Imisinga kwezilwandle - tenhlangano ukuphila

Yalta beseyama ebhishi, zibhukuda emanzini Black Sea, kunzima ukucabanga ukuthi izinhlayiya emanzini uqobo kanye wageza ogwini Greenland noma i-Antarctica. Kodwa akukho lutho kungenzeki, ngoba ulwandle (nazo zonke amatheku nezilwandle) kuyinto wonke enobunye. Ngezinye izikhathi ngempela fast, ngezinye izikhathi kancane, imisinga ezweni ocean ukuxhuma emakhoneni akude kakhulu ke.

Ukujwayeleka nabo kwaba isikhathi eside kakhulu. YaseSpain Ponce de Leon (ngo-1513) waya ulwandle ukuthola "isiqhingi ojabulayo '. Lo mkhumbi esesifundazweni Florida jet ukugeleza, okuyinto sasinamandla kangangokuthi sailboats ayikwazanga okubhekana nayo. Ngo ukugeleza North Equatorial yamanje Columbus ngomkhumbi Melika. Lapho ngibuyela ekhaya, wathi "amanzi ukuhambisa kanye esibhakabhakeni isiqondiso entshonalanga." abahwebi American, amatilosi ezwa khona kwe-Gulf Stream ekhulwini le-18.

Imisinga kwezilwandle, noma kunalokho isivinini sabo futhi isiqondiso, iqale kunqunywa drift imikhumbi baqoqene emzileni. imikhumbi izinsalela yaphihlizeka, futhi kwasiza ekunqumeni nesiqondiso sabo. izinto okungahleliwe sintanta kolwandle, ke kwakunganele, ngakho amatilosi aqala aphonse amabhodlela olwandle corked, okuyinto wafaka iposikhadi. Owutholile ka "indondo" waveza endaweni lapho athola ibhodlela, futhi uyalulama ikhadi eposini. Le miyalezo abizwa ngokuthi "ikheli ibhodlela-imeyli." Kamuva, amabhodlela kwathathelwa indawo izimvilophu plastic amanzi.

Iqhaza main kwetinhlavu ebusweni imisinga ukudlala emoyeni. North enkabazwe wamanje (e -Atlantic) ushayela amanzi abe uLwandle LwaseCaribbean noLwandle, kusuka lapho kugeleza eStraits of Florida futhi kuphakamisa Gulf Stream. Esikhathini Pacific, le Kuroshio kuvela.

I efudumele Gulf Stream ifinyelela osogwini olusenyakatho-European futhi agelezela oLwandle i-Arctic kanye Sea uBarents, kusukela lapho ukubuyiselwa babe abandayo Greenland yamanje. Emgwaqweni kwe-Gulf Stream ulahlekelwa amanzi. Lokhu yakha amanzi wamanje isiyingi eNyakatho ye-Atlantic.

Kufanele ngaso sonke isikhathi kumelwe lithathwe njengoba linjalo igama elithi "efudumele" noma "abandayo" ngoba. Amagama lawa notshwala ezephula latitudinal lokushisa ukusatshalaliswa olwandle lapho amanzi ukubanda noma kunakwezinye amanzi ezizungezile.

Kwaphela isikhathi eside kunenkolelo yokuthi i imisinga enamandla kwezilwandle, njenge Gulf Stream futhi Kuroshio yamanje, eligeleza kuhle komfula ngesikhathi ulwandle. Ziyakwazi eqinisweni ezahlukene kusukela ezungeze amanzi usawoti, izinga lokushisa umbala, kodwa abawubonanga ukusakaza okuqhubekayo. Gulf Stream, isibonelo, ihlukaniswe ukusakaza ehlukile, ezinye zazo baphambukile, kuse ecaleni futhi zonke ke ehlukanisiwe ukugeleza main.

Akunjalo kudala yabe seyaziwa mayelana nokuba khona kwamakamu wonke isimiso imisinga phansi. Basuke kwakhiwa ngenxa ukwehlisa phansi izilwandle sogu lolwandle amanzi Antarctic. Ngakho impahla sedimentary kokuba lidluliselwe futhi eyinqaba ukusakaza unidirectional, afane namagagasi ogwini lolwandle.

Imisinga kwezilwandle - lokhu conveyers ukushisa nokubanda, inhlanzi izibungu, plankton futhi indlela kulesi siphepho. Very interesting frontal zone olwandle. Ukuxuba yamanzi okushisa ahlukene kwenzeka ngokushesha ngempela.

Currents zidlala indima ebalulekile empilweni ulwandle. Sinenkosi nomthelela izinhlanzi ukusatshalaliswa, isimo sezulu kanye sezulu.

Kuze kube yimanje, ososayensi baseBrithani ihlanganiswe ibalazwe inembe kakhulu kunazo zonke olwandle emhlabeni. Yaba ngesisekelo GOCE satellite kokuma. Leli khadi iklanyelwe ukukusiza sezulu ukuthuthukisa ikhompyutha amamodeli we isimo eplanethini yethu.