Uqikelelo oluchanekileyo lwemvula olunesisombululo esiphezulu sendawo kunye nexesha lubalulekile kwizicelo zokukhupha amanzi ezidolophini, kwaye ukuba luhlengahlengiswa ngokwembono yomhlaba, idatha yeradar yemozulu inokubakho kwezi zicelo.
Nangona kunjalo, uxinano lweegeyiji zemvula zemozulu zokulungisa ludla ngokuba luncinci kwaye alusasazeki ngokufanayo esithubeni. Izinzwa zemvula ezinethuba zibonelela ngoxinano oluphezulu lokujongwa komhlaba kodwa rhoqo ngokuchaneka okunciphileyo okanye okungaziwayo kwisikhululo ngasinye. Eli phepha libonisa ukuhlanganiswa kwedatha evela kwi-radar yemozulu, izikhululo zemozulu zomntu, kunye neekhonkco ze-microwave zorhwebo kwimveliso yemvula edibeneyo. Ukudibanisa uqikelelo lwemvula olunamathuba kuboniswe ukuphucula ukuchaneka kokujongwa kwemvula okunamathuba nge-algorithm yolawulo lomgangatho. Kolu phononongo, sibonisa ukuba ukuchaneka koqikelelo lwemvula kuphuculwe kakhulu ngokudibanisa idatha yemvula enamathuba kunye nedatha yeradar yemozulu xa kuthelekiswa nokuchaneka kwemveliso nganye yemvula ngaphandle kokudibana. Amaxabiso e-Nash-Sutcliffe efficiency (NSE) ukuya kuthi ga kwi-0.88 afunyanwa kwiimveliso zemvula ezihlanganisiweyo eziqokelelweyo zemihla ngemihla, ngelixa amaxabiso e-NSE eemveliso zemvula nganye aqala kwi-−7.44 ukuya kwi-0.65, kwaye imikhwa efanayo ibonwa kwixabiso le-root mean squared error (RMSE). Ukudibanisa idatha ye-radar yemozulu kunye nedatha yemvula enamathuba, indlela entsha, oko kukuthi, "uhlengahlengiso oluhambayo lwe-bias" luvezwa. Ukusebenzisa le ndlela, imveliso yemvula esebenza kakuhle ifunyanwa ngokuzimeleyo kwiigeyiji zemvula ezisemgangathweni ophezulu, ezisetyenziswa kolu phononongo kuphela ukuqinisekisa ngokuzimeleyo. Ukongeza, kubonisiwe ukuba uqikelelo lwemvula oluchanekileyo lunokufunyanwa ngokudibanisa i-sub-day, nto leyo egxininisa ukubaluleka kokudibanisa kwizicelo ze-nowcasting nakwi-real-time.
Ixesha leposi: Meyi-16-2024