Kwenzeka ntoni ukuba siphelelwa amagama storm Atlantic?

I 2020 Ixesha lenkanyamba yeAtlantiki icinyiwe kwisiqalo-seto-rekhodi, nakwixesha layo langoku, isitshingitshane setropiki sinokodlula uluhlu lwe 21 amagama anokuthi asetyenziswe ukuseka iinkqubo — into enye eye yenzeka ngexesha elinye elahlukileyo kwimbali ebhaliweyo.

Ukusukela ngoLwesine, Ugqibile. 3, bekukho 15 Iinkqubo ezibizwa ngokuba ziitropikhi phakathi kwe-Atlantic basin kunye ne-melancholy enye engachazwanga ngegama, ngokufanelekileyo ngaphezulu kwesiqhelo kulo mgangatho phakathi kwexesha lonyaka. Ngamaxesha athile, zikho ngokulula 12 ebizwa ngokuba ziinkqwithela ngexesha lonke lonyaka.

Ngezaqhwithi ezininzi ngaphambili kunobude bexesha lenkanyamba yeAtlantiki, nguSeptemba. 10, izama kangangoko ukuba ababikezeli bezulu bangasebenzisa inkqubo eyahlukileyo ukubiza iinkqubo zetropiki..

Amagama anokuthi anikwe izaqhwithi kunye nezaqhwithi phakathi kweAtlantiki kumiselwe iminyaka kwangaphambili nguMbutho weHlabathi weMeteorological (WMO).

“Umbono wokuthiywa kwezaqhwithi (iinkanyamba zetropikhi) yaqala kwiminyaka eyadlulayo ngenjongo yokuncedisa ekuchongeni okufutshane kwezaqhwithi kwimiyalezo yesilumkiso ngenxa yamagama acingelwa ukuba kulula kakhulu ukuwakhumbula kunamanani kunye namabinzana obugcisa.,” i-WMO ichaziwe.

Uluhlu lwamagama lunolandelelwano lwealfabhethi, ukuqala ngo-A kwisizini nganye; nangona kunjalo, ayibandakanyi amagama abo bonke 26 oonobumba. Ababikezeli batsiba oonobumba Q, U, X, U-Y no-Z ngenxa yamagama ambalwa kuphela aqala ngaba nobumba.

Emva kokuchonga okokugqibela kuluhlu kusetyenziswe, indlela ezibizwa ngayo izaqhwithi ziguqulelwe kakhulu.

Kuyinto engaqhelekanga kakhulu ukuba kubekho mkhulu kuno 21 ebizwa ngokuba ziinkqwithela ngexesha elinye, kodwa kukho iseti yezalathisi endaweni yomsitho onjalo.

“Kwithuba apho iinkanyamba ezingaphezu kwamashumi amabini ananye ezibizwa ngokuba ziitropikhi zenzeke kulwandle lweAtlantiki ngexesha lonyaka., izaqhwithi ezongezelelweyo ziya kuthatha amagama kwialfabhethi yesiGrike,” iNational Hurricane Heart yathi.

Ngenxa yoku, amashumi amabini anesibini enkanyamba anokuthiywa ngonobumba wokuqala kwialfabhethi yesiGrike, Alpha, yamkelwe yileta yesibini, Beta, kwaye nakanjalo. Kuzo zonke, nazi 24 oonobumba ngaphakathi kwealfabhethi yesiGrike enokusetyenziswa.

Ukusukela ekubizeni igama lezaqhwithi kunye nezitshingitshane zaqala phakathi kwiminyaka yoo-1900, bekukho nje unyaka omnye indawo ibikhona inkulu kune 21 ezibizwa ngokuba zizivunguvungu ngexesha elinye lenkanyamba.

Abadume kakubi 2005 Ixesha lenkanyamba yeAtlantiki libangele ukophulwa kwerekhodi 28 iizaqhwithi ezithiweyo. Iqela lezaqhwithi zomelela zaba ziinkanyamba zembali, kunye noKatrina, URita noWilma ngaloo nyaka. “Ixesha lonyaka laphawula okokuqala ukuba izazi ngemozulu kufuneka zibhenele ekusebenziseni ialfabhethi yesiGrike ukuze kuthiywe iinkanyamba zetropikhi.,” iWMO ithe.

NgoJulayi, Izazi zemozulu zaseAccuWeather zazikhe zanjalo Ukuqikelela ixesha lenkanyamba yeAtlantiki esebenzayo ukuya kuthi ga 24 iizaqhwithi ezithiweyo, kwaye olo qikelelo lujongile ukuze lubuyele kwisiqhamo.

Kweli nqanaba, kukho ithuba elinamandla lokuba ukuchonga nganye nganye isetyenziswe kweli xesha lenkanyamba emva koko abanye. Iingcali zemozulu yaseAccuWeather sele zikho exakekileyo ebeka iliso kwiindawo ezinokubakho ukuze ziphuhliswe kude phakathi kwesitya.

Amagama amathandathu kuphela ahlala esetyenziselwa ukusetyenziswa ngaphambi kokuba ababikezeli kufuneka bafake i-alfabhethi yesiGrike: UPaulette, Rene, Sally, UTeddy, UVicky kunye noWilfred.

Ukuba ialfabhethi yesiGrike kufuneka isetyenziswe kwi 2020, iyakuhambelana noluhlu olufanayo njenge 2005, eqala ngoAlfa. Loo nto ifana nendlela amagama amaninzi aphinda asetyenziswe ngayo kwiminyaka embalwa edluleyo, de uchongiso luthathe umhlala-phantsi.

Nangona kunjalo, kukho umahluko omkhulu phakathi kwamagama asemgangathweni kunye nealfabhethi yesiGrike: Oonobumba bealfabhethi yesiGrike abanokuthi basetyenziswe kwiinkqubo zetropiki abanakuthatyathwa umhlalaphantsi.

“Ukuba uqhwithela olukhulu oluchongwe ngonobumba we-Alfabhethi yesiGrike, kuzo zombini iAtlantiki okanye iJap North Pacific Basin, kwakucingwa ukuba ukufanele ‘ukudla umhlala-phantsi,’ iya kubandakanywa kuluhlu lwamagama adla umhlala-phantsi kunye nonyaka wokuxhaphaka kunye neenkcukacha ezahlukeneyo, nangona kunjalo loo nobumba ngamnye kwi-Alphabet yesiGrike uya kuqhubeka nokufumaneka ukuze asetyenziswe kungekudala okanye kamva,” i-WMO ichaziwe.

Naxa ixesha lenkanyamba yeAtlantiki liphela ngoNov. 30, Nangona kunjalo, kukho ithemba lokuba inkqubo enye okanye ezimbini zetropikhi zinokuphuhliswa kwangethuba 2020 ibandakanya iinkcukacha.

Kufuphi kwincam ye 2005, kulandela ixesha lembali lenkanyamba, I-Tropical Storm Zeta yaqala ukumila kwimpuma yoLwandlekazi lweAtlantiki ngoDec. 30. IZeta yahlala phezu kwamanzi avulekileyo oLwandlekazi lweAtlantiki kwada kwaJan. 7, 2006, ngaphambi kokuba iphele. I-Zeta yayisisivunguvungu sesithandathu ukuba sinikwe idumela kwi-alfabhethi yesiGrike kuloo yr.

Emva kokuba ikhalenda ijikela 2021, le nkqubo ilandelayo yetropiki ngaphakathi kweAtlantiki inokuthiwa yiAna.