ILa Niña inokuba buthathaka kwiinyanga ezizayo

Germán Portillo

Imizuzu ye2

intombi

Uninzi lwabantu luyayazi le meko El Niño. Nangona kunjalo, Intombi ikwanesiphumo sengxaki ebantwini kwaye ayaziwa nakuluntu.

ILa Niña yinto yemozulu efana no-El Niño, eyinxalenye yomjikelo wendalo wemozulu kwihlabathi. Umntwana ubizwa kanjalo I-Oscillation eseMazantsi. Lo mjikelo unezigaba ezibini: Isigaba esifudumeleyo xa sino-El Niño kunye nesigaba esibandayo xa sine-La Niña. Kodwa zahluke njani?

Xa imimoya yorhwebo Ziphephezela ngamandla zivela entshona, amaqondo obushushu eikhweyitha kunye neendawo eziyingqongileyo ziyehla, ngoko ke isigaba esibandayo esibizwa ngokuba yiLa Niña siqala. Ngokuchasene noko, xa amandla emimoya yorhwebo esiba buthathaka, amaqondo obushushu elwandle anda kunye nenqanaba elifudumeleyo elibizwa ngokuba yi-El Niño.

Ezi zinto zibangela utshintsho kulawulo lwemvula lwayo yonke imimandla yetropiki iinyanga ezininzi kwaye olu tshintsho luyahluka kumaxesha anokwahluka phakathi kweminyaka emihlanu nesixhenxe.

I-La Niña ibe neziphumo ezibi kwiindawo ezahlukeneyo zehlabathi kwi-2015 nakwiinyanga zokuqala zika-2016. Nangona kunjalo, ngokuka Umbutho weMeteorological World (WMO) Le nto iya kuba cala ngakumbi okanye ibuthathaka kwiinyanga ezizayo. Kuxelwe ukuba kukho phakathi Ama-50% kunye nama-65% ithuba ILa Niña ibuthathaka kwiinyanga ezintathu ezidlulileyo zika-2016 nakwiinyanga ezintathu zokuqala zika-2017.

Ezi ziindaba ezimnandi kakhulu emva kweziganeko zento eyenzekileyo e-El Niño kunyaka ophelileyo nasekuqaleni konyaka. Ibi Eyona nto ibaluleke kakhulu eNiño erekhodiweyo Yiyo loo nto amaqondo obushushu aphezulu erekhodwe kwihlabathi liphela. Ezi meko zemozulu zichasene nezigaba zonxibelelwano phakathi komoya kunye noLwandlekazi lwePasifiki, yiyo loo nto ke zibangela iziphumo ezichaseneyo kwimozulu kwiindawo ezahlukeneyo zehlabathi.


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  1. Uxanduva lwedatha: UMiguel Ángel Gatón
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  1.   Eduardo sitsho
    yenzayo 8 iminyaka

    Intombazana ichaphazela njani eSpain?

    Phendula uEduardo
    1.    IsiJamani sasePortillo sitsho
      yenzayo 8 iminyaka

      Ewe kunjalo, nangona kwenziwe izifundo ezininzi ngalo mbandela, kwaye abanye bakwazile ukudibanisa ngokwamanani ukwanda kwemvula kwezinye zoluntu kunye nesenzeko, izigqibo azinabunzima obufunwayo. Ke ngoko, eSpain akukho lonxibelelwano noLa Niña.

      Phendula kuGermán Portillo