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Temporal and Vertical Patterns in Oceanographic Features of the Gulf Stream over the Continental Slope near Cape Hatteras, North Carolina, USA.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Temporal and Vertical Patterns in Oceanographic Features of the Gulf Stream over the Continental Slope near Cape Hatteras, North Carolina, USA./
作者:	Abidari, Simeon Alexander.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
面頁冊數:	60 p.
附註:	Source: Masters Abstracts International, Volume: 83-11.
Contained By:	Masters Abstracts International83-11.
標題:	Physical oceanography. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29169405
ISBN:	9798438721741

Temporal and Vertical Patterns in Oceanographic Features of the Gulf Stream over the Continental Slope near Cape Hatteras, North Carolina, USA.
Abidari, Simeon Alexander.

Temporal and Vertical Patterns in Oceanographic Features of the Gulf Stream over the Continental Slope near Cape Hatteras, North Carolina, USA. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 60 p.

Source: Masters Abstracts International, Volume: 83-11.

Thesis (M.S.M.S.)--Savannah State University, 2022.

This item must not be sold to any third party vendors.

The Cape Hatteras shelf-slope region is known for a complex exchange of waters involving the Gulf Stream current as well as the convergence of Mid Atlantic Bight and South Atlantic Bight waters. The region is also one of high biodiversity, supporting a food web that notably includes large marine mammalian predators and their prey. Previous studies have determined patterns of variability from the shelf and slope waters using current meter moorings, shipboard acoustic Doppler current profilers (ADCP), and towed conductivity temperature depth (CTD) devices. The purpose of this study was to determine the temporal scales of variability for the entire water column in over 900 m depth due to the movement of the Gulf Stream and surrounding waters. A single bio-physical mooring with CTDs and upward and downward facing mid-water ADCPs was used to record temperature, salinity, density, and current velocity data from 7 March, 2016 through 24 May, 2017. Principal component analysis and time series analysis were used to detect water column fronts through changes in temporal gradients of these variables. Spectral analyses of current velocity indicated approximately 1-week long increases and decreases in current velocity in the upper water column, with surface current velocities ranging from hundreds of mm/s to over 2 m/s depending on depth and timing. This study represents the first use of a multi-sensor, taut-wired mooring system to determine temporal variability patterns throughout the entire water column on the continental slope near Cape Hatteras over an extended duration.

ISBN: 9798438721741Subjects--Topical Terms:

3168433
Physical oceanography.
Subjects--Index Terms:

Gulf Stream

Temporal and Vertical Patterns in Oceanographic Features of the Gulf Stream over the Continental Slope near Cape Hatteras, North Carolina, USA.
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520 $a The Cape Hatteras shelf-slope region is known for a complex exchange of waters involving the Gulf Stream current as well as the convergence of Mid Atlantic Bight and South Atlantic Bight waters. The region is also one of high biodiversity, supporting a food web that notably includes large marine mammalian predators and their prey. Previous studies have determined patterns of variability from the shelf and slope waters using current meter moorings, shipboard acoustic Doppler current profilers (ADCP), and towed conductivity temperature depth (CTD) devices. The purpose of this study was to determine the temporal scales of variability for the entire water column in over 900 m depth due to the movement of the Gulf Stream and surrounding waters. A single bio-physical mooring with CTDs and upward and downward facing mid-water ADCPs was used to record temperature, salinity, density, and current velocity data from 7 March, 2016 through 24 May, 2017. Principal component analysis and time series analysis were used to detect water column fronts through changes in temporal gradients of these variables. Spectral analyses of current velocity indicated approximately 1-week long increases and decreases in current velocity in the upper water column, with surface current velocities ranging from hundreds of mm/s to over 2 m/s depending on depth and timing. This study represents the first use of a multi-sensor, taut-wired mooring system to determine temporal variability patterns throughout the entire water column on the continental slope near Cape Hatteras over an extended duration.
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