Ko te tika o ngā mita rere radar te mea nui e pāngia ana e ēnei āhuatanga: Tuatahi, ngā āhuatanga tāutanga—me poutū te pūoko ki te mata wai, ā, me tāuta ki tētahi wāhanga awa tika (kāore he arai, neke atu i te 5 ngā wā o te whānui o te awa ki runga, ā, 2 ngā wā o te whānui o te awa ki raro) kia kore ai e puta he āpure rere pōrearea (pēnei i ngā awhiowhio me ngā rerenga whakamuri). Tuarua, te tika o ngā tawhā whakawhiti-wāhanga—ko ngā hapa i te whakauru i te rahi me te āhua o te whakawhiti-wāhanga awa (hei tauira, he tapawhā rite, he trapezoidal) ka pā tika ki ngā hua tatau rere. Tuatoru, te pokanoa taiao—ko te hihi hiko kaha, te ua nui, te kohu matotoru, me te maha o ngā mea e mānu ana i runga i te mata wai ka pokanoa pea ki ngā tohu radar. Tuawhā, momo taputapu—ko ngā mita rere radar whakauru e ine ana i te tere me te taumata wai he nui ake te tika i ērā e ine ana i te taumata wai anake. I raro i ngā āhuatanga pai (te whakawhiti-wāhanga noa, te āpure rere pumau, me te ōrite ki ngā pā/awa wai paerewa), ka taea e te tika te eke ki roto i te ±3%; i roto i ngā āhuatanga uaua pēnei i ngā awa tūturu, ko te tika he ±5% ki te ±10%.
Wā tuku: Hepetema-28-2025