La I-Antarctica Yindawo lapho imiphumela yokuguquguquka kwesimo sezulu ibonakala ngokuqhubekayo. Yena ncibilikisa Ingenye yezinkinga ezikhathaza kakhulu leli zwekazi ezibhekene naleli zwekazi, ayigcini nje ngokusongela impilo yezilwane ezihlala kulo, kodwa futhi ibeka usongo olukhulu emiphakathini yasogwini emhlabeni jikelele ngenxa Ukukhuphuka kwamazinga olwandle. Lokhu kugqamisa ukubaluleka kokuqonda izenzakalo ezihlobene, ezifana imiphumela yokuncibilika kweqhwa e-Antarctica, kanye nethuba lokuthi i I-Antarctica izolahlekelwa yiqhwa ngo-25% ekupheleni kwekhulunyaka..
Ucwaningo lwakamuva olwenziwe abacwaningi e- I-ARC Centre of Excellence for Climate System Science uveze ukuthi imimoya in the I-East Antarctica Zingadala iziyaluyalu olwandle ezisabalele ngento eyaziwa ngokuthi U-Kelvin uqhweba, isigaba samagagasi olwandle.
I-Las U-Kelvin uqhweba Zakheka olwandle futhi, lapho zihlangabezana nesimo sezulu esingaphansi kwamanzi eNhlonhlweni Ye-Antarctic Esempumalanga, ziphusha amanzi afudumele ziye emashalofini eqhwa amakhulu ngasogwini. Lokhu kuhlobene eduze nokusheshisa kokuncibilika emkhakheni we-Western Antarctic, ngoba, eduze neshalofu lezwekazi lalesi sifunda, I-Antarctic Circumpolar Current Efudumele inikeza amanzi ashisayo njalo abhebhethekisa inkinga. Ukuze uthole umbono obanzi, kunconywa ukuthi ufunde mayelana ukuncibilika kwezinti y Icala le-Totten Glacier encibilikayo.
Umthelela we-Kelvin Waves ekuncibilikeni kweqhwa
Lapho la magagasi ehlangana ne i-topography yasolwandle, susa amanzi amaningi afudumele abheke emashalofini eqhwa, okunomthelela a ukuncibilika ngokushesha yalezi zakhiwo. Lena akuyona inkinga eyedwa, njengoba izinguquko lokushisa kwamanzi kule ndawo kungabangela imiphumela elimazayo hhayi kuphela I-Antarctica, kodwa esimweni sezulu somhlaba wonke. Yena ukuncibilika kwe-arctic Ibuye ibe nemiphumela ebalulekile, kanye ne ukunyuka kwamazinga okushisa endaweni yase-Antarctic.
I-Los izinguquko emimoyeni yasogwini kulesi sifunda kuhlobene nokushintsha kwesimo sezulu okujwayelekile, njengoba, njengoba izinga lokushisa elijwayelekile likhuphuka, imimoya yasentshonalanga ewumsuka weziphepho ezweni. I-Southern Ocean nazo ziyashisa. Lokhu kushintsha amaphethini omoya atholakala eduze kwe I-Antarctica, kube yinto ethinta futhi ama-tundra asebenza njengama-amplifiers okushintsha kwesimo sezulu.
Izilinganiso Zokukhuphuka Kwezinga Lolwandle
Ukuncibilika ku I-Antarctica Kuyinkinga yekusasa leplanethi. Izibalo zibonisa ukuthi ngonyaka ka-2100, Izinga lolwandle lingakhuphuka ngaphezu kwemitha, futhi ngonyaka ka-2500, ngaphezu kwamamitha ayi-15, uma umkhuba wamanje wokukhishwa kwegesi uqhubeka amagesi abamba ukushisa. Lesi simo ngeke sithinte i-Antarctica kuphela, kodwa sizodala uchungechunge lwezinkinga emiphakathini yasogwini emhlabeni jikelele, njengoba kuchazwe esihlokweni esithi. ukwenyuka kwezinga lokushisa e-Antarctica futhi i umthelela ongaba khona wezintaba-mlilo esifundeni.
Abacwaningi bagcizelela isidingo sokuthatha izinyathelo ezisheshayo zokunciphisa ukufudumala komhlaba. Ngokuhlehlisa ukungcola, kunethemba lokuthi imizila yesiphepho esiseningizimu ukuya enyakatho, okungase kusize ukubambezela ukuncibilika kweqhwa. I-West Antarctica. Ngaphezu kwalokho, lokhu kuzonciphisa ukufudumala kwezilwandle, kuvumela amanye amashidi amakhulu eqhwa ukuthi azinze, futhi ahlobene ngokuqondile nolwandle. I-Larsen C incibilika edala ukungazinzi esifundeni.
U-Kelvin Waves kanye Nemvelaphi Yabo
I-Las U-Kelvin uqhweba Ziyizinto zemvelo eziye zacwaningwa futhi zabhalwa phansi iminyaka engaphezu kwekhulu. La magagasi olwandle ahamba ngasogwini, athutha amanzi afudumele esuka olwandle aya ezindaweni ezipholile. Lesi simo siyinkimbinkimbi, njengoba sibandakanya izici eziningi ezihlobene ne- amandla olwandle futhi i i-atmospheric physics. I-athikili ekhuluma ngalesi simo ngokuningiliziwe yi ukwakheka kwamachibi aluhlaza e-Antarctica, kanye nomthelela .
Ngokwesibonelo, izinguquko ezingeni lokushisa lolwandle, izindlela zomoya, nomfutho womkhathi konke kunendima ebalulekile ekwakhekeni nasekusakazekeni kwamagagasi e-Kelvin. Le mimoya efudumele ivela ngakolunye uhlangothi lwe I-Antarctica, Ngaphezu kwe Amakhilomitha ayi-6000 ukusuka lapho, futhi ingaba nemiphumela esimweni sezulu sase-Antarctic. Ngaphezu kwalokho, i- qopha iqhwa lasolwandle eliphansi e-Antarctica ikhombisa ukuthi lezi zigameko zihlobana kanjani.
Ucwaningo luye lwabonisa ukuthi le mimoya ingabangela ukunyuka kwezinga lokushisa kwamanzi olwandle kuze kufike ku-1 ° C ekujuleni kwamashalofu eqhwa, imiphumela ebalulekile ukuze kube nokuzinza kwamashalofu eqhwa esifunda. Indaba ehlobene futhi ekhathazayo yile umthelela omubi wokuncibilika kweqhwa emhlabeni.
Ubudlelwano Nokuguquguquka Kwesimo Sezulu
Isixhumanisi phakathi kwe- U-Kelvin uqhweba nokushintsha kwesimo sezulu akunakuphikwa. Njengoba isintu siqhubeka nokukhipha inqwaba yamagesi abamba ukushisa, i ukufudumala kwezwe kuba sobala kakhulu. Ukusheshisa ekuncibilikeni kwe- I-Antarctica kuwukubonakaliswa okucacile kwalokhu, futhi ucwaningo lusikisela ukuthi ngaphandle kwalapho kuthathwa isinyathelo esisheshayo ukuze kunqandwe ukungcola, umbono wekusasa uba mufi. Ukuze uthole ukucabanga okubanzi, kubalulekile ukwazi I-Antarctic inethonya esimweni sezulu somhlaba.
Ngokwesibonelo, umbiko wamuva uxwayisa ngokuthi uma lesi simo esikhona manje singahlehliswa, singabona amazinga olwandle akhuphukayo angase asuse amakhulu ezigidi zabantu emakhaya abo ekupheleni kwaleli khulu leminyaka. Lolu wucingo oluvusa wonke umuntu: sidinga ukuthatha isinyathelo manje ukuze sivikele iplanethi yethu nesimo sezulu sayo. Yena ukuncibilika kweqhwa e-Antarctica Kuwuphawu lokuphuthuma kwesimo sethu samanje.
Njengoba amazinga okushisa eqhubeka ekhuphuka, kukhona futhi ingozi yokuthi amashalofu eqhwa amakhulu azohlukana ne- I-Antarctica. Lezi zehlakalo, ezifana nokuwa kweshalofu leqhwa lase-Larsen C, zibonisa indlela ukufudumala kwembulunga yonke okungaba nemiphumela edabukisayo ku-ecosystem yesifunda. Ukugoqa okungafundwa ezihlokweni ezimayelana ukuwa kweplatifomu ye-Larsen C nobuhlobo bakhe naye Ukuncibilika kwe-Antarctic Ocean, okungakhuphula ukwakheka kwamafu.
Isidingo Sesenzo
Ngenxa yazo zonke lezi zinto ezikhathazayo, ososayensi bagcizelela ukubaluleka kokuqaliswa kwezinqubomgomo ezisebenzayo zokubhekana nokuguquguquka kwesimo sezulu. Faka amafomu we ukunciphisa ukukhishwa kwekhabhoni kanye nokukhuthaza amandla avuselelekayo kuyizinyathelo ezibalulekile okufanele sizithathe ukuze siqinisekise ikusasa elisimeme. I Ama-Tundra, isibonelo, abalulekile kulo mongo..
Ukungaqiniseki ngekusasa lesimo sezulu emhlabeni kuyabonakala, kodwa akhona amasu angasiza ukunciphisa umthelela wokuguquka kwesimo sezulu emhlabeni. I-Antarctica. Ngokwesibonelo, izindlela ze i-geoengineering lokho kungasiza ukuguqula eminye yemiphumela yokufudumala kwembulunga yonke.
