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Dynamics of Langmuir Supercells in the Coastal Ocean.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Dynamics of Langmuir Supercells in the Coastal Ocean./
Author:	Teixeira Gomes de Melo, Yargo.
Description:	1 online resource (169 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-12, Section: B.
Contained By:	Dissertations Abstracts International84-12B.
Subject:	Fluid mechanics. -
Online resource:	click for full text (PQDT)
ISBN:	9798379691387

Dynamics of Langmuir Supercells in the Coastal Ocean.
Teixeira Gomes de Melo, Yargo.

Dynamics of Langmuir Supercells in the Coastal Ocean. - 1 online resource (169 pages)

Source: Dissertations Abstracts International, Volume: 84-12, Section: B.

Thesis (Ph.D.)--University of Georgia, 2023.

Includes bibliographical references

Langmuir circulations (LC) are phenomena that impact the mixing and transport of gases, heat, and momentum in the uppermost layer of the ocean. They appear as pairs of counterrotating vortices on the ocean surface, parallel to the direction of the wind. Recent studies have shown that in the coastal ocean, LC can extend through the entire water column under strong wind-wave conditions, forming Langmuir Supercells (LSC). LSCs drive significant mixing and transport not only in the surface layer of the ocean, but also in the bottom boundary layer, where wave mobilized sediments can be carried upwards. By analyzing velocity profiles and meteorological auxiliary data at different sites, researchers can better understand the dynamics and impact of LSC. This dissertation examines Langmuir Supercells to understand their behavior under different forcing conditions, how to evaluate them, and their structural organization at varying depths, including full parametrization and analysis of the deepest recorded LSC event to date. Herein I 1) propose a novel method of separation of waves and turbulence using rotary spectra analysis, 2) demonstrate existence of LSC events in a 40 m depth site while providing full parametrization, 3) propose a novel method to estimate heat flux sans pyranometry, and 4) examine and apply current methods to estimate organization of LSC to study effects of organization of LSC at varying depths.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379691387Subjects--Topical Terms:

555551
Fluid mechanics.
Subjects--Index Terms:

ADCPIndex Terms--Genre/Form:

554714
Electronic books.

Dynamics of Langmuir Supercells in the Coastal Ocean.
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502 $a Thesis (Ph.D.)--University of Georgia, 2023.
504 $a Includes bibliographical references
520 $a Langmuir circulations (LC) are phenomena that impact the mixing and transport of gases, heat, and momentum in the uppermost layer of the ocean. They appear as pairs of counterrotating vortices on the ocean surface, parallel to the direction of the wind. Recent studies have shown that in the coastal ocean, LC can extend through the entire water column under strong wind-wave conditions, forming Langmuir Supercells (LSC). LSCs drive significant mixing and transport not only in the surface layer of the ocean, but also in the bottom boundary layer, where wave mobilized sediments can be carried upwards. By analyzing velocity profiles and meteorological auxiliary data at different sites, researchers can better understand the dynamics and impact of LSC. This dissertation examines Langmuir Supercells to understand their behavior under different forcing conditions, how to evaluate them, and their structural organization at varying depths, including full parametrization and analysis of the deepest recorded LSC event to date. Herein I 1) propose a novel method of separation of waves and turbulence using rotary spectra analysis, 2) demonstrate existence of LSC events in a 40 m depth site while providing full parametrization, 3) propose a novel method to estimate heat flux sans pyranometry, and 4) examine and apply current methods to estimate organization of LSC to study effects of organization of LSC at varying depths.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
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653 $a Langmuir circulation
653 $a Turbulence
653 $a Wind stress
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