According to the USGS groundwater is replenished by precipitation. It also has to be significant precipitation in order to actually make it past all of the various barriers & losses along the way.
BTW, I was mistaken in my thinking. I didn't think that water soaking into the ground locally would find it's way into an aquifer. Apparently, this thinking is pretty common. It's mentioned in the first paragraph of the article.
Still doesn't mean that moist air is going to condense on the surface and somehow find it's way into the aquifer.
Any condensation would be WAY less than even the mildest rainstorm. Hardly enough to dampen the sand. There's NO WAY condensation in an arid environment is going to be significant enough to saturate the ground to the level necessary to make a significant contribution to the groundwater.
I know "Pickett Said" but Pickett is a human just like any other person. He can be mistaken.
Hitchens' razor What can be asserted without evidence can be dismissed without evidence
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