1 Chapter 7: Beaches Chapter 7: Beaches & & Nearshore Nearshore Environment Environment General beach-nearshore profile Basic Beach Types and Sediments Seasonal Beach Cycles Predicting Erosion and Accretion General Beach General Beach-Nearshore Nearshore Profile Profile General Beach General Beach-Nearshore Nearshore Profile Profile Nearshore: includes shoal, break and surf zones up to the ridge and runnel system Longshore Sand Bars are the main feature General Beach General Beach-Nearshore Nearshore Profile Profile Breaks in the longshore sand bar are usually locations of rip currents Draw General Beach General Beach-Nearshore Nearshore Profile Profile Foreshore: intertidal region of the beach (spring high tide to spring low tide levels) Ridge-Runnel system: small scale bar in lower intertidal zone Ridge-Runnel System: small scale bar in lower intertidal zone Ridge = crest Runnel = trough Ephemeral, lasting a few weeks Present during intermediate stages of beach erosion or building Most noticeable during strong west/northwest wind events
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General Beach-Nearshore Profile - Hunter Collegefbuon/PGEOG_334/Lecture_pdfs...Basic Beach Types and Sediments Seasonal Beach Cycles Predicting Erosion and Accretion General Beach-Nearshore
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