The Antarctic continent has become the coldest region in the world, with its average temperature 20 degrees lower than that of the Arctic. The average annual temperature in Antarctica is minus 25 degrees. The average annual temperature in the coastal areas of Antarctica is approximately minus 17 to 20 degrees Celsius; while the average annual temperature in inland areas is minus 40 to 50 degrees Celsius; as low as minus 56 degrees. The lowest temperature ever recorded on Earth is minus 88.3 degrees Celsius.
1 The coldness of Antarctica is primarily linked to its geographical location at high latitude. Due to its high latitude geographical location, there is no sun during the long polar night of the year.
2 The coldness of Antarctica is linked to the angle of incidence of the sun's rays. The higher the latitude, the greater the angle of incidence of sunlight and the less solar thermal energy.re is absorbed per unit area. Antarctica is located at the highest latitude on Earth. The angle of incidence of the sun is the smallest. Sunlight can only reach the surface obliquely, and the heat of oblique sunlight is the lowest.
3 95% of the Antarctic continent is covered in white ice and snow. The reflectivity of ice and snow to sunlight is 80% to 84%, leaving less than 20% to reach the ground, and that's pitiful. a small amount of heat goes a long way. Part of it is reflected in space. Antarctica's high altitude and relatively thin air make it difficult to retain heat, which is why Antarctica is extremely cold.
4 Antarctica is a continent and the North Pole is an ocean. The capacity of continents to retain heat is much lower than that of the oceans. At the same latitude, Antarctica is colder than the Arctic.
5 LThe Antarctic continent is the windiest continent. Winds blowing at speeds greater than 100 kilometers per hour are often encountered in Antarctica. Winds along the coast of Antarctica are strongest, with an average speed of 17 to 18 meters per second, while winds along the coast of East Antarctica are strongest, with speeds wind speeds of up to 40 to 50 meters per second. Storms increase heat loss.