Parameter Tree:
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > BARRIER ISLANDS

Definition:
Elongate sand bar formed parallel to the shore in areas of
considerable sediment flux, but separated from shore by a lagoon, and
pierced at intervals by inlets through which the sea communicates with
lagoon and river. 


Reference:
Neshyba, S. 1987. Oceanography, Perspectives on a Fluid Earth. John Wiley and
Sons, Inc. p. 478.