Ice Question for the Scientifically Inclined

[MrShane]

Great explanation thank you... I like your last line, I think that need to know goes a long ways toward making things relevant to us so we pay attention to it... That's when we really learn something isn't it?  Thanks Jeff

I always believed in a shallow reservoir such as Cutler that lake ‘turnover’ happens a couple times a day, therefore keeping the cap from getting thicker, by weakening it from bottom up.
The earth at bottom of lakes heats up, accelerated by sun’s rays plus earth temp, then raises that warmer water up till it sits below ice cap.
Then sun goes down and top portion of column now cools quickly and sinks to earth and then repeats by heating and cooling.
Kind of a vertical current in a way.
A deep body of water would still have this action but not nearly in the same amount of cycles in a 24 hour period.
But…..I never spent a single day in school past high school so I could be 100% wrong about this.