What does the Arctic Circle mean?

The Arctic Circle, a geographical term, refers to the boundary between the northern frigid zone and the northern temperate zone. Its latitude value is 66°34' north latitude, which is complementary to the yellow-red angle, and most of it is the Arctic Ocean. The Arctic Circle includes Greenland, northern Europe, northern Russia, and northern Canada. There are many islands in the Arctic Circle, the largest being Greenland. Due to the severe cold, there are relatively few biological species in the Arctic Ocean. The plants are mainly lichen and moss, and there are few trees. The famous animals include polar bears, seals, whales, etc.

The Arctic Circle is a latitude circle of 66°34′ north latitude. It is the southernmost boundary where polar day and night phenomena occur in the northern hemisphere. The area north of the Arctic Circle has oblique sunlight, a small altitude angle of the sun at noon, and a long period of dark night (polar night), so it receives very little solar heat and is a northern cold zone. The Arctic Circle is the dividing line between the northern temperate zone and the northern boreal zone.

The Arctic Circle refers to an imaginary circle with a latitude value of 66°34' north latitude. It is the dividing line between the northern frigid zone and the northern temperate zone, and the intersection angle with the Yellow and Red Tropics (the latitude value of the Tropic of Cancer). More than each other. The area north of the Arctic Circle is called "Intra-Arctic." Usually, the area within the Arctic Circle is called the Arctic region, which consists of the Arctic Ocean and surrounding land. Its land part includes Greenland, the three Nordic countries, northern Russia, northern Alaska in the United States, and northern Canada. There are many islands in the Arctic Circle, the largest being Greenland. Due to the severe cold, there are very few species of life within the Arctic Circle. The plants are mainly lichens and mosses, and the animals include polar bears, seals, whales, etc.

The Arctic Circle is also the boundary where polar day and polar night phenomena begin to appear. Areas north of the Arctic Circle will experience polar day in summer and polar night in winter.

Affected by multiple periods and long-term tectonic changes, sedimentation and magmatic activity, various metal deposits (points) are dotted in the Arctic Circle and adjacent areas, including the Kiruna Iron Deposit in Sweden, Russia Norilsk nickel-copper-platinum group element deposit and Tomtur niobium polymetallic deposit, Finland's Komi chromium deposit, Greenland's Isua iron deposit and Fiskneset chromium deposit, Canada's Mary River iron deposit and The Voyce Bay nickel-copper-cobalt deposit, the Reed Dog lead-zinc deposit in the United States, and the Ford Knox gold deposit in the United States are all world-famous super-large deposits. Statistics show that in the past 10 years, the production of platinum group elements in the Arctic has accounted for more than 50% of the world's total, with gem-grade and industrial-grade diamond accounting for 26% and 28% respectively, and nickel, cobalt and chromium accounting for 22% and 28% respectively. 21% and 15%, copper, iron and lead-zinc are 8%, 7% and 18%, gold and silver are 7% and 9% respectively.

In addition, data show that Russia’s Arctic diamond, platinum group element and nickel production account for 99%, 98% and 80% of the country’s total production respectively, while chromium, manganese and gold account for 90%, 90% and 80% respectively. 90% and 40%. With the gradual warming of the climate, the expansion of land area and the intensity of mineral prospecting and exploration. The discovery and development of a large number of metal deposits will certainly greatly increase the annual output of mineral products in this region. This will inject new vitality into the development of the global economy and society. Therefore, it is expected that mineral prospecting, exploration, development and utilization have always attracted great attention from the international community.

There are the Arctic Ocean, islands, and land in the Arctic Circle, which belong to 8 countries: Russia, the United States, Canada, Denmark, Iceland, Norway, Sweden, and Finland.

The coldest place in the Arctic: The average winter temperature in the Arctic is -20 degrees Celsius, and many places are -33 degrees Celsius. The coldest place is Siberia, 2,898 kilometers away from the pole, near Omiallenzhen in the northeast, reaching -53 degrees Celsius.

The world's northernmost city: Longyearbyen, the capital of Svalbard, Norway. Longyearbyen turned out to be an American name. In 1904, Longyear came to Svalbard and bought a coal mine on the island from the Norwegians. Two years later, Americans built the first house near the coal mine, and the coal mine managers named the place "Longyearbyen" after their boss. This place, which had only one house at that time, has now developed into a small town with a population of 1,200 people. The city has a post office, schools, banks, hospitals, newspapers, restaurants, shopping malls, museums, etc. It is hidden deep in the Arctic Circle, hiding at 78° north latitude. At this latitude of the Earth, there is almost no land left. This is a cold place where the sun cannot be seen for four months every year, ice and snow cover the earth, and darkness accompanies every hour. During the other four months, the sun barely sets.