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Infiltration reduces Wave boundary layer which increases shear stress at the bed, Infiltration reduces swash wash due to loss of water, Sheltered Environments important Basin Shape, Sheltered Environments important Offshore wave energy level, parametric models because post-storm recovery inhibited due to restricted sediment supply, parametric models because insufficient wave energy following storm, What is a Low-Energy Beach and what makes it distinct from high energy beaches? have Wave Heights < 0.25 m, What is a Low-Energy Beach and what makes it distinct from high energy beaches? have Hs during strong onshore winds < 0.50 m, Wave Heights < 0.25 m remember Energy proportional to wave height squared, narrow beach width have Steep Foreshores, narrow beach width have low-tide terrace, What is a Low-Energy Beach and what makes it distinct from high energy beaches? other characteristics include Surface Pavements, What is a Low-Energy Beach and what makes it distinct from high energy beaches? other characteristics include pebbles and shells, What is a Low-Energy Beach and what makes it distinct from high energy beaches? other characteristics include swash bars, What is a Low-Energy Beach and what makes it distinct from high energy beaches? other characteristics include vegetation and wrack accumulations, What is a Low-Energy Beach and what makes it distinct from high energy beaches? other characteristics include longshore and transverse bars, Morphology inherited from higher energy events sometimes Beach in state of partial recovery, surge (non-tidal water levels) responsible for Storm Berms, Morphology inherited from higher energy events significant problems applying parametric models, Fetch-limited Environments characteristics Short wave periods, What is a Low-Energy Beach and what makes it distinct from high energy beaches? have narrow beach width, Fetch-limited Environments important Local winds, Fetch-limited Environments important Basin Shape, Wave Heights < 0.25 m distinction between Sheltered Environments, Wave Heights < 0.25 m distinction between Fetch-limited Environments, water levels controls which environment dominates extremely dissipative, water levels controls which environment dominates highly reflective, Steep Foreshores are highly reflective, water levels moving level of Wave Heights < 0.25 m, insufficient wave energy following storm by definition Wave Heights < 0.25 m, Beach Ground Water System leads to Exfiltration, Beach Ground Water System leads to Infiltration, What is a Low-Energy Beach and what makes it distinct from high energy beaches? role of Tides, What is a Low-Energy Beach and what makes it distinct from high energy beaches? role of surge (non-tidal water levels), Tides change water levels, seepage leads to sediment transport in beach face seepage flows, seepage leads to decreased desiccation of plants and animals on the beach face, Sheltered Environments characteristic large variations in Hs along shore due to site-specific controls, Sheltered Environments characteristic Longer wave periods, Tides Greater than surge (non-tidal water levels), Exfiltration increases wave boundary layer which decreases shear stress at the bed, Exfiltration increases seepage, low-tide terrace are extremely dissipative, low-tide terrace can be well vegetated, low-tide terrace can be Bioturbated, Longer wave periods results in shore-parallel approach angle, Longer wave periods results in More affected by refraction, Short wave periods results in Less affected by refraction, Short wave periods results in highly oblique approach angles, What is a Low-Energy Beach and what makes it distinct from high energy beaches? have Morphology inherited from higher energy events, Tides control Beach Ground Water System