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Antarctica
oT: t[STwEBLyfBAiWikipediajx Source: material may be challenged Wikipedia encyclopedia (Wikipedia) x
iA p : Antarctica jnuB Antarctica (Antarctica, in English: Antarctica) will be located south of the continent most in the world. _B Which contains the South Pole.
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[ W ] Tv Summary continent
14SL[gAZA I[XgA2AnSn8.9%B Area of 1 million square kilometers and 25,000 during the six continents, the continent after Australia reduced the second, the total land area of the Earth, which accounts for 8.9 percent. CA fRnIB Is surrounded by the sea, Antarctica, in the area by the mountains across Antarctica is divided in extreme southwest and extreme southeast. AWAxzB Features of Antarctica, the high average elevation, elevation and other continents is a different distribution. W2,200mAZB The average altitude is 2,200 m, the highest in six continents. 2AWA (960m) 2{lB Two largest Asian continent (960m) more than two times the value. OAx1000m7B Except Antarctica, the altitude of 1000m the following areas account for more than 7 percent. nI[XgA (97.8%) AnAWA (70.7%) 7B Lowland Australian continent most often (97.8%), of course, a high proportion of high-altitude continental Asia (70.7%), even more than 7 percent. 14.2%B But in Antarctica is 14.2 percent.
NCAXEi XC /EFjB Cold climate throughout the year is quite a world of snow and ice almost (frost climate / EF). Sy98%XB 98% is covered all over with ice. CACA~B As the temperature drops to less supply of steam, almost no precipitation. CAEB Except for coastal areas, say the interior of the continent and desert the world's largest.
AnAB Therefore, except for plants and animals living in coastal areas are not inhabited almost only. yM A AUV A d A n A AAB Penguins, seals, Moss, kind lichen, and algae, plants and animals that inhabit only can withstand the cold. jxliZBB The only continent without a permanent residence that once human history.
1959N12AeLAynB 12 The Antarctic Treaty of 1959, adopted and signed by the countries, and is frozen to claim sovereignty over the country, the land and do not belong to any country. gbvxhC.aqB Top-level domain is. Aq has been assigned. An@~B Antarctica is the sleeping in a lot of resources, mining for ecosystem protection are prohibited.
enwnuA4,000lnVsB Base was established for scientific observations throughout the continent, is now doing about 4,000 astronomical observation and the global environment and people. {h[n2,503mXRA@oB Japan's base in 2,503 m at Dome Fuji dug the ice core. XRA~XACB Ice core, which is solidified as the ice and snow in the past, which includes the air at the time. CmB Weather conditions and can learn from the past to study this. [gwdnXB Antarctica ground by the weight of several thousand meters thick layer of snow that will gradually sink.
{LAtcAO@oKviO{KvjB The land who has Japanese nationality, in accordance with the Environmental Protocol to the Convention pertaining Antarctica, it is necessary you haveMase a report to the Ministry under the Antarctic Environmental Protection Act in advance (we have obtained the permission of foreign governments also required). AcA[AcsAss\B Therefore, Antarctic trips and excursions, for group tours, travel agency to apply for acting. l\B Ministry of the Environment to apply in individual cases. ACsAnXAAAoAB Even if a trip to the country that borders the Southern Ocean, Antarctic tourism even if the change in the field, after returning home, there are calls from the Ministry of the Environment, face penalties.
[ W ] Tj History of discovery
MVAmlnmA AXgeXKjJB Among intellectuals in the era of Ancient Greece is already known that the Earth is a sphere, had guessed the existence of the continent of fictional accounts of Aristotle and most of the southern hemisphere of Terra Australis.
RAKjJA[bpn}`B Of course, Terra Australis, but there is no continent, the continent through the Middle Ages, this hypothetical will continue to draw the map of Europe. 18IWF[YENbN2qCqCKjAB Cook 18th century James is the presence of two Megalania that sailed across the Antarctic cruise was denied once.
[ W ] C Climate
nB Antarctica is the coldest place on earth. kCWB This is due to the high altitude and continental climate of the Arctic and Antarctic differences. 1983N 721AVA{Xg[NnAnC-89.2L^B 1983 July 21 Sun, Talk at the base of Russia's boss, is the lowest temperature was observed on Earth is -89.2 recorded. hCACXZ_11B The melting point than 11 lower dry ice. OqANCA515zA~−90B As mentioned above, year-round climate is cold, even in the summer from 5 to 15 , not over the winter for those of us up to -90 . C~B Little less rainfall to supply water vapor. _N~10cm[1] B The South Pole is the average annual rainfall is 10cm [1].
AXOSA[NB The incident UV light in the ice and snow for almost all reflected that in the Antarctic sun can cause serious problems such as the eyes and snow-tanned snow.
WACB East Antarctica is higher than the West Antarctic altitude, low temperatures. CGfRfAB The climate is divided by the enemy Transantarctic Mountains, the center is dry continent. A~CA~XcXB However, by the low precipitation temperatures are lower, as snow tends to stay longer glaciers.
ALX~C~B The periphery of the continent, strong katabatic wind blows from the cold stored in the ice large. ArIB In contrast, the center is relatively relaxing style. A nX24zB During the summer, the earth's axis tilt phenomenon that happens to 24 midnight sun and the sunManai hours.
CAxA AnlKnB And cold climate, the Midnight Sun by high latitude, the polar night, to human life than in other regions is not well suited. AzI[@B Also observed the phenomenon of the Aurora solar wind.
[ W ] l Population
ZB Who settled in the Antarctic is absent. ALZAsIB Once and sometimes several countriesRikonda residents claimed that they have ended in failure. AwInuB However, observations that place the base for scientific research in several countries. ( nQ) n]lA~1000l5000lxB (However see a list of stations in Antarctica) people working in these Antarctic base in winter 1000 and summer 5000 people are expected to be around people.
[ W ] nwIj geological history of Antarctica
AShiB Antarctica is that we have divided the former Gondwana. WIAtJ A AJ A Ch AI[XgAA IAtJAChA5000NOAJAI[XgASB Jurassic to the continent of Africa now, the Americas south, continental Asia, India was a land bridge to mainland Australia, and Africa into the Cretaceous period, the division of the Indian subcontinent, also around 5000 million years ago South America was completely isolated continent and the division of the Australian continent. gAugCAAgB Until then had been so warm current flowing along the other continent, had remained a mild climate, after moving in the same position they are currently known as cold as the Antarctic circumpolar current around the Antarctic isolation results birth, and restricted the water current. }3000NOXB This rapid cooling to around 3000 million years ago was similar to the current ice continent. AOOA\B To be called this name because of the movement through the Antarctic continent, and was previously outside the Antarctic, the future could be away from the Antarctic Circle. oACWAsB Whether to join the continent Amasia that is said to occur in the future is unknown.
[ W ] Animals that inhabit the Antarctic
[ W ] A See also
- WL List of Antarctic-related articles
- List of islands near the Antarctic
- X Ice Age
- j History of Antarctica
- ` Lands
- KjJ Terra Australis
- Nobu Shirase
- R[ch Coats Land
- n Geography of Antarctica
- n@ Law on the Protection of the Environment in Antarctica
[ W ] Ql References
- ^ " Weather in the Antarctic ". British Antarctic Survey.. 2006-02-09 {B ^ "Weather in the Antarctic". .. 2006-02-09 view British Antarctic Survey.
[ W ] ON References
- uAntarcticav - Encyclopedia of Earthuvipj B "Antarctica" - Encyclopedia of Earth in "Antarctica" for items (in English).
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 | u vEnAB This "Antarctica" is the item over to write a geography related to the world. LME i P:n / PJE jB Who are seeking cooperation with otherSaru Categories correcting this article (P: Geography / travel PJ world). |
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