I've had ice cover for two weeks with some on and off thin snow layer. Today there was 3.5" of ice and 2" of snow cover. At 13 ft deep water at one ft deep DO was 11.8ppm, 39.2F with 90% DO saturation whereas at 2" from the bottom DO was 11.4ppm, 39.6F with 85% saturation. I will not start aeration until the DO on the bottom is 2ppm.
