How would a permanently cold tower affect its environment?

In my world, physics works exactly like on Earth, except that there is a narrow, 400 foot tall magical column sticking vertically out of the ground, which is magically always extremely cold -- I'm thinking -100 ËšF (200 K), the temperature at which dry ice sublimates, but I'm curious about other temperatures as well. I haven't decided on the exact local environment, but I'm thinking a temperate climate.

How would a permanently cold column like this affect its surroundings?

What I have considered so far:

• I suspect it would become encased in frost from the surrounding humidity.
  • How far would we expect that frost to extend?
• Right at the edge of the freezing zone, I would expect there to be liquid water from the humidity, but I'm not sure how much.
  • Is there any limit?
  • Would a lake eventually form around it?
  • Would it flood the surrounding areas?
• Beyond the edge of the freezing zone, it would be cool.
  • How far would that extend?

posted over 6 years ago

Nathan Hinchey‭

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