Relationship between radar reflectivity factor and ice water content of non-spherical cirrus ice crystals at 220 GHz
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Affiliation:

1.School of Electronic Engineering, Xidian University, Xi'an 710071, China;2.Science and Technology on Electromagnetic Scattering Laboratory, Shanghai 200438, China

Clc Number:

O451

Fund Project:

Supported by the National Natural Science Foundation of China (62005205), Natural Science Foundation of Shanghai (20ZR1455100), Natural Science Basic Research Program of Shaanxi (Program No. 2020JQ-331)

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    Abstract:

    For the practical needs in the data processing of terahertz radar,the discrete dipole approximation method is used to calculate the backscattering cross-section of non-spherical ice crystals with different shapes. Based on the latest refined ice cloud model, the relationship between the radar reflectivity factor Zm and ice water content I in 220 GHz is established. The calculation results show that both the shapes of the non-spherical ice crystals and the ice cloud model have a particular influence on the Zm-I relationship. This study has application value for cloud parameter inversion of mid-latitude cirrus clouds, and it can be helpful for the development of terahertz radar in the detection of clouds.

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WANG Biao, HUO Yi-Wei, GUO Xing, WU Jia-Ji. Relationship between radar reflectivity factor and ice water content of non-spherical cirrus ice crystals at 220 GHz[J]. Journal of Infrared and Millimeter Waves,2022,41(5):850~855

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History
  • Received:September 29,2021
  • Revised:May 19,2022
  • Adopted:November 23,2021
  • Online: May 19,2022
  • Published: