Besilokhu sazi iplanethi yethu ngokuthi "iplanethi eluhlaza okwesibhakabhaka," futhi umthamo wamanzi eMhlabeni namuhla uhluke kakhulu kulokho owawuyikho eminyakeni eyizigidi edlule. Njengamanje, izilwandle zeplanethi yethu zimboza ngaphezu kuka-70% wobuso bayo , futhi kunezinhlanu sezizonke, ezintathu ezinkulu kunazo zonke yi-Atlantic, Indian, kanye nePacific. Kodwa-ke, namuhla ngifuna ukukutshela okwengeziwe ngazo ukuze, ngaphezu kokufunda ulwazi olujwayelekile, ukwazi ukuqonda ukulandelana kwazo ngobukhulu.
Kukhona ulwandle olulodwa kuphela
Isithombe seWanderspots
Nakuba kulesi sihloko ngifuna ukukunikeza imininingwane ejwayelekile mayelana nezilwandle ezinhlanu ezikhona emhlabeni wethu , iqiniso liwukuthi zonke ezinhlanu zingaphakathi kolwandle olufanayo , kodwa kuye ngendawo ezikuyo, zithola igama elihlukile ukuze zikwazi ukuzithola ngokunembile.
Ngenkathi kukhona ulwandle olulodwa kuphela lomhlaba wonke, amanzi amaningi ahlanganisa amaphesenti angama-70 omhlaba, kepha ahlukaniswe ngokwezindawo ezihlukene. Imingcele phakathi kwalezi zifunda iguquke ngokuhamba kwesikhathi ngenxa yezizathu ezahlukahlukene zomlando, amasiko, ezendawo nezesayensi.
Ngokomlando, kwakukhona izilwandle ezine: i-Atlantic, Pacific, Indian, ne-Arctic. Kodwa-ke, amazwe amaningi - kufaka ne-United States - manje nawo abona iSouth Ocean (Antarctica) njengolwandle lwesihlanu. Kodwa iPacific, i-Atlantic, kanye nezilwandle zaseNdiya zaziwa njengezilwandle ezintathu ezinkulu zeplanethi ngenxa yokwandiswa kwazo okukhulu.
Ulwandle lwaseNingizimu luwulwandle olusha , kodwa akuwona wonke amazwe avumelana ngemingcele yalo ehlongozwayo (lusukela ogwini lwase-Antarctica). Kodwa-ke, okwamanje luwulwandle lwesihlanu futhi kumele lufakwe ohlwini. Ngezansi, ngizokunikeza umbono jikelele wolwandle ngalunye kwezinhlanu ezikhona ngaphakathi kolwandle olulodwa, olukhulu.
i-Pacific Ocean
Isandiso: amakhilomitha-skwele ayi-166.240.992,00.
Ulwandle olukhulu kunawo wonke emhlabeni wethu luthatha ingxenye yesithathu yomhlaba futhi lusuka e-Arctic enyakatho luye e-Antarctica eningizimu, lubamba iziqhingi ezingaphezu kwezi-25.000, ezilingana ngaphezu kwazo zonke ezinye izilwandle ezihlanganisiwe. I-Pacific Ocean ithatha i-30% yoMhlaba futhi itholakala phakathi kwamazwe aseMelika kuya eMpumalanga ye-Pacific Ocean basin namazwekazi ase-Asia nase-Australia kuya eNtshonalanga. I-equator ihlukanisa iNorth Pacific Ocean kanye ne-South Pacific Ocean.
Leli gama livela egameni elithi "ukuthula ," futhi laqanjwa ngegama lomhloli wamazwe wasePutukezi uFerdinand Magellan, owabiza la manzi ngokuthi "uLwandlekazi iPacific" ngo-1521, okusho ulwandle olunokuthula. Amanzi alo aye awela imikhumbi eminingi kuwo wonke umlando.
I-Atlantic Ocean
Isandiso: amakhilomitha-skwele ayi-82.558.000,00.
Eyesibili ngokunwebeka isuka eNyakatho ye-Arctic Ocean iye Olwandle lwaseNingizimu Antarctic, ithatha u-20% wengqikithi yomhlaba. Ngaphezu kwalokho, futhi kwaziwa njengolwandle oluncane kunakho konke, njengoba lwakha eminyakeni eyizigidi ezingama-200 eyedlule lapho izwekazi elikhulu iPangea lihlukana phakathi.
I-equator ihlukanisa uLwandlekazi i-Atlantic Ocean lube yiNyakatho ye-Atlantic Ocean kanye neNingizimu ye-Atlantic Ocean futhi iphakathi kweMelika kanye namazwekazi aseYurophu kanye neMpumalanga Afrika.
Kuneziqhingi eziningi oLwandle i-Atlantic, phakathi kwezaziwa kakhulu yilezi: I-Bahamas, i-Canary Islands (Spain), i-Azores (Portugal), i-Cape Verde Islands, i-Greenland, okungezona kuphela iziqhingi ezinkulu e-Atlantic Ocean, nasemhlabeni.
Igama elithi 'Atlantic' livela ezinganekwaneni zamaGreki futhi lisho 'uLwandle lwe-Atlas'. U-Atlas wayengumTitan okwakumelwe ame emaphethelweni omhlaba futhi athwale amazulu (izimbulunga zasezulwini) emahlombe akhe njengesijeziso esabekwa uZeus ngoba u-Atlas wayelwe nonkulunkulu bama-Olimpiki ukuze athole ukulawula isibhakabhaka.
Indian Ocean
Isandiso: amakhilomitha-skwele ayi-75.427.000,00.
Ukumboza cishe okungaphansi kokungaphansi kwama-20% womhlaba, i-Indian Ocean inesibopho sokugeza ogwini lwaseMpumalanga Ephakathi, eNingizimu ye-Asia, e-Australia, eMpumalanga Afrika naseNingizimu-mpumalanga ye-Asia.
Kuneziqhingi eziningi e-Indian Ocean; phakathi kwezidumile kakhulu yiMauritius, Réunion, Seychelles, Madagascar, Comoros (Spain), Maldives (Portugal), kanye neSri Lanka, eyayaziwa ngokuthi iCeylon ngaphambili. Leli gama livela endaweni yalo ezungeze izwekazi laseNdiya.
I-Antartic Ocean
Isandiso: amakhilomitha-skwele ayi-20.327.000,00.
Ulwandle olwedlule ekugcineni yi-Antarctic Ocean, ezungeza ngokuphelele i-Antarctica, izungeza umhlaba ngokuphelele, njengoba kwenza i-Arctic Ocean. Lolu lwandle lwaziwa nangokuthi iSouth Ocean.
Ukwakheka kolwandle kufaka ishelufu lezwekazi okungenani elingamakhilomitha angama-260 ububanzi elifinyelela ububanzi balo obungamakhilomitha angama-2.600 XNUMX endaweni eseduze nolwandle i-Weddell neRoss.
I-Arctic Ocean
Isandiso: amakhilomitha-skwele ayi-13.986.000,00.
Okokugcina, sinoLwandle i-Arctic, olubhekele ukuzungeza iNorth Pole, ukusingatha inqwaba yeqhwa unyaka wonke. Lokhu kutholakala enyakatho yezwekazi lethu, e-Asia naseMelika. I-Arctic Ocean incane kunazo zonke izilwandle kepha inezilwandle ezingaziwa kangako ngenxa yesimo sezulu esibi kanye neqhwa lonyaka wonke elimboze izilwandle.
Cishe ivaliwe, i-Arctic Ocean inqamula eGreenland, eCanada, e-Alaska, eRussia naseNorway. IBering Strait ixhuma olwandle iPacific kanti iGreenland Sea iyisixhumanisi esiyinhloko soLwandlekazi i-Atlantic.
Iqhwa lase-Arctic Ocean lincipha ngo-8% njalo eminyakeni eyishumi. Sonke kufanele sazi ukuthi kwenzekani ngokushintsha kwesimo sezulu futhi sivikele iplanethi yethu.