Detect products of Nongbo Doppler radar during the period of typhoon Rananim are analysed. Results show that Rananim's center located by Ningbo radar coincides with the guidance from NMC, reports from Zhoushang and Wenzhou Doppler radar. Velocity products of the Doppler radar can describe the maximum velocity pattern of typhoon Rananim well when comparing the maximum radius velocities of Doppler radars in Ningbo and Wenzhou with the extreme wind speeds occurring at Dachen and Shipu weather stations. Precipitation intensity is in good relationship with products of the echo, their relationship is further discussed, STP is about 50% of the observation.
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