Describe how construction of groins and jetties affect adjacent beaches

What will be an ideal response?


Groins are walls built perpendicular to the shoreline to trap sediment being moved by longshore current, which widens the beach on the up-current of the groin. Sediment supply down-current of the groin is reduced, so erosion in this area is accelerated. Jetties function in the same way, but stabilize the location of an inlet. Beaches up-current of a jetty accumulate sediment whereas those down-current of the jetty are sediment-starved and subject to wave and current erosion.

Environmental & Atmospheric Sciences

You might also like to view...

A vernacular region is the visible, material expression of human settlement including the past and the present

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

The most important aspect of the WTO to the U.S. concerns ________ ________ ________ in which the U.S. has a strong competitive advantage

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

What is the relationship between the bases of the codon on mRNA and the anticodon on tRNA?

A) They have complementary base sequences. B) They have identical base sequences. C) They have similar base sequences. D) They have palindromic base sequences.

Environmental & Atmospheric Sciences

An example of a region where mylonites are formed is the:a

Cascade Range. b. mid-oceanic ridges. c. San Andreas Fault Zone. d. Valles Marianas Rift Zone. e. Mendocino Fracture Zone.

Environmental & Atmospheric Sciences