I-La Niña: Ukuqonda okwenzekayo kanye nemiphumela yaso esimweni sezulu somhlaba

Kuya ngokuya ngokwanda ukuthi I-La Niña phenomenon, ngokombiko we-NOAA. Kodwa yini ngempela ezokwenzeka ngalesi simo sezulu? Imiphi imiphumela esizobhekana nayo ezinyangeni ezizayo? U-El Niño, oshube kakhulu eminyakeni yamuva, uya ngokuya uba buthaka, okuyizindaba ezinhle. Nokho, ukufika kweLa Niña kungase kubangele izinhlekelele zemvelo ezinkulu emhlabeni wonke.

Uyini umcimbi weLa Niña?

I-La Niña phenomenon iyingxenye yomjikelezo womhlaba owaziwa ngokuthi I-El Niño-Southern Oscillation (ENSO). Lo mjikelezo unezigaba ezimbili: isigaba esifudumele, esaziwa nge-El Niño, kanye nesigaba esibandayo, esaziwa ngeLa Niña. I-La Niña yenzeka lapho imimoya yezohwebo ivunguza ngamandla isuka entshonalanga, ibangela ukuphola kwamazinga okushisa enkabazwe futhi iguqule amaphethini ezulu emhlabeni jikelele.

Ngesikhathi semicimbi ye-La Niña, amanzi apholile asuka e-equatorial Pacific Ocean ayavela, abe nomthelela omkhulu esimweni sezulu somhlaba, ikakhulukazi ezindaweni eziseduze. Imiphumela yako iyabonakala futhi ivame ukucekela phansi, idala izimo zezulu ezimbi kakhulu, ezihlanganisa isomiso, izimvula ezinamandla, nezikhukhula.

Iyini imbangela yokwenzeka kweLa Niña?

I-La Niña yenzeka ngenxa yenhlanganisela yezinto ezithinta ulwandle kanye ne-atmospheric. Lesi simo siqala uma kukhona a ukupholisa okungavamile amanzi phezu koLwandlekazi iPacific. Izingcindezi eziphakeme ezakha endaweni yasePacific Ocean zivumela amanzi abandayo ukuba akhuphuke ekujuleni, wona nawo kwandisa imimoya yokuhweba. Le nqubo idala izinguquko ekujikelezeni komkhathi okuthinta izimo zezulu ezingxenyeni ezihlukahlukene zomhlaba.

Ososayensi baye baqaphela ukuthi i-La Niña ingenzeka njalo eminyakeni emi-2 kuya kweyi-7, nakuba ubude bayo kanye nemvamisa kungahluka. Ngokuvamile, i-La Niña ihlala phakathi Izinyanga eziyisi-9 neminyaka emi-3, futhi ukuhlukaniswa kwayo kusekelwe kubukhulu bayo: buthaka, bumaphakathi noma buqinile. Lesi simo singaba nomthelela omkhulu, njengoba kuchazwe ku Iyini i-La Niña phenomenon?, okubalulekile ekuqondeni imiphumela yeLa Niña esimweni sezulu somhlaba.

Imiphumela yesimo seLa Niña

I-La Niña inochungechunge lwemiphumela ethinta izingxenye ezahlukene zomhlaba ngezindlela ezahlukene. Okunye ukubonakaliswa kwayo kuhlanganisa:

Ukwenyuka kwemvula eNingizimu-mpumalanga ye-Asia, ezingxenyeni ze-Afrika, eBrazil nase-Australia, lapho izikhukhula ziba yinto evamile.
Ukwanda kwemvamisa yeziphepho zasezindaweni ezishisayo kanye neziphepho e-United States, ezingaholela ezinhlekeleleni ezinkulu ogwini. Lokhu kubalulekile maqondana nalokho I-NOAA ibikezela isizini yesiphepho esisebenzayo.
Ukuwa kweqhwa okungokomlando ezindaweni ezithile zase-United States phakathi nezinyanga zasebusika.
Isomiso esibi kakhulu emazweni aseNtshonalanga Melika, eGulf of Mexico nasenyakatho-ntshonalanga ye-Afrika, enamazinga okushisa aphansi kunokuvamile.
Imvula eyengeziwe eSpain naseYurophu jikelele, okungase kuthinte ezolimo nengqalasizinda, njengoba kushiwo ku.

Imiphumela ezifundeni ezahlukene zomhlaba

Imiphumela ye-La Niña ayifani futhi iyahlukahluka ngokuya ngendawo:

ENingizimu Melika

ENingizimu Melika, iLa Niña ingabangela isomiso emazweni anjengeBrazil ne-Argentina, lapho ukukhiqizwa kwezolimo kungase kube sengozini. Ukushintshashintsha kwezinga lokushisa kanye nemvula kuthinta umjikelezo wokukhula kwezitshalo ezifana nommbila nobhontshisi wesoya, okungaholela ekwehleni kokukhiqizwa kwezolimo. Lokhu kubalulekile futhi lapho kucatshangelwa ukuthi kanjani I-La Niña ithinta ukukhiqizwa kwezolimo.

ENyakatho Melika

E-United States, izifunda eziseningizimu-ntshonalanga zivame ukuzwa isomiso, kuyilapho iNyakatho-mpumalanga ingase ibhekane nobusika obunzima nge ukuwa kweqhwa okungokomlando. Ugu lwase-Atlantic luvame ukuba neziphepho ezinamandla neziphepho ngenkathi yeziphepho. Kubalulekile ukuqaphela ukuthi ngenxa yeLa Niña, i-.

Europa

I-La Niña, nakuba ingavamile kakhulu, ingaholela ebusika obandayo nobubandayo eYurophu. Imiboniso ingabandakanya a ukwanda kwezimo ze-anticyclonic okuholela esimweni sezulu esomile esifundeni, esingashintsha ukuguquguquka kwe- izimo zezulu esifundeni.

Ngokuphela kwe-El Niño, izazi zezulu ziqaphe ngeso lokhozi ukuthuthukiswa kweLa Niña. Ngokwemibiko yakamuva, maningi amathuba okuthi i-La Niña ithuthuke phakathi kukaJuni no-Agasti, kanye nokwenzeka okuphawulekayo kokuthi lesi simo siqhubekele ekwindla esenyakatho. Ukuqagela kubonisa ukuthi i-La Niña ingafika nayo ukwanda komsebenzi wesiphepho e-Atlantic, okungase kuthinte ukukhiqizwa kukawoyela e-United States futhi, ngenxa yalokho, umnotho womhlaba.

Izenzakalo ezihlobene ne-La Niña azithinti nje isimo sezulu kuphela, kodwa futhi zine imiphumela ebalulekile kwezolimo, umnotho kanye nempilo yomphakathi. Njengoba lesi simo siqhubeka, kuzobaluleka ukuthi amazwe alungiselele futhi athathe izinyathelo ezifanele zokunciphisa imiphumela yawo engemihle.

I-La Niña kanye nomthelela wayo wesimo sezulu ekwindla

I-athikili ehlobene:

I-La Niña: I-Climate Phenomenon kanye Nomphumela Wawo Womhlaba Wonke Ekwindla

Izinyathelo ezisebenzayo zingabandakanya ukuqaliswa kwe izinqubomgomo zezolimo ezisimeme kanye nokwakhiwa kwezinhlelo zokuxwayisa kusenesikhathi ukuze kunqandwe izinhlekelele. Imiphakathi kumele iqinise ingqalasizinda yayo kanye nezinhlelo zokulawulwa kwamanzi ukuze ibhekane nezimo ezimbi kakhulu ezingalethwa yiLa Niña. Ukuze uthole ukuqonda okujulile, kubalulekile ukubonisana mayelana ne ukuguquka kwesimo sezulu kanye nemiphumela yako.

Ukuqonda umcimbi we-La Niña nemiphumela yawo kubalulekile ukuhlela kanye nokusabela ezinseleleni zesimo sezulu. Izenzo zomhlaba jikelele nezendawo zingasiza ukunciphisa imiphumela yazo futhi zivumelane nezinguquko ezizilethayo, njengoba kushiwo ekuhlaziyeni isimo saseLa Niña eminyakeni edlule.

I-La Niña iyinto eyinkimbinkimbi futhi enezici eziningi, futhi isimo sayo singabhekwa ngezindlela ezihlukahlukene, kuhlanganise namasathelayithi namabhuya akala izinga lokushisa kwamanzi nokucindezela. Ukuqonda imijikelezo yabo namaphethini kubalulekile ukuze ulindele imiphumela yabo futhi uphendule ngempumelelo kuyo.

Isimo sezulu saseLa Niña sihlala siyisihloko esisebenzayo socwaningo emphakathini wesayensi, futhi ucwaningo olwengeziwe kulindeleke ukuthi lusize ukuqonda izindlela zalo kanye nemiphumela yesikhathi eside. Ukusebenzisana kwamazwe ngamazwe kuzoba ukhiye ekuxazululeni izinselele ezilethwa yilesi simo kanye nokunciphisa imithelela yaso esikhathini esizayo.