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Breakwater

Breakwater
Coastal Lagoon
Breakwaters create safe harbors but can also trap sediment moving along the coast. Long Beach Harbor, April, 1998 Coastal lagoons fronted by barrier spits typically have entrances that migrate through time. Here, the entrance has been fixed by jetty construction. Carlsbad, CA, April 1998.

[Photos taken from a NOAA Twin Otter aircraft flying at 500 feet and 130 knots, aare from URL: http://coastal.er.usgs.gov/response/]
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Modified: 2 February 2005 (lh)