Uyini-Arctic Circle

Ngo Nenkabazwe sihamba-Arctic Circle naseNingizimu, ngokulandelana - umugqa eNingizimu ye-Arctic zone. Eyokuqala ubhekwa umngcele we esipholile zone sezulu Arctic. Antarctic Circle ubhekwa umngcele sezulu Antarctic. 21-22 Juni (enhla nenkabazwe ehlobo) ilanga alishoni, futhi ngenjikalanga yasebusika (Dec 21-22) - aliphumi.

Mayelana-eksisi enyakazayo eMhlabeni lushintsha kwenzekani shift nsuku komugqa ye-Arctic Circle (umbuthano Arctic) kuze kufinyelele ngamamitha amathathu ngosuku, futhi kuze kube eziyikhulu amamitha ngonyaka. Thina kwenziwe izibalo ukuze 2015 ngonyaka. Kwatholakala ukuthi owokuqala-Arctic Circle ngeke bayeke ukuya enyakatho. Kuyo yonke le minyaka ezayo eziyisishiyagalolunye ngemva konyaka 2015 - amamitha angamakhulu amane kuya eningizimu.

Umngcele kuchazwe polar ebusuku umbuthano polar, uma ilanga iphuzu elikhanyayo, lapho umhlaba ayinakho emkhathini. Empeleni, osukwini iqala ukubonakala iphuzu elingenhla ukusitha ilanga. Ngaphezu kwalokho, isikhundla okusobala ukukhanya ngenxa okungenhla kwalungiswa izinkunga zokubona yangempela (eguqa ray emkhathini). Kule ndaba, e-Arctic Circle amanga imizuzu amahlanu eningizimu emngceleni wama ubusuku polar.

Umqondo umbuthano Arctic laqanjwa Eudoxus ka eKinidu (Umfundi kaPlato). Wayeqonda ukuhlobana-eksisi enyakazayo futhi ukukhanya iplanethi ezindaweni ezahlukene Zomhlaba, isimo sezulu exhumene ne-latitude. Eudoxus usanda kwethula lento kwencazelo "isimo" obhekene naso. Indawo ye-Arctic Circle, ngokombono wakhe, kwaba 54 degrees. Zonke izihlalo ngabo babebhekwa langakufanelekela ukuphila komuntu.

Cishe 327-m BC itilosi lokuqala, owakwazi ukuwela kwe-Arctic Circle, kwaba uPytheas sokuma. usuku Arctic ayekubona oLwandle Norwegian.

Itilosi wokuqala ngomkhumbi round South, kwaba Cook. Kwathi ngesikhathi uhambo lwakhe emhlabeni.

Arctic Circle eYurophu ligijima insimu ka Norway, Finland, iRussia neSweden. Umugqa neziphambano Russian Republic Karelia, Murmansk esifundeni, Kandalaksha Bay kanye Mezenskaya Bay e -White Sea, Nenets, Komi kanye nezinye izindawo. Ingxenye ezwekazini, esemgwaqweni enyakatho emjikelezweni ibizwa ngokuthi esifundeni elimhlophe.

Ngokuhamba iBering Strait, emgqeni uyaqhubeka e Melika. Kule ndawo, e-Arctic Circle ligijima Alaska, ezindaweni ezintathu Canada. Ngaphezu kwalokho, umugqa uyaqhubeka Baffin Island, Fox Bay, Greenland kanye Davis Strait.

North Circle eNyakatho ye-Atlantic ubabonisa Danish strait esiqhingini Grimes okuqondene Iceland, kanye Greenland noLwandle Norwegian.

South Circle kweqa eziningi izindawo Antarctica Southern Ocean. Umugqa sidlula iNhlonhlo ye-Antarctica, oLwandle Lazarev, Weddell Cosmonauts, Amundsen Gulf nolwandle Reeser Lans. Kusukela Amundsen Gulf coast line ye-Arctic Circle kweqa Commonwealth Sea, Enderby Land and Princess Elizabeth, ogwini Weqiniso, Davis Sea, Vincennes Bay oLwandle Mawson futhi Beach Knox. umugqa Landelayo yanjalo sihamba phezu kolwandle futhi ugu oluhle ahlukahlukene kuleli Wilkes Land. Budebuduze "Dumont d'Urville" (iziteshi French) uyaphuma Pacific wemboni weSouthern Ocean kusukela nezwekazi Antarctic.