Kudala, wonke amazwekazi ayegxile ezweni elilodwa elibizwa ngePhenea. UPangea wahlukana neminyaka engaba yizigidi ezingama-200 ezedlule, futhi izingcezu zawo zakhuphuka zawa ngaphesheya kwamapuleti e-tectonic, kodwa hhayi kuze kube phakade. Amazwekazi azophinda abuyele esikhathini esizayo esikude. Ucwaningo olusha, oluzokwethulwa ngoDisemba 8 eseshini ye-Online Poster emhlanganweni we-American Geophysical Union, uphakamisa ukuthi indawo yesikhathi esizayo ye-supercontinent ingakuthinta kakhulu ukubekezela komhlaba kanye nokuqina kwesimo sezulu. Lokhu okutholakele kubalulekile futhi ekufuneni impilo kwamanye amaplanethi.
Ucwaningo oluhanjiswe ukuze kushicilelwe kungokokuqala ukukhombisa isimo sezulu sekusasa elikude kakhulu.
Ososayensi abanasiqiniseko sokuthi i-supercontinent elandelayo izobukeka kanjani noma lapho izotholakala khona. Kungenzeka ukuthi eminyakeni eyizigidi ezingama-200, wonke amazwekazi ngaphandle kwe-Antarctica angajoyina eduze kweNorth Pole e-Supercontia. Okunye okungenzeka ukuthi "i-Aurica" ​​ibingakwakheka kuwo wonke amazwekazi ahlangana ezungeze i-equator isikhathi esiyiminyaka engaba yizigidi ezingama-250.
Indlela Amazwe A-Supercontinent Aurika (ngenhla) futhi ama-Amasia asatshalaliswa. I-Landforms yesikhathi esizayo iboniswa grey, ukuqhathanisa ngezindlela zamanje zezwekazi. Isikweletu sesithombe: indlela et al. 2020
Esifundweni esisha, abacwaningi basebenzise imodeli yesimo sezulu ye-3D Global Clasul Model ukumodela indlela yokuhlelwa komhlaba emibili kungathinta kanjani uhlelo lwesimo sezulu emhlabeni jikelele. Lolu cwaningo luholelwa yi-Michael Way, isazi semvelo e-NASA's Goddard Institute for Space Study, ingxenye ye-Columbia University's Earth Institute.
Iqembu lithole ukuthi amasya no-Aurika bathonya isimo sezulu ngendlela ehlukile ngokushintsha ukujikeleza komkhathi kanye nolwandle. Uma wonke amazwekazi ehlanganiswe ezungeze i-equator esifundeni sase-Aurica, umhlaba ungagcina ukufudumeza ngo-3 ° C.
Esikhathini se-Amasya, ukuntuleka komhlaba phakathi kwezigxobo kungaphazamisa ibhande lokuhambisa olwandle, okuthi njengamanje lifudumeza ukushisa kusuka ku-equator ngenxa yokuqongelelwa komhlaba ngenxa yokuqongelelwa komhlaba. Ngenxa yalokhu, izigxobo zizobanda futhi zimbozwe eqhweni unyaka wonke. Yonke leqhwa libonisa ukushisa emuva esikhaleni.
Nge-Amasya, "iqhwa eliningi," kuchazwa ngendlela. "Unamashidi e-Ice futhi uthola ngempumelelo impendulo ye-ice albedo ethambisa ukupholisa iplanethi."
Ngaphezu kwamazinga okushisa apholile, athi amazinga olwandle angehla ku-Amasya Scenario, amanzi amaningi azobanjiswa amashidi eqhwa, futhi izimo zeqhwa zingasho ukuthi awukho umhlaba omningi wokutshala izilimo.
Ngakolunye uhlangothi, uBea, angahle athambekele ebhishi. Emhlabeni eduze kwe-ikhwetha kuzomunca ukukhanya kwelanga okunamandla lapho, futhi bekungeke kube khona ama-calros ace cap abonisa ukushisa emkhathini womhlaba, ngakho-ke amazinga okushisa omhlaba azoba ngaphezulu.
Ngenkathi indlela iqhathanisa nogu luka-Aurica ogwini lwamabhishi eBrazil ePharadiya, "kungathola izwe lome kakhulu," uyaxwayisa. Ukuthi umhlaba omningi ulungele ezolimo kuzoncika ekusatshalalisweni kwamachibi kanye nezinhlobo zemvula ezitholayo - imininingwane engambozwanga kule ndatshana, kepha ezingase ihlolwe ngokuzayo.
Ukusatshalaliswa kweqhwa neqhwa ebusika nasehlobo e-Aurika (kwesobunxele) ne-amasya. Isikweletu sesithombe: indlela et al. 2020
Amamodeli akhombisa ukuthi cishe amaphesenti angama-60 indawo ye-Amazon ilungele amanzi awuketshezi, uma kuqhathaniswa namaphesenti angama-99,8 endawo yase-Orica - ukutholakala okungasiza ekufuneni impilo kwamanye amaplanethi. Enye yezinto eziphambili ukuthi izazi zezinkanyezi zibheka lapho zisesha imihlaba engaba yingozi ukuthi ngabe amanzi anothile angasinda emhlabeni weplanethi. Lapho bemodele la manye amazwe, bavame ukulingisa amaplanethi ambozwe ngokuphelele olwandle noma ane-topography efana nalemhlaba yanamuhla. Kodwa-ke, ucwaningo olusha lukhombisa ukuthi kubalulekile ukucubungula indawo yomhlaba lapho kuhlolisisa ukuthi amazinga okushisa awela endaweni ethi "kuyabonakala" phakathi kokuqaqa nokubilisa.
Ngenkathi kungathatha ososayensi abe yishumi leminyaka noma ngaphezulu ukunquma ukusatshalaliswa kwangempela komhlaba nolwandle kumaplanethi kwezinye izinhlelo zenkanyezi, abaphenyi banethemba lokuthola umtapo wezincwadi omkhulu we-Clacen Modeling angasiza ekulinganiseni indlela. amaplanethi. umhlaba ongomakhelwane.
UHanna Daving noJoao Duarte wase-University of Lisbon kanye neMatias Greene yeBangor University eWangor bangababhali abasebenza nabo.
Sawubona Sarah. Igolide futhi. O, yeka isimo sezulu esizobukeka ngathi lapho umhlaba usuka futhi futhi izimbotshana zasolwandle ezindala zivale futhi zivuleke ezintsha. Lokhu kufanele kuguquke ngoba ngikholwa ukuthi imimoya nemisinga yolwandle izoshintsha, kanye nezinhlaka zezwe zizothola. Ipuleti laseNyakatho Melika lisuka ngokushesha eningizimu-ntshonalanga. Ipuleti lokuqala lase-Afrika bulldozed europe, ngakho-ke kwakukhona ukuzamazama komhlaba okuningana eTurkey, eGrisi nase-Italy. Kuzoba mnandi ukubona ukuthi yiluphi uhlangothi lwe-British Isles oluya (i-Ireland livela eSouth Pacific esifundeni saseLwandle. Yebo ipuleti le-90eaislic liya ekuya eNdiya.