2 Erosion and the Outer Banks Read the article on Outer Banks beach erosionAs you read, highlight words or things that you do not know.Once you finish reading, write a summary of the article.
3 Longshore DriftWhen swimming in the ocean, have you ever wondered why you tend to be carried down the beach, away from your towel in an undertow?The transportation of sediments along a coast at an angle to the shoreline
4 Preventing Beach Erosion Sea Wall – a structure to protect a coast from erosionBuilt parallel to the shoreDesigned to shield the coast and defend property from the force of breaking waves
5 Causes the sediments in front of the wall to be swept in the ocean. Further loss of beach prompts people to build a bigger, “better” wall to stop the erosion caused by the original seawall.
6 Preventing Beach Erosion Breakwater - sediment movement is blocked from continuing along the coastline, disrupting the longshore transport.Built parallel to the shore lineProtects boats from the force of large breaking waves by creating a quiet water zone near the shore
7 Preventing Beach Erosion Groin - designed to trap sediments in an area of the beach.disrupt the longshore transportPerpendicular to the shorethe beach on the other side of the groin will continue to loose sediments