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  • Polymers  (97)
  • Engineering  (81)
  • Management  (44)
  • Oceanography  (40)
  • ASTROPHYSICS
  • Berlin, Heidelberg : Springer  (124)
  • Gainesville, FL  (102)
  • 11
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    Florida's West Coast inlets: shoreline effects and recommended action (2021)
    Department of Coastal and Oceanographic Engineering, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1695 | 3 | 2011-09-29 20:11:10 | 1695 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-07-09
    Description: This report responds to the 1986 Beaches Bill which, in recognition of thepotential deleterious impact on Florida's beaches of inlets modified for navigation,mandated a study of those inlets with identification of recommended action to reducethe impacts. This report addresses west Coast inlets; East Coast inlets are thesubject of a companion report.There are 37 inlets along that portion of Florida's West Coast commencing fromPensacola Bay Entrance to Caxambas Pass at the south end of Marco Island. Compared tothose on the East Coast, most West Coast inlets have not had the deleterious effectson the adjacent beaches, yet all modified inlets without proper management have thepotential of impacting unfavorably on the adjacent shorelines. Moreover, at presentthere is interest in opening three West Coast entrances which either have been openin the past (Midnight Pass) or which have opened occasionally (Navarre Pass andEntrance to Phillips Lake).A review of inlets in their natural condition demonstrates the presence of ashallow broad outer bar across which the longshore transport Occurs. These shallowand shifting bar features were unsuitable for navigation which in many cases has ledto the deepening of the channels and fixing with one or two jetty structures. Inlets in this modified state along with inappropriate maintenance practices have thepotential of placing great ero$ional stress along the adjacent beaches. Moreover.channel dredging can reduce wave sheltering of the shoreline by ebb tidal shoals andalter the equilibrium of the affected shoreline segments. The ultimate in poor sandmanagement practice is the placement of good quality beach sand in water depths toogreat for the sand to reenter the longshore system under natural forces; depths of 12ft. or less are considered appropriate for Florida in order to maintain the sand inthe system.With the interference of the nearshore sediment transport processes by inletsmodified for navigation, if the adjacent beaches are to be stabilized there must bean active monitoring program with commitment to placement of dredged material ofbeach quality on shoreline segments of documented need. Several East Coast inletshave such transfer facilities; however. the quantities of sand transferred should beincreased. Although an evolution and improvement in the technical capability tomanage sand resources in the vicinity of inlets is expected, an adequate capabilityexists today and a concerted program should be made to commence a scheduledimplementation of this capability at those entrances causing greatest erosionalstress on the adjacent shorelines.A brief summary review for each of the 37 West Coast inlets is presentedincluding: a scaled aerial photograph, brief historical information, several itemsrelated to sediment losses at each inlet and special characteristics relevant toState responsibilities. For each inlet, where appropriate, the above infor~tion isutilized to develop a recommenced action. (PDF has 101 pages.)
    Description: Division of Beaches and Shores, Florida Department of Natural Resources
    Keywords: Oceanography ; Engineering ; Bypassing ; Entrances ; Inlets ; Florida
    Repository Name: AquaDocs
    Type: monograph
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  • 12
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    Part I. Hydraulics of tidal inlets: simple analytic models for the engineer (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1476 | 3 | 2011-09-29 20:31:04 | 1476 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
    Details
    Publication Date: 2021-07-08
    Description: Inlets are common coastal features around the world. Essentially aninlet connects a lagoon, a bay or an estuary to the ocean (or sea), and theflow through the inlet channel is primarily induced by the tidal rise andfall of water level in the ocean. When speaking of the hydraulics of an inlet,one is interested mainly in determining the flow through the inlet andthe tidal variation in the bay, given the following:(1) Inlet geometry(2) Bay geometry(3) Bottom sediment characteristics in the inlet(4) Fresh water inflow into the bay (and out throughthe inlet)(5) Ocean tide characteristicsA combination of all these factors can produce a rather complex situation. (PDF contains 34 pages.)
    Keywords: Oceanography ; Engineering ; Tidal inlets
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  • 13
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    Determination of direction of littoral transport along the north shore of Santa Rosa Island, Florida (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1474 | 3 | 2011-09-29 20:31:13 | 1474 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-07-08
    Description: The purpose of this study was to determinethe actual direction of littoral transport along the north shore of SantaRosa Island in the vicinity of Pensacola Beach, Florida. To accomplish thisobjective the sand tracer method was used for the study. Visual observationsand instrument recordings of the environment factors were also made duringthe tracing operations. The investigation covered a time span from September14, 1976 to March 12, 1977.(PDF contains 68 pages.)
    Description: Sponsor: Department-of the Army Mobile District, Corps of Engineers Mobile, Alabama
    Keywords: Oceanography ; Engineering ; Santa Rosa Island ; Florida ; Longshore sediment transport
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  • 14
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    Sediment budget: principals and applications (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1472 | 3 | 2011-09-29 20:31:18 | 1472 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-07-08
    Description: The framework of sediment budget concepts provides a formalized procedureto account for the various components of sediment flux and the changes ofvolume that occur within a given region. Sediment budget methodology can beuseful in a number of coastal engineering and research applications,including: inferring the amount of onshore sediment transport for a nearshoresystem that contains an "excess of sediment", determining sediment deficits todowndrift beaches as a result of engineering works at navigational entrances,evaluating the performance of a beach nourishment project, inferring thedistribution of longshore sediment transport across the surf zone, etc.This chapter reviews briefly the governing equations for sediment budgetcalculations, considers various measurement and other bases for determiningthe sediment flux components necessary to apply the sediment budget conceptand finally for illustration purposes, applies the sediment budget concept toseveral examples. (PDF contains 52 pages.)
    Description: PUBLISHED IN DYNAMICS OF SAND BEACHES, INTERNATIONAL CONFERENCE ON COASTAL ENGINEERING (ICCE) 20th TAIPEL, R.O.C. NOV., 1986.
    Keywords: Oceanography ; Engineering ; Sediment transport ; modeling
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  • 15
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    Some considerations on coastal processes relevant to sea level rise (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1477 | 3 | 2011-09-29 20:30:26 | 1477 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-07-08
    Description: The effects of potential sea level rise on the shoreline and shore environmenthave been briefly examined by considering the interactions between sea level rise andrelevant coastal processes. These interactions have been reviewed beginning with adiscussion of the need to reanalyze previous estimates of eustatic sea level rise andcompaction effects in water level measurement. This is followed by considerations onsea level effects on coastal and estuarine tidal ranges, storm surge and water levelresponse, and interaction with natural and constructed shoreline features. Thedesirability to reevaluate the well known Bruun Rule for estimating shoreline recessionhas been noted. The mechanics of ground and surface water intrusion with reference tosea level rise are then reviewed. This is followed by sedimentary processes in theestuaries including wetland response. Finally comments are included on some probableeffects of sea level rise on coastal ecosystems.These interactions are complex and lead to shoreline evolution (under a sea levelrise) which is highly site-specific. Models which determine shoreline change on thebasis of inundation of terrestrial topography without considering relevant coastalprocesses are likely to lead to erroneous shoreline scenarios, particularly where theshoreline is composed of erodible sedimentary material.With some exceptions, present day knowledge of shoreline response to hydrodynamicforcing is inadequate for long-term quantitative predictions. A series of interrelatedbasic and applied research issues must be addressed in the coming decades todetermine shoreline response to sea level change with an acceptable degree ofconfidence. (PDF contains 189 pages.)
    Description: Sponsor Oak Ridge National Laboratory P.O. Box X Oak Ridge, TN 37831
    Keywords: Oceanography ; Coastal ecosystems ; Coastal processes ; Sea level rise ; Estuarine sedimentation ; Coasts
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  • 16
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    Coastal engineering investigation at Jupiter Inlet, Florida (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1471 | 3 | 2011-09-29 20:31:48 | 1471 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-07-08
    Description: A fixed-bed hydraulic model of Jupiter Inlet, Florida, wasconstructed for the purpose of testing measures designed to remedyproblems of sediment erosion and deposition in the inlet area. Bothtide-induced flows as well as waves were simulated in the model whichwas built on an undistorted scale of 1:49. Model verification was basedon prototype measurements of waves, tides and currents. Results havebeen interpreted in terms of the influence of various proposed remedialschemes on flow velocity magnitude, distribution and wave height atvarious locations within the study area. A stability parameter has beenutilized for evaluating the degree of sediment erosion or deposition ata given location.Various structural solutions were examined in the model. It isproposed that, in the initial phase of solution implementation, sedimentremoval/nourishment methods be used primarily to mitigate the existingproblems. New structures, as per model test results, should beinstalled under subsequent phases, only if sediment managementprocedures do not prove to be adequate. The currently followedprocedure of periodic sand trap dredging may be extended to include thenew dredging/nourishment requirements. (PDF contains 245 pages.)
    Description: Submitted to: Jupiter Inlet District and Palm Beach County
    Keywords: Oceanography ; Engineering ; Hydraulic model ; Inlet hydraulics ; tidal inlets ; Jupiter Inlet ; Sedimentation ; Florida
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  • 17
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    Shoreline erosion due to extreme storms and sea level rise (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1473 | 3 | 2011-09-29 20:31:16 | 1473 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-07-08
    Description: A summary is presented of research conducted on beach erosion associated withextreme storms and sea level rise. These results were developed by the author andgraduate students under sponsorship of the University of Delaware Sea Grant Program.Various shoreline response problems of engineering interest are examined. Thebasis for the approach is a monotonic equilibrium profile of the form h = Ax2 /3 inwhich h is water depth at a distance x from the shoreline and A is a scale parameterdepending primarily on sediment characteristics and secondarily on wavecharacteristics. This form is shown to be consistent with uniform wave energydissipation per unit volume. The dependency of A on sediment size is quantifiedthrough laboratory and field data. Quasi-static beach response is examined torepresent the effect of sea level rise. Cases considered include natural and seawalledprofiles.To represent response to storms of realistic durations, a model is proposed inwhich the offshore transport is proportional to the "excess" energy dissipation perunit volume. The single rate constant in this model was evaluated based on largescale wave tank tests and confirmed with Hurricane Eloise pre- and post-stormsurveys. It is shown that most hurricanes only cause 10% to 25% of the erosionpotential associated with the peak storm tide and wave conditions. Additionalapplications include profile response employing a fairly realistic breaking model inwhich longshore bars are formed and long-term (500 years) Monte Carlo simulationincluding the contributions due to sea level rise and random storm occurrences. (PDF has 67 pages.)
    Keywords: Atmospheric Sciences ; Oceanography ; Beach erosion ; Storms ; Sea level rise ; Modeling
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  • 18
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    Beach monitoring project Sand Key Phase II Beach nourishment program (North Redington Beach and Redington Shores) Post-Nourishment Report Part II Offshore Profiles and Wave Data (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1478 | 3 | 2011-09-29 20:30:35 | 1478 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-07-08
    Description: This study presents the third post-nourishment survey (January 1989) results forthe Sand Key Phase II beach nourishment project carried out in June, 1988. Themonitoring program to this beach nourishment project is a joint effort betweenthe University of South Florida and University of Florida. The field surveysinclude a total of 26 profiles, encompassing approximately 3 miles of shorelineextending from DNR R-96 to R-1ll. The total calculated volume loss of sand inthe nourished segment (from R-99G to R-107) between the July 88 and January 89surveys is 51,113 cubic yards, which is a loss about 9.7 percent of 529,150 cubicyards actually placed in the nourishment project. The total loss of sand computedin the entire survey area is 26,796 cubic yards, which is only 5.1 percent of thesand placed in the nourishment project. It is stressed that a part of these netvolume reductions is due to the background erosion and not due to spreading lossesinduced by the nourishment project. (PDF contains 168 pages.)
    Description: Prepared for: Pinellas County and Division of Beaches and Shores Florida Department of Natural Resources
    Keywords: Management ; Conservation ; Oceanography ; Sand Key ; Florida ; Beach nourishment ; North Redington Beach
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  • 19
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    Inlet stability and case histories, Part II (2021)
    Coastal and Oceanographic Engineering Department, University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1475 | 3 | 2011-09-29 20:31:06 | 1475 | Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
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    Publication Date: 2021-07-08
    Description: Inlets which require frequent channel dredging due to gradual shoaling,exhibit migration, or shoal up during storms, are in general unstable andpose a problem to the engineer. This problem of inlet stability is a complexone, because of the rather large number of variables that go into definingstability. The reference here is to inlets on sandy coasts only, becausethe absence of sand or similar sedimentary material the problem does notarise. Shell is also found in varying proportions with sand. Some of thisis. new, whereas in some areas it is ancient reworked material whose sizedistribution is close to that of the sand with which it is associated. (PDF has 24 pages.)
    Keywords: Oceanography ; Engineering ; Tidal inlets
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  • 20
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    Categorized bibliography for a conceptual model of salt marsh management on Merritt Island, Florida (2021)
    Florida Cooperative Fish and Wildlife Research Unit , University of Florida | Gainesville, FL
    In:  http://aquaticcommons.org/id/eprint/1244 | 3 | 2011-09-29 20:55:15 | 1244 | Florida Cooperative Fish and Wildlife Research Unit
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    Publication Date: 2021-07-06
    Description: Enclosed is a bibliography of 556 published articles,technical reports, theses, dissertations, and books that form thebasis for a conceptual model of salt marsh management on MerrittIsland, Florida (Section 1). A copy of each item is available onfile at the Florida Cooperative Fish and Wildlife Research Unit,Gainesville. Some relevant proprietary items and unpublisheddrafts have not been included pending permission of the authors.We will continue to add pertinent references to our bibliographyand files. Currently, some topics are represented by very fewitems. As our synthesis develops, we will be able to indicate asubset of papers most pertinent to an understanding of theecology and management of Merritt Island salt marshes.(98 page document)
    Description: Research Work Order no. 15
    Description: Supported by: The National Aeronautics and Space Administration in cooperation with U.S. Department of the Interior Fish and Wildlife Service Cooperative Agreement No. 14-16-0009-1544
    Keywords: Conservation ; Management ; Biology ; salt grass ; Merritt Island ; Florida
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