Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data
The Caribbean Sea serves as a major pathway for global thermohaline circulation (THC), which is a complex and vital component of the Earth’s climate system, influencing global heat distribution and oceanic circulation. Though relatively stratified, it is the boundary layer that distributes mass an...
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ftsmuniv:oai:scholar.smu.edu:hum_sci_earthsciences_etds-1034 2024-09-09T19:57:58+00:00 Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data Renzaglia, Joseph 2023-12-16T08:00:00Z application/pdf https://scholar.smu.edu/hum_sci_earthsciences_etds/32 https://scholar.smu.edu/context/hum_sci_earthsciences_etds/article/1034/viewcontent/Final_Thesis.pdf unknown SMU Scholar https://scholar.smu.edu/hum_sci_earthsciences_etds/32 https://scholar.smu.edu/context/hum_sci_earthsciences_etds/article/1034/viewcontent/Final_Thesis.pdf http://creativecommons.org/licenses/by-nc/4.0/ Earth Sciences Theses and Dissertations Geophysics and Seismology text 2023 ftsmuniv 2024-06-18T14:19:34Z The Caribbean Sea serves as a major pathway for global thermohaline circulation (THC), which is a complex and vital component of the Earth’s climate system, influencing global heat distribution and oceanic circulation. Though relatively stratified, it is the boundary layer that distributes mass and temperature between the surface waters and the deep ocean where we observe various multiscale mixing processes from mesoscale to fine-scale. In regions where bathymetry is shallower and mechanical mixing forces, such as winds and tides, are more dominant, diapycnal diffusivity is typically stronger, driving vertical mixing. This type of mixing occurs at small scales, typically as internal waves break within the internal ocean, making it difficult to quantify and observe. Through the combination of seismic images and oceanographic data, known as seismic oceanography, we can qualitatively and quantitatively observe the variability of the ocean’s internal wave field and its diverse components, which include the turbulent and internal wave subranges from vertical displacement spectra. Exploiting these subranges allows us to quantify vertical mixing behaviors across isopycnal layers, effectively representing the cascade of energy for mixing. Quantitatively constraining these energy components is essential to comprehensively understand the total energy budget of the THC. This research focuses on mapping and quantifying diapycnal diffusivity in the southeastern Caribbean Sea, a region characterized by the convergence of two primary water masses, North Atlantic water (NAW), and South Atlantic water (SAW), as they spill into the Caribbean Sea through the Lesser Antilles passages. This convergence introduces perturbations in temperature, salinity, and nutrients, resulting in the formation of the Caribbean Current. The current’s predominant westward direction, driven by surface winds, is influenced at depth by interactions with deeper water masses and the irregular coastal bathymetry. We utilize five seismic profiles, ... Text North Atlantic Southern Methodist University: SMU Digital Repository |
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Southern Methodist University: SMU Digital Repository |
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Geophysics and Seismology |
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Geophysics and Seismology Renzaglia, Joseph Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data |
topic_facet |
Geophysics and Seismology |
description |
The Caribbean Sea serves as a major pathway for global thermohaline circulation (THC), which is a complex and vital component of the Earth’s climate system, influencing global heat distribution and oceanic circulation. Though relatively stratified, it is the boundary layer that distributes mass and temperature between the surface waters and the deep ocean where we observe various multiscale mixing processes from mesoscale to fine-scale. In regions where bathymetry is shallower and mechanical mixing forces, such as winds and tides, are more dominant, diapycnal diffusivity is typically stronger, driving vertical mixing. This type of mixing occurs at small scales, typically as internal waves break within the internal ocean, making it difficult to quantify and observe. Through the combination of seismic images and oceanographic data, known as seismic oceanography, we can qualitatively and quantitatively observe the variability of the ocean’s internal wave field and its diverse components, which include the turbulent and internal wave subranges from vertical displacement spectra. Exploiting these subranges allows us to quantify vertical mixing behaviors across isopycnal layers, effectively representing the cascade of energy for mixing. Quantitatively constraining these energy components is essential to comprehensively understand the total energy budget of the THC. This research focuses on mapping and quantifying diapycnal diffusivity in the southeastern Caribbean Sea, a region characterized by the convergence of two primary water masses, North Atlantic water (NAW), and South Atlantic water (SAW), as they spill into the Caribbean Sea through the Lesser Antilles passages. This convergence introduces perturbations in temperature, salinity, and nutrients, resulting in the formation of the Caribbean Current. The current’s predominant westward direction, driven by surface winds, is influenced at depth by interactions with deeper water masses and the irregular coastal bathymetry. We utilize five seismic profiles, ... |
format |
Text |
author |
Renzaglia, Joseph |
author_facet |
Renzaglia, Joseph |
author_sort |
Renzaglia, Joseph |
title |
Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data |
title_short |
Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data |
title_full |
Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data |
title_fullStr |
Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data |
title_full_unstemmed |
Transport and Mixing of Water Masses Across the Southeast Caribbean Ocean Imaged by Seismic Reflection Data |
title_sort |
transport and mixing of water masses across the southeast caribbean ocean imaged by seismic reflection data |
publisher |
SMU Scholar |
publishDate |
2023 |
url |
https://scholar.smu.edu/hum_sci_earthsciences_etds/32 https://scholar.smu.edu/context/hum_sci_earthsciences_etds/article/1034/viewcontent/Final_Thesis.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Earth Sciences Theses and Dissertations |
op_relation |
https://scholar.smu.edu/hum_sci_earthsciences_etds/32 https://scholar.smu.edu/context/hum_sci_earthsciences_etds/article/1034/viewcontent/Final_Thesis.pdf |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
_version_ |
1809928924546727936 |