Ividiyo: I-NASA isibonisa ukuba yayinjani ixesha lenkanyamba yango-2017

Umbono wesatellite wenkanyamba

U-2017 ibingunyaka uninzi lwethu oluya kuyikhumbula iirekhodi ezahlukeneyo ezaphukileyo, kunye nesixa semathiriyeli kunye nomonakalo wabantu owenzekileyo. Ngokuqinisekileyo Izaqhwithi ezilishumi ezikweleenjiko ezilandeleleneyo ezenze ukuba zibe kwinqanaba lenkanyamba.

Kodwa ikho eminye iminyhadala esingenako ukuyilibala: njengemililo yasendle yaseCalifornia, okanye indlela umoya owuthwala ngayo isanti ukusuka kwintlango yaseSahara ukuya eMelika.

Iplanethi yethu lihlabathi apho unokuthi, yonke into ixhunyiwe. Amaxesha amaninzi asicingi ngayo, kodwa okwenzekayo endaweni enye kunokuchaphazela umhlaba wonke. Izaqhwithi zeAtlantic zenzeka kufutshane nelizwekazi laseAfrika; nangona kunjalo, zichaphazela iMelika.

Kulo nyaka, ngo-2017, kubekho izinto ezininzi ezibangele umonakalo omkhulu, njenge Irma y María, eyafikelela kwelona nqanaba liphezulu kwisikali seSaffir-Simpson. Iziqithi ezikweleenjiko ezifana neDominica, kwiCaribbean, zatshatyalaliswa ngokupheleleyo. EYurophu, ngakumbi eIreland, ngeveki yesibini ka-Okthobha yafika inkanyamba ophelia, eyona inamandla kule minyaka ingama-30 idlulileyo.

Zenzeke njani ezi zinto? Ukuyibonisa, Iziko le-NASA iGoddard likhuphe ividiyo ebonisa. Kuyo, idatha efunyenwe kwiisathelayithi apha enyakeni zidityaniswe neemodeli zemathematics kwikhompyuter yokulinganisa.

Iziphumo yile vidiyo imfutshane ingakholelekiyo apho unokubona ukuba iinkanyamba eziphambili zenziwa njani, zaya phi kwaye zaphela njani zibuthathaka. Ukongeza, uya kuba nakho ukubona ukuba imimoya yawaphatha njani amasuntswana othuli, ityuwa yaselwandle (ngombala oluhlaza okwesibhakabhaka), isanti ukusuka entlango yaseSahara ukuya eMelika (ngombala omdaka) kunye nomsi ovela kwimililo eveliswe kwiPasifiki (ngwevu).


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