Research from 2013 had suggested these "troughs" might be caused by katabatic winds—winds that start off moving rapidly, causing erosion, and then quickly drop and slow down, resulting in deposits.
“So land is parched and you get all these up drops and get all these anabatic/katabatic winds in the valley in the afternoon. Mornings are much calmer.” That is less of an issue with ...
The jargon may sometimes have non-weather and boating enthusiasts Googling things like “katabatic squalls,” “violent sirocco” or “mizzen,” but Fox grounds his writing with good stories ...