Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 4
Articles | Volume 19, issue 4
https://doi.org/10.5194/amt-19-1551-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-1551-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 4
Research article
 | 
03 Mar 2026
Research article |  | 03 Mar 2026

Evaluate the impact of power-law scattering amplitude fitting on dual-polarization radar data assimilation – summertime cases study

Kao-Shen Chung, Chin-Chuan Chang, Bing-Xue Zhuang, Chih-Chien Tsai, Chen-Hau Lan, and Wei-Yu Chang

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Short summary
This study compares two configurations of the dual-polarization observation operator for radar data assimilation. The power-law method efficiently simulates reflectivity but may introduce a bias in differential reflectivity. The direct integration approach yields more accurate and realistic simulations of both variables, with lower residuals, making it the more proper operator for dual-pol radar data assimilation.
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