Kanjani futhi ubani okhetha igama leziphepho

igama lezivunguvungu

Uma sibuka isibikezelo sezulu kumabonakude sibona ukuthi uma kufika isiphepho banikezwa igama lomuntu. Abantu abaningi bayazibuza ukuthi kanjani futhi ubani okhetha igama leziphepho futhi yiziphi izizathu ezikhona ngakho.

Ngakho-ke, kulesi sihloko sizokutshela ukuthi kanjani futhi ngubani okhetha igama leziphepho, izici zazo kanye nezinhlobo zeziphepho ezikhona.

Yini isiphepho

izivunguvungu namagama azo

Isiphepho yisimo sezulu esibonakala ngomoya onamandla kanye nemvula enkulu. Igama elithi "squall" lingase lisuka egameni lesiGreki elithi "boreas," elihunyushwa ngokuthi "umoya wasenyakatho." Leli gama lavela ku-"borealis" ngesiLatini futhi ekugcineni laba "boras".

Ezindaweni ezimaphakathi neziphezulu zeplanethi, uhlelo olukhulu lomfutho ophansi owaziwa ngokuthi isishingishane esingaphandle kwe-tropical kwakheka emkhathini. ISpain ivame ukuthinteka yilezi zinhlelo zesimo sezulu, ikakhulukazi ngesikhathi sasebusika.

Isiphepho ne-anticyclone zinezincazelo eziphambene. Zombili zichaza izifunda zomkhathi ezinomfutho womkhathi ongaphezulu ochezuka kakhulu emkhathini ojwayelekile (1 atm noma 1013 mb). I-Storm ibhekisela ohlelweni oluphansi lokucindezela, kuyilapho i-anticyclone ingeyendawo yokucindezela okukhulu.

Izimo zezulu ezihambisana nokuba khona kwalezi zikhungo ezimbili zomsebenzi zihluke ngokuphawulekayo. Iziphepho zibonakala ngokungazinzi, okuyinto Idala imvula, imimoya enamandla namagagasi ayaluzayo. Ngokuphambene, ama-anticyclone adala izimo zezulu ezizinzile, ngokuvamile ezihambisana nesibhakabhaka esicacile noma inkungu, kanye nemimoya elula ngaphandle kwemvula.

Yini ebangela ukuba kube nesiphepho?

igama leziphepho

"Isiphepho esingaphezu kwe-tropical" siwuhlobo oluvelele lwesiphepho ezindaweni zethu. Lezi zivunguvungu zivame ukuvela lapho izixuku zomoya ezinezici ezihlukile zishayisana eduze kwe-polar front. Uma kukhona indlela eyandulele edala ukungazinzi, Isiphepho sizoba khona endaweni engaphezulu, enezinhlangothi ezihlukanisa izixuku ezihlukene zomoya.

Ngezikhathi zokukhanya kwelanga okunamandla, ingaphakathi leNhlonhlo Yase-Iberia liyashisa, okubangele uhlobo oluhlukile lwesiphepho olwaziwa ngokuthi isiphepho esishisayo noma ukwehla kokushisa.

Ukwakheka kwesiphepho ngasinye kwenzeka ngenxa ye ukwehla komfutho womkhathi endaweni yoMhlaba. Lokhu kuncipha kwengcindezi kuvame ukuphendula ekudaleni "i-vacuum" ebangelwa ukunyuka komoya phezulu usuka phezulu uye ezindaweni eziphakeme emkhathini.

Ukwakheka kwesiphepho kwenzeka ngenqubo ye-cyclogenesis, engadala izinhlobo ezahlukahlukene zeziphepho kuye ngendawo kanye nezindlela eziyisisekelo. Nokho, zonke izivunguvungu zinento eyodwa ezifana ngayo: zibandakanya ukuya phezulu komoya, zidale "i-vacuum" phezulu bese zinciphisa umfutho womoya.

Izici eziyinhloko ezichaza isiphepho

Amasistimu wengcindezi ephansi eyinhloko athinta indawo yase-Spain ngokuvamile azibonakalisa njengeziphepho endaweni epholile. Lezi ziphepho zibonisa isakhiwo esithile, esinamabhande amafu ahlelekile akha izinhlangothi ezihlukene nemikhakha yomoya enezici ezihlukene. Ngaphakathi kwesiphepho esikhulayo, Kungenzeka ukubona kokubili ingaphambili elifudumele nelibandayo.

Kunomoya obandayo, owomile ngaphambi kwengaphambili elifudumele, eliwuhlukanisa nomoya ofudumele noswakeme ngemva kwawo. Lawa macele avame ukuhamba kancane futhi abangele ukukhanya okuqhubekayo kuze kube nemvula emaphakathi, ehambisana nokwenyuka kwamazinga okushisa uma esedlulile.

Ngokuvamile, ingaphambili elibandayo lide futhi lincane uma liqhathaniswa nengaphambili elifudumele. Inhloso yawo ukuhlukanisa umoya ofudumele, oswakeme otholakala ngaphambi kwenqwaba yomoya obandayo, owomile otholakala ngemuva. Ingaphambili elibandayo livame ukukhiqiza isimo sezulu esineziphepho, esibonakala ngezihlambi ezinkulu kodwa ezimfushane. Ngaphezu kwalokho, kuletha imimoya enamandla. Ngemva kokudlula endaweni ebandayo, Amazinga okushisa ehla kakhulu futhi kunezimvula ezingavamile.

Uma isiphepho sesifinyelele ekuvuthweni okugcwele, umoya obandayo uvala umoya ofudumele, okuholela ekwakhekeni kwengaphambili elivalekile. Le phethini yesimo sezulu ehlukile yenzeka lapho izixuku ezimbili zomoya obandayo, eyodwa ebusa kakhulu kunomunye, zihlukana njengoba umoya ofudumele uphoqeleka ukuba ukhuphuke. Ngenxa yalokho, lokhu kuvame ukuholela ezimweni zezulu ezingazinzile, eziphawulwa imvula ephakathi nendawo nehlala isikhathi eside yamazinga ahlukahlukene okuqina.

Kanjani futhi ubani okhetha igama leziphepho

ukwakheka kwesishingishane

Ngesizini yesiphepho ka-2023/24, i-Met Office, i-Irish Met Éirean kanye neRoyal Netherlands Meteorological Institute (KNMI) ngokuhlanganyela bamemezele amagama abo aqokiwe ngoSepthemba. Ngokuhlonishwa kochwepheshe besimo sezulu e-UK yonkana, iqoqo lamagama likhethiwe kulo nyaka ukuze kukhokhelwe iminikelo yabo.

Ukuhambisana nezivumelwano zamazwe ngamazwe, Iziphepho zinikezwa amagama ngokulandelana kwezinhlamvu, ngaphandle kwezinhlamvu u-Q, U, X, Y kanye no-Z. Uhlu lwamagama lukhishwa ekuqaleni kwesizini ngayinye futhi ngokuvamile lushintshana phakathi kwezinketho zabesilisa nabesifazane.

Ngokungafani nokujwayelekile, kulo nyaka kube nekhefu ephethinini ukuze kuvuleke indawo yokwengeza okuphawulekayo. Ekuqaleni kohlu lwama-alfabhethi, amagama amabili okuqala avelayo u-Agnes no-Babet.

I-Storm Ciarán iqokwe ngokusemthethweni njengesiphepho sesithathu kule sizini ethile. Ukukhetha kwakusekelwe ekudumeni kwakho emphakathini, owanikezwa ithuba lokuphakamisa amagama, kodwa okubaluleke kakhulu kwakhethwa njengokuhlonipha u-Ciarán Fearon, isisebenzi esihlonishwayo soMnyango Wengqalasizinda waseNyakatho Ireland.

Ngezikhathi zesimo sezulu esibi neziphepho, kubalulekile ukuqaphela nokwazisa isenzakalo ngasinye sezulu, njengoba lo mzamo udlala indima ebalulekile ekuqinisekiseni ukulungela kwethu nokunciphisa umthelela wezenzakalo ezinjalo.

Iliphi igama elizonikezwa iziphepho ezilandelayo?

UDebi Garft, owayesebenza njengesikhulu senqubomgomo eqenjini likaHulumeni waseScotland wezikhukhula ngaphambi kokuthatha umhlalaphansi, uphume endaweni yesine ohlwini. Ukwengeza, u-Regina Simmons, umholi wethimba le-Alert and Information at Natural Resources Wales, naye uphakathi kwamagama asohlwini.

Ososayensi abadumile basebenza njengogqozi lwamagama asohlwini, lapho isevisi yesimo sezulu yase-Ireland i-Met Éireann nayo inikela khona. Ukwengezwa okuphawulekayo UJocelyn, oqanjwe ngesazi sesayensi yemvelo esidumile uDame Jocelyn Bell.

Ukwengeza ohlwini olukhulayo, i-KNMI ivamise ukufaka amagama omsuka wesiDashi athunyelwa izivakashi unyaka wonke.

Iziphepho zinikezwa amagama yiqembu lezinhlangano lapho kulindeleke ukuthi zibe nomthelela omkhulu e-UK, Ireland noma eNetherlands. Nakuba umoya ngokuvamile uyisici esiyinhloko, ukuba khona kweqhwa noma imvula nakho kungadlala indima ekunqumeni ukuthi isiphepho siqanjwe igama noma cha.

Ngokuka-Will Lang, owengamele ukuqwashisa ngezimo eHhovisi le-Met, umkhuba wokuqamba iziphepho usuneminyaka eyisishiyagalolunye ukhona futhi usasebenza ngempumelelo ekuxhumaniseni izimpendulo ngezikhathi zesimo sezulu esibi.

Umkhuba wokwethiwa kwezivunguvungu kuhloswe ngawo ukwenza ngcono ukuxhumana kwezimo zezulu ezimbi kanye nokuqinisekisa ukucaciseleka kwabantu abangase bahlaselwe yizimo zezulu ezinjalo.

Ngiyethemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana negama lezivunguvungu nokuthi ubani oqamba ngazo.


Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe. Ezidingekayo ibhalwe nge *

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  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.