Christensen, Willine Elizabeth

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Keller, William Joseph

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Malay, Jonathan Thomas.

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Fitzgerald, James Richard.

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Willems, Robert Cecil.

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Bingham, Glann Stevenson.

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Haley, Mark Christopher.

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Maxwell, Byron Richard.

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Ihle, David Marcus

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Clark, Arthur Doron

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Callahan, Jeffrey Edwin.

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Rautmann, Jürgen.

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Stricker, Robert John

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Sarap, Nick A.

Nonlinear effects on the dispersion relation of waves in shallow water are examined with measurements collected on a mild sloping sandy beach during the recent Sandy Duck experiment. Four arrays of bottom pressure sensors were deployed in depths ranging from 3 - 6 m during August-November, 1997. For each of these arrays, a root-mean-square average wavenumber was estimated as a function of frequency from the cross-spectra of one-hour-long pressure records. The observed wavenumbers are compared to...

Zalkan, Robert Libman

No description available.

Huston, Robert Delmar

A primary goal of this thesis has been to demonstrate that stable, useful measurements of the orientation of the acoustic signal vector as a function of range and time can be obtained from ocean backscatter, and that this orientation, or acoustic phase, can be related to the local sound speed distribution. Such a measurement is quite distinct from the related problem of detecting the rate of phase change, which forms the basis of Doppler technology. Doppler measurements can be made using e...

Cordasco, Michael F.

Approved for public release; distribution unlimited / This thesis examines United States interests in the Western Indian Ocean and recommends a policy toward the area. It analyzes the economic and regional importance of the main states in the area: Madagascar, Mozambique, Mauritius, The Comoros, and The Seychelles. Particular attention is given to strategic, economic and political considerations. United States policy objectives and options in the area are broadly explored and recommendati...

Alcorn, Marion Everet

Approved for public release; distribution unlimited / The energetics of two numerical models of the ocean circulation are studied by use of available potential energy. Available potential energy, calculated by an approximation equation using a temperature perturbation field, compares favorably with that obtained using the exact expression using a height perturbation field. A general circulation model of the ocean is employed to study large-scale energy transformations, and a mid-ocean dyn...

Alexander, Charles Homer

Approved for public release; distribution unlimited. / Sound of constant amplitude and frequency was transmitted simultaneously in three orthogonal beams over a distance of 1.5 meters in the upper ocean. Time records of the resulting phase and amplitude fluctuations of the sound beams were studied by means of auto and cross spectral analysis and correlation. The time lag between corresponding peaks of the phase fluctuation autocorrelation functions of vertical and horizontal beams indicat...

White, Jonathan W.

Approved for public release; distribution is unlimited / Improvements to the specification of ocean optical characteristics in mixed layer dynamics are explored. The effects of reflection (albedo), refraction, and attenuation of solar radiation on mixed layer dynamics are examined. Parameterization schemes are developed to characterize the attenuation of individual spectral components of total solar radiation, and the refraction of'direct solar radiation. The effect of these parameterizations...

Allen, Michael S.

The Ocean of Inquiry is a vernacular compendium of Advaita Vedānta, one of the most influential traditions of South Asian religion and philosophy, especially in modern times. Its author, Niścaldās (ca. 1791 – 1863), was a classically trained pandit and a sādhu of the Dādū Panth. His work was widely read in the nineteenth and early twentieth centuries, both in its Hindi original and in regional translations: Vivekananda once referred to it as the most influential book in India. Surprisingly, howe...

Valett, Jacqueline Grace

Iron plays an important role in the regulation of biological productivity and the carbon cycle of the Southern Ocean. Recently, synchrotron X-ray spectromicroscopy revealed that molar iron to silicon (Fe:Si) ratios in living diatom samples collected from surface waters and ice in the coastal Antarctic are significantly higher than reported dissolved Fe:Si ratios of Circumpolar Deep Water. Upwelling of Circumpolar Deep Water is a dominant source of iron and silicon to coastal Southern Ocean surfa...

Le Roux, Daniel Y.

The purpose of this thesis is to develop a new barotropic ocean model to study ocean dynamics. The model combines for the first time the flexible finite-element method and an accurate semi-Lagrangian advection scheme on unstructured triangular meshes. / In the first part of the work, the semi-Lagrangian method is used for advection experiments on an irregular grid. A cosine hill is advected using a specified flow field corresponding to solid body rotation. A major difficulty is to find an interp...

Reynaud, Thierry H.

New high resolution density fields for the northwestern Atlantic Ocean are calculated from objectively analyzed temperature and salinity fields obtained from archived data. The original data set is the Marine Environment Data Service (MEDS) archived data and is supplemented by a subset of the National Oceanographic Data Centre (NODC) data from J. Reid and by the 1980s additional data of Fukumori and Wunsch (1991). The objective analysis scheme is a modification of that used by Levitus (1982) and...

Cain, Amy Nicole

Aluminum dynamics in the ocean are unique given its rapid removal from the surface through adsorption onto sinking particles and its high abundance in the earth's crust. We optimized a flow injection analysis method to allow detection of the extremely low concentrations of dissolved aluminum found in the study region. Samples from the northeast Pacific have the lowest concentrations of dissolved Al found anywhere in the world’s ocean. We present dissolved aluminum data from a transect along...

Hanslik, Daniela

The central Arctic Ocean is one of the least explored deep sea regions and long biostratigraphic sediment records are sparse. The main focus of this thesis is the Arctic Ocean foraminiferal record and its application to reconstruct paleoceanographic variations and summer sea ice cover changes between late Quaternary interglacial periods. One of the studied cores was retrieved from the central Lomonosov Ridge Intra Basin. This core contains a relatively high-resolution biostratigraphic record spa...

Aubert, Olivier

The Maldive Ridge is a volcanic lineament overlain by locally 3.3 km of mostly shallow-water carbonate sediments. The Maldive basement appears on seismic profiles as a volcanic plateau generated during two distinct eruptive phases separated by an episode of tectonic deformation. This deformation created a series of en-echelon pull-apart structures along the ridge acoustic basement and can be related to intraplate compression following the initial stages of the India-Asia collision. The deformati...

Wang, Qiang

No description available.

Veluthedathekuzhiyil, Praveen

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Hsu, Wei-Ching

Both physical circulation and biogeochemical characteristics are unique in the Southern Ocean (SO) region, and are fundamentally different from those of the northern hemisphere. Moreover, according to previous research, the oceanic response to the trend of the Southern Annual Mode (SAM) has profound impacts on the future oceanic uptake of carbon dioxide in the SO. In other words, the climate and circulation of the SO are strongly coupled to the overlying atmospheric variability. However, while w...

Chase, Anna Christina

This arts-informed, phenomenological, and heuristic inquiry focuses on what it means to immerse deeply into experiences within the natural world. Through attention and reflection on emotional and somatic aspects of my own ocean SCUBA diving experiences, and those of beginner and practiced divers, a method and the significance of learning through personal experiences and others’ shared stories is illuminated. Readers are invited to imagine or revisit what it is like to be enveloped by ocean lif...

Barringhaus, Rebecca

In 2004, August Wilson completed Gem of the Ocean, the first play in his Pittsburgh Cycle. Seven years later, the University of Central Florida's production of Gem of the Ocean went against what most consider traditional staging. With a Russian born director and a mostly white production team, playing to a predominately white audience, what are the challenges of accurately transforming the text to the stage, while still providing a truthful telling of a story? The following is a case study based...

Trimble, Jenifer

The purpose of this action research study was to document 8th grade students' experiences at a residential marine learning facility as they discovered the interconnections between life on Earth and its dependency on ocean health. My goal was for students to take their new knowledge and share it with others in a quest to become educated and caring stewards of the Earth's ocean. Students in this study participated in open peer and instructor discussions, performed full and guided inquiry activiti...

Rizea, Steven Emanoel

A proprietary Ocean Thermal Energy Conversion (OTEC) modeling tool, the Makai OTEC Thermodynamic and Economic Model (MOTEM), is leveraged to evaluate the accuracy of finite-time thermodynamic OTEC optimization methods. MOTEM is a full OTEC system simulator capable of evaluating the effects of variation in heat exchanger operating temperatures and seawater flow rates. The evaluation is based on a comparison of the net power output of an OTEC plant with a fixed configuration. Select optimization m...

Crofton, Sonya

Radiative Transfer Models (RTM) have many applications in the satellite microwave remote sensing field, such as the retrieval of oceanic and atmospheric environmental parameters, including surface wind vectors and sea surface temperatures, integrated water vapor, cloud liquid, and precipitation. A key component of the ocean RTM is the emissivity model used to determine the brightness temperature (Tb) at the ocean's surface. A new wideband ocean emissivity RTM developed by the Central Florida Rem...

Wilson, Gary Warren.

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Sanchez, Jaime Cortes

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Barney, William Clifford

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Corgnati, Leino Bartholomew.

No description available.

Bollow, George Edward.

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Peltzer, Todd Jay

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Bardin, Ann Marie

<p> Ocean general circulation models of the IPCC class have biases even when simulating present-day conditions, which may bring into question their predictions of future conditions. This dissertation is about tools for, and results from assessing biases in the Community Earth System Model (CESM) ocean component, by itself and when combined with the Biological Ecosystem Cycling (BEC) model. Newly developed tools and their applications are listed. 1. An offline matrix tracer transport model for th...

Covington, James Harvey

The problems addressed by this research were to establish an efficient set of data structures and functions to implement a realistic open ocean environment, to create a conceptual representation of the ocean surface that realistically animates waves in real time and coordinates the dynamic motions of simulated marine vehicles sailing on the surface, and to establish an object-oriented paradigm for the incorporation of graphical user interface (GUI) components into the present NPSNET structure. T...

Dykes, James D.

No description available.

Emblidge, John Mark.

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Robertson, Candace Joanne

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Jones, Trevor N.

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Steadley, Robert S.

No description available.

Li, Yu-ming.

The pressure amplitude distribution along the interface between a wedge-shaped fluid layer overlying fast and slow fluid bottoms were investigated using compute models based on the method of images. The pressure amplitude along the bottom rapidly falls off for distances closer to the apex than that at which adiabatic-mode theory predicts cut-off for the lowest mode. This distance is termed the dump distance for an acoustically fast-bottom condition. In the case of a slow bottom, because the spee...

Graham, Robert M.

The location of fronts has a direct influence on both the physical and biological processes in the Southern Ocean. However, until recently fronts have been poorly resolved by available data and climate models. In this thesis we utilise a combination of high resolution satellite data, model output and ARGO data to improve our basic understanding of fronts. A method is derived whereby fronts are identified as local maxima in sea surface height gradients. In this way fronts are defined locally as j...