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STUDY ON RAINFALL MEASUREMENT AND RAINDROP SPECTRA WITH THE DIFFERENTIAL REFLECTIVITY Z_(DR)TECHNIQUE OF A DUAL LINEAR POLARIZATION RADAR |
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| Authors: | Zhang Hongfa Zhang Yijun Qie Xiushu Lanzhou Institute of Plateau Atmospheric Physics Chinese Academy of Sciences Lanzhou Xu Baoxiang Chinese Academy of Meteorological Sciences |
| Institution: | Zhang Hongfa Zhang Yijun Qie Xiushu Lanzhou Institute of Plateau Atmospheric Physics,Chinese Academy of Sciences,Lanzhou 730000 Xu Baoxiang Chinese Academy of Meteorological Sciences.Beijing 100081 |
| Abstract: | In this paper,it is shown that the differential reflectivity Z_(DR) is related to drop size distribution(DSD)and the spectral shape variation of different truncated diameters.Z_(DR) is a sensitive function to variation of DSD of the spectra.The effects of shape variation of DSD on rainfall can be deduced with a(Z_H,Z_(DR))dual-parameter technique,which is effective to improve the accuracy of rainfall measurement and is of the priority of identifying large particles of hydrometeors(especially hailstone)from the rain region. |
| Keywords: | differential reflectivity Z_(DR) drop size distribution(DSD) dual-parameter measurement technique accuracy of rain measurement polarization radar |
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