Error analysis of non-spherical raindrops on precipitation measurement |
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| Authors: | XIE Ya-nan ZHOU Xing-li YANG Zheng-de |
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| Institution: | Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China |
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| Abstract: | Radar cross section (RCS) of non-spherical raindrops is calculated by using the software CST based on finite integral method
and compared with RCS of spherical raindrops. The revised factor of non-spherical raindrops is obtained. The radar reflectivity
with precipitation change of four distribution models of M-P, Gamma, JD and JT combining the revised factor is gotten using
trapezoidal integration. When the influence of non-spherical raindrops is considered, the accuracy of precipitation measurement
of four distribution models can be separately improved 8.77%, 8.47%, 10.53% and 8.04% in the case of rain intensity is 100
mm/h. |
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| Keywords: | radar cross section (RCS) the revised factor radar reflectivity accuracy of precipitation measurement |
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