Kubonakala sengathi imbobo esendleleni ye-ozone isiqala ukuvalwa

Ngaphambi kokuthi aqale, kufanele akhulume ngocwaningo olusanda kwethulwa ngumphathi othile kahulumeni othembele kuhulumeni wase-United States nokuthi uthini ngalo. umgodi oletha ungqimba lwe-ozone ngeplanethi yethu, ngikutshele ukuthi ibingavaliwe ngokuphelele noma ingavalwa esikhathini esifushane, kepha kunalokho, ngokuphambene nalokho okungabonakala ifinyelele ekuphansi kwayo ngaso sonke isikhathi.

Ngemuva kwalesi sethulo esincane, kudingeka kakhulu ukwazi ngokuqinisekile ukuthi sikhuluma ngani futhi ikakhulukazi ini Kude kube yisikhathi sokuqala ukungakhathazeki ngesimo songqimba lwe-ozone ehlanganisa uMhlaba futhi lokho kudingekile ukuze siphile. Iqiniso wukuthi, njengoba ososayensi abaphethe lolu cwaningo besiqinisekisile, kubukeka sengathi sekuqala ukuvalwa, yize kusesekuseni kakhulu ukuthi bangagubha lutho.

Ngo-Okthoba odlule imbobo esendleleni ye-ozone yafinyelela ezingeni eliphansi ngokomlando

Ucwaningo esibhekise kulo yilolo olusanda kwethulwa ngokuhlanganyela ngabaphenyi beNational Oceanic and Atmospheric Administration kanye ne-NASA futhi, ngokwemiphumela efinyelelwe kuyo, kubonakala imbobo ifinyelele ekugcineni kwayo komlando ngoSepthemba 11 lapho ifinyelela kumakhilomitha-skwele ayizigidi eziyi-12.123 ukuqala ukululama kwayo kancane kancane usuku nosuku.

Njengemininingwane, ngikutshele ukuthi lolu cwaningo lungaphezu kokuthakazelisa ngoba yomibili iminyango beziqaphe isimo nobukhulu bomgodi osendleleni ye-ozone kusukela ngo-1985 Ngakho-ke, imiphumela abangayifinyelela imvamisa ithembekile futhi ibalulekile, yingakho-ke lapho bekhuluma ngamanani aphezulu omlando, ilukuluku lethu lenyuka kakhulu.

Umgodi onamandla we-ozone, ngaleli jubane, akulindelekile ukuthi uvalwe kuze kube sekupheleni kwekhulu lama-XNUMX.

Ukungena emininingwaneni ethe xaxa, ngikutshele ukuthi indlela yokukala ubukhulu bomgodi osendleleni ye-ozone yenziwa ngesathelayithi. Uma siqhathanisa lezi zilinganiso nalezo zeminyaka edlule, sithola ukuthi, ngokuhlelekile, imvamisa iveza ubukhulu bayo njalo ngoSepthemba, usuku eqala ngalo ukwehla ngalo. Kwakukule nyanga efanayo ka-Okthoba lapho ubukhulu bayo sebethule ubuncane bayo kusukela eminyakeni yama-XNUMX.

Akungabazeki ukuthi sibhekene nochungechunge lweziphetho ezikhuthazayo, ikakhulukazi uma sibheka ukuthi ngonyaka odlule, kulo mcimbi, iqembu labaphenyi abavela eMassachusetts Institute of Technology lethule uchungechunge lwemibhalo lapho benza khona umphakathi wonke waqonda usosayensi ukuthi babethole ubufakazi bokuthi imbobo kusendlalelo lwe-ozone yayiqala ukuvalwa. Kuleli qophelo futhi ngokwalolu cwaningo, ukuvalwa kwalo kokugcina ngeke kwenzeke, ngaleli jubane, kuze kube sekupheleni kwekhulu lama-XNUMX.

Lokhu kuncane komlando kube ngenxa ye- ukwehluka kwemvelo

Encwadini engemihle, ngikutshele ukuthi ngeshwa ukwelashwa kongqimba lwe-ozone kubonakala ngathi kuhamba kancane ngenxa, phakathi kwezinye izinto, neqiniso lokuthi amazinga e-chlorine ne-bromine present zisabaluleke kakhulu, into engagcini nje ngokwenza kube nzima ukuthi ivalwe, kepha futhi iyenza ibe nkulu. Okungenani, uma sinobufakazi bokuthi ohulumeni bazama ngazo zonke izindlela, noma yilokho abaholi babo abakumemezelayo, ukuze bakwazi ukumisa ukukhishwa kwama-chlorofluorocarbons emkhathini.

Njengoba kuphawuliwe UPaul A. Newman, Umqondisi Wezesayensi Wehlelo Lomhlaba Wezesayensi e-NASA's Goddard Space Flight Center:

Imbobo kusendlalelo se-ozone e-Antarctica ibibuthakathaka kakhulu kulo nyaka. Yilokhu ebesingalindela ukukubona kunikezwa izimo zezulu e-Antarctic stratosphere.

Ngokusho kweziphetho zososayensi, ukuncipha komgodi we-ozone kubonakala ikakhulu kubangelwa i-vortex engazinzile futhi efudumele ye-Antarctic, uhlelo lwengcindezi ephansi ejikeleza ngokwewashi emkhathini phezu kwe-Antarctica olunikele kakhulu ekwehliseni ukwakheka kwamafu asendaweni esezingeni eliphansi le-stratosphere.