding (230)Th distributions in the global ocean is important to support and guide the use of this important radioactive nuclide in multiple aspects of oceanographic research, and this issue is now revisited. Based on estimates of export productivity (EP) over 2003–2010 and assuming (230)Th scavenging at equilibrium at seven Pacific stations where linear (230)Th profiles are found, an empirical equilibrium-state (230)Th-scavenging versus EP correlation is established. This correlation demonstrates the relationship between (230)Th-scavenging intensity and EP in the absence of advection. With this correlation, other (230)Th profiles from global oceans are reinterpreted. My findings provide alternative explanations of signals carried by (230)Th distributions with regard to advection, by a reassessment of the (230)Th deficits in deep waters. Such an equilibrium-state (230)Th-scavenging versus EP correlation provides a basis for convenient parameterization for use in 3D modeling studies of the (230)Th distributions.
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spelling pubmed-54288372017-05-15 Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010) Luo, Yiming Sci Rep Article Understanding (230)Th distributions in the global ocean is important to support and guide the use of this important radioactive nuclide in multiple aspects of oceanographic research, and this issue is now revisited. Based on estimates of export productivity (EP) over 2003–2010 and assuming (230)Th scavenging at equilibrium at seven Pacific stations where linear (230)Th profiles are found, an empirical equilibrium-state (230)Th-scavenging versus EP correlation is established. This correlation demonstrates the relationship between (230)Th-scavenging intensity and EP in the absence of advection. With this correlation, other (230)Th profiles from global oceans are reinterpreted. My findings provide alternative explanations of signals carried by (230)Th distributions with regard to advection, by a reassessment of the (230)Th deficits in deep waters. Such an equilibrium-state (230)Th-scavenging versus EP correlation provides a basis for convenient parameterization for use in 3D modeling studies of the (230)Th distributions. Nature Publishing Group UK 2017-03-29 /pmc/articles/PMC5428837/ /pubmed/28356559 http://dx.doi.org/10.1038/s41598-017-00604-y Text en © The Author(s) 2017 This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Luo, Yiming
Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010)
title Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010)
title_full Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010)
title_fullStr Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010)
title_full_unstemmed Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010)
title_short Reinterpretation of oceanic (230)Th profiles based on decadal export productivity (2003–2010)
title_sort reinterpretation of oceanic (230)th profiles based on decadal export productivity (2003–2010)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428837/
https://www.ncbi.nlm.nih.gov/pubmed/28356559
http://dx.doi.org/10.1038/s41598-017-00604-y
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