I don’t understand what you mean by your question
Sand can be trucked in from other sources and filtered for sediments to eventually make way into the air and water. They can also build seawalls, revetments, and jetties along the shoreline. :)
Northern Hemisphere portrays the upper air westerlies having troughs as well as ridges. The upper air westerlies depicts clockwise curvature in elevation. On a weather map of the Northern Hemisphere, one can see the westerlies among the subtropical highs and subpolar lows.
