North Pole
The Arctic is an area near the Earth's North Pole. The North Pole is also referred to as the 'North Pole'. The Arctic covers not only the Arctic Ocean, but also Russia, Siberia, Alaska, Canada, Greenland, Iceland and Scandinavia. Like the South Pole, many countries including the Republic of Korea installed research bases in the North Pole. Arctic regions have many definitions. It is defined as the northern part of the Arctic Circle of 66 ° 33 ', which is not sunny in summer nor sunny in winter. It is also based on a line that does not exceed 10 ° C in summer, based on climate and vegetation. This criterion roughly corresponds to the tree line. Social or political, the Arctic covers the northern territories of eight nations, including Lapland, and on a scientific basis they are sub-arctic. The Arctic Circle is made up of a large ocean covered with ice and a tree-free tundra surrounding it. The Arctic falls into a cold desert covered with snow because the average annual precipitation does not exceed 100mm.