Winter Boat Covers Tarp
Why the top 16 to 1 / 4 inch of water held in my Boat canvas canvas freeze at temperatures above zero?
I have a boat that is covered with a canvas tarp that has a rain water trapped therein from the previous winter. That water freezes at temps below 40 degrees Fahrenheit, actually about 37 to 40 degrees. There is water right next to it in a plastic bucket that does not freeze, and also standing water in the concrete, etc. .. it will not freeze. The only things that are in around the ice is frozen water or on canvas, the top of my car, tiles on the roof and into the grass. So, why water freezes on canvas tarp above 32 degrees, but water from the plastic does not. I do not understand this. Thanks for any response. The air is usually very still on these nights and the skies are crisp and cleara, ie at sea level I live right on the coast (Santa Monica, CA). The material in the air come into contact with help to lower the temperature a little above the specific materials (grass, canvas, etc. ..)?
What you describe is very common when – say – the sky is clear at night and no wind. During the night, the heat of any object toward the sky, is lost by radiation. Yes, the electromagnetic energy of your tarp is moving away at light speed into space! E So it is for everything that is in the open. Actually there is no limit to the cold can get. Meanwhile, the air around it is a very good insulator and not so cool fast, so you can see the frost on the hood of your car, even if the air temperature is above the freezing point of reason. That lost energy during heat the night is you often see morning fog. The air is much colder than near the ground up and establishing an inversion, air does not rise as during the day and humidity close to the ground condenses into droplets of water. The reason that bucket of water does not freeze is that while the surface loses heat, it sinks into the background when he reaches 39 F, which is the temperature at which water is denser and heavier. In the process, water is hot again and then getting to the top of the bucket.
Winter Boat Cover for EdgeWater 188 CC Power Boat
