Image
![A man standing in front of a wall of snow that is backlit, revealing the many different layers of snow.](/sites/default/files/styles/large/public/David_Noone_resize.jpg?itok=mBvbxxe7)
Image Credit
David Noone, Oregon State University
Image Caption (short)
David Noone in a snow pit that reveals layers of snow that pile up one after another as different snowstorms pass. Dark and light layering provide evidence of evaporation and refreezing snow.