Why Is Antarctica Significantly Colder Than The North Pole?

Why Is Antarctica Significantly Colder Than The North Pole?

The North Pole And Antarctica Are The Coldest Places On Earth; However, For Some Reason, One Of The Earth’s Poles Is Much Colder Than The Other.

Both the North Pole and the South Pole are cold; Because their position above and below the planet means that direct sunlight does not reach them. In both places, the sun is always close to the horizon, even in the middle of summer. The sun is so low on the horizon that it does not rise for several months during the winter.

In addition, the white ice and snow surfaces at the poles are highly reflective; Therefore, most of the solar energy that reaches them goes back into space and keeps the air above the characters relatively calm. Although these factors cause both poles to be cold, Antarctica is more complex than the North Pole.

The average annual temperature in the Arctic is -40 degrees Celsius in winter and zero degrees Celsius in summer. In contrast, Antarctica has a much lower temperature, with an average annual temperature of -60 degrees Celsius in winter and -28.2 degrees Celsius in summer.

The Arctic is compared to Antarctica.

“The North Pole is the ocean, and the South Pole is the continent,” Robin Bell, a scientist at the Lamont-Doherty Earth Observatory in New York, told the LiveScience website. The main reason the North Pole is colder than the South Pole lies in the significant difference between them. The North is an ocean surrounded by land, But the Antarctic is the land that the ocean covers. Water cools and heats more slowly than on land, which leads to lower extreme temperatures.

Even when the Arctic Ocean is covered in ice, the relatively warm temperature of its waters has a moderating effect on the climate there, helping the North to stay more generous than the Antarctic. In addition, while the Antarctic is at sea level, the Antarctic is the highest continent, with an average altitude of about 2300 meters. The higher the size, the colder the temperature.

Which pole has more ice?

Earth poles

Antarctica is the continent, While the North Pole is in the ocean.

In both the Arctic and the Antarctic, the ice cover changes throughout the year, spreading in long, dark winters and melting in warmer summers. Most of the difference in ice cover in the North and South Poles is due to sea ice, which floats on the ocean and grows and melts.

Since the Arctic is almost entirely landlocked, the sea ice that forms there is not as mobile as sea ice in the Antarctic. Thus, ice floes on the sea in the North are more likely to converge and usually form 2 to 3 meters thick ice. At the same time, the thickness of sea ice in the south reaches 1 to 2 meters.

On average, the minimum sea ice area in the North is about 6.5 million square kilometers, and the maximum extent is 15.6 million square kilometers. In contrast, the average Antarctic ice sheet covers a minimum of ​​3.1 million square kilometers and 18.8 million square kilometers. However, there is no doubt that Antarctic ice is generally more prominent than the Arctic. It is because Antarctica has land ice in addition to sea ice.

The ice sheet in the Antarctic is 4.8 km thick and covers about 13.7 million km, which is the size of the total area of ​​the United States and Mexico. The Antarctic contains about 90 percent of the Earth’s natural ice.

Gentoo penguins

Its Two gentian penguins (Pygoscelis Papua) are on Peterman Island near the Lemir Canal, Graham Land District, Antarctic Peninsula.

Studies of the amount of ice at the poles have shown that the thickness and extent of sea ice in the Arctic summer have dropped dramatically over the past 30 years. ” Cecilia Bates, a polar climate scientist at the University of Washington in Seattle,” says

Arctic and Greenland ice sheets are rapidly declining due to global warming. Decreased sea ice levels in the North will cause more warming and boost the heat, which will cause the ice to disappear. In contrast, declining sea ice around the Antarctic and the disappearance of glacial ice on land in the Antarctic have had ups and downs over the past 40 years. Antarctic climate dynamics are more complex; Because air and ocean flow are significant factors in it.