Izilinganiso zokuna kwemvula ezinembile ezinokulungiswa okuphezulu kwe-spatiotemporal zibalulekile ekusetshenzisweni kokugeleza kwamanzi emadolobheni, futhi uma kulungiswa ukuze kube nokubhekwa phansi, idatha ye-radar yesimo sezulu inamandla kulezi zinhlelo zokusebenza.
Ukuminyana kwamageji emvula esimo sezulu ukuze kulungiswe, nokho, kuvame ukuba mancane futhi akusatshalaliswe ngendlela efanayo emkhathini. Izinzwa zokuna kwemvula ezingosomathuba zinikeza ukuminyana okwengeziwe kokubonwa komhlabathi kodwa ngokuvamile ngokunemba okuncishisiwe noma okungaziwa esiteshini ngasinye. Leli phepha libonisa ukuhlanganiswa kwedatha evela ku-radar yesimo sezulu, iziteshi zesimo sezulu zomuntu siqu, nezixhumanisi ze-microwave ezentengiselwano zibe umkhiqizo ohlanganisiwe wemvula. Ukuhlanganisa izilinganiso zemvula ezingosomathuba kukhonjiswa ukuthuthukisa ukunemba kokubonwa kwemvula engosomathuba ngokusebenzisa i-algorithm yokulawula ikhwalithi. Kulolu cwaningo, sibonisa ukuthi ukunemba kwezilinganiso zemvula kuthuthukiswa kakhulu ngokuhlanganisa idatha yemvula engosomathuba kanye nedatha yerada yesimo sezulu uma kuqhathaniswa nokunemba komkhiqizo ngamunye wemvula ngaphandle kokuhlanganisa. Amanani e-Nash-Sutcliffe efficiently (NSE) afika ku-0.88 atholakala emikhiqizweni yemvula ehlanganisiwe yansuku zonke, kuyilapho amanani e-NSE emikhiqizo yemvula ngayinye esuka ku-−7.44 kuya ku-0.65, futhi ukuthambekela okufanayo kuyabhekwa ngamavelu e-root mean squared error (RMSE). Ukuze kuhlanganiswe i-radar yesimo sezulu kanye nedatha yemvula engosomathuba, indlela entsha, okungukuthi, "ukulungiswa kokuchema okumaphakathi" kwethulwa. Ukusebenzisa le ndlela, umkhiqizo wemvula osebenza kahle kakhulu utholakala ngokuzimela kusukela kumageji emvula avamile, kulolu cwaningo asetshenziselwa kuphela ukuqinisekiswa okuzimele. Ngaphezu kwalokho, kuboniswa ukuthi izilinganiso zemvula ezinembile zingatholwa ngokuhlanganisa kwansuku zonke, kugcizelela ukubaluleka kokuhlanganisa ku-nowcasting kanye nezinhlelo zokusebenza eziseduze zesikhathi sangempela.
Isikhathi sokuthumela: May-16-2024