Is there ice on Polaris?

If the Arctic is land, it should belong to the polar ice sheet climate.

Although the actual North Pole is a part of the Arctic Ocean, due to the high latitude, the solar radiation energy obtained is extremely small. The Arctic even has a polar night for half a year from September 23rd to March 2nd1,with only heat expenditure and no heat income. Therefore, there is no doubt that the middle-aged temperature in the Arctic is far below zero. In this way, there is a huge layer of ice on the ocean surface in the Arctic, which will not melt all year round.

But under the ice, there is another world. Because of the thermal insulation of the ice, there is liquid seawater under the ice. Although the temperature of seawater is low, it can still keep the temperature of liquid. Examples of ice insulation can be associated with houses built by polar residents with ice. The indoor temperature will not be very high, but compared with the cold weather outside, it can already be called warm as spring.

To sum up, near the North Pole, the surface layer is extremely thick ice, and under the ice layer is seawater with low temperature all the year round.