Bottom D.O. is taking on that winter look.
Ice is 13 inches at the location where temperature and D.O. sampling occurs. We drilled quite a few holes this weekend (at least 30). The ice ranges from 11.5" TO 14". The thickest ice appears in the deeper water. If the warmest water is closest to the bottom then it follows that ice that is closer to the warmer bottom would develop more slowly than deep water ice (ignoring all other factors such as wind and current).
Remember that my ice commentary only applies here. I suspect every body of water will have differing ice formulation characteristics.
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