ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Multiparameter Radar Application in Rainfall Rate Estimation in the Presence of Hail
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Abstract:
Based on multiparameter radar (dualpolarization,dualwavelength,and Doppler)observations of early Summer severe storm accompanied by hail,reflectivity Zh,specific differential phase Kdp at Sband and X-band specific attenuation Ax were applied to estimate rainfall rates.The estimates from radar parameters were compared with groundbased raingage measurements.The results show that both R-Kdp and R-Ax relations were in good agreement with the raingage data,that is,less than 10% difference in the rainfall accumulations.The R-Zh relation produced similar results only when Zh was truncated at 55dBz.This study demonstrates the potential of Kdp for estimating rainfall rates in convective rainstorms with rainhail mixtures.
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