Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements

Abstract A recently developed technique for microstructure measurement based on a fast-response thermistor mounted on a conductivity-temperature-depth equipment was used on eight cruises to obtain 438 profiles. Thus, the spatial distribution of turbulent dissipation rates across the North Pacific se...

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Autores principales:	Yasutaka Goto, Ichiro Yasuda, Maki Nagasawa, Shinya Kouketsu, Toshiya Nakano
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/951e41a89da84ca7a9deb22a77bfb023
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spelling	oai:doaj.org-article:951e41a89da84ca7a9deb22a77bfb0232021-12-02T14:01:20ZEstimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements10.1038/s41598-020-80029-22045-2322https://doaj.org/article/951e41a89da84ca7a9deb22a77bfb0232021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80029-2https://doaj.org/toc/2045-2322Abstract A recently developed technique for microstructure measurement based on a fast-response thermistor mounted on a conductivity-temperature-depth equipment was used on eight cruises to obtain 438 profiles. Thus, the spatial distribution of turbulent dissipation rates across the North Pacific sea floor was illustrated, and was found out to be related to results obtained using tide-induced energy dissipation and density stratification. The observed turbulence distribution was then compared with the dissipation rate based on a high-resolution numerical ocean model with tidal forcing, and discrepancies and similarities between the observed and modelled distributions were described. The turbulence intensity from observation showed that the numerical model was overestimated, and could be refined by comparing it with the observed basin-scale dissipation rate. This new method makes turbulence observations much easier and wider, significantly improving our knowledge regarding ocean mixing.Yasutaka GotoIchiro YasudaMaki NagasawaShinya KouketsuToshiya NakanoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yasutaka Goto Ichiro Yasuda Maki Nagasawa Shinya Kouketsu Toshiya Nakano Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements
description	Abstract A recently developed technique for microstructure measurement based on a fast-response thermistor mounted on a conductivity-temperature-depth equipment was used on eight cruises to obtain 438 profiles. Thus, the spatial distribution of turbulent dissipation rates across the North Pacific sea floor was illustrated, and was found out to be related to results obtained using tide-induced energy dissipation and density stratification. The observed turbulence distribution was then compared with the dissipation rate based on a high-resolution numerical ocean model with tidal forcing, and discrepancies and similarities between the observed and modelled distributions were described. The turbulence intensity from observation showed that the numerical model was overestimated, and could be refined by comparing it with the observed basin-scale dissipation rate. This new method makes turbulence observations much easier and wider, significantly improving our knowledge regarding ocean mixing.
format	article
author	Yasutaka Goto Ichiro Yasuda Maki Nagasawa Shinya Kouketsu Toshiya Nakano
author_facet	Yasutaka Goto Ichiro Yasuda Maki Nagasawa Shinya Kouketsu Toshiya Nakano
author_sort	Yasutaka Goto
title	Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements
title_short	Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements
title_full	Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements
title_fullStr	Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements
title_full_unstemmed	Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements
title_sort	estimation of basin-scale turbulence distribution in the north pacific ocean using ctd-attached thermistor measurements
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/951e41a89da84ca7a9deb22a77bfb023
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Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements

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