Here's a random question that I've never been able to discern out on the mountain after many years of skiing. How would the depth of the base and skier traffic affect the steepness of a slope? I've been trying to think of it logically in that skiers would tend to push snow downhill so snow would collect in the lower part of a certain pitch and kind of level out the angle, but then does that mean the top part would be steeper and more true to the slope of the ground underneath? Obviously, the very top is often steeper when there's a wind cornice. The follow-up conclusion would be whether or not slopes get steeper or flatter as the season progresses and the base builds. I'm guessing maybe flatter? Also, I would think grooming would affect all this for slopes that are periodically groomed.
I think I've seen pictures of slopes in the summer and they look somewhat steeper than what I recall in the winter, but maybe that's an optical illusion being that in the winter it's all white. Then again, maybe there's no difference at all and this is a silly question.
Anyone have any insights?