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Tidal dynamics and low-frequency exchanges in the Aransas Pass, Texas
Title
Tidal dynamics and low-frequency exchanges in the Aransas Pass, Texas.
Creator
Smith, Ned P.
Date Issued
1979
PURL
http://purl.flvc.org/FCLA/DT/3174009
Subject Headings
Tides, Continental shelf, Bays, Estuaries, Ocean-atmosphere interaction
Format
Document (PDF)
Near-shore circulation in the lower Florida Keys
Title
Near-shore circulation in the lower Florida Keys.
Creator
Pitts, Patrick A., Harbor Branch Oceanographic Institute
Date Issued
2002
PURL
http://purl.flvc.org/FCLA/DT/3172924
Subject Headings
Tidal currents, Ocean-atmosphere interaction, Ocean circulation --Atlantic Ocean, Spectrum analysis, Harmonic analysis
Format
Document (PDF)
Local energy exchanges in a shallow, coastal lagoon: Winter conditions
Title
Local energy exchanges in a shallow, coastal lagoon: Winter conditions.
Creator
Smith, Ned P., Kierspe, George H.
Date Issued
1981
PURL
http://purl.flvc.org/FCLA/DT/3174484
Subject Headings
Lagoon ecology, Heat budget (Geophysics), Ocean-atmosphere interaction, Temperature, Computer simulation
Format
Document (PDF)
Response of Florida Atlantic shelf waters to Hurricane David
Title
Response of Florida Atlantic shelf waters to Hurricane David.
Creator
Smith, Ned P.
Date Issued
1982
PURL
http://purl.flvc.org/FCLA/DT/3172969
Subject Headings
Atlantic coast, Hurricane David, 1979, Ocean-atmosphere interaction, Storm surges, Atmospheric pressure
Format
Document (PDF)
Meteorological forcing of coastal waters by the inverse barometer effect
Title
Meteorological forcing of coastal waters by the inverse barometer effect.
Creator
Smith, Ned P.
Date Issued
1979
PURL
http://purl.flvc.org/FCLA/DT/3172952
Subject Headings
Ocean-atmosphere interaction, Atmospheric pressure, Time-series analysis, Coasts, Mexico, Gulf of
Format
Document (PDF)
Tidal, low-frequency and long-term mean transport through two channels in the Florida Keys
Title
Tidal, low-frequency and long-term mean transport through two channels in the Florida Keys.
Creator
Smith, Ned P.
Date Issued
2002
PURL
http://purl.flvc.org/FCLA/DT/2848305
Subject Headings
River channels, Florida Keys (Fla.), Hydrodynamics --Mathematical models, Ocean-atmosphere interaction, Hydraulic measurements
Format
Document (PDF)
Subsurface flow generated by a steady wind stress applied at the water surface
Title
Subsurface flow generated by a steady wind stress applied at the water surface.
Creator
Gurfinkiel, Lionel., Florida Atlantic University, Dhanak, Manhar R.
Abstract/Description
A turbulent water current induced by winds, through a friction force at the sea surface and subjected to the Coriolis force in shallow water was studied. A Large Eddy Simulation model developed by Zikanov et al. is used to solve the Navier-Stokes equations. To define the bottom boundary condition, a drag coefficient parameter, based on the ideas of Csanady, is used to evaluate the shear stress at the bottom. To find a suitable bottom boundary condition for this LES simulation, several cases...
Show moreA turbulent water current induced by winds, through a friction force at the sea surface and subjected to the Coriolis force in shallow water was studied. A Large Eddy Simulation model developed by Zikanov et al. is used to solve the Navier-Stokes equations. To define the bottom boundary condition, a drag coefficient parameter, based on the ideas of Csanady, is used to evaluate the shear stress at the bottom. To find a suitable bottom boundary condition for this LES simulation, several cases were considered with change in drag coefficient property. The effect of variation in the depth of the water column was also considered. Variation in surface deflection of the current, variation of the mass flux and distribution of eddy viscosity with depth of the water column are determined. The cases are compared with the case of a deep water column. Numerical results are also compared with field observations.
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Date Issued
2003
PURL
http://purl.flvc.org/fcla/dt/13030
Subject Headings
Ocean-atmosphere interaction--Mathematical models, Turbulence, Wind waves--Mathematical models
Format
Document (PDF)
An investigation of summer upwelling across central Florida's Atlantic coast: The case for wind stress forcing
Title
An investigation of summer upwelling across central Florida's Atlantic coast: The case for wind stress forcing.
Creator
Pitts, Patrick A., Smith, Ned P.
Date Issued
1997
PURL
http://purl.flvc.org/FCLA/DT/3172959
Subject Headings
Upwelling (Oceanography), Ocean-atmosphere interaction, Atlantic Coast (Fla.) --Environmental conditions, Ocean currents --Atlantic Ocean, Time-series analysis
Format
Document (PDF)
Spectral evaluation of motion compensated adv systems for ocean turbulence measurements
Title
Spectral evaluation of motion compensated adv systems for ocean turbulence measurements.
Creator
Egeland, Matthew Nicklas, von Ellenrieder, Karl, VanZwieten, James H., Florida Atlantic University, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description
A motion compensated ADV system was evaluated to determine its ability to make measurements necessary for characterizing the variability of the ambient current in the Gulf Stream. The impact of IMU error relative to predicted turbulence spectra was quantified, as well as and the ability of the motion compensation approach to remove sensor motion from the ADV measurements. The presented data processing techniques are shown to allow the evaluated ADV to be effectively utilized for quantifying...
Show moreA motion compensated ADV system was evaluated to determine its ability to make measurements necessary for characterizing the variability of the ambient current in the Gulf Stream. The impact of IMU error relative to predicted turbulence spectra was quantified, as well as and the ability of the motion compensation approach to remove sensor motion from the ADV measurements. The presented data processing techniques are shown to allow the evaluated ADV to be effectively utilized for quantifying ambient current fluctuations from 0.02 to 1 Hz (50 to 1 seconds) for dissipation rates as low as 3x10-7. This measurement range is limited on the low frequency end by IMU error, primarily by the calculated transformation matrix, and on the high end by Doppler noise. Inshore testing has revealed a 0.37 Hz oscillation inherent in the towfish designed and manufactured as part of this project, which can nearly be removed using the IMU.
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Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00004191, http://purl.flvc.org/fau/fd/FA00004191
Subject Headings
Fluid dynamic measurements, Fluid mechanics -- Mathematical models, Motion control systems, Ocean atmosphere interaction, Ocean circulation, Turbulence, Wave motion, Theory of
Format
Document (PDF)
Influences of Climate variability on Rainfall Extremes of Different Durations
Title
Influences of Climate variability on Rainfall Extremes of Different Durations.
Creator
Metellus, Wilord, Teegavarapu, Ramesh, Florida Atlantic University, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description
The concept of Intensity Duration Frequency (IDF) relationship curve presents crucial design contribution for several decades under the assumption of a stationary climate, the frequency and intensity of extreme rainfall nonetheless seemingly increase worldwide. Based on the research conducted in recent years, the greatest increases are likely to occur in short-duration storms lasting less than a day, potentially leading to an increase in the magnitude and frequency of flash floods. The trend...
Show moreThe concept of Intensity Duration Frequency (IDF) relationship curve presents crucial design contribution for several decades under the assumption of a stationary climate, the frequency and intensity of extreme rainfall nonetheless seemingly increase worldwide. Based on the research conducted in recent years, the greatest increases are likely to occur in short-duration storms lasting less than a day, potentially leading to an increase in the magnitude and frequency of flash floods. The trend analysis of the precipitation influencing the climate variability and extreme rainfall in the state of Florida is conducted in this study. Since these local changes are potentially or directly related to the surrounding oceanic-atmospheric oscillations, the following oscillations are analyzed or highlighted in this study: Atlantic Multi-Decadal Oscillation (AMO), El Niño Southern Oscillation (ENSO), and Pacific Decadal Oscillations (PDO). Collected throughout the state of Florida, the precipitation data from rainfall gages are grouped and analyzed based on type of duration such as short-term duration or minute, in hourly and in daily period. To assess statistical associations based on the ranks of the data, the non-parametric tests Kendall’s tau and Spearman’s rho correlation coefficient are used to determine the orientation of the trend and ultimately utilize the testing results to determine the statistical significance of the analyzed data. The outcome of the latter confirms with confidence whether there is an increasing or decreasing trend in precipitation depth in the State of Florida. The main emphasis is on the influence of rainfall extremes of short-term duration over a period of about 50 years. Results from both Spearman and Mann-Kendall tests show that the greatest percentage of increase occurs during the short rainfall duration period. The result highlights a tendency of increasing trends in three different regions, two of which are more into the central and peninsula region of Florida and one in the continental region. Given its topography and the nature of its water surface such as the everglades and the Lake Okeechobee, Florida experience a wide range of weather patterns resulting in frequent flooding during wet season and drought in the dry season.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004787, http://purl.flvc.org/fau/fd/FA00004787
Subject Headings
Climatic changes., Climate change mitigation., Ocean-atmosphere interaction., Rain and rainfall--Measurement., Rainfall probabilities., Rainfall intensity duration frequencies--Florida.
Format
Document (PDF)