Izindlela zesexwayiso sokuqala ku- isimo sezulu athembekile ngokuvamile ekubikezeleni izinhlekelele zemvelo. Ochwepheshe bazi ukuthi bangamodela kanjani ngokunembile ukuziphatha kwezixuku zomoya futhi babe nemininingwane ephelele kakhulu, evela ebusweni bonke bomhlaba.
I-Los iziphuphutheki isimo sezulu baqhubeka nokusabalalisa idatha nezithombe ekusatshalalisweni kwenqwaba yomoya emazwenikazi nasezilwandle. Sinoxhaxha oluminyene lweziteshi zomhlaba nezolwandle emhlabeni eziqoqa idatha ngokuphelele kuzo zonke izinto zezulu ezingxenyeni ezingezansi zomkhathi.
Lokhu kubukwa komhlaba nendawo okuxhunywe uhlelo olusebenzayo lwezokuxhumana ngocingo kuvumela ukuthi izibikezelo ezahlukahlukene zendawo zihlanganiswe zibe uhlelo lomhlaba wonke olukwazi bikezela ukubonakaliswa okwedlulele kakhulu ngesikhathi esiwusizo, ukuze kuthathwe izinyathelo zokuvimbela. Ukubikezela kwesimo sezulu kukuvumela ukuthi waziswe kusengaphambili ngeziphazamiso ezinamandla, okuthi ngenxa yamandla nokuvama kwazo, zibe sengozini yokudala inhlekelele.
I-Los ama-radar isimo sezulu emhlabathini badlala indima ebalulekile ekubikezeleni kwesikhathi esifushane lapha. Benza bakwazi ukwazisa iphuzu lomthelela nokubaluleka kwemvula, imiphumela yayo ekugelezeni kwezifundo zamanzi ilawulwa yizinzwa, okwenza ukuthi kube lula ukuvusa isexwayiso ngesikhathi sokugwema noma ukunciphisa ukugcwala kwemifula. Iningi lamazwe omhlaba linedatha yesimo sendawo se- izifundo de amanzi nangemigodi ye-hydrological, evumela ukubikezela kalula ukusebenza kwamanzi ngokuya kwesikhathi nobungako bemvula.
Kodwa-ke, lawa madivayisi kwesinye isikhathi awanawo ukunemba noma ahunyushwa kabi ngesikhathi esisebenzisekayo. Izibonelo eziningi zakamuva zikhombisa ukuthi ngaphezu kwakho konke ukuntuleka kwenhlangano nokwehluleka ekwazisweni kwe- a ingozi banesibopho sokulinganisa okuyinhlekelele ezimweni ezithile zezulu. Sibhekise ngqo ecaleni lesiphepho uKatrina esisasikhumbula namanje.
Ukuqhuma kwentaba-mlilo
I-Las imishayo intabamlilo kulula ukuzivimbela, ngoba zihambisana nezinto eziningi zomzimba kanye nokuphendula kwamakhemikhali okungabhekwa ngokuzimela komunye nomunye. Ukuqhuma kuhlala kuqala ngaphambi kokuzamazama komhlaba okukhulu nokwanda koqweqwe lomhlaba. Ngokuqondene nokuvuka kwezintaba-mlilo ezingasebenzi, ezinye izinzwa zokuzamazama komhlaba zanele ukukuthola ngesikhathi futhi kuzwakale i-alamu.
Lapho kukhona a ingozi intabamlilo okuseduze, kutholakala, njengoba udaka luqhubeka lubheke phezulu, ukuthi umhlabathi uyakhukhumala, amagesi ayadedelwa, futhi ngasikhathi sinye ukuphazamiseka kwasendaweni kuyaqoshwa emkhakheni wamandla adonsela phansi nasenkingeni kazibuthe Yomhlaba.
Ukubukeka, imvamisa nokuqina kwalezi zimo kuvumela isexwayiso ukuthi sizwakale esikhathini esiphakathi ngokususelwa kudatha enikezwe isethi izinsimbi zokuthola. Lokhu kuhlaziya ukukhishwa kwegesi, ukwahluka ekubunjweni kwenhlabathi ebusweni nokujula, bese kubhala ukuguqulwa ngaphezulu kwenkundla yamandla adonsela phansi noma amandla kazibuthe.
Izinto ziba nzima ngokwengeziwe njengoba udaka lusondela ngaphezulu, lugxilisa imiphumela yalo endaweni encipha ngokwengeziwe. Ngemuva kwalokho kuyadingeka ukulindela inani elandayo le- izinsimbi zokulinganisa ukuze uzungeze indawo engcupheni enkulu. Njengoba ingcindezi yanda, ukubonakaliswa kwamakhemikhali nokwenyama kuyanda.
Lapho kuseduze kakhulu i- ukuqhumaukubona kwakho kusentekenteke ngokwengeziwe kuba. Ngalesi sizathu, izibikezelo zesikhashana esifushane kulesi sizinda azivamile futhi azithembekile ngoba njengamanje asinazo izinzwa nezinsimbi zokulinganisa zazo zonke izintaba-mlilo ezisebenzayo emhlabeni wonke.
Ngokuqondene ne izintaba-mlilo ibhaliswe njengesiqhumane futhi iyingozi, into elula okusobala ukuthi kungaba ukuzungeza indawo engangeni kuyo ezungezile futhi phuma emadolobheni aseduze. Kepha lokhu kulula ukushiwo kunokukwenza, ngenxa yezizathu ezisobala zenhlalo yomnotho.