Recent Progress in Dual-Polarization Radar Research and Applications in China

Kun Zhao, Hao Huang, Mingjun Wang, Wen Chau Lee, Gang Chen, Long Wen, Jing Wen, Guifu Zhang, Ming Xue, Zhengwei Yang, Liping Liu, Chong Wu, Zhiqun Hu, Sheng Chen

Research output: Contribution to journalReview articlepeer-review

75 Scopus citations

Abstract

Dual-polarization (dual-pol) radar can measure additional parameters that provide more microphysical information of precipitation systems than those provided by conventional Doppler radar. The dual-pol parameters have been successfully utilized to investigate precipitation microphysics and improve radar quantitative precipitation estimation (QPE). The recent progress in dual-pol radar research and applications in China is summarized in four aspects. Firstly, the characteristics of several representative dual-pol radars are reviewed. Various approaches have been developed for radar data quality control, including calibration, attenuation correction, calculation of specific differential phase shift, and identification and removal of non-meteorological echoes. Using dual-pol radar measurements, the microphysical characteristics derived from raindrop size distribution retrieval, hydrometeor classification, and QPE is better understood in China. The limited number of studies in China that have sought to use dual-pol radar data to validate the microphysical parameterization and initialization of numerical models and assimilate dual-pol data into numerical models are summarized. The challenges of applying dual-pol data in numerical models and emerging technologies that may make significant impacts on the field of radar meteorology are discussed.

Original languageEnglish
Pages (from-to)961-974
Number of pages14
JournalAdvances in Atmospheric Sciences
Volume36
Issue number9
DOIs
StatePublished - Sep 1 2019

Keywords

  • drop size distribution
  • dual-polarization radar
  • numerical model
  • precipitation microphysics
  • quantitative precipitation estimation

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