Analyze why Greenland has snow all year round. [Not in the Arctic Circle]

There is a story about the origin of the name Greenland. According to legend, in ancient times, around 982 AD, there was a Norwegian pirate who set out from Iceland in a small boat and planned to cross the ocean. All his friends think he is too bold and worry about his safety. Later, he found a piece of water grass less than one kilometer south of Greenland, which was green and liked it very much. After returning home, he proudly said to his friends, "I not only came back safely, but also found a green continent!" " So Greenland became its permanent name. Greenland is the largest island in the world, with an area of 2 1.75 million square kilometers. About four fifths of the island is in the Arctic Circle. The temperature in Greenland is below 0 degrees all year round, and the coldest in some places can reach MINUS 70 degrees!

Because there is only snow and no rain all year round, Greenland has no permafrost except for a few areas such as the southwest coast, only a few trees and green spaces, and other areas are ice and snow kingdoms. Standing on the green land, chanting "Thousands of miles of ice, Wan Li snow" can find a full feeling. 85% of the island is covered by glaciers and heavy icebergs. All kinds of icebergs and glaciers have become the wonders of Greenland. When you have rich associations with them, you will feel that you are in an exaggerated ancient battlefield for a while and in Yuan Ye, Ma Benteng. The ice in Greenland contains a lot of bubbles, which will make a continuous popping sound when put into water, which makes it a very good cold drink. People call it "permanent ice". This kind of ice is clean and high in purity, so it is a rare enjoyment to drink "ice for ten thousand years" in hot summer. Greenland is rich in "permanent ice", with an average thickness of 2300 meters, second only to the modern huge continental glaciers in Antarctica.