Resonance may be the wrong word there.
The effect I meant to describe is the oscillation that occurs behind an object in it's wake. If that oscillation happened near a vehicle during the formation of the wind sculpture, it would have affected the actual airflow and deposit sites.
Just because the shape "looks" like it matches something you've seen on here and in Hucho/other books, doesn't make it ideal.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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