Kada ka san inda Magnetic sandunan da ƙasa akwai

Shin ka san cewa yana da Earth 4 sandunan: biyu na labarin kasa da biyu Magnetic? Kuma da yanayin dogayen sanda ba ta zo daidai da halin maganaɗisu. Shin kana so ka san inda Magnetic Dogayen sanda na Duniya? A karshen karni na ashirin, bisa ga sunayen su ne: Arewa - a cikin zurfin arewacin tekun na Canada, da kuma kudu - wajen ɗari kilomita daga gefen Antarctica.

Kuma inda suke Magnetic sandunan da ƙasa yanzu? su kullum motsi. Alal misali, arewa a 1831 (a lokacin da aka bu), shi ne a 70 digiri. w. a Canada. Bayan shekaru 70 na iyakacin duniya mai bincike R. Amundsen same shi riga at 50 km zuwa arewa. Masana kimiyya suke da sha'awar a cikin wannan, da kuma fara kula da. Sai ya juya daga iyakacin duniya "tafiya" tare da kara gudu. ta gudu a farkon ya kananan, amma ya karu zuwa 40 km / shekara a 'yan shekarun nan. A wannan kudi, da 2050, da arewa Magnetic iyakacin duniya "rajistar" a Rasha. Kuma shi ba za su kamar kyau hotuna na arewacin fitilu, wanda za a gani a kusan duk na Siberia, amma kuma matsaloli a cikin yin amfani da kamfas. fiddawa kuma kara sarari kuma haskoki, t. Don. A iyakacin duniya a kusa da Duniya ta Magnetic filin ne yawa fiye da karami a ekweita. Ma'aunai ya nuna cewa a cikin 150 shekaru Magnetic filin na Duniya ya kasa da kashi 10%. Kuma shi ne mai matukar tasiri wajen kariya daga duk abubuwa masu rai da wuya da kuma m hasken rana radiation. American 'yan saman jannati wanda ya tashi zuwa da watã, ya fito daga murfin da Magnetic filin na Duniya da kuma samu wani m nau'i na radiation cuta. Kuma kamar yadda ba su gani ba, da watã, amma ganin inda Magnetic sandunan na Duniya, iya ba.

Land a kan Antarctica

Antarctica - wani ɓangare na Duniya ta kusa da Kudu iyakacin duniya. Yana da aka kira "Anti-Arctic" ko Ant-Arctic, kamar yadda wani antagonist na Arctic. The sunan karshen da aka samu daga Girkanci Arktos - Dipper. Tun zamanin d Helenawa kira da ƙungiyar taurari na Ursa Ƙananan tare da iyakacin duniya Star, sananne ga dukan matafiya.

Antarctica ne nahiyar Antarctica, ta m sassa na Atlantic, Pacific da kuma Indian tekuna da tekuna na Bellingshausen, Ross, Commonwealth, Weddell da Amundsen da sauransu. Duk da Antarctic marine mai suna Southern Ocean. A cikin Antarctic, kuma ya hada da tsibirin na Kudu Shetland, ta Kudu George, ta Kudu Kirkwall, ta Kudu Sandwich da yawa wasu. . Saboda haka, Antarctica daukan kusa 50-60 minti kudu da daidaici.

Antarctica - mafi, mafi, mafi ...

Antarctica - most kuma sarrafa giza hamada - da ruwan sama shi ne kasa da 100 mm kowace shekara: daga 40-50 mm a cibiyar zuwa 600 mm a arewa da Antarctic Larabawa. A mafi sani a cikin kunkuntar da'irori na Dry kwaruruka. Ruwan sama ba gani shekaru miliyan biyu da. Dry kwaruruka maƙwabcinsa - da Atacama Desert, inda shi ba ruwa a total na shekaru 400. A tabkuna na wannan kwarin - mafi m, a duniya. Tekun idan aka kwatanta da su - kusan sabo.

Antarctica - matsananci sauyin yanayi, da m zazzabi rubuta a duniya a Soviet Antarctic tashar "Vostok" 21 Yuli 1983 - debe 89,6 ° C.

Antarctica - wani wuri na karfi iska. Kõfatansu a kan duwatsu daukaka ne katabatic iskõki. The iska a lamba tare da glaciers a tsawon 1000 zuwa 4500 m cools, compacted kuma ya fara ha ~ aka, daga ƙarƙashinsu zuwa ga tudu, wani lokacin kai gudu daga 320 km / h.

Antarctica - da garin kankara wurare a duniya. Kawai 0.2-0.3% na surface ba a rufe da kankara - a Transantarctic duwãtsu da kuma yammacin nahiyar, kazalika da ~ ar teku ko mutum crests kuma kololuwa (nunataks).

Summer kudu na Arctic Circle, wadannan yankunan suna kona karfi, sa'an nan heats iska a sama da su. Alal misali, a Dry Valley of Victoria Land in Disamba 1961 shi ne + 23,9 ° C

Yanzu ka san inda ta Duniya ta Magnetic sandunan ne.