Category: "Dirty snow"

Drainage Lines on Snow

October 18th, 2019
Last night I dreamed of a passage along a narrow river in a thick forest followed by a perilous descent down steep snow on a mountain. And then this morning a friend sent me this picture. Actually, I had asked him about the photo yesterday, so that… more »

Dark lines in melting snowpiles

March 30th, 2019
Snow cleared from a city street slowly vanishes, leaving lines of "dirt". [image:131] (Click on images to view more closely.) Where the snow has a distinct edge, you can see the dark lines are ridges, some of which can be quite sharp: [image:132] Why is… more »