Low-energy sandy beaches of Southwestern Australia: two-dimensional morphology, sediments and dynamics

    Research output: ThesisDoctoral Thesis

    105 Downloads (Pure)

    Abstract

    [Truncated abstract] The morphology of sandy beaches is the net result of sediment transport and deposition that is driven by a range of dynamic processes, including waves, tides, non-tidal sea level fluctuations, beach groundwater fluctuations and winds. Beaches continuously change their form in response to variation in the absolute and relative energies of the dynamic processes and their interaction with beach sediments. Previous research has focused on the morphology and dynamics of sandy beaches which were controlled by moderate to high wave and/or tidal energies. However, a large proportion of the world's coastlines experience a combination of both modally low wave-energies
    and micro-tidal conditions. These circumstances may be found in a variety of sites
    including sheltered ocean environments, inland seas, estuaries and lakes.
    This thesis examines the range of beach types that form on micro-tidal sandy
    beaches under conditions of very low wave energy. It extends previous nearshore
    morphodynamic research. Field data were obtained from 51 surveys conducted on
    beaches around the coast of Southwestern Australia; from Geraldton on the west to Cape Arid on the south coast. Wave energy at the shoreline of Southwestern Australia is generally low, but exhibits a high temporal and spatial variability. This gives rise to a wide range of nearshore environments and presents an ideal field environment for investigation of the morphodynamics of low-energy, micro-tidal sandy beaches in comparison with the forms associated with higher wave energy and/or tidal range.
    Original languageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • The University of Western Australia
    Award date1 Aug 1994
    DOIs
    Publication statusPublished - 1994

    Fingerprint

    beach
    sediment
    energy
    wave energy
    coast
    nearshore environment
    tidal range
    inland sea
    morphodynamics
    sediment transport
    shoreline
    tide
    estuary
    sea level
    groundwater
    lake
    ocean

    Cite this

    @phdthesis{2320391a8ef44782af334e5ee1c3d300,
    title = "Low-energy sandy beaches of Southwestern Australia: two-dimensional morphology, sediments and dynamics",
    abstract = "[Truncated abstract] The morphology of sandy beaches is the net result of sediment transport and deposition that is driven by a range of dynamic processes, including waves, tides, non-tidal sea level fluctuations, beach groundwater fluctuations and winds. Beaches continuously change their form in response to variation in the absolute and relative energies of the dynamic processes and their interaction with beach sediments. Previous research has focused on the morphology and dynamics of sandy beaches which were controlled by moderate to high wave and/or tidal energies. However, a large proportion of the world's coastlines experience a combination of both modally low wave-energiesand micro-tidal conditions. These circumstances may be found in a variety of sitesincluding sheltered ocean environments, inland seas, estuaries and lakes.This thesis examines the range of beach types that form on micro-tidal sandybeaches under conditions of very low wave energy. It extends previous nearshoremorphodynamic research. Field data were obtained from 51 surveys conducted onbeaches around the coast of Southwestern Australia; from Geraldton on the west to Cape Arid on the south coast. Wave energy at the shoreline of Southwestern Australia is generally low, but exhibits a high temporal and spatial variability. This gives rise to a wide range of nearshore environments and presents an ideal field environment for investigation of the morphodynamics of low-energy, micro-tidal sandy beaches in comparison with the forms associated with higher wave energy and/or tidal range.",
    author = "Hegge, {Bruce John}",
    year = "1994",
    doi = "10.4225/23/5a94f2673808c",
    language = "English",
    school = "The University of Western Australia",

    }

    TY - THES

    T1 - Low-energy sandy beaches of Southwestern Australia: two-dimensional morphology, sediments and dynamics

    AU - Hegge, Bruce John

    PY - 1994

    Y1 - 1994

    N2 - [Truncated abstract] The morphology of sandy beaches is the net result of sediment transport and deposition that is driven by a range of dynamic processes, including waves, tides, non-tidal sea level fluctuations, beach groundwater fluctuations and winds. Beaches continuously change their form in response to variation in the absolute and relative energies of the dynamic processes and their interaction with beach sediments. Previous research has focused on the morphology and dynamics of sandy beaches which were controlled by moderate to high wave and/or tidal energies. However, a large proportion of the world's coastlines experience a combination of both modally low wave-energiesand micro-tidal conditions. These circumstances may be found in a variety of sitesincluding sheltered ocean environments, inland seas, estuaries and lakes.This thesis examines the range of beach types that form on micro-tidal sandybeaches under conditions of very low wave energy. It extends previous nearshoremorphodynamic research. Field data were obtained from 51 surveys conducted onbeaches around the coast of Southwestern Australia; from Geraldton on the west to Cape Arid on the south coast. Wave energy at the shoreline of Southwestern Australia is generally low, but exhibits a high temporal and spatial variability. This gives rise to a wide range of nearshore environments and presents an ideal field environment for investigation of the morphodynamics of low-energy, micro-tidal sandy beaches in comparison with the forms associated with higher wave energy and/or tidal range.

    AB - [Truncated abstract] The morphology of sandy beaches is the net result of sediment transport and deposition that is driven by a range of dynamic processes, including waves, tides, non-tidal sea level fluctuations, beach groundwater fluctuations and winds. Beaches continuously change their form in response to variation in the absolute and relative energies of the dynamic processes and their interaction with beach sediments. Previous research has focused on the morphology and dynamics of sandy beaches which were controlled by moderate to high wave and/or tidal energies. However, a large proportion of the world's coastlines experience a combination of both modally low wave-energiesand micro-tidal conditions. These circumstances may be found in a variety of sitesincluding sheltered ocean environments, inland seas, estuaries and lakes.This thesis examines the range of beach types that form on micro-tidal sandybeaches under conditions of very low wave energy. It extends previous nearshoremorphodynamic research. Field data were obtained from 51 surveys conducted onbeaches around the coast of Southwestern Australia; from Geraldton on the west to Cape Arid on the south coast. Wave energy at the shoreline of Southwestern Australia is generally low, but exhibits a high temporal and spatial variability. This gives rise to a wide range of nearshore environments and presents an ideal field environment for investigation of the morphodynamics of low-energy, micro-tidal sandy beaches in comparison with the forms associated with higher wave energy and/or tidal range.

    U2 - 10.4225/23/5a94f2673808c

    DO - 10.4225/23/5a94f2673808c

    M3 - Doctoral Thesis

    ER -