Kufungidzira kwemvura kwakarurama uye kwakanyatsojeka munzvimbo nenguva kwakakosha pakushandisa mvura mumaguta, uye kana zvikagadziriswa zvichienderana nekutarisa kwepasi, data re radar yemamiriro ekunze rinogona kushandiswa pakushandisa mvura iyi.
Zvisinei, kuwanda kwezviyero zvemvura zvemeteorological zvekugadzirisa, kazhinji kacho, kushoma uye hakugovani zvakafanana muchadenga. Zvinonzwa mvura zvinopa huwandu hwakawanda hwekutarisa pasi asi kazhinji zvine kururama kwakaderera kana kusingazivikanwe kune imwe neimwe nzvimbo. Pepa iri rinoratidza kusanganiswa kwedata kubva ku weather radar, nzvimbo dzemamiriro ekunze dzemunhu, uye ma microwave ekutengeserana anobatanidza chigadzirwa chemvura chakabatanidzwa. Kubatanidza fungidziro dzemvura dzinopa mukana kunoratidzwa kuti kunatsiridza kururama kwekucherechedza kwemvura dzinopa mukana kuburikidza ne algorithm yekudzora mhando. Muchidzidzo ichi, tinoratidza kuti kururama kwefungidziro dzemvura kunovandudzwa zvakanyanya nekubatanidza data remvura dzinopa mukana uye data re weather radar kana zvichienzaniswa nekururama kwechigadzirwa chega chega chemvura isina kubatanidzwa. Nash-Sutcliffe efficiency (NSE) values inosvika 0.88 inowanikwa kune zvigadzirwa zvemvura zvakaunganidzwa zuva nezuva, nepo NSE-values yezvigadzirwa zvemvura zvinotangira pa -7.44 kusvika 0.65, uye maitiro akafanana anoonekwa kune root mean squared error (RMSE) values. Pakubatanidza data re weather radar ne opportunistic rainfall, nzira itsva, kureva, "moving median bias adjustment" inoratidzwa. Kushandisa nzira iyi, chigadzirwa chemvura inoshanda zvakanaka chinotorwa chakazvimiririra kubva kumagauji emvura emhando yepamusoro, ayo muchidzidzo chino anoshandiswa chete pakusimbisa ega. Pamusoro pezvo, zvakaratidzwa kuti fungidziro dzemvura dzakarurama dzinogona kuwanikwa nekubatanidza pasi pezuva, zvichisimbisa kukosha kwekubatanidza mukushandisa zvino uye pedyo nenguva chaiyo.
Nguva yekutumira: Chivabvu-16-2024