Antarctica Expedition Secrets - Unexplored World of Ice Documentary ᴴᴰ
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 Published On Feb 5, 2020

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CONTENT: Is Earth's southernmost continent. It contains the geographic South Pole and is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. At 14,200,000 square kilometres (5,500,000 square miles), it is the fifth-largest continent and nearly twice the size of Australia. At 0.00008 people per square kilometre, it is by far the least densely populated continent. About 98% of Antarctica is covered by ice that averages 1.9 km (1.2 mi; 6,200 ft) in thickness,[5] which extends to all but the northernmost reaches of the Antarctic Peninsula.Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents.[6] Most of Antarctica is a polar desert, with annual precipitation of 200 mm (7.9 in) along the coast and far less inland; there has been no rain there for almost 2 million years, yet 80% of the world freshwater reserves are stored there.[7] The temperature in Antarctica has reached −89.2 °C (−128.6 °F) (or even −94.7 °C (−135.8 °F) as measured from space[8]), though the average for the third quarter (the coldest part of the year) is −63 °C (−81 °F). Anywhere from 1,000 to 5,000 people reside throughout the year at research stations scattered across the continent. Organisms native to Antarctica include many types of algae, bacteria, fungi, plants, protista, and certain animals, such as mites, nematodes, penguins, seals and tardigrades. Vegetation, where it occurs, is tundra.



The Dry Valleys in Antarctica are the driest places on earth. With such low humidity and moisture on this portion of the continent, snow and ice cannot even accumulate, which leaves the valleys as just a dusty expanse of dirt. Antarctica is, on average, the windiest place on earth. Scientists exploring this southerly landmass have reported wind speeds that have reached up to 200 miles per hour. The Antarctic Ice Sheet is the single biggest mass of ice in the world and can sometimes be up to four miles thick. The continent as a whole contains about 90 percent of the planet's freshwater ice and around 70 percent of the total fresh water on earth ! Scientists claim that if the West Antarctic Ice Sheet were to melt, it would raise global sea levels by about 16 feet. The Ross Ice Shelf - a floating tongue of ice that extends off the continent's main landmass - encompasses more than 510,000 square kilometres and is the largest ice shelf that has ever been discovered.


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