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| a ring-shaped coral reef or a string of closely spaced small coral islands, enclosing or nearly enclosing a shallow lagoon. |
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| the water that rolls back down a beach after a wave has broken. |
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A long, relatively narrow island running parallel to the mainland, built up by the action of waves and currents and serving to protect the coast from erosion by surf and tidal surges. |
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| a long coral reef near and parallel to the shore. |
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| an expanse of sand or pebbles along a shore. |
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| a hollow formed in a region of shifting sands or light soil by the action of the wind. |
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| rocklike deposit consisting of the calcareous skeletons secreted by various anthozoans. Coral deposits often accumulate to form reefs or islands in warm seas. |
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| the erosion of sand, soil, etc., by the action of the wind. |
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| A desert pavement is a desert surface that is covered with closely packed, interlocking angular or rounded rock fragments of pebble and cobble size. |
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| A dust storm or sandstorm is a meteorological phenomenon common in arid and semi-arid regions and arises when a gust front passes or when the wind force exceeds the threshold value where loose sand and dust are removed from the dry surface. |
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| an area where ocean waves are being generated by the wind. |
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| long, narrow, deep inlet of the sea between steep slopes. |
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| a coral reef close to and along the land. |
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| an area of shallow water separated from the sea by low sandy dunes. |
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| a loamy deposit formed by wind, usually yellowish and calcareous, common in the Mississippi Valley and in Europe and Asia. |
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| A current found along the coast that flows parallel to the beach. |
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| the basic unit of geologic time, during which a standard rock system is formed: comprising two or more epochs and included with other periods in an era. |
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| the change in direction of a propagating wave (light or sound) when passing from one medium to another. |
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A strong, narrow surface current that flows rapidly away from the shore, returning the water carried landward by waves. Also called rip tide, tiderip.
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| sandbar wave height[image] |
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| Onshore sediment transport and sandbar migration are important to the morphological evolution of beaches but are not well understood. |
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| An erosional landform, produced by wave action, which is either at the seaward edge of the coast or at the landward side of a wave-cut platform and which denotes the inner limit of the beach erosion. |
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| to splash, as things in water, or as water does: Waves were swashing against the piers. |
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| an unusually large sea wave produced by a seaquake or undersea volcanic eruption. |
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| a pebble or cobble that has been faceted, grooved, and polished by the erosive action of wind-driven sand. |
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| the distance, measured in the direction of propagation of a wave, between two successive points in the wave that are characterized by the same phase of oscillation. |
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