Antarctic climate characteristics

The Antarctic climate is characterized by severe cold, dryness and strong winds.

First, an overview of the weather.

The climate in Antarctica is extremely cold, and it is covered with ice and snow all year round, belonging to a cold ice field climate. Antarctica is usually colder than the North Pole at the same latitude and is the coldest region in the world. The Antarctic continent is the driest continent on earth, with an average annual precipitation of 30~50 mm. The deeper the continent, the less the precipitation, which is less than 3 mm near the South Pole.

Two. Introduction to antarctica

Antarctica, the continent around Antarctica, is one of the seven continents of the earth. Located at the southernmost tip of the earth, it is surrounded by Antarctic Ocean, bounded by Bellings-Jingao Sea, Ross Sea, amundsen sea and Weddell Sea. Antarctica is composed of continent, ice and islands on the edge of continent, with a total area of 654.38+04.245 million square kilometers. The whole territory is plateau, with an average elevation of 2350 meters, which is the continent with the highest average elevation in the world.

Third, the terrain features

The mountains across the Antarctic divide the Antarctic continent into two parts. East Antarctica, with a large area, is an ancient shield and quasi-plain, which runs across the Antarctic mountains and stretches on the edge of the shield. West Antarctica is a small fold belt composed of mountains, plateaus and basins. There is a subsidence zone between east and west, extending from Ross Sea to Weddell Sea.

Four. Biological resources

Due to the harsh natural environment, Antarctica is the continent with the least biological resources in the world, especially in the inland areas, where there is almost no natural life. However, marine biological resources are extremely rich, with a large number of algae, corals, starfish, sponges, krill and other organisms, among which krill is the main food source for many organisms in Antarctic waters.