Why are there stripes on this forest floor following a light dusting of snow?
Answer
This former farm field was plowed but apparently never harrowed before it was abandoned in the first half of the 1900s. Forest reclaimed the land but the legacy of the plowing remains. The snow is present in some of the plow troughs but not on the ground between, maybe because solar radiation isn’t high enough in the troughs to melt all the snow, or maybe because water collected and formed ice in the bottom of some of the troughs, allowing the snow to stick around even after the sun melted it elsewhere.
This week’s contest winner was Charlie Schwarz of S. Williamsport, PA