Observed three dimensional distributions of enhanced turbulence near the Luzon Strait

Abstract Ocean turbulence can impact the transfer of heat, nutrients, momentum and sea level rise, which are crucially important to climate systems. The Luzon Strait, one of the mixing hotspots, is important for water exchange between the northeastern South China Sea and West Pacific. Here, for the...

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Autores principales:	Jianfeng Wang, Fei Yu, Feng Nan, Qiang Ren, Zifei Chen, Tongtong Zheng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/097551accb0749aba1635d4dca4afeb1
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spelling	oai:doaj.org-article:097551accb0749aba1635d4dca4afeb12021-12-02T16:50:23ZObserved three dimensional distributions of enhanced turbulence near the Luzon Strait10.1038/s41598-021-94223-32045-2322https://doaj.org/article/097551accb0749aba1635d4dca4afeb12021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94223-3https://doaj.org/toc/2045-2322Abstract Ocean turbulence can impact the transfer of heat, nutrients, momentum and sea level rise, which are crucially important to climate systems. The Luzon Strait, one of the mixing hotspots, is important for water exchange between the northeastern South China Sea and West Pacific. Here, for the first time, we carry out full-depth direct microstructure measurements surrounding the Luzon Strait to clarify the three-dimensional distributions of turbulence. We demonstrate that the turbulent kinetic energy dissipation rates in the upper and middle layers of the northeastern South China Sea are on the same order of magnitude as those in the West Pacific. The dissipation rates are only bottom enhanced near the rough topography of the South China Sea slope and Luzon Strait which is one order of magnitude larger than those at smooth area. The relevant bottom diapycnal diffusivity in the South China Sea is elevated in the West Pacific by a factor of three, instead of by two orders of magnitude as overestimated by indirect parameterization. These results may appear surprising in light of previous studies but are in fact consistent with predictions from internal wave-topography interaction theory.Jianfeng WangFei YuFeng NanQiang RenZifei ChenTongtong ZhengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jianfeng Wang Fei Yu Feng Nan Qiang Ren Zifei Chen Tongtong Zheng Observed three dimensional distributions of enhanced turbulence near the Luzon Strait
description	Abstract Ocean turbulence can impact the transfer of heat, nutrients, momentum and sea level rise, which are crucially important to climate systems. The Luzon Strait, one of the mixing hotspots, is important for water exchange between the northeastern South China Sea and West Pacific. Here, for the first time, we carry out full-depth direct microstructure measurements surrounding the Luzon Strait to clarify the three-dimensional distributions of turbulence. We demonstrate that the turbulent kinetic energy dissipation rates in the upper and middle layers of the northeastern South China Sea are on the same order of magnitude as those in the West Pacific. The dissipation rates are only bottom enhanced near the rough topography of the South China Sea slope and Luzon Strait which is one order of magnitude larger than those at smooth area. The relevant bottom diapycnal diffusivity in the South China Sea is elevated in the West Pacific by a factor of three, instead of by two orders of magnitude as overestimated by indirect parameterization. These results may appear surprising in light of previous studies but are in fact consistent with predictions from internal wave-topography interaction theory.
format	article
author	Jianfeng Wang Fei Yu Feng Nan Qiang Ren Zifei Chen Tongtong Zheng
author_facet	Jianfeng Wang Fei Yu Feng Nan Qiang Ren Zifei Chen Tongtong Zheng
author_sort	Jianfeng Wang
title	Observed three dimensional distributions of enhanced turbulence near the Luzon Strait
title_short	Observed three dimensional distributions of enhanced turbulence near the Luzon Strait
title_full	Observed three dimensional distributions of enhanced turbulence near the Luzon Strait
title_fullStr	Observed three dimensional distributions of enhanced turbulence near the Luzon Strait
title_full_unstemmed	Observed three dimensional distributions of enhanced turbulence near the Luzon Strait
title_sort	observed three dimensional distributions of enhanced turbulence near the luzon strait
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/097551accb0749aba1635d4dca4afeb1
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Observed three dimensional distributions of enhanced turbulence near the Luzon Strait

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