1. Several shadow dunes may eventually join to form an incipient foredune . 2. It more like growing on the active sand area and windward side of foredune . 3. About long, it passes between the lake and the foredune on the west. 4. When an incipient foredune reaches a height of about, it has a significant wind shadow of its own. 5. When a foredune becomes high, it may trap all of the wind-blown sand from the beach. 6. The dune is considered a foredune , meaning a dune that runs parallel to a shoreline, behind the high tide line of a beach. 7. As wind currents push sand inland, the " Ammophila arenaria " begins to accumulate massive amounts of sand creating large foredune ridges. 8. It spreads beyond landscape plantings and has invaded foredune , dune scrub, coastal bluff scrub, coastal prairie, and, most recently, maritime chaparral communities. 9. A "'foredune "'is a dune ridge that runs parallel to the shore of an ocean, lake, bay, or estuary. 10. This system consists of an offshore zone ( sediment bank ), transit zone ( beach and active foredune ) and a resting zone ( stable sand dunes ).
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