Method of WPR Getting Air Vertical Velocity in Precipitation Cloud

MA Jianli;RUAN Zheng;HUANG Yu

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Plateau Meteorology
Plateau Meteorology ›› 2015, Vol. 34 ›› Issue (3) : 825-831. DOI: 10.7522/j.issn.1000-0534.2013.00161

Method of WPR Getting Air Vertical Velocity in Precipitation Cloud

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Abstract

Base on the fact that the returning signal power spectrum of UHF wind profile radar(WPR) in rainy day may contain the air and raindrops vertical velocity information,which is called BS(Bimodal Spectrum), the research work is done to recognize BS of Beijing Yanqing 445 MHz WPR (CFL-08) vertical beam detecting data from 2009 to 2011, after dealing wih the BS data, the echo intensity of raindrops ZR and the raindrops mean vertical velocity VR can be obtained, and the least square fitting relationship between WT and ZR is described as WT=3.75H-0.085ZR0.006H+0.066, this formula gives an effective method to estimate the air mean vertical velocity for the vertically pointing Doppler radar under rainfall condition.

Key words

Wind profile radar / Vertical radial velo / Air vertical velocit / Terminal velocity of

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MA Jianli , RUAN Zheng , HUANG Yu. Method of WPR Getting Air Vertical Velocity in Precipitation Cloud. Plateau Meteorology. 2015, 34(3): 825-831 https://doi.org/10.7522/j.issn.1000-0534.2013.00161

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