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Submarine geomorphology of the continental shelf off Southeast Florida based on interpretation of airborne laser bathymetry.
Title
Submarine geomorphology of the continental shelf off Southeast Florida based on interpretation of airborne laser bathymetry.
Creator
Finkl, Charles W., Benedet, Lindino, Andrews, Jeffrey L.
Date Issued
2005
PURL
http://purl.flvc.org/fcla/dt/3174401
Format
Document (PDF)
Processes controlling development of erosional hot spots on a beach nourishment project
Title
Processes controlling development of erosional hot spots on a beach nourishment project.
Creator
Benedet, Lindino, Finkl, Charles W., Hartog, W. M.
PURL
http://purl.flvc.org/fcla/dt/3183220
Format
Document (PDF)
Regional strategies for coastal restoration along Louisiana barrier islands.
Title
Regional strategies for coastal restoration along Louisiana barrier islands.
Creator
Campbell, Thomas, Benedet, Lindino, Finkl, Charles W.
Abstract/Description
This paper reviews physical, geologic and environmental parameters of Louisiana barrier islands to support the definition of regional strategies and management practices for long-term coastal restoration. For management purposes the barrier island systems of Louisiana are divided into a series of coastal segments to be maintained over the long term. Recommendations are drawn for each coastal segment on the basis of biophysical properties. Two separate design approaches for barrier island...
Show moreThis paper reviews physical, geologic and environmental parameters of Louisiana barrier islands to support the definition of regional strategies and management practices for long-term coastal restoration. For management purposes the barrier island systems of Louisiana are divided into a series of coastal segments to be maintained over the long term. Recommendations are drawn for each coastal segment on the basis of biophysical properties. Two separate design approaches for barrier island restoration are elucidated (stable location design and retreat design) including sediment volume requirements for the restoration of specific barrier islands. In order to maintain long-term stability, intensive restoration programs require barrier island nourishment, vegetative plantings, and coastal structures in some cases. Restoration strategies, practices, and design approaches are refined by employing monitoring data in an adaptive management process.
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Date Issued
2005
PURL
http://purl.flvc.org/fcla/dt/3174198
Format
Document (PDF)
Regional strategies for coastal restoration along the Louisiana Chenier plain
Title
Regional strategies for coastal restoration along the Louisiana Chenier plain.
Creator
Campbell, Thomas, Benedet, Lindino, Finkl, Charles W.
Abstract/Description
In this paper, we review physical, geological, and environmental parameters of the Louisiana Chenier Plain to support the definition of regional strategies and management practices for long-term coastal restoration along this coastal segment. For management purposes, the Chenier Plain of Louisiana is divided into three main coastal segments that could be maintained over the long term. Recommendations are drawn for each coastal segment on the basis of bio physical properties. Approximate...
Show moreIn this paper, we review physical, geological, and environmental parameters of the Louisiana Chenier Plain to support the definition of regional strategies and management practices for long-term coastal restoration along this coastal segment. For management purposes, the Chenier Plain of Louisiana is divided into three main coastal segments that could be maintained over the long term. Recommendations are drawn for each coastal segment on the basis of bio physical properties. Approximate volumetric requirements for coastal restoration based on historical rates of shoreline change are presented. Discussions of potential sand resources are based on data published in the professional literature. Compared with the Louisiana barrier islands, the Chenier Plain is less well known; consequently, there is significantly less data related to shoreline change, sedimentology, beach profiles, and large-scale geomorphological evolution. Future restoration projects in this coastal region must direct attention toward obtaining essential coastal data that is lacking for many coastal segments along the Louisiana Chenier Plain.
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Date Issued
2005
PURL
http://purl.flvc.org/fcla/dt/3174001
Format
Document (PDF)
Interpretation of seabed geomorphology based on spatial analysis of high-density airborne laser bathymetry
Title
Interpretation of seabed geomorphology based on spatial analysis of high-density airborne laser bathymetry.
Creator
Finkl, Charles W., Benedet, Lindino, Andrews, Jeffrey L.
Abstract/Description
Airborne laser bathymetric (ALB) systems rapidly acquire large, high-quality datasets via variable swath widths that are independent of water depth. Laser bathymetric survey tools have applicability in clear coastal (Case II) waters down to 270 meters depth. Deployed along the southeast Florida (Palm Beach, Broward, and Miami-Dade Counties)coast, an advanced ALB system provided a continuous dataset for 160 kilometers of coast from onshore to 6 kilometers offshore. Digital terrain models...
Show moreAirborne laser bathymetric (ALB) systems rapidly acquire large, high-quality datasets via variable swath widths that are independent of water depth. Laser bathymetric survey tools have applicability in clear coastal (Case II) waters down to 270 meters depth. Deployed along the southeast Florida (Palm Beach, Broward, and Miami-Dade Counties)coast, an advanced ALB system provided a continuous dataset for 160 kilometers of coast from onshore to 6 kilometers offshore. Digital terrain models developed from this high-density bathymetric data permitted recognition of numerous seafloor features and bathymetric patterns from different image formats. Bathymetric analysis of the 600-km2 survey area on the narrow continental shelf shows inherited lithologic features that are partly covered by surficial sediments. Primary parabathic provinces include: (1) nearshore rocky zones dominated by the Anastasia Formation, (2) coralalgalreef systems (Florida Reef Tract [FRT]), and (3) marine terraces. Secondary sedimentary subprovinces include shoreface sands, inter-reefal sedimentary infills (coral rubble in basal sequences and near reef gaps), and finer-grained materials seaward of the FRT. Tertiary topographic features include: (1) longshore bar and trough systems, shoals, sand sheets, and diabathic channels; (2) reef crests and ledges, forereef spurs and grooves, sediment ramps in large reef gaps, and incised paleo-river channels; and (3) drowned karst topography. Hierarchical organization of these bathymetric features is now possible for the first time because of the increased accuracy and density of bathymetric data obtained by ALB systems.
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Date Issued
2005
PURL
http://purl.flvc.org/fcla/dt/3174249
Format
Document (PDF)
Coupling geological concepts with historical data sets in a MIS framework to prospect for beach-compatible sands on the inner continental shelf: experience on the eastern Texas gulf coast
Title
Coupling geological concepts with historical data sets in a MIS framework to prospect for beach-compatible sands on the inner continental shelf: experience on the eastern Texas gulf coast.
Creator
Finkl, Charles W., Andrews, Jeffrey L., Campbell, Thomas J., Benedet, Lindino, Waters, Jeffrey P.
Abstract/Description
Chronic erosion of beaches along the eastern Texas barrier island coast is increasingly mitigated by renourishment efforts that periodically place large volumes of sand onshore. Location of beach-quality sands on the inner continental shelf is challenged in an environment where terrestrial rivers deposit fluvial sediments in back bays and lagoons instead of offshore and by shelf areas that are dominated by muds. The search for beach-quality sands thus requires understanding of the coastal...
Show moreChronic erosion of beaches along the eastern Texas barrier island coast is increasingly mitigated by renourishment efforts that periodically place large volumes of sand onshore. Location of beach-quality sands on the inner continental shelf is challenged in an environment where terrestrial rivers deposit fluvial sediments in back bays and lagoons instead of offshore and by shelf areas that are dominated by muds. The search for beach-quality sands thus requires understanding of the coastal geological framework and morphodynamic processes that accompanied late Quaternary evolution in the northern Gulf of Mexico. The occurrence of surficial sand deposits as positive bathymetric features on the seafloor (ridges, shoals, banks) and presence of sands buried in paleovalley (drowned channels) infill sequences makes for complicated search procedures that must accurately differentiate a range of sedimentary settings by geophysical and geotechnical surveys. Compilation of vast amounts of data from historical core logs and newly acquired information in a marine information system (MIS) permits spatial analyses in a format that is compatible with development of a sand search model. The resulting differentiated investigative sand-search methods, that comprise part of the Texas Sand Search Model (TSSM), are able to target potential borrow areas in ebb-tidal shoals, low-relief ridge deposits, high-relief banks, and in mud-covered paleovalley sequences.
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Date Issued
2004
PURL
http://purl.flvc.org/fcla/dt/3174246
Format
Document (PDF)
Morphodynamic classification of beaches on the Atlantic coast of Florida: geographical variability of beach types, beach safety and coastal hazards
Title
Morphodynamic classification of beaches on the Atlantic coast of Florida: geographical variability of beach types, beach safety and coastal hazards.
Creator
Benedet, Lindino, Finkl, Charles W., Klein, A. H. F.
PURL
http://purl.flvc.org/fcla/dt/3183215
Format
Document (PDF)
Fluvial sand sources for barrier island restoration in Louisiana: Geotechnical investigations in the Mississippi River
Title
Fluvial sand sources for barrier island restoration in Louisiana: Geotechnical investigations in the Mississippi River.
Creator
Finkl, Charles W., Khalil, Syed M., Andrews, Jeffrey L., Keehn, S., Benedet, Lindino
PURL
http://purl.flvc.org/fcla/dt/3183200
Format
Document (PDF)
Interpretation of beach and nearshore morphodynamics, based on detailed geomorphological mapping
Title
Interpretation of beach and nearshore morphodynamics, based on detailed geomorphological mapping.
Creator
Benedet, Lindino, Florida Atlantic University, Finkl, Charles W.
Abstract/Description
Shorelines are prefigured by inherited geologic features and spatially-defined process-form relationships that require in depth study. This thesis is based on the interpretation, delineation, and analysis of coastal geomorphological features, as mapped from large-scale (e.g. 1:3600), digital, georeferenced, stereo-paired, color, aerial photography. The morphologic features identified include coral-algae reef tracts, rock reefs, sedimentary features such as bars, troughs, and sandflats, and...
Show moreShorelines are prefigured by inherited geologic features and spatially-defined process-form relationships that require in depth study. This thesis is based on the interpretation, delineation, and analysis of coastal geomorphological features, as mapped from large-scale (e.g. 1:3600), digital, georeferenced, stereo-paired, color, aerial photography. The morphologic features identified include coral-algae reef tracts, rock reefs, sedimentary features such as bars, troughs, and sandflats, and different types of engineering works. Interrelationships between these morphologic features are analyzed using a remote sensing-GIS/MIS (Geographic and Marine Information Systems) framework, and applying interpretive approaches in the analysis of beach and nearshore morphodynamics. Sediment and wave data is used to calculate the dimensionless fall velocity (O), which combined with local geomorphology, defines beach types. Special purpose geomorphological and morphodynamic maps generated here, together with assessment of beach types and analysis of downdrift erosion provides new insights and deep understanding of large scale coastal behavior, which is of great use to management planning strategies.
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Date Issued
2002
PURL
http://purl.flvc.org/fcla/dt/12969
Subject Headings
Geomorphological mapping, Environmental monitoring, Aerial photography in geomorphology, Coastal zone management
Format
Document (PDF)
Mechanisms that influence the performance of beach nourishment: a case study in Delray Beach, Florida, USA
Title
Mechanisms that influence the performance of beach nourishment: a case study in Delray Beach, Florida, USA.
Creator
Hartog, W. M., Benedet, Lindino, Walstra, D-J. R., van Koningsveld, M., Stive, M. J. F., Finkl, Charles W.
PURL
http://purl.flvc.org/fcla/dt/3183205
Format
Document (PDF)