Kubonakala ngathi umngxunya okwi-ozone layer uqala ukuvalwa

Phambi kokuba aqale, kufuneka athethe ngesifundo esisandula ukutyhilwa ngurhulumente othile oxhomekeke kurhulumente wase-United States kwaye uthini ngayo. Umngxunya ohambisa umaleko weozone Yiplanethi yethu, ndikuxelele ukuba ayivalwanga ngokupheleleyo okanye inokuvalwa kwixesha elifutshane, kodwa kunoko, ngokuchaseneyo noko kunokubonakala ngathi, ifikelele kwelona xesha liphantsi.

Emva kokungeniswa okuncinci, kubalulekile kakhulu ukwazi ngokuqinisekileyo ukuba sithetha ngantoni kwaye ngakumbi yintoni Kude kube ngumzuzu wokuqala ukungazikhathazi ngemeko yomaleko weozone ogubungele uMhlaba kwaye oko kuyimfuneko kuthi ukuze siphile. Inyani yile, njengoko oososayensi abaphetheyo kolu phando beqinisekisile, kubonakala ngathi kuyaqala ukuvalwa, nangona kusekutsha kakhulu ukubhiyozela nantoni na.

Ngo-Okthobha ophelileyo umngxunya okwingqimba ye-ozone wafikelela kubuncinci bembali

Uphononongo ekubhekiswa kulo lolona lusandul 'ukudityaniswa ngokudityaniswa ngabaphengululi be-National Oceanic and Atmospheric Administration kunye ne-NASA kwaye, ngokweziphumo esele zifikelelwe kuyo, kubonakala ngathi ngumngxunya ifikelele kwimbali yayo ngoSeptemba 11 xa yafikelela kwizigidi ezili-12.123 zeekhilomitha ukuqala ukubuyiswa kwayo ngokuthe ngcembe imihla ngemihla.

Njengeenkcukacha, xelela ukuba olu phononongo lungaphezulu kunokuba lunomdla kuba zombini ulawulo bebejonga imeko kunye nobungakanani bomngxunya kumaleko we-ozone ukusukela ngo-1985 Ke ngoko, iziphumo abanokufikelela kuzo zihlala zinokuthenjwa kwaye zibalulekile, kungoko xa bethetha ngeembali eziphakamileyo kunye neelows, umdla wethu wokwanda ubonakala kakhulu.

Umngxunya onobuchule be-ozone, kwesi santya, akulindelwanga ukuba uvalwe de kube sekupheleni kwenkulungwane yama-XNUMX.

Ukuya kwiinkcukacha ezithe kratya, ndikuxelele ukuba indlela yokulinganisa ubungakanani bomngxunya kumaleko weozone wenziwa ngesatellite. Xa uthelekisa le milinganiselo naleyo yeminyaka edlulileyo, sifumanisa ukuba, ihlala ibonisa ubuninzi bayo rhoqo ngoSeptemba, umhla eqala ngawo ukwehla. Ikwayile nyanga inye ka-Okthobha xa ubungakanani bento efanayo buveze ubuncinci bayo ukusukela kwiminyaka yoo-XNUMX.

Ngaphandle kwamathandabuzo, sijamelene nothotho lwezigqibo ezikhuthazayo, ngakumbi ukuba sithathela ingqalelo ukuba kunyaka ophelileyo, kwesi sihlandlo, iqela labaphandi abavela eMassachusetts Institute of Technology linike uthotho lwamaxwebhu apho benza ukuba uluntu lonke luqonde isazinzulu lonto ndifumene ubungqina bokuba umngxunya oselukhaleni lweozone uqala ukuvalwa. Okwangoku kwaye ngokolu phononongo, ukuvalwa kwayo kokugqibela akuyi kwenzeka, kwesi santya, kude kube sekupheleni kwenkulungwane yama-XNUMX.

Oku kuncipha kwembali kubangelwe Ukwahluka kwendalo

Kwinqaku elingelilo, xelela ukuba ngelishwa ukuphiliswa kocingo lwe-ozone kubonakala ngathi kuhamba kancinci ngenxa, phakathi kwezinye izinto, kwinto yokuba Amanqanaba e-chlorine kunye ne-bromine okwangoku zisabaluleke kakhulu, into engenzi nje ukuba ingavali, kodwa ikwenze ibe nkulu. Ubuncinci, ukuba sinobungqina bokuba oorhulumente bazama ngazo zonke iindlela, okanye yile nto iinkokeli zabo zibhengeza, ukunqanda ukukhutshwa kwee-chlorofluorocarbons emoyeni.

Njengoko kuphawuliwe UPaul A. Newman, UMlawuli wezeNzululwazi weNkqubo yezeNzululwazi yoMhlaba kwiziko leNASA iGoddard Space Flight Centre:

Umngxunya okwingqimba ye-ozone e-Antarctica wawubuthathaka kakhulu kulo nyaka. Le yinto ebesinokulindela ukuyibona xa inikwa imozulu kwi-Antarctic stratosphere.

Ngokwezigqibo zesayensi, ukunciphisa umngxunya we-ozone kubungakanani kubonakala ikakhulu kungenxa i-Antarctic vortex engazinzanga kwaye eshushu, ujikeleze ngokwewotshi inkqubo yoxinzelelo esezantsi emoyeni ojikeleze iAntarctica enegalelo elibonakalayo ekunciphiseni ukwenziwa kwamafu asepolar kwindawo esezantsi ye stratosphere.