Sand dunes provide natural coastal protection against storm surge and high waves, preventing or reducing coastal flooding and structural damage, as well as providing important ecological habitat. They are created when wind deposits sand on top of each other until a small mound starts to form. Once that first mound forms, sand piles up on the windward side more and more until the edge of the dune collapses under its own weight. Pictured here are sea oats whose extensive root system holds beach dunes together and prevents the sand and soil from blowing away during storms, Atlantic Beach, Jackso
Sand dunes provide natural coastal protection against storm surge and high waves, preventing or reducing coastal flooding and structural damage, as well as providing important ecological habitat. They are created when wind deposits sand on top of each other until a small mound starts to form. Once that first mound forms, sand piles up on the windward side more and more until the edge of the dune collapses under its own weight. Pictured here are sea oats whose extensive root system holds beach dunes together and prevents the sand and soil from blowing away during storms, Atlantic Beach, Jacksonville, Fl.
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Photo credit: © Operation 2022 / Alamy / Afripics
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Keywords: #engineering, #infrastructure, #innovation, #natu, #science, coastlines, dunes, earthday
