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  • Engineering  (21)
  • Chemical Engineering
  • Cell & Developmental Biology
  • University of Florida, Coastal and Oceanographic Engineering Department  (21)
  • 1
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    Ponce de Leon channel shoaling and erosion studies Punta Gorda, Florida (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/428 | 3 | 2020-08-24 02:56:50 | 428 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-06-29
    Description: The shoaling and bank erosion at Ponce de Leon channel, Punta Gorda, Florida, havecaused concern of harming the mangrove community along the channel. Three factorswere identified that could contribute to the bank erosion of Ponce channel. Theyare tidal induced current, wind waves penetrating from the Charlotte Harbor, andwakes caused by boat traffic. According to the field experiments and numericalmodeling studies, it was determined that the combined wind wave and tidal currentforce is the major cause to the bank erosion. Wind wave appears to play a moreimportant role because of its dynamic nature. For the present cross-sectionalchannel condition the tidal current alone is only a moderate erosional force.It was also found that reopening the barge canal would cut the tidal currentstrength in the Ponce channel by a half. This current reduction would reduce butnot eliminate bank erosion in the lower reach as the wind-wave induced force willremain to be an important erosional factor.A number of remedial alternatives were given in the report. The most direct methodis to provide bank protection. The extent of the protection depends upon theextent of wind wave penetration which could be as deep as 150 m into the channelunder the present channel entrance condition. (This document has 49 pages. )
    Keywords: Oceanography ; Engineering ; tidal current ; erosion ; channels ; Ponce de Leon channel ; Florida ; mangroves ; Punta Gorda
    Repository Name: AquaDocs
    Type: monograph
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  • 2
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    Video monitoring techniques in the coastal environment (2021)
    University of Florida, Coastal and Oceanographic Engineering Department
    In:  http://aquaticcommons.org/id/eprint/478 | 3 | 2020-08-24 02:59:47 | 478 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-06-30
    Description: Abstract of Thesis Presented to the Graduate Schoolof the University of Florida in Partial Fulfillment of theRequirements for the Degree of Master of EngineeringVIDEO MONITORING TECHNIQUES IN THECOASTAL ENVIRONMENTByThe field of coastal engineering has primarily utilized traditional measurementtechniques such as boat surveys and beach profiles. Aerial photography has played amajor role in the mapping of coastlines and ocean currents. More recent technology hasprovided the ability to make field measurements with precision electronicinstrumentation, but the problem of making large-scale measurements within economicbounds remains. The video revolution and, in particular, desktop video has greatlyenhanced the ability of scientists and engineers to visualize events over greater periods oftime and larger scales than ever before.The uses of video, benefits, shortcomings, and future expectations are presentedas applicable to the field of coastal engineering. This feasibility study incorporates someapplications which have previously been explored, as well as others which result fromtwo unique video data sets that were collected between 1991 and the present.
    Description: Masters
    Description: UFL/COEL/93/006
    Keywords: Oceanography ; Engineering ; Earth Sciences ; coastal changes ; video monitoring
    Repository Name: AquaDocs
    Type: thesis
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    Format: 105
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  • 3
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    A method for predicting local structure-induced sediment scour based on near bottom flow measurements (2021)
    University of Florida, Coastal and Oceanographic Engineering Department
    In:  http://aquaticcommons.org/id/eprint/475 | 3 | 2020-08-24 03:09:11 | 475 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-06-29
    Description: A method of predicting equilibrium scour depths around multiple pile structuresbased on pre-scoured bottom shear stress was developed in this study. It washypothesized that a relationship exists between the pre-scoured bottom shear stress andthe equilibrium scour depth. A series of hydrodynamic tests were conducted in whichnear-bottom flow measurements were made in the vicinity of a variety of multiple pilestructures. The distribution of bottom shear stress was estimated from these flowmeasurements. Scour tests were then made in the same flume using the same structures.A simple relationship between the equilibrium scour depth and the pre-scoured bottomshear stress was formulated and the data from the two sets of experiments were used tocalibrate and test the formulation. The formulation gives reasonable predictions for therange of conditions tested. The approach appears promising as an alternative way of estimating equilibrium local scour depths for complex multiple pile structures. Inaddition, a number of interesting and useful findings were made regarding the rate atwhich a local scour hole forms near complex structures. (Document contains 146 pages.)
    Description: Masters
    Description: UFL/COEL/93/003
    Keywords: Engineering ; Scouring ; models
    Repository Name: AquaDocs
    Type: thesis
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  • 4
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    Flow and transport characteristics at a canal network Burnt Store Isles, Punta Gorda, Florida (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/535 | 3 | 2020-08-24 03:04:05 | 535 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-06-30
    Description: This report presents results of field measurements and numerical modeling of thehydrodynamic and sedimentary behaviors at a boat lock located in Section 15, BurntStore Isles of Punta Gorda, Florida. The purpose of the study is to establish thequantities of tidal flows through the lock in comparison with the flows bypassing thelock through other outlets between Section 15 and the Alligator Creek. The amountof sediment and pollutant transporting through the lock are also estimated in thestudy. (Document has 68 pages.)
    Keywords: Engineering ; Environment ; Punta Gorda ; Florida ; canals ; Alligator Creek ; Flow exchange ; Boat lock ; Pollutant transport
    Repository Name: AquaDocs
    Type: monograph
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  • 5
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    Barrier island erosion and overwash study - volume 1 (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/536 | 3 | 2020-08-24 03:04:36 | 536 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-06-30
    Description: This is the first of a pair of reports documenting the effects of storms on barrier island systems.The present report (Volume 1) investigates storm effects on natural island conditions whereasVolume 2 addresses the effects of seawalls. With the aim of simulating the effects of overwashon barrier islands and characterizing their response, a series of nine experiments was conductedat the Coastal Engineering Laboratory of the University of Florida. The barrier island wassimulated by a 400 feet wide (prototype units) horizontal crest and an initially planar (1:19)beach. The effects of various storm surge levels and accompanying overtopping were investigated.Experiments were conducted with both regular and irregular storm waves. Regularwaves without overtopping caused the formation of a substantial berm in the swash zone and aprominent longshore bar offshore. Increasing degrees of overtopping resulted in substantial lossof sand from the barrier island system. The longshore bar was considerably more subtle for thehighest water level tested (11.5 ft. above mean sea level). Simulation of a storm-surge hydrographwith rising and falling water levels indicated that the presence of the bar tends to occuronly during a relatively steady or slowly changing water level. The experiments with irregularwaves were conducted with reasonably similar wave heights and carrier periods as those withregular waves. The major difference was in the characteristics of the longshore bar response. Incomparison with cases with regular waves, the bar was less distinct without overtopping, subtlewith minimal overtopping and absent in cases with substantial overtopping. These experimentsseem to indicate that offshore bars are simply break-point bars which require a fairly steadybreak-point and undertow (return of mass transport) for optimal formation. (Document has 84 pages.)
    Description: Department of Civil and Coastal Engineering, University of Florida
    Description: Prepared for: Beaches and Shores Resource Center Innovation Park, Morgan Building Box 9 2035 East Paul Dirac Drive Tallahassee, Fl 32304
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Barrier Island ; Storm Effects ; Beach Erosion ; Overwash ; Washover
    Repository Name: AquaDocs
    Type: monograph
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  • 6
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    Sebastian Inlet physical model studies. Final report: movable bed model (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/533 | 3 | 2021-02-27 20:20:10 | 533 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-06-30
    Description: This report presents results of the experiments of the existing inlet and eightstructural alternatives to the Sebastian Inlet from a movable bed model. It is intendedto find solutions for improvement of boating safety and protection of beaches adjacentto the inlet. Based upon the experimental results from here and the fixed bed modelstudy, which is summarized in Part I report, an optimum structural modification planwas then recommended providing a general frame of improvement scheme.The research in this report was authorized by the Sebastian Inlet District Commissionof September 15, 1989. The University of Florida was notified to proceedon November 14, 1989. The study and report were prepared by the Department ofCoastal and Oceanographic Engineering, University of Florida. Coastal TechnologyCorporation was the technical monitor representing the Sebastian Inlet District. (Document has 109 pages.)
    Keywords: Oceanography ; Engineering ; Planning ; Erosion ; Sediment transport ; Shore erosion ; Structural alternative ; Sebastian Inlet ; Florida
    Repository Name: AquaDocs
    Type: monograph
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  • 7
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    Historical shoreline response to inlet modifications and sea level rise (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/534 | 3 | 2020-08-24 03:03:47 | 534 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-06-30
    Description: This thesis examines the historical shoreline response to inlet modifications and sealevel rise. Inlet modifications are considered to be the geographic stabilization and training(through the use of structures) of natural inlets and the creation and further modification ofartificial inlets. Shoreline response to natural and artificial processes must be understood inorder to predict the performance of the coastline. The tendency for creating and modifyinginlets increases as industry and population growth demands. Sea level rise is a natural processwhich cannot be controlled at this time. Current theoretical approaches to predictingshoreline response indicate that sea level rise and inlet modifications can cause substantialshoreline impact. Florida, with roughly a century of shoreline position and relative sea leveldata, provides a basis for examining past trends and comparing them with theory.The shoreline of Florida was found to be accreting with the greatest accretion alongthe east coast. Shoreline responses within the boundaries of the erosional influence of inletsdue to their creation and/or modification were examined for 19 inlets around the coast ofFlorida. The differences in the shoreline response before and after the initial modification ofeach inlet show the erosional strain that inlets apply on the nearby shoreline. The effect onshoreline response due to the human intervention (unnatural processes) of modifying inletswas isolated and examined. The shoreline response due to this "human intervention" was erosional, thereby showing the negative impact that modified inlets have on shorelines. Thisinduced erosion is responsible for the loss of roughly 21.6 million cubic yards of sand from theshoreline that is within the erosional influence of Florida's east coast inlets. Combining theshoreline changes due only to natural processes with sea level rise data allows for comparisonwith the commonly accepted Bruun Rule for shoreline response as a result of a changingsea level. This comparison and the effects of including a lag time between a rise in sea leveland a change in shoreline along the east coast of Florida during the last century show noagreement with the Bruun Rule and no correlation with a specific lag time. (Document has 153 pages.)
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Coasts ; Sea level changes ; Coastal inlets ; Florida
    Repository Name: AquaDocs
    Type: monograph
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  • 8
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    Barrier island erosion and overwash study -- effect of seawalls. Volume 2 (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/541 | 3 | 2020-08-24 03:05:18 | 541 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-06-30
    Description: This is the second of a pair of reports documenting the effects of storms on beach systemsincluding the presence of seawalls. With the aim of simulating the effects of overwash onbarrier islands with seawalls and characterizing their response, a series of eight experimentswas conducted at the Coastal Engineering Laboratory of the University of Florida. The barrierisland was simulated by a 400 feet wide horizontal crest and an initially uniform mildly-sloped(1:19) beach. The effects of positioning the seawall at two different locations as well as the effectsof various storm surge levels and accompanying overtopping were investigated. Experimentswere conducted with both regular and irregular storm waves. With the seawall located at theslope break between the crest and the sloping beach of the barrier island, and the crest of theseawall just submerged in sand, the effects on the sediment transport process were found to beminimal. For the same position of the seawall but with the crest of the seawall raised above thesurrounding ground level, overtopping caused washover of sand indicating substantial transportin suspension. Increased levels of overtopping tended to accentuate bed profile changes butsupress bar formation (as did irregular waves). Positioning the seawall at the Mean Sea Levelshoreline caused significant scour both immediately landward as well as immediately seawardof the seawall. A prominent scour trough developed further seaward. The longshore bar washighly three-dimensional. It appears that seawalls need to be located adequately landward of theshoreline to discharge their function effectively without adverse effect to the beach. In addition,concerns for safety warrant the presence of an adequate buffer-zone between the seawall andthe upland property. (61 pp.)
    Description: Prepared for: Beaches and Shores Resource Center Innovation Park, Morgan Building Box 9 2035 East Paul Dirac Drive Tallahassee, Fl 32304
    Keywords: Oceanography ; Engineering ; Earth Sciences ; Barrier island ; seawalls ; storm effects ; beach erosion ; overwash
    Repository Name: AquaDocs
    Type: monograph
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  • 9
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    Flow and transport characteristics at a canal network: Burnt Store Isles, Punta Gorda, Florida (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/542 | 3 | 2020-08-24 03:05:43 | 542 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-06-30
    Description: This report presents results of field measurements and numerical modeling of thehydrodynamic and sedimentary behaviors at a boat lock located in Section 15, BurntStore Isles of Punta Gorda, Florida. The purpose of the study is to establish thequantities of tidal flows through the lock in comparison with the flows bypassing thelock through other outlets between Section 15 and the Alligator Creek. The amountof sediment and pollutant transporting through the lock are also estimated in thestudy. (68 pp.)
    Description: Prepared for City of Punta Gorda, Florida
    Keywords: Engineering ; Boat lock ; flow exchange ; pollutant transport ; Punta Gorda ; Florida
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    Type: monograph
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  • 10
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    A methodology for measuring the wind drag coeeficient on coastal dune vegetation: a study on seaoats (Uniloa paniculata) (2021)
    University of Florida, Coastal and Oceanographic Engineering Department | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/469 | 3 | 2020-08-24 03:07:24 | 469 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-06-29
    Description: Current plant canopy wind flow models require three aerodynamic parametersto predict the effects of wind on sand transport--the plant drag coefficient, Cd, the leafarea density profile, LAD, and the turbulent eddy transfer coefficient, 6,. The LADand Cd characterize the plant canopy and its effects on air flow and, prior to thisstudy, data on these parameters for dune vegetation did not exist. The purpose of thisstudy was to design and test a methodology for measuring the wind drag coefficient ofcoastal dune plants. The objectives were 1) to measure and record the parametersneeded to calculate Cd, namely, the force, relative velocity and air temperature; 2) tomeasure the leaf area density of sea-oats; 3) to validate the method by measuring thequantities needed to compute the drag coefficient for a right circular data exists; and 4) to explore the Reynolds number dependence of the canopy dragcoefficient. (This document has 76 pages.)
    Description: Masters
    Description: UFL/COEL/92/017
    Keywords: Engineering ; Environment ; sea oats ; Uniola paniculata ; aerodynamic drag ; winds ; coastal vegetation
    Repository Name: AquaDocs
    Type: thesis
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    Format: 76
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