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Q&A Is digging a "cold hole" really effective when sheltering in a snowed area?

One recommendation I got in case of emergency or intentional sheltering in a snowy location is to dig a lower hole, so that the cold air can move there, while one can sleep higher up where the heat...

1 answer  ·  posted 13y ago by Stefano Borini‭  ·  last activity 12y ago by System‭

Question snow shelter
#2: Attribution notice added by user avatar System‭ · 2020-04-17T19:50:01Z (over 4 years ago)
Source: https://outdoors.stackexchange.com/q/91
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/
#1: Initial revision by user avatar Stefano Borini‭ · 2020-04-17T19:50:01Z (over 4 years ago)
<p>One recommendation I got in case of emergency or intentional sheltering in a snowy location is to dig a lower hole, so that the cold air can move there, while one can sleep higher up where the heat stays. I understand the physics involved, but I am not aware of how much difference it can do in practice. How many degrees are we talking here ? Is it really recommended, or does it just waste energy ?</p>