Ukugeleza kwamashaneli avulekile kutholakala Emvelweni kanye nasezakhiweni ezenziwe umuntu Emvelweni, ukugeleza okuzolile kubonakala emifuleni emikhulu eduze nezizalo zayo: isb. Umfula iNayile phakathi kwe-Alexandria neCairo, uMfula iBrisbane eBrisbane. Amanzi agelezayo atholakala emifuleni yasezintabeni, ezimfuleni nasezifufuleni. Izibonelo zakudala zifaka phakathi amakhathakhatha oMfula iNayile, iZambesi Rapids e-Afrika kanye nezimpophoma zaseRhine.
I-Wisconsin River kanye nemigoqo yesihlabathi ngo-Aug, 1966 - ibheka phezulu nomfula.
Amashaneli avuliwe enziwe umuntu angaba imigudu yokuphakela amanzi okunisela, ukuphakelwa kukagesi namanzi okuphuza, umgudu wokuthutha ezindaweni zokuhlanza amanzi, imisele yamanzi eziphepho, eminye imithombo yomphakathi, amakholethi angaphansi kwemigwaqo kanye nemizila yezitimela.
Ukugeleza kwesiteshi esivulekile kubonakala ezimeni ezincane kanye nezinkulu. Isibonelo, ukujula kokugeleza kungaba phakathi kwamasentimitha ambalwa ezindaweni zokuhlanza amanzi futhi kube ngaphezu kwamamitha ayi-10 emifuleni emikhulu. Isilinganiso sokugeleza kwesivinini singasukela ngaphansi kuka-0.01 m/s emanzini azolile siye ngaphezu kwama-50 m/s kumzila wokuchitheka kwekhanda eliphezulu. Ububanzi bokukhishwa okuphelele2 kungasuka ku-Q ~ 0.001 l/s ezitshalweni zamakhemikhali kuye ku-Q > 10 000 m3/s emifuleni emikhulu noma ezindleleni ezichithekayo. Esimweni ngasinye sokugeleza, nokho, indawo yendawo yamahhala ayaziwa ngaphambili futhi inqunywa ngokusebenzisa izimiso zokuqhubeka kanye nomfutho.
Ngakho-ke ekuthuthukisweni okusheshayo kwanamuhla kwesayensi nobuchwepheshe, ukuphindaphinda kokubuyekezwa komkhiqizo, okuyimikhiqizo ye-hydrological ekala izinga lokugeleza kwamashaneli avulekile ihlakaniphe kakhulu futhi inembe, ngale ndlela elandelayo:
Isikhathi sokuthumela: Sep-29-2024