Under what circumstance would significant overwash initiate barrier island migration?

💡 Explanation

Reduced sediment is the initiator because it diminishes the sand reservoir available for beach nourishment and dune building; this causes increased overwash via Wave action and Landward transport , therefore the barrier migrates landward rather than remaining stationary.

• Which process limits the height of topographic features along a transform fault boundary?
• Which feedback mechanism explains higher sea surface temperatures that disrupt upwelling within an ocean gyre?
• Which mechanism causes the intertropical convergence zone rising where air is converging at the boundary between Hadley cells?
• Which mechanism modifies global precipitation patterns during an El Niño event's mature phase?
• Which shift in global precipitation patterns is caused by the enhanced Hadley cell effect due to rising temperatures?
• Which effect arises from differing velocities along a transform fault boundary?