What is Barrier island?
[[File:Baie_de_Mobile.jpg|thumb|right|The Mississippi-Alabama barrier islands guarding [[Mobile Bay]] and [[Mississippi Sound]]]] '''Barrier islands''' are [[Landform|landforms]] which are flat or lumpy areas of [[sand]]. It is formed by [[Wave (physics)|waves]] and [[Tide|tides]]. They usually occur in chains. It can consist from a few [[Island|islands]] to more than a dozen. They can change during [[Storm|storms]] and other actions. The longest and widest barrier island is [[Padre Island]] of [[Texas]].<ref>{{Cite journal|last1=Garrison|first1=J. R.|last2=Williams|first2=J.|last3=Potter Miller|first3=S.|last4=Weber|first4=E. T.|last5=McMechan|first5=G.|last6=Zeng|first6=X.|date=2010-04-01|title=Ground-Penetrating Radar Study of North Padre Island: Implications for Barrier Island Internal Architecture, Model for Growth of Progradational Microtidal Barrier Islands, and Gulf of Mexico Sea-Level Cyclicity|url=http://dx.doi.org/10.2110/jsr.2010.034|journal=Journal of Sedimentary Research|volume=80|issue=4|pages=303–319|doi=10.2110/jsr.2010.034|bibcode=2010JSedR..80..303G|issn=1527-1404}}</ref> ==References== {{Reflist}} {{Geography-stub}} [[Category:Landforms]]