Yenza imephu yokuhlangana yokunyuka kwenqanaba lolwandle

Yile ndlela ukunyuka kwamanqanaba olwandle kuya kuyichaphazela ngayo iMelika

Umfanekiso - Ukuqhubela phambili kwezeNzululwazi

Ngokuqinisekileyo uvile okanye wafunda izihlandlo ezininzi ukuba ngonyaka wama-2100 umphakamo wolwandle unokunyuka ukusuka kwi-3 ukuya kwi-4 yeemitha, nangaphezulu, kodwa ngaba uyazi ukuba lo mkhukula ubuya kuzichaphazela njani iindawo ezahlukeneyo zehlabathi? Ukuza kuthi ga ngoku, ngokuqinisekileyo, unokuthelekelela kuphela; nangona kunjalo, unanamhla singasebenzisa imephu esebenzisanayo ukuze sibe nombono ocacileyo nomfutshane ngakumbi ukuba uya kuba njani umhlaba kwiminyaka embalwa.

Kwaye kungekhona kuphela, kodwa Siya kukwazi kwakhona ukwazi ukuba yeyiphi indawo yomkhenkce ochaphazela amanxweme ezona zixeko zibalulekileyo. zehlabathi.

Izazinzulu kwiJet Propulsion Laboratory yeNASA ziye zaphuhlisa a isixhobo sokuqikelela esiqikelela ukuba ukunyibilika komkhenkce waseGreenland kunye ne-Antarctica kuya kuchaphazela ngayo izixeko ezingama-293 ezizizibuko kwihlabathi liphela.. Ukwenza oku, basebenzise "imephu ye-gradient footprint" okanye indlela ye-GFM, ngaloo ndlela befumana iinyawo ezinezidanga kwindawo nganye. Ukutshintsha kombala kubonisa ukunyuka komphakamo wolwandle okunokuthi kuqikelelwe kwindawo ethile yaseGreenland nase-Antarctica.

Yiyo nyibilika imephu Inika umdla kakhulu, kuba yenziwa kuthathelwa ingqalelo ukuphazamiseka kwamandla omxhuzulane kunye nokujikeleza koMhlaba, kunye nefuthe leendawo zeenkqubo zokuhambisa amanzi kwisixeko ngasinye. Ngoko ke, sinokuthi ithembeke kakhulu.

Imephu esebenzayo yokunyibilika

Umfanekiso-umfanekiso

Ngokwemephu, sinokubona ukuba ukunyibilika kwe-Antarctica kuya kuchaphazela Izixeko zaseLatin America; Umkhenkce kwintshona yeGreenland uya kuphakamisa amaqondo olwandle Barcelona y Gilbhraltha; iindawo ezisemantla nasempuma yeGreenland ziya kuchaphazela ENew York kwaye ukunyibilika komntla-ntshona weGreenland kuya kunyusa umgangatho wolwandle Londres, phakathi kwabanye.

Ukufumana ngakumbi, yenza cofa apha.


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