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Title: Oceanic turbulence measurement using an AUV platform and development of graphical interfaces for data acquisition and analysis.
Creator: Leindecker, Eric-Olivier., Florida Atlantic University, Dhanak, Manhar R., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: Application of a small autonomous underwater vehicle (AUV) is described as a platform for measurement of oceanic turbulence in coastal waters during cold atmospheric fronts. The turbulence package, mounted on the AUV, allows horizontal profiling and measurement of small-scale fluctuations of velocity and temperature and other characteristics of the flow in the ocean mixed layer. The turbulence measurements were made in conjunction with current profile measurements, conductivity, temperature,...
Show moreApplication of a small autonomous underwater vehicle (AUV) is described as a platform for measurement of oceanic turbulence in coastal waters during cold atmospheric fronts. The turbulence package, mounted on the AUV, allows horizontal profiling and measurement of small-scale fluctuations of velocity and temperature and other characteristics of the flow in the ocean mixed layer. The turbulence measurements were made in conjunction with current profile measurements, conductivity, temperature, and depth measurements, providing the background conditions. The navigation and tracking data from the ship and the underwater vehicle are also presented. The primary focus of this research was to collect and analyze data from the ocean in order to resolve the turbulent velocity fluctuations and the dissipation rates of turbulent kinetic energy. The aim of this thesis is to explain the approach for measurement and analysis of ocean data. It includes the manufacture of the measurement probes, the preparation of the electronic system, the coding of the acquisition software and use of several algorithms for detecting the presence of turbulence and mixing. Two observational oceanographic experiments are described as a basis for illustrating the techniques and methods in data acquisition and analysis of the oceanographic and turbulent quantities.
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Date Issued: 2001
PURL: http://purl.flvc.org/fcla/dt/12781
Subject Headings: Oceanographic submersibles, Turbulence, Oceanography
Format: Document (PDF)

Title: Ship shadow measurements obtained from a manned submersible.
Creator: Spinard, R. W., Widder, Edith A., Harbor Branch Oceanographic Institute
Date Issued: 1992
PURL: http://purl.flvc.org/FCLA/DT/3180407
Subject Headings: Submersibles, Spectral irradiance, Optical oceanography
Format: Document (PDF)

Title: A walk on the deepside: animals in the deep sea.
Creator: Tyler, Paul A., Rice, A. L., Young, Craig M., Gebruk, A., Harbor Branch Oceanographic Institute
Date Issued: 1996
PURL: http://purl.flvc.org/fau/fd/FA00007264
Subject Headings: Deep-sea animals, Oceanography
Format: Document (PDF)

Title: Computer controlled long-term cyclic fatigue testing of pressure vessels.
Creator: Brenn, C. B., Clark, A. M., Harbor Branch Oceanographic Institute
Date Issued: 1986
PURL: http://purl.flvc.org/fau/fd/FA00007437
Subject Headings: Pressure vessels, Hydrostatic pressure, Oceanography
Format: Document (PDF)

Title: Discovering the depths.
Creator: Boyle, Austin
Date Issued: 2005-10
PURL: http://purl.flvc.org/fcla/dt/11533
Subject Headings: Environmental engineering, Oceanography--Florida
Format: Document (PDF)

Title: Simulation of grain-size abundances on a barred upper shoreface.
Creator: Liu, James T., Zarillo, Gary A., Harbor Branch Oceanographic Institute
Date Issued: 1993
PURL: http://purl.flvc.org/FCLA/DT/3353876
Subject Headings: Banks (Oceanography), Water waves, Sedimentation and deposition
Format: Document (PDF)

Title: Thin layers of bioluminescent copepods found at density discontinuities in the water column.
Creator: Widder, Edith A., Johnsen, Sonke, Bernstein, S. A., Case, J. F., Neilson, D. J., Harbor Branch Oceanographic Institute
Date Issued: 1999
PURL: http://purl.flvc.org/FCLA/DT/2795600
Subject Headings: Biological oceanography, Bioluminescence, Marine animals --Food
Format: Document (PDF)

Title: In memoriam: John Hood Ryther 1922-2006.
Creator: Mann, Roger, Yentsch, Charles S., Lapointe, Brian E.
Date Issued: 2007
PURL: http://purl.flvc.org/FCLA/DT/3174063
Subject Headings: Plankton, Marine plankton, Marine biology, Biological oceanography
Format: Document (PDF)

Title: Phytoplankton response to intrusions of slope water on the West Florida Shelf: Models and observations.
Creator: Walsh, John J., Weisberg, Robert H., Dieterle, Dwight A., He, Ruoying, Darrow, Brian P., Jolliff, Jason K., Lester, Kristen M., Vargo, Gabriel A., Kirkpatrick, Gary J., Fanning, Kent A., Sutton, Tracey T., Jochens, Ann E., Biggs, Douglas C., Nababan, Bisman, Hu, Chuanmin, Muller-Karger, Frank E., Harbor Branch Oceanographic Institute
Date Issued: 2003
PURL: http://purl.flvc.org/FCLA/DT/3172985
Subject Headings: Phytoplankton, Red tide --Florida, Diatoms, Upwelling (Oceanography)
Format: Document (PDF)

Title: Design and testing of an untethered vertically ascending profiler for use in measuring near-surface turbulence.
Creator: Bogin, Jeffrey Isaac., Florida Atlantic University, Dhanak, Manhar R.
Abstract/Description: The Vertically Ascending Micro-scale Profiler, or VAMP, has been designed, constructed, and tested to be used in conjunction with FAU's Turbulence Package in order to collect vertical turbulence profiles close to the free surface. Unique to VAMP is that it has been specifically designed as an untethered ascending profiler. Examination of turbulence data collected using VAMP shows that the measured shear spectrum and the turbulent kinetic energy dissipation closely matches the Nasmyth Spectrum...
Show moreThe Vertically Ascending Micro-scale Profiler, or VAMP, has been designed, constructed, and tested to be used in conjunction with FAU's Turbulence Package in order to collect vertical turbulence profiles close to the free surface. Unique to VAMP is that it has been specifically designed as an untethered ascending profiler. Examination of turbulence data collected using VAMP shows that the measured shear spectrum and the turbulent kinetic energy dissipation closely matches the Nasmyth Spectrum. Data processing techniques made it possible to filter out motion generated by surface wave action, which allowed VAMP to collect data at depths as shallow as the troughs of the surface waves. VAMP can be launched, deployed several times, and recovered all within a thirty minute time frame by a crew of four.
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Date Issued: 2003
PURL: http://purl.flvc.org/fcla/dt/13020
Subject Headings: Turbulence--Measurement, Surface waves (Oceanography)
Format: Document (PDF)

Title: Bioactive terpene production associated with Caribbean gorgonians from the genera Pseudopterogorgia and Eunicea: Discovery of a sustainable production method.
Creator: Newberger, Nealie C., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Chemistry and Biochemistry
Abstract/Description: Research directed toward renewable, non-destructive sources of bioactive marine derived compounds, is becoming more important everyday. Marine soft corals known as sea whips are a prolific source of such biologically active compounds. One particular organism, Eunicea fusca, possesses diterpene arabinose glycosides with potent antiinflammatory activity that rival the industry standard indomethicin. Fuscocide B is known to inhibit phorbol myristate acetate (PMA)-induced ear edema in murine...
Show moreResearch directed toward renewable, non-destructive sources of bioactive marine derived compounds, is becoming more important everyday. Marine soft corals known as sea whips are a prolific source of such biologically active compounds. One particular organism, Eunicea fusca, possesses diterpene arabinose glycosides with potent antiinflammatory activity that rival the industry standard indomethicin. Fuscocide B is known to inhibit phorbol myristate acetate (PMA)-induced ear edema in murine models, is a minor secondary metabolite and it is therefore difficult to acquire in large quantities. Alternatively, fuscol and eunicol, are known to have similar antiinflammatory activity and are major secondary metabolites which are structurally similar to fuscocide B and are also produced by E. fusca. We have found that fuscol and eunicol can be extracted from the holobiont, and Symbiodinium (Symbiodinium sp.) cells isolated from E. fusca. Similarly, diterpene glycosides, known as pseudopterosins, have been isolated from the the holobiont, and purified Symbiodinium of Pseudopterogorgia elisabethae. Pseudopterosins are also known to possess anti-inflammatory and analgesic properties superior to that of existing drugs. Since many chemically unique metabolites demonstrating bioactive properties have been introduced into pre-clinical and clinical trials I-III5 and the supply issue has been duly highlighted, it has become advantageous to determine the source of these compounds in each of the above mentioned species and determine if a renewable, non-destructive source can be maintained. Data has been presented suggesting that the actual source of the pseudopterosins is not the coral, but actually the dinoflagellate symbiont associated with Pseudopterogorgia elisabethae. Therefore, we have examined cryopreservation of the dinoflagellate symbionts, induction of terpene biosynthesis in the dinoflagellate symbionts, as well as various cell culture techniques in order to better understand the ecological role of terpene biosynthesis in the symbionts and the host corals. The data obtained in the following studies reveals a bacterial source for the production of bioactive secondary metabolites from Eunicea fusca and lends support to a possible bacterial producing trend in gorgonians.
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Date Issued: 2006
PURL: http://purl.flvc.org/fcla/dt/12224
Subject Headings: Biology, Oceanography, Chemistry, Biochemistry, Chemistry, Organic
Format: Document (PDF)

Title: THE PROPERTIES OF CALCAREOUS DEPOSITS FORMED ON METAL SURFACE IN SEA WATER UNDER CATHODIC PROTECTION AT DIFFERENT POTENTIALS AND CURRENT DENSITIES.
Creator: Luo, Jiunn-Shyong, Florida Atlantic University, Lee, Rupert U., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description: The influence of impressed current density and potential upon the nature of calcareous deposits formed . on a cathodic steel surface has been investigated. The experiments included potentiostatic, galvanostatic and mixed mode combined galvanostatic and potentiostatic techniques for affecting polarization. Specific attention was focused upon the thickness, morphology and composition of the deposits. A Mg 2+ depletion model has been developed as a possible explanation for the nucleation and...
Show moreThe influence of impressed current density and potential upon the nature of calcareous deposits formed . on a cathodic steel surface has been investigated. The experiments included potentiostatic, galvanostatic and mixed mode combined galvanostatic and potentiostatic techniques for affecting polarization. Specific attention was focused upon the thickness, morphology and composition of the deposits. A Mg 2+ depletion model has been developed as a possible explanation for the nucleation and growth behavior of calcareous deposits formed under combined mode operation.
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Date Issued: 1987
PURL: http://purl.flvc.org/fcla/dt/14376
Subject Headings: Metals--Cathodic protection, Chemical oceanography, Calcium
Format: Document (PDF)

Title: A MACHINE LEARNING APPROACH FOR OCEAN EVENT MODELING AND PREDICTION.
Creator: Muhamed, Ali Ali Abdullateef, Zhuang, Hanqi, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
Abstract/Description: In the last decade, deep learning models have been successfully applied to a variety of applications and solved many tasks. The ultimate goal of this study is to produce deep learning models to improve the skills of forecasting ocean dynamic events in general and those of the Loop Current (LC) system in particular. A specific forecast target is to predict the geographic location of the (LC) extension and duration, LC eddy shedding events for a long lead time with high accuracy. Also, this...
Show moreIn the last decade, deep learning models have been successfully applied to a variety of applications and solved many tasks. The ultimate goal of this study is to produce deep learning models to improve the skills of forecasting ocean dynamic events in general and those of the Loop Current (LC) system in particular. A specific forecast target is to predict the geographic location of the (LC) extension and duration, LC eddy shedding events for a long lead time with high accuracy. Also, this study aims to improve the predictability of velocity fields (or more precisely, velocity volumes) of subsurface currents. In this dissertation, several deep learning based prediction models have been proposed. The core of these models is the Long-Short Term Memory (LSTM) network. This type of recurrent neural network is trained with Sea Surface Height (SSH) and LC velocity datasets. The hyperparameters of these models are tuned according to each model's characteristics and data complexity. Prior to training, SSH and velocity data are decomposed into their temporal and spatial counterparts.A model uses the Robust Principle Component Analysis is first proposed, which produces a six-week lead time in forecasting SSH evolution. Next, the Wavelet+EOF+LSTM (WELL) model is proposed to improve the forecasting capability of a prediction model. This model is tested on the prediction of two LC eddies, namely eddy Cameron and Darwin. It is shown that the WELL model can predict the separation of both eddies 10 and 14 weeks ahead respectively, which is two more weeks than the DAC model. Furthermore, the WELL model overcomes the problem due to the partitioning step involved in the DAC model. For subsurface currents forecasting, a layer partitioning method is proposed to predict the subsurface field of the LC system. A weighted average fusion is used to improve the consistency of the predicted layers of the 3D subsurface velocity field. The main challenge of forecasting of the LC and its eddies is the small number of events that have occurred over time, which is only once or twice a year, which makes the training task difficult. Forecasting the velocity of subsurface currents is equally challenging because of the limited insitu measurements.
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Date Issued: 2021
PURL: http://purl.flvc.org/fau/fd/FA00013727
Subject Headings: Machine learning, Loop Current, Oceanography--Forecasting
Format: Document (PDF)

Title: Manned submersibles and sophisticated instrumentation: tools for oceanographic research.
Creator: Youngbluth, Marsh J.
Date Issued: 1984
PURL: http://purl.flvc.org/fau/fd/FA00007288
Subject Headings: Oceanography--Research, Submersibles, Oceanography--Research--Instruments, Johnson-Sea-Link II (Submarine)
Format: Document (PDF)

Title: Vertical structure, biomass and topographic association of deep-pelagic fishes in relation to a mid-ocean ridge system.
Creator: Sutton, Tracey T., Porteiro, F.M., Heino, M., Byrkjedal, I., Langhelle, G., Anderson, C.I.H., Horne, J., Falkenhaug, T., Bergstad, O.A., Harbor Branch Oceanographic Institute
Date Issued: 2007
PURL: http://purl.flvc.org/FCLA/DT/2761977
Subject Headings: Pelagic fishes, Topography, Deep-sea fishes, Oceanography
Format: Document (PDF)

Title: In situ observations on three species of largefinned deep-sea squids.
Creator: Vecchione, M., Roper, C. F. E., Widder, Edith A., Frank, Tamara M., Harbor Branch Oceanographic Institute
Date Issued: 2002
PURL: http://purl.flvc.org/FCLA/DT/3171653
Subject Headings: Squids, Giant squids, Oceanography --Observations, Oceanographic submersibles, Marine biology
Format: Document (PDF)

Title: Biological explorations in the mid-ocean realm: food webs, particle flux, and technological advancements.
Creator: Youngbluth, Marsh J., Bailey, T. G., Jacoby, C. A.
Date Issued: 1990
PURL: http://purl.flvc.org/fau/fd/FA00007204
Subject Headings: Ocean, Marine ecology, Food webs, Submersibles, Oceanography--Research
Format: Document (PDF)

Title: NOAA CIOERT cruise report: Survey of the pulley ridge mesophotic reef ecosystem.
Creator: Reed, John K., Farrington, Stephanie, Pomponi, Shirley A., Hanisak, M. Dennis, Voss, Joshua
Date Issued: 2012-02-15
PURL: http://purl.flvc.org/fcla/dt/3360202
Subject Headings: Ocean exploration, Oceanography--Research, Corals Ecology, Deep sea corals
Format: Document (PDF)

Title: Tidal residual currents and sediment transport through multiple tidal inlets.
Creator: Liu, James T., Aubrey, David G., Harbor Branch Oceanographic Institute
Date Issued: 1993
PURL: http://purl.flvc.org/FCLA/DT/3172972
Subject Headings: Tidal currents, Sediment transport, Tides, Inlets, Estuarine oceanography
Format: Document (PDF)

Title: Longitudinal transport in a coastal lagoon.
Creator: Smith, Ned P.
Date Issued: 1990
PURL: http://purl.flvc.org/FCLA/DT/3173015
Subject Headings: Lagoons, Estuarine oceanography, Ocean circulation, Atmospheric circulation, Computer simulation
Format: Document (PDF)

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