How and why do barrier islands and tidal inlets move over time?

What will be an ideal response?


Barrier islands are long narrow ridges of land that form parallel to the mainland. Tidal inlets separate the islands and focus tide-produced currents between the lagoon and open ocean. The barrier islands and inlets shift in the direction of longshore currents that erode, transport, and deposit the barrier-island sediment. The longshore currents deposit sediment on the up-current side of an inlet and erode the down-current side of the inlet. New inlets may form where storms erode a breach through a barrier island and divide it into two or more islands.

Environmental & Atmospheric Sciences

You might also like to view...

What type of ocean wave has a disturbing force of sudden changes in atmospheric pressure?

a. Seiche waves b. Capillary waves c. Wind waves d. Tidal waves

Environmental & Atmospheric Sciences

Scattered thunderstorms (sometimes called “pop-up” or “popcorn” storms) that typically form on warm, humid days are often referred to as ____________________ thunderstorms or ____________________ thunderstorms.

Fill in the blank with correct word. A. ?ordinary cell; air-mass B. air-mass; ordinary cell C. ordinary; air mass D. air mass; ordinary

Environmental & Atmospheric Sciences

Why does irrigation tend to diminish soil fertility?

Environmental & Atmospheric Sciences

A wind rose is used to identify:

A) locations with similar wind directions during a storm. B) prevailing wind direction. C) the approximate degree of Coriolis deflection at a specific location. D) wind direction at a given moment.

Environmental & Atmospheric Sciences